The thesis is focused at verifying the functionality of adaptive control of fictive water reservoir. Flow rates are predicted using zonal prediction model. Fictive reservoirs located on the same flow in the other profiles. Functionality is verified by the control in 2000 – 2006. Next functionality is verified by the control in selected years.

No description available.

An extensive multi-channel seismic dataset acquired between 1970 and 1990 by Oljeprospektering AB (OPAB) has recently been made available by the Geological Survey of Sweden (SGU). This thesis summarizes four papers, which utilize this largely unpublished dataset to improve our understanding of the geology and CO2 storage capacity of the Baltic and Hanö Bay basins in southern Sweden. A range of new processing workflows were developed, which typically provide an improvement in the final stacked seismic image, when compared to the result obtained with the original processing. A method was developed to convert scanned images of seismic sections into SEGY files, which allows large amounts of the OPAB dataset to be imported and interpreted using modern software. A new method for joint imaging of multiples and primaries was developed, which is shown to provide an improvement in signal to noise for some of the seismic lines within the OPAB dataset. For the first time, five interpreted regional seismic profiles detailing the entire sedimentary sequence within these basins, are presented. Depth structure maps detailing the Outer Hanö Bay area and the deeper parts of the Baltic Basin were also generated. Although the overall structure and stratigraphy of the basins inferred from the reprocessed OPAB dataset are consistent with previous studies, some new observations have been made, which improve the understanding of the tectonic history of these basins and provide insight into how the depositional environments have changed throughout time. The effective CO2 storage potential within structural and stratigraphic traps is assessed for the Cambrian Viklau, När and Faludden sandstone reservoirs. A probabilistic methodology is utilized, which allows a robust assessment of the storage capacity as well as the associated uncertainty. The most favourable storage option in the Swedish sector of the Baltic Basin is assessed to be the Faludden stratigraphic trap, which is estimated to have a mid case (P50) storage capacity of 3390 Mt in the deeper part of the basin, where CO2 can be stored in a supercritical phase.

Thesis (MScAgric)--Stellenbosch University, 2012 / ENGLISH ABSTRACT: Biochar has been labelled to be a key factor in the global carbon mitigation act and has been described as the modern day equivalent (terra nova) to the terra preta dark earth soils of the Brazilian Amazon. Globally biochar has been evaluated as a means to improve soil fertility and to mitigate greenhouse gases (GHGs). Little research has however been published on the effects of biochar incorporation on soil physical properties. The objective of this study was to evaluate the effect of pine sawmill waste derived biochar (locally-produced via slow pyrolysis – 450°C) on selected soil physical properties, soil-water dynamics and crop production and- performance, when amended to a Kroonstad (Kd 1000 – Morgendal) soil form. This soil form is commonly found in the Western Cape area (South Africa) and can be classified as having low agricultural suitability for perennial- and annual crop species. Two pot trials were carried out in an atmospheric controlled greenhouse, where winter wheat and green beans respectively were planted, with five different application levels of biochar (0t/ha, 1t/ha, 10t/ha, 50t/ha and 200t/ha). Soil physical properties namely, water-stable aggregates, bulk density and water-retention capacity along with physiochemical characterisation of the sandy soil and biochar was determined. The water-use was monitored throughout the trials (evapotranspiration, volumetric water content and biomass water use efficiency, BWUE). The above- and below ground (specific leaf traits for the green bean and the root structural development for the winter wheat) biomass was collected and analysed at harvest. There was significantly higher volumetric water content measured for the 50t/ha and 200t/ha biochar treatments. This effect can be ascribed due to a change in the soil’s tortuosity and porosity where more meso- and micro-pores were present as the biochar rate increased. The same results were evident when a water-retention curve was established in vitro by means of the sandbox method. The bulk densities were only significantly lower for the 200t/ha biochar treatments. The wheat root systems differed greatly among the fertilised biochar treatments: the 50t/ha and 200t/ha treatments had a more complex fibrous root system (more extensive branching and thinner roots) than 0t/ha, 1t/ha and 10t/ha application levels. This is attributed to the increased water-holding capacity along with a reduction of N- and P availability with increasing addition of biochar. Several leaf traits were measured for the green bean crops; however the leaf nitrogen- and carbon content, chlorophyll content index (CCI) and carbon isotope fractionation yielded the most interesting findings. Concerning the fertilised biochar treatments, there was established that the 10t/ha treatments had the highest leaf nitrogen- and carbon content. The leaf chlorophyll content did not differ significantly between the fertilised biochar treatments; however a very interesting observation was evident regarding the measured leaf CCI for the unfertilised treatments. A decreasing trend and lower leaf CCI was measured as the biochar application levels increased. This effect was ascribed to be due to a decrease in N uptake by the plants as the biochar application increased, the C/N ratio also increased, and this leading to N immobilisation. The lowest leaf carbon isotope fractionation was measured for the 10t/ha fertilised treatments and is inversely correlated with BWUE and therefore endorses the conclusion that the 10t/ha biochar application had a positive effect on the long term water use efficiency for the green bean plants. Biochar promoted aggregation in the sand-rhizosphere interface for winter wheat, increased water-holding capacity and enhanced crop performance for green beans. The findings reported here provide new information on the effect of biochar on the structural development of sandy soil, combined with biochar- and root growth effects for winter wheat; along with detailed interpretations of specific leaf traits associated with crop production for commercial green beans. The addition of biochar at low application levels (approximately 1-10t/ha to 15 cm depth) increased the biomass yield and water use efficiency of the crop species. Besides long term carbon storage, biochar can have immediate positive effects on the physical properties of sand and plant growth. / AFRIKAANSE OPSOMMING: Biokoolstof word beskou as ‘n sleutel komponent rakende die wet op globale koolstofvermindering en is al beskryf as die moderne ekwivalent (terra nova) van die terra preta donker-aardgronde wat aangetref word in die Brasiliaanse Amasone. Wêreldwyd word biokoolstof tans geëvalueer met die doel om grondvrugbaarheid te verbeter asook kweekhuisgasse (KHG) se nadelige gevolge te verlig. Min navorsing was tot dus ver gedoen rakende die uitwerking met toediening van biokoolstof op grondfisiese-eienskappe. Die doel van hierdie studie was om die effek van biokoolstof, wat afkomstig is van denne-saagmeul-afval (plaaslik geproduseer is en d.m.v. stadige perolise - 450°C) te evalueer aangaande die volgende faktore: geselekteerde grondfisiese-eienskappe, grond-waterdinamika interaksie en die uitwerking op gewasproduksie; met toediening aan 'n Kroonstad (Kd 1000 - Morgendal) grondvorm. Hierdie grondvorm word as algemeen in die Wes-Kaap (Suid-Afrika) bestempel en kan geklassifiseer word as ‘n lae-geskiktheid landbougrond vir meerjarige- en eenjarige gewasse. Twee potproewe is uitgevoer onder beheerde atmosfeer in ‘n kweekhuis, waar winter koring en groenbone geplant is, met vyf verskillende behandelings van biokoolstof (0t/ha, 1t/ha, 10t/ha, 50t/ha en 200t/ha). Die volgende grondfisiese-eienskappe is ondersoek, naamlik water-stabiele aggregaat formasie, bulkdigtheid en waterhouvermoë, asook die fisiochemiese karakterisering van die sanderige grond en biokoolstof wat gebuik is. Waterverbruik is gedurende die proewe gekontroleer (evapotranspirasie, volumetriese waterinhoud en die biomassa se water verbruiksdoeltreffendheid, BWVD). Die bo- en ondergrondse biomassa, spesifiek die blaareienskappe van die groenboontjie en die strukturele ontwikkeling van die winter koring se wortels, is tydens die oes ondersoek en ontleed. Die volumetriese waterinhoud was betekenisvol, asook hoër vir die 50t/ha en 200t/ha behandelings. Hierdie effek word toegeskryf as gevolg van 'n verandering in die grond se kronkeligheid en porositeit; waar meer meso- en mikroporieë teenwoordig was soos die biokoolstof inhoud toegeneem het. Dieselfde resultate was verkry met die opstelling van ‘n water-retensie kurwe in vitro d.m.v. die Sandboks metode. Bulkdigtheid was slegs betekenisvol verskilled asook aansienlik laer vir die 200t/ha biokoolstof behandelings. Die koring se wortelstelsel het drasties verskil tussen die verskillende bemeste biokoolstof behandelings: die 50t/ha en 200t/ha behandelings het 'n meer komplekse en veselagtige wortelstelsel gevorm (hoër graad van vertakking en dunner wortels was aanwesig) as die 0t/ha, 1t/ha en 10t/ha behandelings. Die effek word toegeskryf aan die toenemende waterhouvermoë, tesame met 'n tekort aan N- en P-beskikbaarheid soos die biokoolstof toedieningshoeveelhede verhoog het. Verskeie blaareienskappe is gemeet vir die groenboon gewasse, maar die blaar stikstof- en koolstof-inhoud, chlorofil inhoud indeks (CII) en koolstof-isotoop fraksionering het die mees interessante bevindinge opgelewer. Die hoogste blaar stikstof-en koolstof-inhoud is gemeet vir die 10t/ha bemeste biokoolstof behandelings. Die blaar chlorofil inhoud het nie beduidend verskil tussen die bemeste biokoolstof behandelings nie, maar daar was egter 'n baie interessante waarneming vir die onbemeste biokoolstof behandelings. ‘n Tendens was aanwesig waar die CII afgeneem het soos die biokoolstof toedieningshoeveelheid ook afgeneem het vir die onbemeste behandelings. Die effek word toegeskryf as gevolg van 'n afname in N-opname deur die plant soos die biokoolstof toedieningshoeveelheid verhoog is en tot gevolg gehad het dat die C/N-verhouding ook toegeneem het, wat gelei het tot N-immobilisasie. Die laagste blaar koolstof-isotoop fraksionering was geassioseer met die 10t/ha bemeste biokoolstof behandelings en is omgekeerd gekorreleerd met BWVD en onderskryf dus die gevolgtrekking dat die 10t/ha biokoolstof behandeling 'n positiewe uitwerking het op die langtermyn waterverbruiksdoeltreffendheid vir groenboontjie plante. Biokoolstof het aggregasie bevorder binne die wortelsone, asook deurgans die waterhouvermoë verhoog en gewasproduksie verbeter. Hierdie bevindinge lewer nuwe inligting oor die effek van biokoolstof op die strukturele ontwikkeling van sanderige grond en die gekombineerde interaksie met biokoolstof toediening en hoe dit wortegroei beïnvloed van winter koring; asook 'n gedetailleerde interpretasie van spesifieke blaareienskappe wat verband hou met die produksie van gewasse vir kommersiële verbouing soos die groenboontjie. Die toediening van biokoolstof by die lae hoeveelhede (ongeveer 1-10t/ha tot op 15 cm diepte) het die opbrengs en waterverbruiksdoeltreffendheid van die gewasse verbeter. Behalwe vir die langtermyn koolstofvaslegging, kan biokoolstof toediening onmiddellike positiewe resultate teweeg bring aangaande die fisiese eienskappe van sandgronde en plantegroei.

Les minéraux nominalement anhydres du manteau terrestre (NAMs) contiennent de l’eau en faible quantité, dissoute sous forme de défauts ponctuels, et qui affecte de manière drastique les propriétés physico-chimiques du manteau supérieur terrestre. Afin de mieux comprendre cet effet, il est nécessaire d’estimer la capacité de stockage de l’eau des phases mantelliques et les mécanismes de solubilité. De nombreuses données expérimentales sur la solubilité de l’eau dans les NAMs tels que l’olivine, le pyroxène et le grenat, sont disponibles dans la littérature. Toutefois, la majorité de ces études ont été réalisées en système simple, et à des températures ou des pressions trop basses pour être représentatives du manteau supérieur terrestre. L’objectif de cette étude était de contraindre les effets combinés de la pression, de la température et de la composition sur la solubilité de l’eau dans l’olivine et le pyroxène dans les conditions du manteau supérieur terrestre. Les expériences ont été réalisées en condition de saturation en eau dans le système MSH enrichi en fer et en fer et aluminium, à 2,5 ; 5 ; 7,5 et 9 GPa, entre 1175 et 1400°C, à l’aide d’une presse multi-enclumes. Les teneurs en eau ont été mesurées par spectroscopie infrarouge en mode polarisé, à partir d’échantillons finement double polis, sur des cristaux orientés de manière aléatoire. Al est incorporé dans l’olivine et le pyroxène selon la réaction de type Tschermak, et diminue avec la pression dans les deux phases. L’ajout d’Al3+ dans le système favorise l’incorporation de H+ dans l’olivine et surtout dans le pyroxène, mais cet effet disparaît à mesure que la pression et la température augmentent. Dans ces conditions, la solubilité de l’eau dans les deux phases est contrôlée par l’activité de l’eau dans le liquide qui se charge de plus en plus en silicates. Le mécanisme majeur de l’incorporation de l’eau dans l’olivine se fait via le remplacement de sites métalliques par 2H+, impliquant que la solubilité de l’eau dans l’olivine est directement proportionnelle à la fugacité de l’eau dans le liquide. Le partage de l’eau entre pyroxène et olivine est toujours inférieur à 1, sauf à basse pression et basse température, quand Al aide à l’incorporation de l’eau dans le pyroxène par rapport à l’olivine. Dans les conditions du manteau convectif profond, l’eau va préférentiellement dans l’olivine. L’effet de la température sur le partage de l’eau entre les deux phases est négligeable. Ces données ont permis de construire un modèle de stockage de l’eau dans l’olivine à toutes pressions et toutes températures, dans le système MFASH. En combinant ce modèle au partage de l’eau entre pyroxène et olivine calculé dans notre étude, et aux données disponibles dans la littérature sur la solubilité de l’eau dans le clinopyroxène et le grenat, nous avons pu modéliser la capacité de stockage de l’eau dans le manteau supérieur terrestre. Ce modèle prédit que la couche de faible vitesse sismique, détectée à 350 km de profondeur par les observations sismiques, peut être expliquée par la fusion partielle de matériel hydraté provenant de la zone de transition et contenant initialement 750 ppm pds H2O. / Trace amounts of hydrogen dissolved as defects in nominally anhydrous minerals (NAMs) in the mantle are believed to play a key role in physical and chemical processes in the Earth’s upper mantle. Hence the estimation of water storage in mantle phases and solubility mechanisms are important in order to better understand the effect of water. Experimental data on water solubility in NAMs are available for upper mantle minerals such as olivine, pyroxenes and garnet. However, the majority of studies are based on single phases, and at temperatures or pressures that are too low for the Earth’s upper mantle. The aim of this study was to constrain the combined effects of pressure, temperature and composition on water solubility in olivine and pyroxene under upper mantle conditions. The solubility of water in coexisting pyroxene and olivine was investigated by simultaneously synthesising the two phases at high pressure and high temperature in a multi-anvil press. Experiments were performed under water-saturated conditions in the MSH systems with Fe and Al at 2.5, 5, 7.5 and 9 GPa and temperatures between 1175 and 1400°C. Integrated OH absorbances were determined using polarized infrared spectroscopy on doubly-polished thin sections of randomly-oriented crystals. Al is incorporated in pyroxene and olivine via the Tschermak substitution and decreases rapidly as pressure increases in both phases. Addition of Al3+ into the system enhances water solubility notably in pyroxene and also in olivine. However, this effect tends to vanish as pressure and temperature increase. Under these conditions, water solubility in both phases is controlled by water activity in the fluid due to dissolution of silicate component. The main mechanism responsible for water incorporation in olivine is 2H+ substituting for metal sites, which indicates that water solubility in olivine is directly proportional to water fugacity. Water partitioning between pyroxene and olivine is always lower than unity except at low pressure and temperature, in which case Al favours water incorporation into pyroxene rather than into olivine. In the conditions of the deep convective mantle, water preferentially goes into olivine. The effect of temperature on water partitioning between the two phases is negligible. The newly collected data allowed the construction of a water storage capacity model in olivine at all pressures and temperatures in the MFASH system. Combining this model with the newly measured partitioning of water between olivine and pyroxene, as well as previous data on solubility in clinopyroxene and garnet, we are able to build a model of the water saturation curve in the upper mantle. This model predicts that the low velocity layer reported by seismic observations at a depth of 350 km depth can be explained by partial melting triggered by the rise of a hydrated mantle-transition-zone material containing 750 wt ppm H2O.

Methane hydrate nucleation and growth in porous model carbon materials illuminates the way towards the design of an optimized solid-based methane storage technology. High-pressure methane adsorption studies on pre-humidified carbons with well-defined and uniform porosity show that methane hydrate formation in confined nanospace can take place at relatively low pressures, even below 3 MPa CH4, depending on the pore size and the adsorption temperature. The methane hydrate nucleation and growth is highly promoted at temperatures below the water freezing point, due to the lower activation energy in ice vs. liquid water. The methane storage capacity via hydrate formation increases with an increase in the pore size up to an optimum value for the 25 nm pore size model-carbon, with a 173% improvement in the adsorption capacity as compared to the dry sample. Synchrotron X-ray powder diffraction measurements (SXRPD) confirm the formation of methane hydrates with a sI structure, in close agreement with natural hydrates. Furthermore, SXRPD data anticipate a certain contraction of the unit cell parameter for methane hydrates grown in small pores.

Depuis la découverte de la piézoélectricité dans le quartz, les besoins en matériaux efficaces pour des applications technologiques piézoélectriques (PZ) et d’Optiques Non-Linéaires (ONL) ont considérablement augmenté. Les deux propriétés doivent présenter une stabilité thermique élevée dans une large gamme de température. Dans le cadre de ma thèse, les matériaux de type quartz BaXO2 (X=Zn ou Co) ont donc été étudiés car ils cristallisent dans le même groupe d’espace P3121 que le quartz-a l'un des matériaux les plus utilisés, principalement pour ses propriétés de PZ et d’ONL.Nous avons commencé ce travail par le composé BaZnO2 car il présenterait un coefficient de couplage électromécanique K11=35,7% supérieur à celui du quartz. Une étude combinée expériences/théorie a permis de i) caractériser la stabilité chimique et thermique jusqu’à 1273 K, et de ii) déterminer les propriétés diélectriques et vibrationnelles (IR-Raman) du matériau. Les propriétés ONL, calculées par DFT, seraient en outre supérieures à celles du quartz.Dans BaCoO2, le degré d’oxydation +II du Co en symétrie tétraédrique implique un ordre antiferromagnétique à température ambiante (TN =330 K). Associé à la structure type quartz, un couplage piézo-magnétique peut être envisagé. BaCoO2 a été caractérisé structuralement/vibrationnellement (résultats confrontés à la théorie) jusqu’à 1273 K et une capacité de stockage d’oxygène réversible exceptionnelle a pu être mise en évidence dans BaCoO2+x (0 ≤ x ≤ 1) par ATG, spectroscopie Raman et par diffraction de rayons X grâce à une séquence de transition topotactique. / Since the discovery of the piezoelectricity in quartz, the need of efficient materials for piezoelectric and non-linear optic technological applications has increased dramatically. Both properties have to exhibit a high thermal stability over a wide temperature range. In my thesis work, the BaXO2 quartz type structure materials (X = Zn or Co) have been studied since they crystallize in the same P3121/P3221 space group than quartz, which is still one of the most widely used minerals mainly due to its piezoelectric properties.We have started this work with the BaZnO2 compound since first-principles-based calculations predicted an electromechanical coupling, k_11=35.7%. Our combined experimental and theoretical study allowed i) to characterize the chemical and thermal stability of BaZnO2 up to 1273 K, and ii) to determine the dielectric and vibrational (IR-Raman) properties of the material. Additionally the non-linear optic responses are predicted to be one order of magnitude higher than those reported for quartz.In BaCoO2, the oxidation state of Co (+II) in a tetrahedral symmetry implies an antiferromagnetic order at room temperature ( T_N=330 K). Associated with the -quartz type structure, a piezo-magnetic coupling can be considered. BaCoO2 was structurally and vibrationally characterized up to 1273 K (as obtained results were confronted to theory) and an exceptional reversible oxygen storage capacity was pointed out in BaCoO_(2+δ )(0 < δ ≤ 1) based on thermogravimetric measurements, Raman spectroscopy and X-ray diffraction characterizations. The oxygen insertion/disinsertion mechanism is governed by a topotactic transition sequence.

Submitted by Biblioteca do Instituto de Física (bif@ndc.uff.br) on 2017-07-04T18:39:14Z No. of bitstreams: 1 Dissertaçao_PierreSoares (1).pdf: 729793 bytes, checksum: 12e5898e33b9602f7b327e003b58716b (MD5) / Made available in DSpace on 2017-07-04T18:39:14Z (GMT). No. of bitstreams: 1 Dissertaçao_PierreSoares (1).pdf: 729793 bytes, checksum: 12e5898e33b9602f7b327e003b58716b (MD5) / Conselho Nacional de Desenvolvimento Científico e Tecnológico / Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro / O uso de redes neurais na solução de problemas é bastante atrativa pois suas características possibilitam desempenho superior ao de métodos convencionais [1]. Dentre os diferentes modelos de redes neurais, o modelo de Hopfield apresenta uma grande importância histórica nesse campo. Neste trabalho estudaremos o problema da capacidade de reconhecimento em uma rede de Hopfield utilizando técnicas de análise de tamanho finito. Vamos comparar os resultados obtidos por diferentes métodos com o intuito de obter o valor de [alfa c], o ponto onde a rede passa por uma transição de fase. Para isso utilizaremos simulações computacionais de redes de Hopfield. / The use of neural networks in problem solution is quite attractive because its characteristics enable superior performance than the conventional methods [1]. Among the different models of neural networks, the Hopfield model has a great historic importance in this field. In this work we will study the capacity problem of a Hopfield network by using finite-size analysis. We will compare the results obtained by different methods to find the value of [alpha c], the point where the network undergoes a phase transition. For this we will use computational simulations of Hopfield networks.

Submitted by Biblioteca do Instituto de Física (bif@ndc.uff.br) on 2017-07-14T18:59:48Z No. of bitstreams: 1 Dissertaçao_PierreSoares (1).pdf: 729793 bytes, checksum: 12e5898e33b9602f7b327e003b58716b (MD5) / Made available in DSpace on 2017-07-14T18:59:48Z (GMT). No. of bitstreams: 1 Dissertaçao_PierreSoares (1).pdf: 729793 bytes, checksum: 12e5898e33b9602f7b327e003b58716b (MD5) / Conselho Nacional de Desenvolvimento Científico e Tecnológico / Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro / O uso de redes neurais na solução de problemas é bastante atrativa pois suas características possibilitam desempenho superior ao de métodos convencionais [1]. Dentre os diferentes modelos de redes neurais, o modelo de Hopfield apresenta uma grande importância histórica nesse campo. Neste trabalho estudaremos o problema da capacidade de reconhecimento em uma rede de Hopfield utilizando técnicas de análise de tamanho finito. Vamos comparar os resultados obtidos por diferentes métodos com o intuito de obter o valor de , o ponto onde a rede passa por uma transição de fase. Para isso utilizaremos simulações computacionais de redes de Hopfield. / The use of neural networks in problem solution is quite attractive because its characteristics enable superior performance than the conventional methods [1]. Among the different models of neural networks, the Hopfield model has a great historic importance in this field. In this work we will study the capacity problem of a Hopfield network by using finite-size analysis. We will compare the results obtained by different methods to find the value of , the point where the network undergoes a phase transition. For this we will use computational simulations of Hopfield networks.

No Brasil, particularmente nas últimas décadas, um considerável número de instrumentos de políticas foram criados, para uma melhor gestão dos recursos naturais do país. Dentre os instrumentos, destacam-se o Zoneamento Ecológico-Econômico e os Planos de Recursos Hídricos, ambos de políticas ambientais distintas, porém com objetivos, em partes, semelhantes, ao proporem, em seu escopo, a criação de áreas sujeitas à restrição de uso para uma melhor gestão do território e dos recursos hídricos, respectivamente. Diante da problemática de dinamizar o planejamento ambiental, este trabalho tem como objetivo analisar a efetividade de ambos os instrumentos de políticas ao considerar o efeito das proposições dos usos do solo sobre a disponibilidade quantitativa dos recursos hídricos de uma bacia. Para testar a efetividade dos instrumentos será desenvolvido um caso de estudo na região norte do Estado do Tocantins, especificamente nas bacias dos rios Lontra e Corda, inseridas no sistema hidrográfico do rio Araguaia. As bacias foram selecionadas por possuírem elaborados um plano de Zoneamento Ecológico-Econômico e um Plano de Bacia Hidrográfica, a serem implantados em uma mesma área. Os rios das bacias em apreço apresentam uma considerável interação com os recursos hídricos subterrâneos, necessitando de uma gestão integrada das componentes hídricas. Aplicaram-se filtros digitais recursivos para separação do escoamento de base do escoamento total de hidrogramas das séries históricas de duas estações fluviométricas (2820000 e 28240000 – Hidroweb/ANA) e observou-se que 80 e 76% das vazões dos rios são mantidas pelos aqüíferos da região. Ao considerarem que os aqüíferos são importantes para manutenção da vazão dos rios e que os mesmos estão localizados em áreas propicias a usos do solo, este trabalho buscou localizar, na área em estudo, as áreas potenciais de armazenamento de água subterrânea, possivelmente áreas de recarga de aqüíferos (CHIARANDA, 2002), a fim de observar as proposições de ambos os instrumentos para as referidas áreas. Com o auxílio de técnicas de ponderação, análise e cruzamento de mapas temáticos em ambiente de Sistema de Informações Geográficas (SIG), foi possível observar que grande parte da área das bacias dos rios Lontra e Corda estão inseridas em classes de muito alta a alta capacidade de armazenamento de água subterrânea. Como resultado da análise da efetividade dos instrumentos, algumas divergências foram observadas quanto à proposição das zonas, que no ato da implementação dos instrumentos poderá acarretar prejuízos econômicos e/ou ambiental para a região, a exemplo, a indicação para uma mesma localidade de criação de áreas restritas ao uso e de ocupação por atividades humanas. Ao realizar o cruzamento das zonas dos ZEE’s sobre as áreas potenciais de armazenamento de água subterrânea, observou-se que ambos os instrumentos propõe áreas de ocupação humana, sobre as áreas de maior potencial de armazenamento de água subterrânea. Não sendo evidenciada nenhuma proposta quanto aos cuidados específicos em relação à preservação destas áreas, não reconhecendo a interação existente entre as águas subterrâneas e superficiais e sua necessidade de gestão integrada para uma melhor qualidade ambiental da região. / In Brazil, particularly in recent decades, a considerable number of policy instruments were created for better management of natural resources of the country. Among the instruments stand out from the Ecological and Economic Zoning and Plans of Water Resources, both of different environmental policies, but with goals, in part, similar to propose in its scope, the creation of areas subject to use restrictions for better land management and water resources, respectively. Regarding the problem of dynamic environmental planning, this work is to analyze the effectiveness of both policy instruments to consider the effect of the proposals of land use on the availability of water resources in a bowl. To test the effectiveness of both instruments will be developed a case study in the northern state of Tocantins, specifically in the basins of the rivers Otter and rope, inserted in the hydrographic system of the Araguaia River. The basins were selected because they have drawn up a plan of Ecological-Economic Zoning Plan and a Watershed, both to be deployed in the same area. The rivers in this basin have a considerable interaction with the groundwater resources, requiring an integrated component of water. Applied to recursive digital filters for separating the base flow of total flow hydrographs of historical series of two gauged stations (2820000 and 28240000 - Hidroweb / ANA) and observed that 80 and 76% of the flows of rivers are maintained by aquifers the region. In considering that the aquifers are important for maintaining river flows and that they are located in areas conducive to land use, this study tried to find, in the study area, the potential areas of water storage underground, possibly recharge areas aquifer (CHIARANDA 2002), in order to observe the propositions of both instruments for those areas. With the help of techniques of measurement, analysis and cross-thematic maps in an environment of geographic information system (GIS), it was observed that much of the area of the basins of rivers Otter and rope are placed in classes for very high discharge capacity storage of groundwater. Based on the analysis of the effectiveness of the instruments, some differences were observed concerning a proposed areas, which at the time of implementation of both instruments may cause economic losses and / or environmental in the region, such as the indication for the same location establishment of restricted areas to use and occupancy by human activities. When performing the crossroad of the exclusive economic areas of potential water storage underground, it was observed that both instruments proposed areas of human occupation on the areas of greatest potential for water storage underground. Not being shown any proposal regarding the specific care for the preservation of these areas, not recognizing the interaction between groundwater and surface water and their need for integrated management for better environmental quality in the region.