The aim of this study was to investigate and compare the climate impact from different arable land use options and protein feeds aimed for cattle. This has been made by executing two life cycle assessments (LCAs). The first LCA aimed to compare the following three arable land use options: Cultivation of wheat used for production of bioethanol, carbon dioxide and DDGS Cultivation of rapeseed used for production of RME, rapeseed meal and glycerine Fallow in the form of long-term grassland The second LCA aimed to compare the three protein feeds DDGS, rapeseed meal and soybean meal. In the LCA of arable land, the functional unit 1 ha arable land during one year was used and the LCA had a cradle-to-grave perspective. The LCA of protein feeds had the functional unit 100 kg digestible crude protein and had a cradle-to-gate perspective, hence the use and disposal phases of the feeds were excluded. Bioethanol, DDGS and carbon dioxide produced at Lantmännen Agroetanol, Norrköping, were investigated in this study. The production of RME, rapeseed meal and glycerine were considered to occur at a large-scale plant in Östergötland, but no site-specific data was used. Instead, general data of Swedish production was used in the assessment. The wheat and rapeseed cultivations were considered to take place at the same Swedish field as the fallow takes place. The protein feed DDGS was produced at Lantmännen Agroetanol and the rapeseed meal was assumed to be produced at a general large-scale plant in Sweden. In the soybean meal scenario, a general case for the Brazilian state Mato Grosso was assumed and no specific production site was investigated. Data required for the LCAs was retrieved from literature, the LCI database Ecoinvent and from Lantmännen Agroetanol. In the LCA of arable land use options, system expansion was used on all products produced to be able to compare the wheat and rapeseed scenarios with the fallow scenario. In the LCA of protein feeds, system expansion was used on co-products. The products in the arable land use options and the co-products in the protein feed scenarios are considered to replace the production and use of products on the market with the same function. The result shows that the best arable land use option from a climate change perspective is to cultivate wheat and produce bioethanol, carbon dioxide and DDGS. This is since wheat cultivation has a higher yield per hectare compared to rapeseed and therefore a bigger amount of fossil products and feed ingredients can be substituted. To have the arable land in fallow is the worst option from a climate change perspective, since no products are produced that can substitute alternative products. Furthermore, the result shows that DDGS and rapeseed meal are to prefer before soybean meal from a climate change perspective, since soybean meal has a higher climate impact than DDGS and rapeseed meal. This can be explained by the smaller share of co-products produced in the soybean meal scenario compared to the DDGS and rapeseed meal scenarios. Since the production and use of co-products leads to avoided greenhouse gas emissions (since they substitute alternatives), the amount of co-products being produced is an important factor. A sensitivity analysis was also executed testing different system boundaries and variables critical for the result in both LCAs. The conclusion of this study is that arable land should be used to cultivate wheat in order to reduce the total climate impact from arable land. Furthermore, it is favorable for the climate if DDGS or rapeseed meal are used as protein feeds instead of imported soybean meal.

No description available.

Semi-natural grasslands of the eastern Moravia have big potential to host species-rich plant communities. However, changes in land-use during the second half of the last century were rapid and vast and many grasslands had been ploughed over. In the early 80s some arable lands were sown with low diversity clover-grass mixture and transferred back to grassland. Restoration of grasslands on former arable fields is a major challenge. Their colonisation by grassland species may be complicated by initial seeding productive low diversity seed mixtures. The aim of this study was to estimate differences in species composition and species diversity between ex-arable artificially seeded grasslands and fragments of grasslands with continuity over 70 years in the north part of White Carpathian Mts., SE Czech Republic and identify species traits limiting species ability to colonize the ex-arable grasslands. Target plant species (total of 137) were surveyed on 66 grasslands. Surveyed grasslands were according to continuity and type of management. Coordinates of centroids from each polygon (i. e. surveyed grassland) were used to treat the spatial correlation of the surveyed grasslands. The effect of continuity on species composition and diversity was tested after accounting for differences in the management and...

The aim of the diploma thesis was to evaluate the content of soil organic carbon in the area of Novohradsko. Soil organic carbon was monitored in its stable (SOC) and labile (WSOC) form, followed by the total organic carbon stock (Cpool). These soil parameters were determined in soils of different land cover types (forest, arable land, grassland) in the area formed by the catchments of Pasecký, Bedřichovský, Váčkový and Veverský stream. Data obtained in 2001, 2007 and 2014 were statistically analysed and the comparison of the data from different catchments was conducted. The results show the impact of different land use on the amount of soil organic carbon. In general, a higher amount of soil organic carbon were found in soils of grassland and forest soils, whereas a lower amounts were found in arable land. The comparison and the time development analysis show that there is a trend of the increase in quantity of stable fraction of soil organic carbon in all categories of land cover over the whole monitored period. The opposite trend of a continuous decrease over the whole of the monitored period in all categories of land cover was observed in amounts of labile fraction of soil organic carbon. It can be said that there is an increase in the stock of a stable fraction of soil organic carbon due to lower losses of the labile fraction of soil organic carbon in forest soils, arable soils and soils of grassland.

In this dipoma is priced selected lend and administrative costs by pricing regulation and market price, which is performed by a professional estimate using the comparsion (comparative) method. A case study is considered prices of land in connection with changes in the landscape plan and implementation strategy for rural development. It was also evaluated the degree to which the emergence of zoning and development of services and facilities in rural areas affects the amount of land prices.

我國為配合加入WTO，紓緩日後大量農產品開放進口，對本土農地利用管理與農業生產所帶來的衝擊，政府乃大幅度修正農業發展條例（以下簡稱農發條例），以為因應。該條例及配套法案業於民國八十九年一月四日、六日及十三日經立法院三讀通過，並由總統於同年一月二十六日公布施行。本次農發條例之修正要點，在農地政策方面，主要側重於農地合理的利用、有效地管理與適當的釋出，其中最大的轉變在於調整為「放寬農地農有，落實農地農用」原則，不再限制農地移轉承受人之身份與資格，並有條件地許可農企業法人承受農地。這樣的變革，旨在建立更為開放競爭的耕地買賣市場，增進耕地的流動性，以利農業經營者取得耕地，調整農業經營結構，應值贊同。然而，條文內容有無疏漏不妥？仍有待深入檢討；條文原則性的規定能否落實？尚待相關法令的配合修訂，方能儘速建立合理農地利用、管理與釋出機制，以確保我國的農業發展。 　　緣此，本研究乃就農發條例之研修條文內容，深入探析農地政策與移轉規定之轉變，同時藉由實地調查（問卷調查與深度訪談）及拜訪農政等單位，以瞭解移轉制度變遷之實施現況及其對農業經營之影響程度，並訪察農業經營者之意向及博採各方之想法，據以確實地檢視現行農地移轉制度有關之爭議與問題，再提出研修現行條文、修訂行政命令及研議配合措施等改進意見，冀能有助於促進農地合理利用，並供後續法律修正、執行之參考。最後，再綜合本研究之成果，推衍以下結論： 　　一、調整農地農有制度係時勢潮流，農地農用管理機制應詳加落實。 　　二、實證調查發現，受訪者大抵認同目前農地移轉制度之變革規定，惟對促進農地流動及帶動農業升級助益不大。 　　三、引進農企業法人承受耕地之成效不彰，且牽涉法令繁多，亟待整合修訂。 　　四、制度規則未能公平提供誘因，且未能有效減低執行面之不確定性，應儘速檢討改進並確實執行之。 　　五、農民與農企業法人普遍欠缺對相關法令資訊的瞭解，應加強相關人員之專業訓練與宣傳輔導。 　　此外，在研究過程中，發現仍有相關課題有待未來後續研究，以促使農地更有效利用管理，並能確保農業永續發展，建議如下： 　　一、健全農企業法人承受耕地之管理制度。 　　二、建構重要農業區之區分與保護機制。 　　三、進一步研究農業產銷班與農地利用之關聯性。 / For joining WTO and moderating the impact of the import of agricultural products on agricultural lands use and, management and production, our government reacted by revising the Agricultural Development Act (ADA). The ADA has been revised by the Legislative Yuan on January 4 and promulgated by the Presidential Decree on January 26, 2000. The main point of the revision is to emphasis on reasonable farmland uses, effective management and adequate release of the land regulations in the agricultural policy. The main change is to adjust ADA’s principle from “the right to own and use farmland to be limited to the farmer” to “the release of the restriction on farmland transferee and realization of the substantial farmland uses.” The revision does no longer set a limit to the status and qualification of transferees and permits the transferable rights of agribusiness on some certain conditions. It is approved that the revision is to establish a more open and competitive arable land market, to improve the liquidity of arable lands, to facilitate the acquirement of arable lands for agribusiness, and to adjust the agricultural production structure. However, we should review the completeness and realization of the revised ADA after the promulgation in order to assure the agricultural development. 　　Therefore, the main purpose of this thesis is to probe into the change of the agricultural land policy and transfer regulation from the provisions of the revised ADA, examine the exercising of transfer system change and its influence on agricultural operation, investigate the intention of agricultural managers for reviewing the relative debates and issues, and then offer some advice as references of revision in the future. The conclusion is described as follows: 　　1.It is a trend of the times to adjust the transfer system that the right to own and use farmland is limited to the farmer, and the mechanism of assuring the substantial farmland uses should be realized. 　　2.From empirical research, the interviewees almost agree to the new agricultural land transfer system, but think that it is not useful for accelerating the liquidity and promoting the level of agricultural industry. 　　3.It is not significant on introducing agribusiness to be the transferee of arable lands, and it is necessary for our government to integrate too many relative and complicated laws. 　　4.We should review and implement the revised ADA because the rules themselves cannot provide fair incentives and effectively reduce the uncertainty from exercising it. 　　5.Farmers and agribusinesses lack the knowledge of relative laws, so the government should enhance them the professional training and give them consultant service. 　　In addition, from this research, we also found that some issues need to be studied for effective management of agricultural lands and sustainable development of agricultural industry in the future. 　　1.How to sound the management institution when agribusinesses want to be the transferee of arable lands. 　　2.How to designate important agricultural zones and establish protection mechanism. 　　3.Study the correlation between the agricultural product marketing class and agricultural land uses.