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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Disturbance History Of A Mixed Conifer Stand In Central Idaho, USA

Arabas, Karen B., Black, Bryan, Lentile, Leigh, Speer, Jim, Sparks, Jodi 12 1900 (has links)
We apply a combination of suppression and release criteria to reconstruct the disturbance history of a ponderosa pine – Douglas-fir stand in central Idaho. In this stand, disturbance, likely fire, induced growth releases in some trees, and sudden, severe suppressions in others. To characterize growth release following disturbance, we developed boundary-line release criteria for Douglas-fir and ponderosa pine. Suppression criteria were applied to identify disturbances defined as a growth reduction of more than 1.8 standard deviations sustained for a minimum of five years. To prevent confusing a true release event with growth increases associated with recovery from suppression, release events were not tallied for at least fifteen years following a suppression event. Release and suppression events were combined to create a disturbance chronology characterized by a high frequency of disturbance between 1820 and 1920. This period of disturbance likely reflects post-European settlement land uses such as grazing and logging as well as an increase in fire frequency. Fire suppression in the latter part of the 20th Century likely explains the decrease in disturbance after 1940. We believe that a combination of release as well as suppression criteria best describes the disturbance history of this stand.
2

Self-Thinning Boundary Line and Dynamic Thinning Line in Prince Rupprecht's Larch (Larix principis-rupprechtii Mayr) Stands

XUE, Li, 薛, 立, OGAWA, Kazuharu, 小川, 一治, HAGIHARA, Akio, 萩原, 秋男, HUANG, Baolin, 黄, 宝霊, LONG, Xinmao, 竜, 新毛, CHEN, Biao, 陳, 彪 12 1900 (has links) (PDF)
農林水産研究情報センターで作成したPDFファイルを使用している。
3

PROMĚNA AREÁLU BRNĚNSKÝCH VELETRHŮ / TRANSFORMATION OF THE TRADE FAIR AREA IN BRNO

Dohnalová, Kamila January 2017 (has links)
Study of revitalisation of an east side of trade fair area in Brno is focused on incorporating area to the city structure, this requires to make the area accessible. Attention is payed to movement of physical bareer, designing different form of boundary line between the city and the Trade fair area, densification of new city structure, public space, solution of transport situation and sustainable strategies applied to the area.

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