Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Acta Zoologica Sinica》 1984-04
Add to Favorite Get Latest Update

SPATIAL DISTRIBUTION OF VARIOUS ECOSYSTEMS

Niu Wenyuan (Institute of Geography, Chinese Academy oj Sciences)  
As an important aspect of ecological researches, the spatial distribution of vavious ecosystems have been studied during the last twenty years.One particularly useful application of spatial patterns analysis is to monitor the dynamic of ecosystems succession. On the other hand, it can be considered as a significant method to classify ecosystems existing in certain geographical regions. By this approach, the stability of ecosystems can be evaluated, and the primary productivity of the ecosystems can be also estimated.Considering the distribution of points in a plane,the E-index(Executive Index) has been designed with the application of the nearest neighboring analysis, the gravity theory,and probability theory.In this study,the calculation of the E-index spectrum has been listed. The author has adopted the distance between two nearest neighboring quadrats containing points rather than that between two points as a conventional method to make the E-index.Some spatial adjustments and managements of ecosystems in more accurate and efficient ways can be suggested by the threshold of E-index.Applications and verification of the E-index were elucidated by some examples in this paper.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 WANG Zhan (Department of Geology, Northwest University, Xi'an 710069, China);CAUSE OF STRUCTURE DIFFERENCE OF LOESS LAYER AND ITS EFFECT ON NATUEAL ENVIRONMENT[J];Journal of Safety and Environment;2001-03
2 XU Xuegong\ LIN Huiping\ FU Zaiyi (Department of Geography,Peking University,Beijing,100871) BU\ Rencang (Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang,110015);Regional Ecological Risk Assessment of Wetland in the Huanghe River Delta[J];Acta Scicentiarum Naturalum Universitis Pekinesis;2001-01
3 DU\ Guoyun (Department of Urban and Environmental Sciences,Peking University,Beijing,100871);Statistical Analysis of the River Networks on Neotectonic Divergency of East and West Parts in Jiaodong Peninsula[J];Acta Scicentiarum Naturalum Universitis Pekinesis;2001-03
4 ZENG Hui\ GUO Qinghua\ LIU Xiaodong (Department of Urban And Environmental Sciences,Peking University,Beijing,100871);Experimental Research of Spatial Resolution Effects for Landscape Pattern A Case Study of the Eastern Part in Zhujiang Delta[J];ACTA SCICENTIARUM NATURALUM UNIVERSITIS PEKINESIS;1998-06
5 Han Xingji (Department of Forestry Economics and Information);Mathematical Simulation of Individual Tree Growth of Pinus tabulaeformis[J];Journal of Beijing Forestry University;1988-01
6 Xu Huacheng(Forest Resources College, BFU);New Forestry:Theory and Practice[J];Journal of Beijing Forestry University;1991-04
7 Zheng Xiaoxian;Wang Wei.College of Resources and Environment, Beijing For. Univ., 100083, P.R.China.;Study on index system of commercial forest.[J];Journal of Beijing Forestry University;2001-03
8 Kang Xingang; Hu Wenli; Dong Jinglin; Wang Desheng; Li Donglan. School of Resources and Environment, Beijing For.Univ.,100083,P.R.China.;Forest structure dynamics of coniferous-broad leaved mixed forests by management of control method in over-logged forest region[J];Journal of Beijing Forestry University;2003-06
9 Tang Jilin;Liu Yulin;Li Xinbin(College of Forest Resources and Environment. BFU 100083)Duan Yonggang(Forestry Bureau of Guandi Mountains.Wenshui.Shanxi 032104);Analysis on the Relationship Between Environmental Gradient and Plant Communities in Guandi Mountains,Shanxi Province[J];JOURNAL OF BEIJING FORESTRY UNIVERSITY;1995-04
10 Sun Baoping Yue Depeng Zhao Tingning Cheng Tangren (College of Soill and Water Conservation, BFU 100083);The Evaluation of the Spatial Landscape Pattern of Farmland Shelterbelt Networks in Beizang Town,Daxing County,Beijing[J];JOURNAL OF BEIJING FORESTRY UNIVERSITY;1997-01
【Secondary References】
China Proceedings of conference Full-text Database 1 Hits
1 SHU Qing-tai1 LIAO Sheng-xi2 (1 Faculty of Resource, Southwest Forestry College, Kunming 650224, Yunnan, China; 2Institute of Forest Resource insects , Chinese Academy of Forestry, Kunming 650224, Yunnan, China);Studies on Classifation and Succession of Pinus yunnanensis Natural Forest Landscape Based on Data of Class Ⅱ investigation to forest resources[A];[C];2009
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved