%0 Journal Article
%T RESEARCH PROGRESS ON BIODIVERSITY OF AGRICULTURAL ECOSYSTEM IN THE EUROPEAN COUNTRIES<br>欧洲农田生态系统物种多样性研究进展
%A JIANG Yuan
%A <br>江源
%J 资源科学
%D 1999
%I 
%X Based on study reports and publications,this paper examines the research progress on biodiversity of the agricultural ecosystems in the European countries.Results from recent researches showed that the changes in landscape structure and ecological factors in the habitats exert obvious impacts on species richness in the agricultural ecosystem.The increase of the soil nitrogen content through the nitrogenous fertilization plays a negative role on the distribution of more than 70% of vascular plant species in the Central Europe.It is thus necessary to construct the corridor and island landscape elements within the agricultural ecosystem to conserve biodiversity.
%K Agriculture
%K Landscape
%K Biodiversity
%K Landuse planning<br>农业
%K 景观
%K 生物多样性
%K 土地利用规划
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=9DEEAF23637E6E9539AD99BE6ABAB2B3&aid=59FC5D27D6227C24985B73805D8A9D59&yid=B914830F5B1D1078&vid=659D3B06EBF534A7&iid=94C357A881DFC066&sid=8E6AB9C3EBAAE921&eid=014B591DF029732F&journal_id=1007-7588&journal_name=资源科学&referenced_num=7&reference_num=37