%0 Journal Article
%T Spatial Distribution Characteristics of Weed Species Diversity in a Watershed Ecosystem in Southern China''s Hilly Area<br>南方丘陵区小流域生态系统杂草物种多样性的空间分布特征
%A CHEN Jie
%A <br>陈杰
%J 生态学报
%D 2002
%I 
%X Paixichong watershed,a developed watershed in Deqing County,Zhejiang Province,was selected as a case to study the distribution characteristics of weed species richness in a watershed ecosystem in southern China's hilly area by using grid sampling method and combining GIS(Geographic Information System) technology.The results show that different land use patterns have a great impact on weed species composition and species richness distribution.The ecotone of paddy field and sloping land has the largest number of weed species and the highest species richness,while the paddy field has the lowest.Tea plantation and bamboo field,developed for a long time,have a higher weed species diversity,comparing with the newly developed orchard and upland field in the sloping land.
%K weed species diversity
%K watershed ecosystem
%K hilly area
%K spatial distribution characteristics<br>南方
%K 杂草物种多样性
%K 小流域生态系统
%K 丘陵地区
%K 空间分布特征
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=FE163E5DB2274E5937319DE98913EC37&aid=FA29F272EF892320&yid=C3ACC247184A22C1&vid=BC12EA701C895178&iid=38B194292C032A66&sid=78976D931AD1540F&eid=5824536C90612D67&journal_id=1000-0933&journal_name=生态学报&referenced_num=7&reference_num=10