%0 Journal Article
%T A grey model for measuring the stability of arthropod community and its application<br>节肢动物群落稳定性测度的灰色模型及其应用
%A CHEN Chao-Ying
%A <br>陈超英
%J 生态学报
%D 2005
%I 
%X It has been proved in the present paper that the accumulative generation can enhance the covariance of two monotone incremental sequences,which implies that accumulative generation may enhance the linear dependence of two positive correlation sequences to meet the demand of linear fitting. There is a grey positive correlation between numbers of the total individuals and the total species,individual numbers of the pests and their natural enemies in a arthropod community.Based on numbers of the total individuals(m) and the total species(S),individual numbers of the pests(m_p) and their natural enemies(m_n),a grey model for measuring stability of arthropod community is developed using methods of the accumulative generation and the linear regression.The ratios of S/m and m_n/m_p are calculated,and used as stability indexes of the arthropod community.The greater ratio can better stabilize the arthropod community.The model has also been applied to measure the stability of arthropod communities in four tea plantations of Fuzhou,Anxi,Wuyishan and Fuan,Fujian Province.The stability of arthropod communities in the four tea plantations can be grouped into three grades,high-grade,middle-grade and low-grade according to measured values of the stability index using the grey clustering method.The tea plantations of Fuzhou and Anxi are in the high-grade group,the tea plantation of Wuyishan in the middle-grade group,and the tea plantation of Fuan in the low-grade group.The result is basically consistent with the targeted field situation,which well indicates that the grey model is feasible,and that the biodiversity may lead to the stability of communities.
%K tea plantation
%K arthropod community
%K stability
%K grey model
%K grey clustering<br>茶园
%K 节肢动物群落
%K 稳定性
%K 灰色模型
%K 灰色聚类
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=FE163E5DB2274E5937319DE98913EC37&aid=10FC0D810CD51651&yid=2DD7160C83D0ACED&vid=C5154311167311FE&iid=708DD6B15D2464E8&sid=4DC043BA2B54E1C6&eid=586551BC51359E65&journal_id=1000-0933&journal_name=生态学报&referenced_num=1&reference_num=24