自控与受控棉田生态系统稳定性的比较 - 生态学杂志.pdf

2000, 19(2)20- 23 Chinese Journal of Ecology 竺锡武 ( 湖南省农业科学院植物保护研究所, 长沙4 10125) 汪世泽 熊明华 (西北农业大学, 陕西杨陵712100) ( 湖南省益阳市资阳区植保站, 413000) Study on the Stability of Cotton Field Ecosystem Controlled by Insecticide and by Nature. Zhu Xiwu (Institute of p lant Protection, Hunan Academy of Agricultural Sciences, Changsha 4 10125) , Wang Shize ( North western Agricultural University, Yangling , Shanxi 712100 ) , Xiong Minghua( iyang p lant p rotection station, Yiyang , H unan, 413000) . ChineseJournal of Ecolo gy , 2000, 19( 2) : 20- 23. The sta ility of ecosystems is studied in cotton field ecosystems controlled y insecticide and y na ture. The tw o kinds of ecosystems are sta le ecosystem. But t he sta ility of the cotton field ecosys tem controlled y nature is larger than that of the cotton field ecosystems controlled y insecticide. The relation etween diversity and sta ility is analyzed. Key words: controlled, uncontrolled, cotton field ecosystem, sta ilit y, diversity . 1 [ 5] O dum ( ) [6] [7] , [8] , ( ) [ 1,2] [9] , We ster [3] [ 10] , , , We ster , , Odum ( ) ( , , ) O : , , 34 ,