西双版纳大卡老寨农地景观格局变化 - 生态学杂志.PDF

2001, 20( 4) : 28- 31 Chinese Journ l of Ecology * 付永能 陈爱国 郭辉军 崔景云 ( 中国科学院西双版纳热带植物园, 云南勐腊 666303) Agricultrural Andscape Change Pattern in Daka Village, Xishuangbanna. Fu Yongneng, Chen Aiguo, Guo Huijun, Cui Jingying( X ish uang banna Trop ical Botan ical Gar den , Ch inese A cademy of Sciences , M engla, Yunnan 666303) Chinese Jour nal of Ecology , 2001, 20(4) :28- 31. T his p per de ls w ith v ri tion of grol ndsc pe p ttern in D k vill ge, Xishu ngb nn , Chin w ith follow ing indices: number nd size of p tches, indices of p tch isol tion nd fr gment tion, ! indices of l ndsc pe diversit y, domin nce, nd evenness, ∀ l ndsc pe coefficient . The result showed th t the me n p tch size of forest nd gr ssl nd community decre sed w hile th t of the c sh crop g rden incre sed. The indices of isol tion for forest nd c sh crop g rden community incre sed decre ged w hile th t for the gr ssl nd decre sed. Correspondingly, the index of l ndsc pe domin nce decre sed w hile the diversity nd evenness incre sed from 1. 4173 nd 0. 6450 to 1. 4595 nd 0. 6642 repectively . The l nd utiliz tion coefficient index incre sed from 191. 4 to 238. 3 throughout fter 14 ye rs. Key ords: grol ndsc pe, l dsc pe p ttern, p tch, l nd utiliz tion coefficient index. : P901 : A : 200 1) , 1983 1997 , 1. 2. 2 , [ 1~ 4] , [ 6] , [5] 9 , , ; , ; ! 1 ; ∀ 1. 1 , ; ∗ , N21%41, E101%25, ; + 8k