土壤学报2013，Vol.50Issue(3)：492-500,9.
塔里木河干流耕地动态变化及其景观格局
DYNAMIC CHANGE IN CULTIVATED LAND AND LANDSCAPE PATTERN ALONG THE MAINSTREAM OF THE TARIM RIVER
摘要
Abstract
Based on the CBERS images in 2000,CBERS images in 2005 and TM images in 2010,dynamic change in cultivated land and landscape pattern along the mainstream of the Tarim River from 2000 to 2010 were studied using the 3S technology and the analytical method of combining the mathematical statistics and landscape pattern quantity analysis.Results show that the area of the cultivated land along the mainstream of the Tarim River varied significantly,increasing from 1.61 × 105hm2 or 3.89％ of the total land area in 2000 to 3.27 × 105hm2 or7.88％ in 2010,that is,byl.66×104 hm2 a-1 ; spatial variation of the cultivated land was also significant between sections of the river.At Sections A,B,C and D cultivated land spread as wide as 21 ～23 kilometer,11 ～ 16 kilometer,6 ～ 17 kilometer,and 4 ～9 kilometer,respectively and the spread was the fastest at Sections C and D on north bank of the river and Sections D and E on the south bank.During the period from 2()00 to 2010,the cultivated land increased steadily in number of patches with its area weight shape index rising; and its patches becoming more irregular in shape.On the whole,the landscape aggregation degree was moderate; the distribution uniformity of patches various in size within a landscape and landscape diversity declined; and the proportions the various types of landscapes account for became less harmonious.关键词
耕地/时空变化/景观格局/塔里木河干流Key words
Cultivated land/Spatial-temporal variation/Landscape pattern/Mainstream of the Tarim River分类
管理科学引用本文复制引用
白元,徐海量,刘新华,凌红波,赵新风..塔里木河干流耕地动态变化及其景观格局[J].土壤学报,2013,50(3):492-500,9.基金项目
国家重点基础研究发展规划(973计划)(2009CB421308)、国家自然科学基金项目(30970549,41171427)和水利部公益性行业科研专项(201101049)共同资助 （973计划）
