阿拉尔市生态空间演变规律研究  

A Study on the Evolution of Ecological Space in Aral City

作　　者：罗国娜 罗旭 陈凯遥 张小东 魏玉静[1] 李献灿[1] LUO Guo-na;LUO Xu;CHEN Kai-yao;ZHANG Xiao-dong;WEI Yu-jing;LI Xian-can(Tarim University,Alar 843300,China;Southwest Forestry University,Kunming 650224,China;Institute of Human Settlements and Environment of Southern Xinjiang,Aral 843300,China)

机构地区：[1]塔里木大学水利与建筑工程学院,新疆阿拉尔843300 [2]西南林业大学林学院,云南昆明650224 [3]南疆人居环境研究所,新疆阿拉尔843300

出　　处：《河北地质大学学报》2023年第1期73-79,共7页Journal of Hebei Geo University

基　　金：第一师阿拉尔市科学技术局地区基金项目(2018XX03);中央支持地方高校项目(TDZKSS202011)。

摘　　要：阿拉尔市位于塔克拉玛干北缘的绿洲沙漠,生态环境脆弱。研究绿洲空间的演变规律对于把握沙漠绿洲生态空间、防止沙漠地区荒漠化和促进绿洲区域扩展有着极其重要的意义。以阿拉尔市1994年到2020年Landsat影像为基础,对阿拉尔市的生态环境空间进行空间界定,基于RS、GIS等技术,利用生态空间特征计算方法得到阿拉尔市的生态空间变化规律。结果表明:研究期内总体绿洲范围持续增加,绿洲向北扩展,随着绿洲面积的增加;生态空间总体呈人工化、整合化趋势。破碎化程度降低。绿洲生态空间中农田所占比重较大,其生态空间特征上,在地块破碎度方面逐渐下降,呈整合趋势。在形状指数方面,阿拉尔市的农田地块与同面积正方形间的偏离程度偏小,地形形状的复杂程度较低,形状较为规则。在分形维数方面,农田自相似性较强,地块的形状比较有规律,受人类干扰程度大。The city of Aral is located in the oasis desert on the northern edge of Taklamakan and has a fragile ecological environment.Studying the evolution of oasis space is of great significance for grasping the ecological space of desert oases,preventing desertification in desert areas,and promoting the expansion of oasis areas.Based on the Landsat images of Aral City from 1994 to 2020,this study spatially defines the ecological environment space of Aral City,and based on RS,GIS and other technologies,the ecological spatial characteristic calculation method of Aral City is obtained.The results show that the overall oasis range continued to increase during the study period,and the oasis expanded to the north,with the increase of the oasis area,and the ecological space generally showed a trend of artificialization and integration.The degree of fragmentation is reduced.The proportion of farmland in the oasis ecological space is relatively large,and its ecological space characteristics gradually decline in the fragmentation of the plot,showing an integration trend.In terms of shape index,the degree of deviation between farmland plots in Aral City and squares of the same area is small,and the complexity of the topographic shape is low and the shape is more regular.In terms of fractal dimensions,the self-similarity of farmland is strong,and the shape of the plot is more regularly subject to human interference.

关 键 词：沙漠绿洲 生态空间演变 生态空间特征 阿拉尔 

分 类 号：F062.1[经济管理—政治经济学]