基于GIS的北方农牧交错带荒漠化遥感动态监测与成因分析——以内蒙古通辽市为例  

Dynamic remote sensing monitoring and analysis on desertification in the northern farming-pastoral zone based on GIS——A case of Tongliao,Inner Mongolia

作　　者：于显双[1] 赵明[2] 陈凤臻[1] 王坤[3] 

机构地区：[1]赤峰学院资源与环境管理系,赤峰024000 [2]内蒙古师范大学地理科学学院,呼和浩特010010 [3]吉林省交通职业技术学院,长春130061

出　　处：《干旱区资源与环境》2010年第4期107-111,共5页Journal of Arid Land Resources and Environment

基　　金：内蒙古自治区教育厅自然科学重点项目(项目编号:NJ09169)资助

摘　　要：运用MSS、TM、ETM、CBERS-2四期遥感数据,采用参数统计、空间强度等值线追踪和重心点迁移等分析方法,全方位、多时段动态监测我国北方农牧交错带代表区域—通辽市的荒漠化动态变化情况,并用地质、气候、土地利用数据分析论证了北方农牧交错带荒漠化消长的根本原因。研究发现:近32年(1975～2007年)来,通辽市沙漠化面积经历了增加-减少的过程,其重心位于开鲁县东来镇附近;通辽市的盐碱化面积呈现了减少-增加-减少态势,其重心位于科左中旗宝龙山镇附近。研究认为在自然条件(地质、气候等)大背景制约下,北方农牧交错带荒漠化在几十年时间尺度内演变的根本原因在于人类土地利用结构合理与否。Using four periods RS data of MSS,TM,ETM,CBERS-2,applying the methods of parameters statistical,spatial intensity contour tracking and gravity center migration analysis,the dynamic changes of desertification multi-period and multi-round in Tongliao,which is the typical region of the farming-pastoral zone in north of China were analyzed with the geology,climate,land-use data.It was shown that the desertification of Tongliao experienced a process of increasing to reduction in the nearly 32 years（1975~2007）,and the gravity center was located near the town of Kailu.The area of salinity showed a trend of decrease,increase,and decrease,and its gravity center was located near the Kezuozhongqi Longshan town.The study suggested that the fundamental reason of the desertification evolution in the northern farming-pastoral in the past years was the land-use structure change.

关 键 词：农牧交错带 荒漠化 遥感 动态 通辽市 

分 类 号：X87[环境科学与工程—环境工程]