基于像元二分模型的和布克赛尔县植被覆盖动态变化分析  

Dynamic analysis for vegetation coverage change in Hoboksar based on dimidiate pixel model

作　　者：陈爱京[1] 傅玮东[1] 肖继东[1] 张旭[1] 王蕾[1] 沙依然[1] 

机构地区：[1]新疆维吾尔自治区气候中心,新疆乌鲁木齐830002

出　　处：《草业科学》2012年第6期857-862,共6页Pratacultural Science

基　　金：国家"十二五"科技计划项目"农村物联网综合信息服务关键技术与示范"子项目"新疆特色农业产业物联网信息化技术示范基地建设"(2012BAD35B08-2)

摘　　要：利用2003-2010年每年8月的MODIS遥感数据,基于归一化植被指数的像元二分模型原理,对和布克赛尔县近8年来植被覆盖的变化情况进行遥感监测,并分析了2003-2010年不同时期植被覆盖度的空间分布特征以及面积变化情况。结果表明,和布克赛尔县植被覆盖度由北向南逐渐降低,北部地区长势较好。近8年中,和布克赛尔县的植被覆盖总体略有上升趋势,其中2005年植被覆盖度最高,达到91.18%,部分年份较前一年植被覆盖度略有下降,但幅度不大,说明和布克赛尔县的生态环境建设较好。In this study, we monitored the changes of vegetation coverage based on the normalized differ- ence vegetation index and the dimidiate pixel model, using of MODIS remote sensing data of Hoboksar from 2003 to 2010 in August of each year. We focused on the spatial distribution of vegetation coverage of the different levels and the change of vegetation coverage in this area. The results showed that the vegeta- tion fraction decreased gradually from north to south in Hoboskar. Over the past eight years, the vegeta-tion coverage in Hoboskar was increasing slightly, and the highest coverage had reached 91.18% in 2005. In some years, the vegetation coverage decreased slightly compared with those in the previous years. These results indicate improved ecological environment in Hoboskar County.

关 键 词：MODIS 植被覆盖度 像元二分模型 

分 类 号：Q948[生物学—植物学] TP873[自动化与计算机技术—检测技术与自动化装置]