摘要
为研究新疆准噶尔盆地长时序地表生态空间变化特征,基于2000—2018年MODIS 13A3 NDVI月数据,综合运用像元二分模型、一元线性回归模型、差值比较等方法,对准格尔盆地植被覆盖度时空变化特征进行定量分析。近19年,准格尔盆地植被覆盖度呈现波动中增长的变化趋势,平均植被覆盖度值由2000年的0.231增加至2018年的0.261,低植被覆盖度区域面积显著减小;研究区植被覆盖度受外界环境影响波动大,但整体呈微弱增长趋势。研究区近19年平均植被覆盖度呈现增加趋势。
Based on the 2000-2018 MODIS 13A3 NDVI monthly data,a comprehensive analysis of the spatial and temporal changes of vegetation coverage in the Junggar Basin was carried out by comprehensively using pixel dichotomy model,univariate linear regression model,difference comparison and other methods.In the past 19 years,the vegetation coverage of the Junggar Basin has shown an increasing trend of fluctuation.The average vegetation coverage value has increased from 0.231 in 2000 to 0.261 in 2018,and the area of low vegetation coverage has decreased significantly;The vegetation coverage in the study area fluctuated greatly due to the external environment,but the overall growth trend was weak.
作者
张清岚
周纪云
豆培建
岳胜如
Zhang Qinglan;Zhou Jiyun;Dou Peijian;Yue Shengru(College of Water Conservancy and Architectural Engineering, Tarim University, Alar 843300, China)
出处
《黑龙江科学》
2020年第12期8-10,共3页
Heilongjiang Science
基金
塔里木大学大学生创新创业训练计划项目“准噶尔盆地植被覆盖度分析及驱动力分析”(批准号2018049)
塔里木大学校长基金项目“基于3S技术的沙雅县土壤水盐时空变化监测”(批准号TDZKQN201816)。
关键词
准噶尔盆地
像元二分模型
植被覆盖度
时空变化特征
Junggar Basin
Pixel dichotomy model
Vegetation coverage
Spatiotemporal variation characteristics
