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Position: Home > Articles > Research on the Spatiotemporal Change in NDVI of Birkum Desert in the West of the Taklimakan Desert Research of Soil and Water Conservation 2016,23 (2) 243-248

塔克拉玛干西部别里库姆沙漠NDVI时空变化特征

作  者:
来风兵;张展赫;陈蜀江;陈孟禹
单  位:
苏州科技学院;陕西师范大学旅游与环境学院
关键词:
塔克拉玛干;别里库姆;NDVI;时空变化;气温;降水
摘  要:
基于GIS技术和统计手段,利用GIMMS NDVI和MODIS NDVI数据集,并结合气温和降水0.5°×0.5°格网数据集,分析1981—2014年塔塔克拉玛干西部别里库姆沙漠NDVI时空变化特征。结果表明:(1)研究区NDVI半月值呈下降趋势,NDVI春冬季值整体为上升趋势,NDVI夏秋季值整体为下降趋势,NDVI年均值呈上升趋势;(2)1982—2014年NDVI值增加区域大于减少区域,整体上空间分布向南部移动,NDVI较大值主要在南坡和西坡;(3)植被覆盖度分布在0~0.004 3。
译  名:
Research on the Spatiotemporal Change in NDVI of Birkum Desert in the West of the Taklimakan Desert
作  者:
LAI Fengbing;ZHANG Zhanhe;CHEN Shujiang;CHEN Mengyu;College of Tourism and Environment Science,Shaanxi Normal University;College of Geography and Tourism,Xinjiang Normal University;College of Science and Technology,Suzhou University;
关键词:
Taklimakan;;Birkum Desert;;NDVI;;spatio-temporal response;;temperature;;precipitation
摘  要:
The spatiotemporal change of NDVI and its response to the variations of temperature and precipitation in the west of midstream of Hotan River in the Taklimakan Desert during the period from 1981 to 2014were analyzed using the GIMMS NDVI and MODIS13Q1 time series data.The results reveal that:(1)half month′s NDVI decreased from 1to 12,NDVI in spring and winter rose overall,but it presented the downward trend overall in summer and autumn,annual NDVI rose during the past 32years;(2)from 1982to2014,the spatial distribution of annual NDVI moved to the south.greater NDVI mainly distributed in the southern slope and the western slope,for recent 33 years,increase regional area of NDVI was greater than the decrease in the study area;(3)vegetation coverage ranged from 0to 0.004 3.

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