摘要
利用NOAA-AVHRR数据,以归一化植被指数(NDVI)作为植被覆盖特征的指标,研究1982—2000年西藏地区地表植被覆盖的空间分布及时间序列变化,讨论了各季节植被活动的状况。并通过计算不同时段降水量与年最大NDVI、典型区域NDVI与降水、平均温度之间的相关系数,分析了不同植被类型下气象要素与植被覆盖的关系。
With NOAA-AVHRR dataset,NDVI （Normalized Difference Vegetation Index） as index of vegetation cover feature, this paper analyzed the spatial distribution and temporal variation of vegetation cover over Tibet area. It investigated the vegetation status during different seasons, along with the relation between meteorological factors and vegetation cover with different vegetation type. These studies are based on the correlation coefficient between precipitation at different periods and maximum NDVI, NDVI in typical area and precipitation, temperature.
出处
《气象科学》
CSCD
北大核心
2007年第5期488-494,共7页
Journal of the Meteorological Sciences
基金
中国气象局2006年气候专项项目(编号:CCSF26-24)
成都高原气象开放实验室基金
关键词
西藏地区
气象要素
植被覆盖
Tibet area Meteorological factor Vegetation cover
