利用遥感数据分析青藏高原水热条件对叶面积指数的影响  

THE APPLICATION OF REMOTE SENSING DATA TO ANALYZING THE INFLUENCE OF WATER/THERMAL CONDITIONS ON LAI OF QINGHAI-TIBET PLATEAU

作　　者：王永前[1,4] 施建成[1,2] 蒋玲梅[3] 杜今阳[1] 孙瑞静[1,4] 田帮森[1,4] 

机构地区：[1]中国科学院遥感应用研究所遥感科学国家重点实验室,北京100101 [2]加州大学圣巴巴拉分校,计算地球科学研究所,美国CA93106 [3]北京师范大学地理学与遥感科学学院,北京100875 [4]中国科学院研究生院,北京100049

出　　处：《国土资源遥感》2008年第4期81-86,共6页Remote Sensing for Land & Resources

基　　金：国家自然科学基金“青藏高原积雪填图研究”(40571101)项目资助

摘　　要：利用遥感数据,以异于传统的点分析方法分析水热条件对植被的影响。以青藏高原为研究区域,利用2003年的遥感数据进行分析。结果表明,在时间轴上,叶面积指数和温度、土壤水分、降雨存在着良好的相关性;在空间分布上,叶面积指数和三者的相关性在大部分区域是呈良好的正相关,在部分区域呈现了弱相关和负相关,且分析探讨了出现这种现象的原因。The growth of vegetation is affected by water/thermal conditions and, in a certain area, there exists a definite relationship between the water/thermal condition and the climate. It is hence very important to probe into the influence of water/thermal conditions on vegetation growth. In this paper, the remote sensing data different from data based on the points in the traditional method were used to do research work in Qinghai -Tibet Plateau. The authors analyzed the remote sensing data of 2003 and the results show that in the time domain, there exists a good correlation between LAI and temperature, soil moisture, and precipitation, and in the spatial domain, the correlation in most of the area is also good. Nevertheless, there also exist some weak and negative correlations, which are also discussed in this paper.

关 键 词：青藏高原 叶面积指数 水热条件 相关性 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]