黑土区气候生产潜力与植被指数关系的分析  

Dynamic analysis on relationship between climatic potential productivi ty and vegetation index in black soil zone

作　　者：孙彦坤[1] 王鼎震[1] 徐晓伟[1] 张翼飞[2] 沃晓棠[1] 玄明君[1] 

机构地区：[1]东北农业大学资源与环境学院,哈尔滨150030 [2]内蒙古大学,呼和浩特010021

出　　处：《东北农业大学学报》2012年第11期103-109,共7页Journal of Northeast Agricultural University

基　　金：国家科技支撑计划(2008BAD95B06-03);UNDP绿色发展项目(CPR/06/209)

摘　　要：研究以东北黑土区内的依安、拜泉县为研究区,在收集两县的气候、图像等资料的基础上,利用RS和GIS方法来讨论黑土区气候生产潜力与归一化植被指数(NDVI)的变化和二者的关系。结果表明,研究区在1979-2001年的22年间土地利用/覆盖变化的总体趋势为:耕地面积和居民地面积表现为较大幅度增加,分别增加了46 559和8 152 hm2,而草地面积则减少了62 163 hm2;归一化植被指数与气候生产潜力在研究区的分布趋势有一致性,由西南向东北数值逐渐升高,最高值出现在拜泉县的东北部,最低值出现在依安县的西南部。通过以上结果提取数据分析进行黑土区气候生产潜力与植被指数相关性的研究,结果为气候生产潜力与归一化植被指数呈显著的正相关性。Two counties Yi＇an and Baiquan in northeast black soil zone were taken as the research areas and the data of climate and images in the two counties were collected, and the changes of climatic potential productivity and normalized difference vegetation index （NDVI） in black soil zone and the relationship between them were discussed by using the methods of RS and GIS. The results showed that, the general trend of land change on usage and coverage in research area from 1979 to 2001 was that cultivated area and residential area increased greatly by 46 559 hm2 and 8 152 hm2,respectively, but the grassland area decreased by 62 163 hm2. The distribution trends of NDVI and climatic potential productivity in research areas had a certain consistency, of which the values increase gradually from southwest to northeast, with the peak in the northeast of Baiquan and the lowest value in the southwest of Yi＇an. With an analysis on data extracted from the above results, research on correlation of climatic potential productivity and vegetation index in black soil zone was did, of which the result was that climatic potential productivity and NDVI showed a significant positive correlation.

关 键 词：黑土区 气候生产潜力 植被指数 

分 类 号：P208[天文地球—地图制图学与地理信息工程] S162.5[天文地球—测绘科学与技术]