摘要
以MODIS遥感影像为基础,在各种气象参数和遥感空间建模的支持下,应用定量遥感反演技术,获取了松嫩平原植被覆盖度、土壤湿度、陆面温度和植被净初级生产力四种生态环境要素的空间分布栅格影像。通过应用GIS空间分析功能,总结了各种生态环境要素的空间分布规律,并对植被覆盖度与土壤湿度、陆面温度和植被净初级生产力之间的相关性分别进行了定量研究。
On the support of meteorological parameters and remote sensing spatial modeling,this paper based MODIS image and used remote sensing quantitative retrieval technique to take the system analysis about the spatial distribu- tion rule of the four ecological environment elements vegetation cover, soil moisture, land surface temperature and veg- etation net primary productivity. Looking from the result,the four kind of environmental essential factors in Songnen Plain present the gradual change tendency from Northeast to the southwest. In order to discuss the correlation of the four environmental essential factors, this paper established the environmental essential factor space attribute database based the remote sensing quantitative retrieval. And then the paper did the quantitative research separately on the correlation between the four factors using statistical software such as SPSS, and fitted the correlativity formula. The fit- ting result indicated that the soil moisture and the vegetation cover had negative correlation; the vegetation net prima- ry productivity and the vegetation cover had twice positive correlation; the land surface temperature and vegetation cover had negative correlation in the same latitude situation. The environmental essential factor correlation research whose center is vegetation cover can promulgate the environment effect change from the vegetation change. This paper can provide support data for grasping the ecological environment changes character and forecasting the ecological envi- ronment changes in Songnen Plain, but also it has great significance for anglicizing the regional ecological environment changes mechanism and carrying on regional environmental improvement and ecological restoration.
出处
《干旱区地理》
CSCD
北大核心
2009年第5期776-782,共7页
Arid Land Geography
基金
国家自然科学基金项目(40572170)
高等学校博士学科点专项科研基金(20050183056
2008D1831033)
关键词
遥感定量反演
生态环境要素
相关性
松嫩平原
remote sensing quantitative retrieval
ecological environment elements
correlation
Songnen Plain
