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东北地区农业气候资源空间分布模型的建立
作者姓名:王宗明  宋开山  张 柏  刘殿伟  李 方  徐京萍
作者单位:中国科学院东北地理与农业生态研究所,中国科学院东北地理与农业生态研究所,中国科学院东北地理与农业生态研究所,中国科学院东北地理与农业生态研究所,中国科学院东北地理与农业生态研究所,中国科学院东北地理与农业生态研究所 长春,130012,长春,130012,长春,130012,长春,130012,长春,130012,长春,130012
基金项目:国家自然科学基金;中国科学院知识创新工程项目
摘    要:在GIS支持下,以中国东北地区(辽宁、吉林、黑龙江)3省的DEM(数字高程模型)为基础,建立经度、纬度、海拔高度等大地形因子数据库及坡度、坡向、遮蔽度等小地形因子数据库。利用东北地区各县市1961—2000年气温、降水和相对湿度数据,采用三维二次趋势面模型进行逐步回归,构建东北地区逐月主要农业气候要素与宏观地理因子的数学模型。最终完成东北地区各气候要素空间分布的综合数学模型,并利用GIS平台建立空间分辨率为1km×1km的主要农业气候要素的网格化数字专题图。农业气候空间分布模型与栅格化数据库的建立对于东北地区农业生产与资源保护与利用具有重要作用。

关 键 词:空间分布模型  气候要素  东北地区

Establishment of Spatial Distribution Models for Agricultural Climate Resources Data in Northeast China
Authors:Wang Zongming  Song Kaishan  Zhang Bai  Liu Dianwei  Li Fang  Xu Jingping
Institution:Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012
Abstract:Supported by GIS, we built databases of geographical factors as longitude, latitude and altitude, in association with databases of topographical factors as slope, aspect and sheltered degree, in Northeast China, based on digital elevation model. Using average values of air temperature, rainfall and relative humid of counties in Northeast China, from 1961 to 2000, we built models for main climatic factors with geographical and topographical factors. In doing this, linear regression analysis was conducted. At the end, the synthetic mathematic models of spatial distribution for climatic elements were obtained in Northeast China. In addition, grid information system of climatic elements with resolution of 1km×1km was established, with help of GIS. These models and grid database will be of importance for agricultural resources protection and use in Northeast China.
Keywords:GIS
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