基于DEM的山西省农业气候资源集的建立

Agricultural Climatic Resources Atlas Construction of Shanxi Based on DEM

为了全面了解山西省的农业气候资源现状,利用1961—2010年山西省气象观测资料和站点的地理信息资料,通过采用小网格推算加残差订正的方法,基于DEM建立了山西省农业气候资源集,并以4个气候资源要素为例进行了分析。结果表明:年平均温度、≥0℃的积温、年日照时数和年降水量的多元线性回归复相关系数分别达到了0.9811、0.9855、0.8725和0.8917,再经过残差订正得到的农业气候资源集结果详尽且符合实际,能够详细描述山西省不同地形条件下气候资源的空间分布特征。此结果可以为农业的合理布局和规划提供科学的方法和决策的依据。

In order to understand the status of agricultural climate resources in Shanxi Province, the author utilized climate observe data during the period of 1961 to 2010 and topographic factors through the method of small gird simulation and residual correction establish the agricultural climatic resources atlas of Shanxi, analyze four elements figr example. The results showed that, annual temperature,≥0℃ cumulative temperature, annual sunshine hours and rainfall＇ s multiple correlation coefficient of multiple linear regression respectively reached 0.9811, 0.9855, 0.8725 and 0.8917, and continued residual correction obtain the agricultural climatic resources atlas which detailed and actual, can elaborate spatial distribution characteristics of the different terrain conditions agricultural climatic resources in Shanxi province. The results can provide the scientific methods and basis for decision making for the reasonable layout and planning of agriculture.