参考作物腾发蒸腾量等值线图的绘制

Drawing of Reference Crop Evaportranspiration ET_0 Isoline Map

根据鄂尔多斯市及其周边地区 2 4个站点 30年气象资料 ,在对已有的水文、气象站网 (均为非规则分布 )进行正则化基础上 ,对ET0 空间结构性进行了系统分析。充分利用ET0 区域信息的特征 ,采用Kriging无偏最优估计方法对区域信息进行最优估计 ,并据此绘制了参考作物ET0 最优等值线图。用以了解鄂尔多斯市的作物需水量的分布规律 ,为发展牧草提供科学的依据 。

Based on regularization of hydrographic and metrological station net (all irregular station net)and the 30 years meteorological data of 24 stations in Erdos and circum zone,ET_0 spatial structure was analyzed. The region information was estimated optimally with Kriging unbiased optimum estimating way,and the optimum constant value line for reference crop ET_0 drawn. The drawing provided the distribution rule of crop water requirement in Erdos and scientific basis for developing pasture and increasing livestock production.