基于GIS的河套灌区春小麦适生种植区划  

Suitable Planting Regionalization of Spring Wheat Based on GIS in Hetao Irrigation Area

作　　者：杨松[1] 刘俊林[1] 杨卫[1] 淡建兵 廖书苹 胡新波 

机构地区：[1]内蒙古巴彦淖尔市气象局,内蒙古临河015000 [2]内蒙古巴彦淖尔市农业气象试验站,内蒙古临河015000 [3]内蒙古巴彦淖尔市乌拉特后旗气象局,内蒙古巴音015500

出　　处：《安徽农业科学》2009年第35期17496-17498,共3页Journal of Anhui Agricultural Sciences

摘　　要：[目的]通过GIS划分河套灌区小麦不同适宜种植区域。[方法]利用河套灌区2个观测站22年小麦观测资料和相应气象资料,计算了小麦各发育期气温、日照等要素,分析了各发育期适宜和不利条件,并利用气候资料与气象产量建立了回归模型,通过地理信息系统将河套灌区小麦种植进行了适宜分区。[结果]选用小麦气象产量与5个因子(5月下旬平均气温、6月中旬平均最低气温、5月中旬平均最高气温、6月中旬日照时数、6月下旬降水量)推算模型为:Y=-15.045+5.511X1+11.711X2-0.49X3+1.249X4-0.663X5,据此建立的该模型细网格推算模型为:Y=20 440.962-206.466X纬-86.429X经-1.082X拔,将上式代入GIS,可将该市小麦种植区依次分为沙区、最适宜种植区、适宜种植区、基本适宜种植区和不适宜种植区5个种植类型区。[结论]该研究为促进河套灌区农业结构调整提供了科学依据。[ Objective ] The study aimed to divide different suitable planting regions for spring wheat in Hetao irrigation area by GIS. [ Method ] Temperature, sunshine etc. main factors in each development period of wheat were calculated and the favorable and unfavorable conditions in each development period were analyzed by using wheat observation data and corresponding meteorological data for 22 years in two observation stations in Hetao irrigation area. The regression model was established by using the climate data and meteorological yield, and the wheat planting regionalization in Hetao irrigation area was divided aptly by GIS. [ Result] The model calculated by wheat meteorological yield and the following five factors （mean temperature in late May, mean minimum temperature in mid June, mean maximum temperature in mid May, sunshine hours in mid June, precipitation in late June）, was Y= - 15. 045 ＋5. 511X1 ＋ 11. 711X2 -0.49X3 ＋ 1. 249X4 -0. 663X5 and the fine-mesh reckoning model established by the above model, was Y = 20 440. 962 - 206. 466Xlatitude -- 86. 429Xlongitude -- 1. 082Xelevation. When the formula was substituted into GIS, the wheat planting of this city could be divided into 5 planting type areas as sandy area, the most suitable planting area, suitable planting area, basic suitable planting area and unfavorable planting area. [ Conclusion ] The research provided scientific basis for promoting the agricultural structure adjustment of Hetao irrigation area.

关 键 词：小麦 农业气候条件 区划 

分 类 号：S127[农业科学—农业基础科学]