广东省龙眼种植农业气候区划研究  

AGRICULTURAL CLIMATIC REGIONALIZATION FOR LONGAN CULTIVATION IN GUANGDONG PROVINCE

作　　者：薛丽芳[1,2] 王春昌 王春林[2] 申双和[1] 

机构地区：[1]南京信息工程大学应用气象学院,江苏南京210044 [2]广东省气候中心,广东广州510080 [3]鹤山市气象局,广东鹤山529700

出　　处：《热带气象学报》2011年第3期403-409,共7页Journal of Tropical Meteorology

基　　金：“十一五”国家科技支撑计划项目“农业重大气象灾害监测预警与调控技术研究”;课题“华南寒害监测预警技术研究”共同资助

摘　　要：在全球气候变暖的气候背景下,利用地理信息系统技术和计算机技术进行龙眼效益的农业区划,为广东省的龙眼种植进行规划和服务。根据广东省1971—2000年气候资料,结合龙眼生长的气候条件,选取年平均气温、极端最低气温、4月中旬—5月上旬的日照时数,以及日平均气温≥10℃的年积温作为区划因子,并进行等权相加得到总的区划因子指标。根据区划因子与地理要素间的相关系数,采用梯度距离反比法推算得到分辨率1 km×1 km的气象要素栅格图,并利用GIS的空间分析功能得到定量化和精细化的广东省龙眼种植区划图。其中最适宜区占全省面积的25.6%,适宜区占全省面积的26.3%,次适宜区占全省面积的27.1%。研究结果可为农业种植规划部门及政府部门提供参考依据。In the context of global warming,the use of GIS and computer technology in agricultural climatic regionalization for longan cultivation can benefit and serve the longan planning.According to the climate data from 1971 to 2000 of Guangdong Province and the climatic conditions of longan growth,the authors analyzed and identified indexes for climatic division,which contain annual average temperature,extreme minimum temperature,sunshine hours from mid-April to early May and the accumulated temperature which is greater than or equal to 10 C during a period of 30 years.Then an overall index of climatic division was obtained on the basis of the equal-weight principle.On the basis of the correlation coefficient among the four division factors and geographical factors,the gradient inverse distance method was used to get raster distribution maps for each meteorological element with a grid resolution of 1 km2.By the function of spatial analysis of GIS,longan cultivation zoning maps of Guangdong Province were completed.The most suitable region accounts for 25.6%,the suitable region accounts for 26.3% and the sub-suitable region accounts for 27.1%.Finally,the zoning maps can be used by departments of agriculture planting and planning and the government in choosing zones of crop growth.

关 键 词：应用气象学 农业气候区划 GIS 龙眼 

分 类 号：P49[天文地球—大气科学及气象学]