基于RS与GIS的黔西南地区火龙果种植气候区划研究  

The Climatic Division of Pitaya in Southwest Guizhou Province Based on RS and GIS

作　　者：王旭[1] 谭伟[1] 穆彪[1] 

机构地区：[1]贵州大学林业信息工程研究中心,贵州贵阳550025

出　　处：《山地农业生物学报》2010年第6期514-518,共5页Journal of Mountain Agriculture and Biology

基　　金：贵州省科技计划课题项目[黔科合GY字(2006)3022]

摘　　要：根据火龙果栽培种植的气象指标,利用贵州省黔西南地区各县主要气象站点46年(1960～2006年)的气象统计资料,建立火龙果可种植区域气候区划因子与海拔高度的回归模型。借助贵州省1∶25万基础地理信息数据,综合考虑气候因子、坡度、海拔高度等要素,利用GIS的空间分析功能,确定火龙果的可种植区域。结合RS的图像分类技术,完成黔西南地区土地利用现状图,将不适宜火龙果种植的地块屏蔽,将黔西南地区火龙果种植气候区划分为最适宜区、适宜区和次适宜区3个等级。结果表明:最适宜区种植面积共计5 863.94 hm2,适宜区种植面积共计8 299.41 hm2,次适宜区种植面积共计6 738.38 hm2。According to the meteorological index of the growth of pitaya,a regression model between climate division factors and geographic information for the possible planting area was established using the climate and geographic date of 46 years(1960～2006)in Southwest Guizhou Province in the present work.With the landform date of 1∶250 000,combining climate factors,slope gradient and elevation,the cultivation area of Pitaya was outlined based on GIS technology.Cultivation area of Pitaya in Southwest Guizhou might be divided into three types,such as the most suitable,suitable,and sub-suitable region.The results indicated that the most suitable region included 5 863.94 hm2,the suitable region had 8 299.41 hm2,and the sub-suitable region contained 6 738.38 hm2,which offered scientific foundation for program and development of Pitaya industry in Guizhou.

关 键 词：火龙果 气候区划 GIS RS 

分 类 号：S127[农业科学—农业基础科学]