基于GIS的秦岭山系气候适宜性评价  

Evaluation of climate suitability in Qinling mountains based on GIS

作　　者：齐增湘[1,2] 熊兴耀[1] 徐卫华 甘德欣[1] 

机构地区：[1]湖南农业大学园艺园林学院,湖南长沙410128 [2]城市与区域生态国家重点实验室,北京100085

出　　处：《湖南农业大学学报（自然科学版）》2011年第3期321-324,共4页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：国家自然科学基金项目(40901289);国家"973"项目(2009CB421104)

摘　　要：基于温湿指数和风效指数模型,利用地理信息系统(GIS)技术分析秦岭山系温湿指数和风效指数的时空分布规律及逐月气候的适宜性,评价秦岭山系的气候适宜期。结果表明:秦岭山系月均温湿指数(THI)的空间分布呈由中部向南北两向、自西向东递增趋势,月均风效指数(K)总体趋势与温湿指数的一致;秦岭山系气候适宜期差异显著,整体分布趋势由南、北向中部,由东向西逐渐变短;全年气候适宜期最长为7个月,面积11242.31km2,占全区总面积的19.50%;全年气候不适宜区主要分布在太白山山地等高寒地区,面积仅有86km2,不足全区面积的0.2%;随着海拔高度的升高,气候适宜期逐渐缩短。建议将秦岭山系的旅游活动集中安排在4—10月,景观规划和建设重点应集中在海拔2395m以下的重要景区景点内。The spatial and temporal distribution of temperature humidity index （THI） and wind chill index （K） as well as monthly climate suitability were analyzed and the climate suitability period were evaluated based on geographic information system technology and climate suitability analysis models such as THI and K. Results showed： The monthly THI of Qinling increased gradually from central to north and south and from west to east; the monthly K trend of Qinling was consistent with THI; there was significant differences in climate suitability period of Qinling. In general, the annual suitable climate period became shorter gradually from south and north to central and from east to west; the longest climate suitability period is seven months, covering an area of 11 242.31 km^2 or 19.50% of the total area; annual unsuitable climate area was located in Taibaishan hilly regions, which occupied 86 km^2, less than 0.2% of the region＇s total area and the climate suitability period decreased with the increasing altitude. It was suggested tourism should be arranged between April and October and landscape planning and construction should be carried out at the tourism scenic spots below the elevation of 2 395 m.

关 键 词：温湿指数 风效指数 地理信息系统 气候适宜性 秦岭山系 

分 类 号：S162.3[农业科学—农业气象学]