摘要
本文从区划角度出发,以降水距平作为连云港市农业干旱区划的主要指标,用反距离加权的内插方法,将气象要素推算至整个地域空间。此外,基于GIS平台,将气象要素与相应的地理因子和社会经济因子进行相关分析,从而对干旱区划指标进行修正。结果表明:灌南县的大部分地区、灌云县南部及赣榆县外围地区干旱影响程度较高,东海县西部和市区中部次之,灌云县北部及东海县东部较低。
In this paper, starting from the perspective of division, taking precipitation anomaly as the main evaluation index of ag- ricultural drought division in Lianyungang, it calculated the spatial distribution of meteorological factors to the whole region by the inter- polation method of IDW. In addition, based on GIS platform, it took correlation analysis on meteorological factors, geography factors and social economic factors to amend drought division index. The results showed that the heavy drought took place in the majority of Guannan County, south of Guanyun County and the outlying areas of Ganyu County. The middle drought occurred in the west of Donghai County and the central region in the urban. The light drought happened in the north of Guanyun County and east of Donghai County.
出处
《测绘科学》
CSCD
北大核心
2013年第5期40-42,共3页
Science of Surveying and Mapping
基金
江苏省博士后科研基金(1101024B)
南京信息工程大学科研基金(S8108232001)
关键词
农业干旱
GIS
气象
灾害区划
agricultural drought
GIS
meteorology
hazard division
