现代农业科技Issue(20):236-239,4.
江苏省降雨时空分布特征研究
Study on Characteristics for Spatial and Temporal Distribution in Jiangsu Province
摘要
Abstract
According to the Tyson polygon to establish distribution position from 13 weather observation stations in Jiangsu Province and using ordinary Kriging interpolation method and the establishment of the Gini coefficient to study rainfall,Gini coefficient and Lorenz asymmetry coefficient series for the Nanjing City and Jiangsu Province. The results showed that in the past 50 years,Jiangsu Province annual rainfall showed obvious gradient change in space,that it has been gradually reducing from the southeast coast to the northwest inland;meanwhile,the annual rainfall in Jiangsu Province tends to increase,rainfall years time distribution is more uniform,month rainfall was accounting for the proportion of the increase of annual rainfall. During the rainy season,rainfall concentrated,Southeast big rainstorm frequency would increase the possibility of soil erosion;non during the rainy season,rainfall was less,northwest easily leads to soil drought,extremely unfavorable for the growth of vegetation and ecological restoration.关键词
降雨/分布模型/时空分布/江苏省Key words
rainfall/distribution model/spatial and temporal distribution/Jiangsu Province分类
天文与地球科学引用本文复制引用
徐晨光,冯新峰,郑志伟,申子通..江苏省降雨时空分布特征研究[J].现代农业科技,2014,(20):236-239,4.基金项目
加拿大国际发展研究中心资助项目(107093-001)。 ()