摘要
根据中国内陆陕西、甘肃部分地区５０９ａ旱涝资料和主要测站气象、水文实测数据，应用Ｗｏｒｄ９７图形处理系统，证明在５２６ａ序列中目前处在１１ａ、５０ａ滑动的干旱期。近４６ａ气温上升了０．３℃，年降水减少了８０ｍｍ，径流量减少了０．７８％，出现了明显的干旱化，环境变化趋势不容乐观。
Based on the climate and hydrology da ta of Shaanxi and Gansu Province, in inland part of China, and 509 years histori cal data it has been pr oved that a linear regression drought period of 11 years or 50 years is going now by using the figure treatment system of Word97. There is an increase of 0.3℃ temperature and decrease of 80mm rainfall every year and decrease of 0.78% in runoff volume in last 46 years. There will be a drought trend and ba d future.
出处
《灾害学》
CSCD
1999年第2期28-32,共5页
Journal of Catastrophology
基金
国家重点科技项目
关键词
干旱
趋势
中国内陆
自然环境
environment, drought, trend, inland, China
