安徽农业科学2011，Vol.39Issue(31)：19313-19315,3.
东北地区近50年地表干湿状况的变化趋势
Variation Trend of Surface Dry and Wet State in Northeast Area of China in Recent 50 Years
吴文杰 1邹积慧 1吴奇 1陈明强 1于广洪1
作者信息
- 1. 辽宁省庄河市气象局,辽宁庄河116400
- 折叠
摘要
Abstract
Based on the 46 observation station' s data of precipitation and temperature over the northeast area of China from 1955 to 2004, the 5-day sliding average method was used to determine boundary date of ≥10℃, and accumulated temperature within boundary date was calculated , moreover, the ratio of accumulated temperature and precipitation in the same period were used to represent dryness. The spatial and temporal distribution and variation tendency of the surface dry and wet status over the northeast China were analyzed. The results showed that the wet conditions in northeast China had obvious spatial and temporal variation characteristics, overall, there were drying trend in northeast China in recent 50 years.关键词
东北地区/干燥度/变化趋势Key words
Northeast area of China/ Dryness/ Variation trend分类
资源环境引用本文复制引用
吴文杰,邹积慧,吴奇,陈明强,于广洪..东北地区近50年地表干湿状况的变化趋势[J].安徽农业科学,2011,39(31):19313-19315,3.
