摘要
依据中国520个气象站1951-2005年的日平均温度资料，得出各年代的≥10℃、≥0℃积温和持续天数分布的变化，进而分析了气候变暖对中国热量资源分布的影响。结果表明：中国≥10℃、≥0℃积温和持续天数的总体趋势是普遍增加的。尤其，从20世纪80年代开始伴随着全球变暖加剧，积温和持续天数增加比较明显。中国≥10℃、≥0℃积温和持续天数在东部增幅大，西部增幅小；它们的等值线在东部平原地区不断北移，从南方到北方推进速度不断加大，在西部地区由于地形复杂，等值线变化较小，在高山和高原发现有向高海拔地区抬升的趋势。在气候变暖的背景下，中国热量资源分布的变化已对有些地区气候带的划分产生了一定程度的影响。
Based on daily average temperature data from 520 meteorological stations in China from 1951 to 2005, this paper analyzes the variation characteristics of the distribution of China＇ s thermal resources through variation of accumulated temperature （ ≥ 10℃, ≥ 0℃） and lasting days （≥10℃,≥0℃）. The following results are obtained. Accumulated temperature （≥ 10℃, ≥0℃ ） and lasting days （≥10℃, ≥0℃ ） of China are increasing. In particular, with global warming from the 1980 ＇ s to the present, accumulated temperature and lasting days increase distinctly. Accumulated temperature （ ≥10℃, ≥0℃ ） and lasting days （≥10℃, ≥0℃ ） quickly increase in East China, and slowly increase in West China. Contours of them in the eastern plains region continue to move northward, and from the south to the north continue to promote the rate of increase. Contours have smaller change in West China because of complicated changes in topography have a uplifting trend toward the high-altitude area in the plateau and mountain regions. In the context of climate warming, the distribution of China＇ s thermal resources has changed, and this changing range has exerted effects on the divisions of climatic zones in some areas.
出处
《自然资源学报》
CSCD
北大核心
2009年第5期934-944,共11页
Journal of Natural Resources
基金
国家自然科学基金项目(4775019)
江苏省气象灾害重点实验室基金项目(KLME050103)
关键词
气候变暖
热量资源
积温
持续天数
climate warming
thermal resources
accumulated temperature
lasting days
