干旱区生态环境知识资源中心(Arid): 岷江上游干暖河谷与元江干热河谷的气候特征比较研究

Arid

	岷江上游干暖河谷与元江干热河谷的气候特征比较研究
其他题名	COMPARISON OF CLIMATE CHARACTERISTICS BETWEEN A DRY-WARM VALLEY IN UPPER REACHES OF MIN RIVER AND A DRY-HOT VALLEY OF YUANJIANG RIVER
	张一平 1; 段泽新 2; 窦军霞 3
来源期刊	长江流域资源与环境
ISSN	1004-8227
出版年	2005
卷号	14 期号:1 页码:76-82
中文摘要	利用岷江上游和元江(红河上游)河谷区的多年气象观测资料,通过对两河谷区的光、热、水、风等气候因子的综合分析、比较,得出结论:两河谷区的日照时数均较多,日照充足,干热河谷的日照时数要比干暖河谷多.干热河谷的平均温度要比干暖河谷要高.两河谷均是气温的年较差较小,月较差较大;降水的地区差异大,有明显的干雨季之分,降水均集中在雨季,降水量干热河谷多于干暖河谷;两河谷均是山谷风大,定时风显著,风速均是干季大,雨季小.两河谷局地小气候均呈现复杂多样特征.在干热河谷中上段,光热资源较丰富,而水分资源不协调,导致水分构成了该地区发展的主要限制因子;而在于暖河谷中上段,光照可满足需要,热量和水分不足,构成了限制因子,特别在中段河谷的部分地区缺水更甚,干旱年份可影响到树木生长.对两河谷气候特征的对比、分析,可为两流域在退耕还林、山地生态环境的治理和恢复提供科学依据.
英文摘要	By using long-term climate data for dry-hot valley at the upper reaches of the Min River and drywarm valley of the Yuanjiang River(the upper reaches of the Hong River), microclimate characteristics of these two valleys were analyzed and compared. In these two regions, sunshine duration was long! Annual air temperature differences were small, but monthly air temperature differences were high. Precipitation differences were greater among sites within dry-warm and dry-hot valleys, with obvious alternations in dry and rain seasons. Precipitation was concentrated in rain seasons. In addition, mountain-valley breeze speeds were all high, with bigger values in dry season and smaller values in rain season. However, compared to dry-warm valley, higher values were observed in the sunshine duration, average air temperature and precipitation for dry-hot valley. Microclimate characteristics of the. two valleys were complexed and diversified. At the upside and middle part of dry-hot’ valley, ample light and heat resource were out of harmony with insufficient water resource, which made water a primary factor to limit development, While at the upside and middle part of dry-warm valley, light resource was plenty, but heat and water resource were not enough and became limiting factors. Especially at some places of middle part of dry-warm valley, there was even the lack of water to influence plant growth in arid years.
中文关键词	干暖河谷 ; 干热河谷 ; 小气候特征 ; 生态恢复 ; 岷江上游 ; 元江
英文关键词	dry-warm valley dry-hot valley microclimate characteristics ecological restoration the upper reaches of the Min River the Yuanjiang River
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MULTIDISCIPLINARY SCIENCES
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:1875541
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206860
作者单位	1.中国科学院西双版纳热带植物园, 昆明, 云南 650223, 中国; 2.云南大学资源环境与地球科学学院, 昆明, 云南 650091, 中国; 3.中国科学院生态环境研究中心, 北京 100085, 中国
推荐引用方式 GB/T 7714	张一平,段泽新,窦军霞. 岷江上游干暖河谷与元江干热河谷的气候特征比较研究[J],2005,14(1):76-82.
APA	张一平,段泽新,&窦军霞.(2005).岷江上游干暖河谷与元江干热河谷的气候特征比较研究.长江流域资源与环境,14(1),76-82.
MLA	张一平,et al."岷江上游干暖河谷与元江干热河谷的气候特征比较研究".长江流域资源与环境 14.1(2005):76-82.