云南元江干热河谷萨王纳气候特征与成因
CLIMATE CHARACTERISTICS AND GENESIS OF SAVANNAH IN THE DRY HOT VALLEY OF YUANJIANG,YUNNAN
刘英豪 1解明恩 2秦才江1
作者信息
- 1. 元江县气象局,云南元江 653300
- 2. 云南省气象服务中心,云南 昆明 650034
- 折叠
摘要
元江干热河谷分布有与非洲萨王纳热带稀树草原相似的自然生态系统,是中国河谷型萨王纳的典型代表地区之一.利用元江国家基准气候站及其它气象台站资料,对元江干热河谷萨王纳气候特征及成因进行了多维度分析,结果表明:元江热量富裕、水分欠缺、光照充足,干热河谷气候特征显著,冬暖明显,是中国大陆热量资源最富足的地区之一;元江干热河谷热量条件优于海南岛、西双版纳和金沙江干热河谷地区;元江干热河谷气候变化呈现出弱暖干化趋势;地理、气候、环流的大尺度背景和地形地貌的微尺度环境,共同构成和影响了元江干热河谷的热量来源、积累和水分收支,是元江干热河谷萨王纳气候形成的主要自然原因.
Abstract
The Yuanjiang dry hot valley is a natural ecosystem similar to the savanna tropical savanna in China and Africa,and is one of the typical representative areas of the valley type savanna in China.Based on the data of Yuanjiang National Benchmark Climate Station and other meteorological stations,a multi-dimensional analysis of the climatic characteristics and causes of formation of the savanna climate in the dry hot valley of Yuanjiang is carried out;The thermal conditions in the Yuanjiang dry hot valley are better than those in Hainan Island,Xishuangbanna,and Jinsha River dry hot valley areas;The climate change in the dry and hot valley of the Yuan-jiang shows a weak warming and drying trend;The large-scale background of geography,climate,and circula-tion,as well as the microscale environment of terrain and landforms,together constitute and affect the heat source,accumulation,and water budget of the Yuanjiang dry hot valley,and are the main natural reasons for the formation of the Savannah climate in the Yuanjiang dry hot valley.
关键词
干热河谷/萨王纳/元江/低纬高原Key words
dry hot valley/Savanna/Yuanjiang/low latitude plateau引用本文复制引用
出版年
2023
NETL
NSTL
维普
万方数据