| 云南高原干旱河谷的地形—气候耦合作用机制与环境效应分析 |
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| 引用本文： | 何永彬,;浦同省.云南高原干旱河谷的地形—气候耦合作用机制与环境效应分析[J].云南地理环境研究,2014(6):34-41. |
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| 作者姓名： | 何永彬 ;浦同省 |
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| 作者单位： | [1]云南大学资源环境与地球科学学院云南省地理研究所,云南昆明650223; [2]国家林业局南方航空护林总站丽江站,云南丽江674100 |
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| 基金项目： | 云南省应用基础研究重点项目（2009CC003）资助 |
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| 摘 要： | 干旱河谷地带的水热状况和气候特征等与山地地形、河谷深切为主的地貌格局有密切关系。干旱河谷的形成,是在独特自然区位和复合性低纬大气环流系统的环境条件下,受梯度地形、山谷相间和地形环境等地表因素共同影响下的结果。新生代时期以来的造山运动与河谷地貌演变是局部地带＂荒漠化＂气候环境形成的重要因素,并引发其它相关生态因子和整体生态系统产生变化,在低凹盆谷和河流峡谷出现了脆弱易退化、环境特异性、环境要素亏缺为特征的特殊生态系统。
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| 关 键 词： | 地形—气候耦合作用 环境效应 干旱河谷 云南高原 |
ANALYSIS ON MECHANISM OF TOPOGRAPHY-CLIMATE COUPLING FUNCTION AND ENVIRONMENTAL EFFECT IN THE DRY-HOT VALLEY OF YUNNAN PLATEAU |
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| Institution: | HE Yong - bin , PU Tong - sheng (1.Bureau of Resource Environment and Earth Science, Yunnan Institution of Geography, Yunnan University, Kunming 650223, Yunnan, China; 2. Southern China Aerial Forest Fire Protection Terminus of State Forestry Administration, Lijiang 674100, Yunnan, China) |
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| Abstract: | Hydrothermal regime and climatically condition in hot- dry valley closely related to the topography distribution which mainly consisted of mountainous land and deep incised valley. The formation of hot- dry valley was the result of terrace topography,ridge and valley,and enclose valley environment in the background of particular natural location and composted low- latitude atmospheric circulation systems. Slanting shell uplift and ruptured mass trap and subside,and the valley incise and erosion from later Tertiary or early Quaternary brought the result of desertification featured by local drought, and also droved the ecological degradation process and increased the other ecological elements to change. And thus formed the ecological system in the dry- hot valley with the plants of fragile and retrogressed,unusual enduring characteristics and the wane environment. |
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| Keywords: | topography-climate coupling function environmental effect dry-hot valley Yunnan plateau |
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