关键词：
程海流域;金沙江干热河谷;造林;树种选择
摘 要：
程海流域地处金沙江干热河谷区,天然植被稀少,生态环境脆弱,造林难度较大,树种选择适当与否是造林成败的关键因子。文中阐述了程海流域现有的植被分布情况和主要造林树种,对程海流域造林存在的自然环境恶劣、自然灾害严重、生态系统退化等问题,提出适地适树、生物多样性丰富和效益最大化等造林树种选择的原则,并对该区域立地条件进行评价。在此基础上,从不同抗逆性特征、不同坡度、不同海拔以及不同坡位等方面,总结出适合程海流域造林的备选树种和干热河谷区造林及树种选择的要点,以期为金沙江流域干热河谷区造林树种选择提供参考。
译 名：
Selection of Afforestation Tree Species in Dry and Hot Valley Area of Chenghai River Basin in Northwest Yunnan
作 者：
ZHAO Jinlong;XU Yingxue;Kunming Survey & Design Institute of State Forestry and Grassland Administration;National Forestry and Grassland Administration;
关键词：
Chenghai River Basin;;dry-hot valley area of the Jinsha River;;afforestation;;tree species selection
摘 要：
The Chenghai River Basin is located in the dry-hot valley area of the Jinsha River,with scarce natural vegetation,fragile ecological environment,and difficult afforestation. The key factor of afforestation success is the proper selection of tree species. This paper described the vegetation distribution and main afforestation species in Chenghai River Basin,analyzed the problems of bad natural environment,serious natural disasters,ecosystem degradation,etc,put forward the principles of tree species selection,such as suitable site and species,rich biodiversity and maximum benefit,and evaluated the site conditions of the region. The selection of tree species and the key points of afforestation in dry-hot valley area was discussed from the aspects of different stress resistance characteristics,different slopes,different altitudes and different slope positions,in order to provide reference for afforestation tree species selection in the dry-hot valley area of the Jinsha River.
