关键词: 干热河谷, 岩土类型, 植被恢复分区

Abstract:

Soil moisture conditions and vegetation types are greatly influenced by the lithology on hill slopes under the hot and dry valley climate. By combination of climate and lithology types, the Yuanmou hot and dry valley, where there are six lithology types and three climatic types, is divided into five availability zones for artificial forests: available zone, fairly available zone, fairly unavailable zone, unavailable zone and very unavailable zone. The available zone and fairly available zone have an area of 72 975.44.hm², which accounts of 64.85% of the total area of the Yuanmou Hot and Dry Valley.

Key words: Hot and dry valley, Lithology type, Revegetation zoning