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渡口干热河谷,气候炎热干燥,水热严重失调.六十年代和七十年代,曾大面积进行云南松飞播造林.渡口干热河谷自然概况:渡口干热河谷云南松飞播造林范围地理位置,约处东经101°28′～102°14′,北纬26°14′～27°05′之间.在地貌区划上,属横断山峡谷川西南康滇台背斜区,地形崎岖复杂,岭谷相间,山高谷深.最高海拨为1900米,最低960米,一般处于1000～1600米.坡度多为25～30度.
Dry and hot valley ferry, the hot and dry climate, severe hydrothermal imbalance in the sixties and seventies, had large area of Yunnan pine aerial sowing .Forest natural landscape of dry and hot valley: the dry-hot valley of Yunnan Ferry pine aerial sowing range geographic location, About the east longitude 101 ° 28 ’~ 102 ° 14’, latitude 26 ° 14 ’~ 27 ° 05’ between the topography in the area, is a Hengduan Mountains Canyon Southwest Kang Dian Taiwan anticline area, rugged terrain complex, , The highest mountain valley depth of 1900 meters, the lowest 960 meters, generally at 1000 ~ 1600 meters. The slope of mostly 25 to 30 degrees.