金沙江干热河谷植被恢复技术

VEGETATION REHABILITATION IN THE ARID_HOT VALLEYS OF JINSHAJANG RIVER

从坡地类型划分、林草种选择及乔灌草人工混交植被类型配置、整地、育苗。

Vegetation rehabilitation is very difficult in the arid_hot valleys of Jingshajang River because of the dry and hot climate. In this paper, effective technical measures of vegetation rehabilitation were put up and expounded. First, selecting suitable plant species for water conservation. In this paper, precipal for selecting plant species was put up and 25 plant species suitable for this area were selected. Secondarily, classing slop types according to soil and rock components on the ground, and determining what plant species should be employed and what technical measures should be taken according the slop type. Thirdly, mainly employ shrubs and grasses, establishing artificial mixed vegetation with trees, shrubs and grasses. Forthly, preparing land by digging level ditch. Fifthly, raising saplings with polybag 40～80 days before transplanting. Sixthly, transplanting saplings during the period of June 20 to July 10 when precipitation reaches 20 mm～30 mm. Seventhly, tending and managing (facilitating) artificial vegetation carefully by closing hillsides to livestock and fuel gathering.