参地水土流失与防治措施

吉林省南部山区是我国人参的主要产区,现有已参地和近三年参后地近20万亩。人参种植业在整地、栽培和参后地的三个阶段中都产生水土流失,尤以作业道上最明显、最严重。预防措施是,栽培前控制地类、坡度和坡长;栽培期间采取挖水平截水沟、蓄水池等工程措施与植物措施相结合的办法;参后地要及时还林种草。

Soil Loss and Controt Measure on Asiatic Laburnum Land

At present, there are 200000 mu of land on which asiatic laburnum is planted or was ever planted three years ago in mountainous areas in southern Jilin Province which is the main growing area of asiatic laburnum. Soil loss is produced in three stages of the process of planting asiatic laburnum as soil preparation stage, cultivation stage and period after plantation.Soil loss is most serious and obvious along the walk way .Prevention mea-sures for soil loss are as follows: restraining types of land, gradient and length of slope before cultivation;digging horizontal cut-off ditch and pond incorporating with vegetative measures during the beriod of cultivation; restoring forest and grass after cultivation of asiatic laburnum.