拖拉机集材对林地土壤的影响  

Effects of skidding on forest soils

作　　者：李晓磊[1] 

机构地区：[1]东北林业大学

出　　处：《森林工程》1999年第4期12-13,共2页Forest Engineering

摘　　要：本文从环境保护的观点出发.分析了拖拉机集材造成的林地土壤压实、水土流失。并对集材前后迹地土壤营养成份流换情况进行对比。结果表明,拖拉机集材对森林生态环境破坏较为严重。不符合生态效益对林业生产的要求。The authors analyzed the effects of tractor skidding on forest soils by the soil compressed, soil erosion and soil nutrient compositions lost. The results indecates that tractor skidding destroyed the forest ecological environment more serious and must be improved to adapt to the requests of ecological efficiencies to forestry production.

关 键 词：拖拉机 集材 土壤 压实 水土流失 森林生态环境 

分 类 号：S714[农业科学—林学] S782.25