拖拉机集材对迹地土壤条件及苗木生长影响的研究(Ⅰ)——拖拉机集材对迹地土壤条件的影响  

Study on Effects of Tractors to Soil Condtions and Seedling Growth on Logged Roads (Ⅰ) Effects of Tractors to Logged Roads Soil

作　　者：赵秀海[1] 王德来[2] 史济彦[2] 

机构地区：[1]吉林林学院采运系 [2]东北林业大学采运系

出　　处：《吉林林学院学报》1993年第1期15-21,共7页

摘　　要：目前东北林区森林采运70%是采用拖拉机半拖集材,主要有J—50(履带式)和J—80(轮式)两种机型,集材道上土壤不仅受拖拉机反复走行的作用,而且还有拖曳木材捆的影响,产生地表轧乱和土壤压实现象,造成水土流失和腐殖质丧失。本文通过实地调查测定,应用计算,研究了集材道土壤硬度和孔隙度,并得出结论:对于集材道上的土壤硬度和孔隙度,履带式的都比轮式的大。Tractors high-ball Logging is used now in Northeasten forest area. The tractors mainly consist of J—50 (crawler) and J—80 (wheeled). The soil of skidding trails was condensed by tractors and timber ties,leading to soil erosion. It affects badly the seedling growth. This paper studies also the soil compaction and soil porosity with compacter, The soil compaction and soil porosity of crawler tractor trail is greater than that of the wheeled tractor trail.

关 键 词：拖拉机集材 土壤硬度 土壤孔隙度 苗木生长 

分 类 号：S782.25[农业科学—木材科学与技术]