马尾松阔叶树混交林涵水固土功能研究

Study on the Function of Water and Soil Conservation for Masson Pine & Broadleaf-tree Mixed Forest

研究者在湖南、湖北、四川、重庆 4省 (市 )调查收集了 8种马尾松阔叶树混交林林分类型的科研标准地 95块 ,并在典型标准地内设置了 10个简易径流场 ,进行了为期 3～ 8a的定位观测 ;在研究探讨了马尾松阔叶树混交林林分结构规律的基础上 ,进一步就其涵养水源、固持土壤功能进行了研究 ,以期为长江中上游防护林体系建设。

This paper is a part of the study on the management patterns and tables of Pinus and Cypress water and soil conservation forest in the middle-upper reaches of the Changjiang River valley ,which is the Eighth-Five-Year-Plan national key task,and the study on the remoulding technology on the low-quality and low-benefit secondary forest,which is the Ninth-Five-Year-Plan national key task.The researchers investigated and collected 95 pieces of stand plots which included 8 stand types of Masson Pine & Broadleaf-tree mixed forest. Ten simple runoff fields were set up, and the fixed position survery lasted 8 years. Based on the study of the forest structure laws of the Masson Pine & Broadleaf tree mixed forest ,this essay did the further study on the function of water and soil conservation of this kind of forest so as to provide the reference for the construction of the shelter forest system and the scientific management of Masson Pine & Broadleaf-tree mixed forest.