摘要
马尾松林下水土流失已经成为南方红壤丘陵区水土流失治理一个亟待解决的问题。在分析南方红壤丘陵区马尾松林下水土流失现状及特点的基础上,从马尾松林下植被状况、人为干扰、地形、降雨侵蚀力、土壤性状等方面综合探讨了马尾松林下水土流失的成因。认为:林下植被匮乏是造成马尾松林下水土流失最主要和最直接的原因;掠夺性人为干扰是造成马尾松林下水土流失的根本原因;破碎的地形、较高的降雨侵蚀力和土壤可蚀性则为林下水土流失的发生提供了有利条件。同时总结了诸如微地形改造、林下补植、封禁保护等马尾松林下水土流失治理的成功经验,以期为今后马尾松林下水土流失治理提供参考。
Soil and water loss in Pinus massoniana woodland has become an urgent problem that needs to be solved to control soil and water loss in hilly red soil regions of southern China.Based on the analysis of status and distribution features of soil and water loss in Pinus massonian woodland,the main factors resulted in the soil and water loss are discussed,such as status of understory vegetation,human disturbance,topography,rainfall erosion force and soil properties.It indicates that lack of understory vegetation is the most primary and direct reason for the erosion in Pinus massoniana woodland;while predatory human disturbances is considered to be the basic reason,and the broken terrain,high rainfall erosion force and soil erodibility supply favorable conditions for the occurrence of soil and water loss understory.It also summarizes the successful experiences of treatment of soil and water loss in Pinus massoniana woodland,such as micro-slope reconstruction,replanting understory and enclosure-conservation,aiming at providing reference for controlling soil and water loss under the Pinus massoniana forest in future.
出处
《中国水土保持科学》
CSCD
2011年第6期65-70,共6页
Science of Soil and Water Conservation
基金
“十一五”国家科技支撑计划课题“闽西中高丘陵区红壤侵蚀快速治理与生态农业技术集成和示范”(2009BADC6B06)
福建省科技厅重点项目“南方红壤区水土流失地生物固碳技术研究”(2009Y0014)
关键词
马尾松
水土流失
林下植被
南方红壤丘陵区
Pinus massoniana
soil and water loss
understory vegetation
hilly red soil region of southern China
