青藏高原东部暗针叶林采伐迹地土壤环境变化  

Changes of Soil Properties of Dark Coniferous Clear-cutting Forestland in Eastern Tibetan Plateau

作　　者：庞学勇[1] 包维楷[1] 张咏梅[1] 

机构地区：[1]中国科学院成都生物研究所,成都610041

出　　处：《世界科技研究与发展》2005年第1期62-67,共6页World Sci-Tech R&D

基　　金：中国科学院知识创新工程项目 (KZCX3 SW 3 3 9;KSCX1 0 7 0 2 ) ;国家"十五"重大科技攻关项目 (2 0 0 1BA60 6A 0 5 );西部之光项目;茂县生态站共同资助

摘　　要：本文综述目前暗针叶林采伐迹地土壤物理、化学、生物学性质及水土流失情况的研究现状 ,指出其存在 :(1)重点轻面 ,对生态恢复过程研究不多 ;(2 )重植被调查 ,而对土壤环境变化研究较少 ;(3)对迹地生态环境变化机理研究不多等问题 ,提出迹地生态环境变化研究与生态恢复过程相结合 ,应展开对采伐迹地影响最大的生态环境因子的地下 0 .4m和地上 1.5m的立体空间层次的综合长期定位研究。Through the overview, we have known the condition of microclimate, vegetation, hydrology and soil environmental factors in dark coniferous forest cutting-blank, and indicated the existing questions, including: (1)only emphasizing the spot, however neglecting the study about the course of ecological restoration; (2)emphasizing the vegetation investigation, but neglecting the research of soil environmental changes; (3)and seldom study the mechanism of cutting-blank ecological environmental changes. The combination of changes of cutting-blank ecological rnvironment and course of ecological restoration are put forward. In future research, we should study the environmental factors that are long located in the layers from 40cm downground to 150cm aboveground and significantly affect the environmental changes in cutting-blank.

关 键 词：采伐迹地 土壤环境变化 暗针叶林 长期定位 水土流失 青藏高原东部 地上 调查 生物学性质 机理研究 

分 类 号：S714[农业科学—林学]