摘要
该文论述了金衢地区水土流失现状,分析了丘陵山地土壤退化的主要原因是水土流失。指出:由于森林采伐量超过生长量,森林植被屡遭破坏,森林的生态功能未能发挥,导致水土流失加剧。水土流失面积占全区丘陵山地面积的1/3以上,侵蚀模数超过2 500t/(km^2·a)。为了防治水土流失和土壤退化,建立红壤丘陵山地良好的生态环境,应实行生物措施和工程措施相结合,坚持边治理边开发和开发与治理相结合的原则。
Current situation of soil and water loss and producing reasons of soil degradation in Jinqu region were described inthe paper. The soil degradation was caused by soil and water loss and more severe soil and water loss resulted by forestcutting over its growth rate. The overcutting lost the ecofuction of the forest. The arear of soil and water loss was overone-third of total arears of hill and mound land,and medulus of erosion was over 2500t/km^2. a. In order to preventsoil and water loss and soil degeneration and to establish a better ecosystem in the red soil hilly region,both combina-tion of bilolgical and engineering measures and princeple of combination of controling the loss and developing the landresources should be take into accout at the same time.
出处
《水土保持通报》
CSCD
北大核心
1993年第3期29-32,42,共5页
Bulletin of Soil and Water Conservation
关键词
土壤侵蚀
防治
hill and mound land
red soil
soil and water loss soil degradation
copmrephensive measures
