农耕驱动西南喀斯特地区坡地石质化的机制

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	农耕驱动西南喀斯特地区坡地石质化的机制
	张信宝
刊名	地球与环境
	2010
卷号	38 期号:2 页码:123-128
关键词	农耕喀斯特坡地石质化
其他题名	Mechanisms for Cultivation-driving Land Rocky Desertification on Carbonate Rock Slopes in the Karst Region of Southwest China
通讯作者	张信宝
合作状况	国内
中文摘要	论文介绍了西南喀斯特地区坡地岩土组构与产流产沙的特点,系统阐明了农耕促进土壤地表、地下流失和生物流失,间接驱动坡地石质化的机制,和犁耕运移土壤,直接驱动坡地石质化的机制。分析了石质坡地和土质坡地的农耕驱动土地石质化的主要方式,并给出了相应的防治对策。坡腰土石质土地是西南喀斯特丘陵坡地加速石质化发生的主要地段,要痛下决心,彻底改变坡腰土石质土地的农业利用方式,尽可能退耕还林、还灌、还草,尽量避免犁耕运移土壤和扰动土壤。
英文摘要	Compositional and textural characteristics of soils and underneath weathering rocks as well as those of runoff and sediment productions on carbonate rock slopes in the karst region of Southwest China are introduced.Mechanisms for cultivation-promoting ground and underground soil losses and biological soil losses to drive land rocky desertification indirectly as well as for tillage moving soil down slope to drive land rocky desertification directly are illustrated.Major land rocky desertification patterns on both rock and soil slopes are analyzed and relevant mitigation measures are recommended.It is pointed out that accelerated land rocky desertification occurs mostly on the soil-rock land of the middle hill slopes in the karst region of Southwest China and it is strongly recommended that current cultivation land use system should be changed and the cultivated land should be turned back to forests,shrubs and grasses pastures to avoid tillage moving or disturbing soil."Of two interests one should choose the more,while of two evils one should choose the less." Grazing by fences is preferred over maize planting.
学科主题	水土保持学
分类号	S157
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:3910974
公开日期	2012-03-31
内容类型	期刊论文
源URL	[http://192.168.143.20:8080/handle/131551/3874]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
推荐引用方式 GB/T 7714	张信宝. 农耕驱动西南喀斯特地区坡地石质化的机制[J]. 地球与环境,2010,38(2):123-128.
APA	张信宝.(2010).农耕驱动西南喀斯特地区坡地石质化的机制.地球与环境,38(2),123-128.
MLA	张信宝."农耕驱动西南喀斯特地区坡地石质化的机制".地球与环境 38.2(2010):123-128.