Land use effects on soil properties in a hilly area, northern China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Land use effects on soil properties in a hilly area, northern China
	Guo, XD; Fu, BJ; Chen, LD; Ma, KM; Li, JR
刊名	EKOLOGIA-BRATISLAVA
	2004
卷号	23 期号:1 页码:1-13
关键词	land use soil nutrients bulk density hilly area northern China
英文摘要	The rational use of land in the hilly areas of China has become an urgent task for the Chinese government. This study was undertaken to evaluate the effects of different land uses on soil bulk density and soil nutrients in the hilly areas of Zunhua, northern China. Samples were collected from the surface soil (0-20 cm) of pine forest, grassland, chestnut forest, and farmland that had been cultivated for 6 months and for over 3 years, respectively. The results indicated that deforestation and cultivation increased soil bulk density and decreased most soil nutrients. Compared to pine forest, the bulk density value of grassland, 6 months cultivated land, chestnut forest and 3 years cultivated land increased by 13.3%, 14.2%, 27.5%, and 39.7%, respectively. Soil nutrients except available N and P showed significant differences among different land uses. Compared to pine forest, soil nutrient contents except total P in chestnut forest and 3 years cultivated soils decreased significantly. Chestnut forest decreased soil organic matter (SOM) by 60.7%, total N by 35.6%, total K by 21.3%, and available K by 57%; while 3 years cultivated soils decreased SOM by 62.9%, total N by 52.6%, total K by 31%, and available K by 60%. The deterioration indices showed that a severe degradation occurred to 3 years cultivated land and to chestnut forest. Cultivation on steeper slopes (>20degrees) should be prohibited. Because the soils in chestnut forest did not deteriorate as severely as slope farmland, and because chestnut forest can produce more economic benefits, it can be selected to be a rational land use in the hilly area of Zunhua County. However, soils under chestnut forest will severely deteriorate unless appropriate soil and water conservation practices are used.
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:000221450300001
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/23396]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Guo, XD,Fu, BJ,Chen, LD,et al. Land use effects on soil properties in a hilly area, northern China[J]. EKOLOGIA-BRATISLAVA,2004,23(1):1-13.
APA	Guo, XD,Fu, BJ,Chen, LD,Ma, KM,&Li, JR.(2004).Land use effects on soil properties in a hilly area, northern China.EKOLOGIA-BRATISLAVA,23(1),1-13.
MLA	Guo, XD,et al."Land use effects on soil properties in a hilly area, northern China".EKOLOGIA-BRATISLAVA 23.1(2004):1-13.