Soil properties related to land-use systems in oases of Sangong river watershed, Xinjiang

CORC > 新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所(2010年以前数据)

	Soil properties related to land-use systems in oases of Sangong river watershed, Xinjiang
	Luo Geping ; Chen Xi ; Xu Wenqiang
刊名	JOURNAL OF GEOGRAPHICAL SCIENCES
	2008
卷号	18 期号:4 页码:483-498
关键词	ORGANIC-MATTER CARBON CULTIVATION GRASSLAND SAVANNA TILLAGE CHINA
ISSN号	1009-637X
通讯作者	Luo, GP, Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Oasis Ecol & Desert Environm, Urumqi 830011, Peoples R China
中文摘要	Understanding the effect of human activities on the soil environment is fundamental to understanding global change and sustainable development. In the process of transformation of tropical rain forests and semiarid grasslands to farmlands, land degradation usually occurs. But the transformation of arid desert landscape to oasis is found to have quite different consequences. Taking an alluvial plain oasis in the north piedmont (if the Tianshan Mountains as a case study, we investigate oasis soil properties related to different land-use systems during the transformation of and desert to oases. Selected land-use systems consisted of an annual crop field less than 3 years old, annual crop field 3-6 years old, annual crop field more than 6 years old, perennial crop field less than 4 years old, perennial crop field of 4-6 years old, perennial crop field more than 6 years old, abandoned farmland more than 3 years old, woodland field more than 6 years old, ecological forestation field, natural shrubbery field, desert grass land, and saline or alkaline field. Different land-use systems affect significantly the distribution of sand, silt and clay. Sand content in oasis soil tends to decrease with cultivation years but silt and clay contents tend to be increased in the oasis soils. Soil fertility is higher in the land-use systems under strong human disturbance than under weak human disturbance. Oasis soil nutrients also tend to increase with cultivation years. Soils have a significantly lower salinity in the land-use systems under strong human disturbance than under weak human disturbance. Soil organic matter and nutrients of the annual and perennial crop systems in the oasis tend to increase with cultivation time with the oasis soil acting as a carbon sink. These results show that soils are not degraded and the soil quality is gradually improved under rational land use and scientific management patterns, including uniform exploitation of land resources, effective irrigation systems, sound drainage systems, balanced fertilizer application, crushed straw return to soil and transformation of annual crop fields to perennial ones.
学科主题	自然地理学
收录类别	SCI
公开日期	2011-08-19
内容类型	期刊论文
源URL	[http://ir.xjlas.org/handle/365004/10218]
专题	新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据)
推荐引用方式 GB/T 7714	Luo Geping,Chen Xi,Xu Wenqiang. Soil properties related to land-use systems in oases of Sangong river watershed, Xinjiang[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2008,18(4):483-498.
APA	Luo Geping,Chen Xi,&Xu Wenqiang.(2008).Soil properties related to land-use systems in oases of Sangong river watershed, Xinjiang.JOURNAL OF GEOGRAPHICAL SCIENCES,18(4),483-498.
MLA	Luo Geping,et al."Soil properties related to land-use systems in oases of Sangong river watershed, Xinjiang".JOURNAL OF GEOGRAPHICAL SCIENCES 18.4(2008):483-498.