干旱区生态环境知识资源中心(Arid): Effects of land uses on soil physic-chemical properties and erodibility in collapsing-gully alluvial fan of Anxi County, China

Arid

	Effects of land uses on soil physic-chemical properties and erodibility in collapsing-gully alluvial fan of Anxi County, China
	Deng Yusong; Xia Dong; Cai Chongfa; Ding Shuwen
来源期刊	Journal of Integrative Agriculture
ISSN	2095-3119
出版年	2016
卷号	15 期号:8 页码:1863-1873
英文摘要	As a special kind of soil erosion that severely deteriorates the qualities of soil in granite regions, collapsing gully is widely distributed in the tropical and subtropical areas of South China. In particular, collapsing-gully erosion produces a large amount of sediment deposited on the plough layer of alluvial fan farmland and causes increase of desertification, great reduction of nutrients and rapid enhancement of erodibility in the soil. This study was designed to evaluate the effects of different land uses on the soil physic-chemical properties and erodibility of collapsing-gully alluvial fan. Our results show that the physical properties of soil in alluvial fan were greatly improved with smaller bulk density, increased soil porosity, strengthened water holding capacity and a higher particulate matter content. The chemical properties of soil were also significantly improved, including pH, cation exchange capacity, and the contents of organic matter, total and available nitrogen, potassium and phosphorus. All the land uses were proved to improve the soil properties, especially in the tea garden, vegetable land and paddy field. The results of correlation analyses among the properties demonstrate that the physical and chemical properties were significantly correlated, indicating that improving the soil physical properties is an effective method to increase the soil nutrient in the farmland of collapsing-gully alluvial fan. In addition, the application of land uses included grass land, eucalyptus forest land, vegetable land, tea garden, sweet potato land, and paddy field reduced the erodibility of the soil compare to bare land. The erodibility K values of soils in grass land, eucalyptus forest land, vegetable land, tea garden, sweet potato land, and paddy field were 14.43, 16.97, 45.45, 33.12, 18.94, and 34.01% lower than those of bare land, respectively. The results of multiple linear regression analysis show that the soil erodibility had a significant correlation with the physic-chemical properties, especially the soil texture and the content of organic matter. In conclusion, our results demonstrate that different land use patterns are effective to improve the quality of the soil in collapsing-gully alluvial fan, including the improvements of the soil structure, nutrients and anti-erosion ability. Our findings provide important implications for the soil improvement in the farmland of collapsing-gully alluvial fan.
英文关键词	land use soil physic-chemical properties soil erodibility collapsing gully alluvial fan Anxi
类型	Article
语种	英语
开放获取类型	Other Gold, Bronze
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:5770760
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335694
作者单位	Deng Yusong, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei 430070, China.; Xia Dong, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei 430070, China.; Cai Chongfa, College of Resources and Environment, Huazhong Agricultural University, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Wuhan, Hubei 430070, China.; Ding Shuwen, College of Resources and Environment, Huazhong Agricultural University, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Wuhan, Hubei 430070, China.
推荐引用方式 GB/T 7714	Deng Yusong,Xia Dong,Cai Chongfa,et al. Effects of land uses on soil physic-chemical properties and erodibility in collapsing-gully alluvial fan of Anxi County, China[J],2016,15(8):1863-1873.
APA	Deng Yusong,Xia Dong,Cai Chongfa,&Ding Shuwen.(2016).Effects of land uses on soil physic-chemical properties and erodibility in collapsing-gully alluvial fan of Anxi County, China.Journal of Integrative Agriculture,15(8),1863-1873.
MLA	Deng Yusong,et al."Effects of land uses on soil physic-chemical properties and erodibility in collapsing-gully alluvial fan of Anxi County, China".Journal of Integrative Agriculture 15.8(2016):1863-1873.