Assessment of soil enzyme activities of saline–sodic soil under drip irrigation in the Songnen plain

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	Assessment of soil enzyme activities of saline–sodic soil under drip irrigation in the Songnen plain
	Kang,YH ; Liu,ShuHhui(刘淑慧) ; Wan,SQ ; Wang,RS
刊名	PADDY AND WATER ENVIRONMENT
	2013
卷号	11 期号:1-4 页码:87-95
通讯作者	Kang, YH
英文摘要	A field experiment was carried out to research the changes and spatial distributions of soil enzyme activities in saline-sodic soil for a different number of cultivated years under drip irrigation. The distributions of alkaline phosphatase, urease, and sucrase activities within 40 cm in both horizontal and vertical directions of the emitter in saline-sodic soils planted with Leymus chinensis for 1st, 2nd, and 3rd year were studied. A mathematical method was used to determine the relationships between soil enzyme activities and soil environmental factors contain the electrical conductivity of saturated-soil extract, pH value, available nutrient, and organic carbon. Alkaline phosphatase, urease, and sucrase activities all increased with cultivated years in saline-sodic soil under drip irrigation: from 4.5, 1.39 and 19.39 to 20.25, 3.17, and 61.33 mu g g(-1) h(-1), respectively, after planting L. chinensis for 3 year. Alkaline phosphatase, urease, and sucrase activities all decreased with increased horizontal and vertical distance from the emitter. After 3 year of drip irrigation, the correlations between soil enzyme activities and soil environment factors had stronger correlations than in the unreclaimed land. After 4-6 years, the soil enzyme activities should attain the level of the natural L. chinensis grassland.
收录类别	SCI
资助信息	National Key Technology R&D Program of China 2009BAC55B07;Chinese Academy of Sciences KZCX2-XB2-13;National Science Foundation for Young Scientists of China 51009126
公开日期	2013-06-17
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/27907]
专题	地理科学与资源研究所_研究生部
推荐引用方式 GB/T 7714	Kang,YH,Liu,ShuHhui,Wan,SQ,et al. Assessment of soil enzyme activities of saline–sodic soil under drip irrigation in the Songnen plain[J]. PADDY AND WATER ENVIRONMENT,2013,11(1-4):87-95.
APA	Kang,YH,Liu,ShuHhui,Wan,SQ,&Wang,RS.(2013).Assessment of soil enzyme activities of saline–sodic soil under drip irrigation in the Songnen plain.PADDY AND WATER ENVIRONMENT,11(1-4),87-95.
MLA	Kang,YH,et al."Assessment of soil enzyme activities of saline–sodic soil under drip irrigation in the Songnen plain".PADDY AND WATER ENVIRONMENT 11.1-4(2013):87-95.