干旱区生态环境知识资源中心(Arid): Improvement of soil nutrient and biological properties and establishment of Lycium barbarum L. in an impermeable saline-sodic soil using drip irrigation

Arid

DOI	10.1071/SR18202
	Improvement of soil nutrient and biological properties and establishment of Lycium barbarum L. in an impermeable saline-sodic soil using drip irrigation
	Zhang, Tibin 1,2; He, Jianqiang 3; Feng, Hao 1,2; Zhan, Xiaoyun 1,2
通讯作者	Zhan, Xiaoyun
来源期刊	SOIL RESEARCH
ISSN	1838-675X
EISSN	1838-6768
出版年	2019
卷号	57 期号:1 页码:75-84
英文摘要	A sodicity-induced degraded wasteland, classified as takyric solonetz with low permeability (K-s < 0.1mm d(-1)), is spread widely across the arid area of north-west China. A 3-year field experiment was conducted to evaluate the improvement of soil properties and growth performance of Lycium barbarum L. Drip irrigation of 5mm was triggered in each irrigation event by controlling the soil matric potential above -15 kPa, and urea, phosphoric acid and potassium nitrate were applied with irrigation water. Soils were sampled intensively in soil transects in different years. Results showed that the soil total nitrogen and organic carbon contents in the root zone increased by 63.9% and 16.3% after 3 years respectively, due to the addition of fertiliser and the return of more residue with plant growth. Similar increases occurred in soil nitrate contents, which showed obvious mobility with water flow. After reclamation, the reduced soil pH helped activate the original unavailable phosphorus caused by the presence of calcium carbonate in native soil, and increased the soil phosphorus availability. Soil urease, alkaline phosphatase and sucrase activities in the root zone were enhanced significantly by reclamation. Remarkable increases in soil respiration rates occurred within the horizontal 20-cm-distance from the drip line. Compared with the perpendicular direction to the drip line, more plant roots developed in the parallel direction, and their spatial distribution appeared in the range of 40-cm-width and 60-cm-depth beneath the drip line. An acceptable survival rate (> 80%) and dry fruit yield (866 kg ha(-1)) were obtained at 3 years. The findings provide an alternative for reclaiming the saline-sodic soil with low permeability.
英文关键词	root growth sodic soil soil enzyme activity soil nutrition soil reclamation
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000457422400006
WOS关键词	MICROBIAL ACTIVITY ; CARBON ; RECLAMATION ; REDISTRIBUTION ; AVAILABILITY ; DYNAMICS ; NITROGEN ; SYSTEMS ; IMPACT ; PLANT
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218878
作者单位	1.Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Are, Minist Educ, Yangling 712100, Shaanxi, Peoples R China; 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China; 3.Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Tibin,He, Jianqiang,Feng, Hao,et al. Improvement of soil nutrient and biological properties and establishment of Lycium barbarum L. in an impermeable saline-sodic soil using drip irrigation[J]. 西北农林科技大学,2019,57(1):75-84.
APA	Zhang, Tibin,He, Jianqiang,Feng, Hao,&Zhan, Xiaoyun.(2019).Improvement of soil nutrient and biological properties and establishment of Lycium barbarum L. in an impermeable saline-sodic soil using drip irrigation.SOIL RESEARCH,57(1),75-84.
MLA	Zhang, Tibin,et al."Improvement of soil nutrient and biological properties and establishment of Lycium barbarum L. in an impermeable saline-sodic soil using drip irrigation".SOIL RESEARCH 57.1(2019):75-84.