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Authors Liu, SH; Kang, YH; Wan, SQ; Wang, ZC; Liang, ZW; Jiang, SF; Wang, RS
Author Full Name Liu, Shuhui; Kang, Yaohu; Wan, Shuqin; Wang, Zhichun; Liang, Zhengwei; Jiang, Shufang; Wang, Ruoshui
Title Germination and growth of Puccinellia tenuiflora in saline-sodic soil under drip irrigation
Source AGRICULTURAL WATER MANAGEMENT
Language English
Document Type Article
Author Keywords Restoration; Saline-sodic grassland; Soil matric potential; Songnen Plain; Water and salt regulation
Keywords Plus SONGNEN PLAIN; WATER-USE; AMELIORATION; EFFICIENCY; GRASSLAND
Abstract Field experiments were conducted to investigate the effects of drip irrigation on seed germination and Puccinellia tenuiflora growth in saline-sodic soils in the Songnen Plain, northeast China. The experiment included five treatments in which the soil matric potential (SMP) at 0.2 m depth was controlled at -5, -10, -15, -20 and -25 kPa after the P. tenuiflora germinated. Consequently, the total water applied increased with increased matric potential. The results showed that drip irrigation influenced the water content, electrical conductivity of saturated-soil extract (ECe) and pH distributions, and inhibited the buildup of salts in the root zone, which enabled seeds to germinate and emerge. The ECe and pH in the whole soil profiles decreased as the SMP increased. After two years of the experiment, the tiller numbers, height, spike number and length, aboveground biomass and coverage of P. tenuiflora all increased greatly; and the growth of -15 and -20 kPa treatments were better than other treatments. Taken together, these results indicate that drip irrigation can be used to provide suitable conditions for the germination of P. tenuiflora seeds in the Songnen Plain and induce good growth, and the SMP of -15 and -20 kPa at a depth of 0.2 m immediately under a drip emitter can be used as an indicator for saline-sodic P. tenuiflora grassland restoration in Songnen Plain. The results provide theoretical and technological guidance for reclamation and use of salt-affected soil, as well as for easy and quick restoration and reconstruction of saline-sodic grasslands. (C) 2012 Elsevier B.V. All rights reserved.
Author Address [Liu, Shuhui; Kang, Yaohu; Wan, Shuqin; Jiang, Shufang; Wang, Ruoshui] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; [Liu, Shuhui; Wang, Ruoshui] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; [Wang, Zhichun; Liang, Zhengwei] Chinese Acad Sci, NE Inst Geog & Agroecol, Changchun 130012, Peoples R China
Reprint Address Kang, YH (corresponding author), Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, 11A Datun Rd, Beijing 100101, Peoples R China.
E-mail Address kangyh@igsnrr.ac.cn
Funding Agency and Grant Number National Key Technology R&D Program of ChinaNational Key Technology R&D Program [2009BAC55B07]; Chinese Academy of SciencesChinese Academy of Sciences [KZCX2-XB2-13]; National Science Foundation for Young Scientists of China [51009126]
Funding Text This study was supported by the National Key Technology R&D Program of China (Grant No. 2009BAC55B07), the Action Plan for the Development of Western China of the Chinese Academy of Sciences (Grant No. KZCX2-XB2-13), and the National Science Foundation for Young Scientists of China (Grant No. 51009126).
Times Cited 21
Total Times Cited Count (WoS, BCI, and CSCD) 22
Publisher ELSEVIER
Publisher City AMSTERDAM
Publisher Address RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
ISSN 0378-3774
29-Character Source Abbreviation AGR WATER MANAGE
ISO Source Abbreviation Agric. Water Manage.
Publication Date JUN
Year Published 2012
Volume 109
Beginning Page 127
Ending Page 134
Digital Object Identifier (DOI) 10.1016/j.agwat.2012.03.001
Page Count 8
Web of Science Category Agronomy; Water Resources
Subject Category Agriculture; Water Resources
Document Delivery Number 945PP
Unique Article Identifier WOS:000304288800014
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