Optimum water supplement strategy to restore reed wetland in the Yellow River Delta
Wang, Xuehong1; Zhang, Dongjie1,2; Guan, Bo3; Qi, Qing1,2; Tong, Shouzheng1
2017-05-23
发表期刊PLOS ONE
ISSN1932-6203
卷号12期号:5
摘要In order to supply optimum water to restore reed wetlands used for bird habitats, a field investigation and greenhouse experiment were conducted. Three water supplementation stages (early stage at 20 May, middle stage at 20 July and later stage at 20 September, respectively) and five depths (0, 10, 15, 20 and 35 cm over the surface, respectively) were established, with three replicates for each treatment combination. Reed growth characteristics (survival rate, height, density and biomass) and soil properties of field investigation and experiment were recorded to determine the impacts of water supplementation on reed wet-land restoration. The field investigation showed that reeds in natural wetlands grow better than those in degraded wetlands and soil properties in degraded wetlands were significantly different from soils in natural wetlands. With freshwater supplementation, reed growth characteristics and soil properties greatly improved. As water depth increased, reed growth decreased gradually. Reeds grew best in shallow water depth (<= 10cm) than in the greater flooding depths. Saturated soils with no standing water at the early stage of reed growth increased reed survival and water depth can be increased as the reeds grow. During the process of water supplementation, soil salinity was reduced significantly. Soil salinity was reduced dramatically at early and middle stages of reed growth, but it increased slightly at the later stage. Soil pH increased greatly during the experiment. Soil total nitrogen (TN) and total organic carbon (TOC) showed contrasting changes, with soil TN decreasing and TOC increasing. To best manage reed wetlands restoration, we suggest saturating wetland in the spring to stimulate reed germination, increasing surface water depth up to 15cm at the stage of reed rapid growth, and then reducing water depth during the later growth stage.
DOI10.1371/journal.pone.0177692
项目资助者National Natural Science Foundation of China(41301052 ; 31300325)
收录类别SCI
关键词[WOS]PHRAGMITES-AUSTRALIS ; COASTAL WETLAND ; CLIMATE-CHANGE ; SOIL ; SALINITY ; IMPACTS ; GROWTH ; DEPTH ; CHINA ; PLANT
文章类型Article
语种英语
WOS研究方向Science & Technology - Other Topics
WOS记录号WOS:000402058800023
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/22524
专题中科院海岸带环境过程与生态修复重点实验室
作者单位1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun, Jilin, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Shandong, Peoples R China
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Wang, Xuehong,Zhang, Dongjie,Guan, Bo,et al. Optimum water supplement strategy to restore reed wetland in the Yellow River Delta[J]. PLOS ONE,2017,12(5).
APA Wang, Xuehong,Zhang, Dongjie,Guan, Bo,Qi, Qing,&Tong, Shouzheng.(2017).Optimum water supplement strategy to restore reed wetland in the Yellow River Delta.PLOS ONE,12(5).
MLA Wang, Xuehong,et al."Optimum water supplement strategy to restore reed wetland in the Yellow River Delta".PLOS ONE 12.5(2017).
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