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Soil properties alter plant and microbial communities to modulate denitrification rates in subtropical riparian wetlands

文献类型：期刊论文

作者Ma, Lin1,3; Xiong, Ziqian2; Yao, Lunguang5; Liu, Guihua1,3,4; Zhang, Quanfa1,3,4; Liu, Wenzhi1,3,4
刊名LAND DEGRADATION & DEVELOPMENT
出版日期2020-03-02
页码11
ISSN号1085-3278
关键词denitrification potential denitrifier abundance plant-microbe interactions riparian wetlands vegetation structure
DOI10.1002/ldr.3569
英文摘要The capacity of riparian wetlands to remove nitrogen from upland runoff through the denitrification process is mainly controlled by soil properties and biological communities. However, the pathways or mechanisms by which soil properties and biological communities may regulate riparian denitrification rates are still largely unknown. Here, we measured the potential and unamended denitrification rates in sediments from riverine wetlands along a nitrogen-rich river in subtropical China. We also investigated the plant richness, vegetation cover, and abundance of denitrifying microorganisms in wetland soils. The results show that both potential and unamended denitrification rates presented strong seasonality, and were found to be significantly associated with nitrogen concentration in soils, implying that denitrification process in riparian wetlands is probably nitrogen limited. Moreover, potential and unamended denitrification rates were positively related to denitrifier abundance, plant richness, and vegetation cover. Using structural equation modeling, we found that moisture and nitrogen concentration could influence denitrification rates directly; the indirect effects of these factors on denitrification rates mediated through modulating the structure of plant and microbial communities. These findings suggest that denitrification rates and nitrogen removal capacities in riparian wetlands are jointly modulated by soil properties and biological communities.
资助项目National Natural Science Foundation of China[51709255] ; National Natural Science Foundation of China[31720103905] ; National Natural Science Foundation of China[31570463] ; CRSRI Open Research Program[CKWV2019769/KY] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2017388]
WOS研究方向Environmental Sciences & Ecology ; Agriculture
语种英语
出版者WILEY
WOS记录号WOS:000517251000001
源URL[http://202.127.146.157/handle/2RYDP1HH/14998]  
专题中国科学院武汉植物园
通讯作者Liu, Wenzhi
作者单位1.Chinese Acad Sci, CAS Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China
2.China Three Gorges Univ, Hubei Int Sci & Technol Cooperat Ctr Ecol Conserv, Yichang, Peoples R China
3.Chinese Acad Sci, Hubei Key Lab Wetland Evolut & Ecol Restorat, Wuhan Bot Garden, Wuhan, Peoples R China
4.Chinese Acad Sci, Ctr Plant Ecol, Core Bot Gardens, Wuhan, Peoples R China
5.Nanyang Normal Univ, Collaborat Innovat Ctr Water Secur Water Source R, Nanyang, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Lin,Xiong, Ziqian,Yao, Lunguang,et al. Soil properties alter plant and microbial communities to modulate denitrification rates in subtropical riparian wetlands[J]. LAND DEGRADATION & DEVELOPMENT,2020:11.
APA Ma, Lin,Xiong, Ziqian,Yao, Lunguang,Liu, Guihua,Zhang, Quanfa,&Liu, Wenzhi.(2020).Soil properties alter plant and microbial communities to modulate denitrification rates in subtropical riparian wetlands.LAND DEGRADATION & DEVELOPMENT,11.
MLA Ma, Lin,et al."Soil properties alter plant and microbial communities to modulate denitrification rates in subtropical riparian wetlands".LAND DEGRADATION & DEVELOPMENT (2020):11.

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来源：武汉植物园

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