Land use and land cover changes in coastal and inland wetlands cause soil carbon and nitrogen loss
Land use and land cover changes in coastal and inland wetlands cause soil carbon and nitrogen loss
复制标题
沿海和内陆湿地的土地利用和土地覆盖变化导致土壤碳和氮流失
DOI:
10.1111/geb.13597
复制
发表时间:
2022-10
影响因子:
6.4
通讯作者:
Jianwu Tang
中科院分区:
文献类型:
--
作者:
Lishan Tan;Zhenming Ge;Yuhuang Ji;Derrick Y. F. Lai;Stijn Temmerman;Shihua Li;XiuZhen Li;Jianwu Tang
AimNatural wetlands are widely considered important for mitigation of climate change, but they have been impacted by land use and land cover change (LULCC), often resulting in ecosystem degradation and significant changes in soil carbon (C) and nitrogen (N) dynamics. However, the impact of various LULCC types on wetland soil C and N dynamics remains unclear.LocationGlobal.Time period1982–2021.Major taxa studiedWetland.MethodsWe present a global meta‐analysis using a database of 487 sites compiled from the literature, demonstrating the response of soil C and N concentrations and stocks in coastal wetlands, riparian wetlands and peatlands to various types of LULCCs, including agricultural lands, drained wetlands, aquaculture ponds, pastures and constructed wetlands.ResultsThe conversion of coastal wetlands, riparian wetlands and peatlands to most LULCC types decreased the mean soil C and N concentrations and stocks by 17.8 ± 10.3, 25.3 ± 13.4 and 23.2 ± 6.3%, respectively. The loss of wetland soil C owing to LULCC is estimated to cause a potential CO2emission of 1.8–22.8 Mg CO2equivalent emission/ha/year, except for conversion to constructed wetlands. The soil C and N contents were more sensitive to LULCCs, relative to the stocks. We also found that the patterns of soil C and N variations were closely related to the conversion time since completion of LULCC. After LULCC, the response of soil C and N variables was sensitive to changes in plant biomass, soil water conditions, bulk density, pH and NH4+‐N concentration, with the major controlling factors varying with the conversion age.Main conclusionsOur results highlight the important role of LULCC in triggering soil C and N loss in natural wetlands, which enhances the greenhouse effect. As such, our study calls for sustainable land management strategies aiming at wetland conservation as a powerful tool to mitigate climate warming.
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影响因子:
6.1
作者:
Zhang Zhongsheng;Wang Jian Jim;Lyu Xianguo;Jiang Ming;Bhadha Jehangir;Wright Alan
通讯作者:
Wright Alan
影响因子:
6.1
作者:
Huan Zhang;A. Yin;Xiaohui Yang;Pengbao Wu;Manman Fan;Jingtao Wu;Ming Zhang;Chao Gao
通讯作者:
Huan Zhang;A. Yin;Xiaohui Yang;Pengbao Wu;Manman Fan;Jingtao Wu;Ming Zhang;Chao Gao
影响因子:
4.2
作者:
Wang, Quanying;Liu, Jingshuang;Wang, Yang;Guan, Jiunian;Liu, Qiang;Lv, Dui-an
通讯作者:
Lv, Dui-an
影响因子:
4.6
作者:
Gaveau DL;Salim MA;Hergoualc'h K;Locatelli B;Sloan S;Wooster M;Marlier ME;Molidena E;Yaen H;DeFries R;Verchot L;Murdiyarso D;Nasi R;Holmgren P;Sheil D
通讯作者:
Sheil D
影响因子:
6.9
作者:
G. Welbaum;A. V. Sturz;Z. Dong;J. Nowak
通讯作者:
G. Welbaum;A. V. Sturz;Z. Dong;J. Nowak