Water-dominated negative effects of nitrogen enrichment on soil respiration in a temperate steppe

被引：6
作者：
Li, Kunyu [1 ]
Niu, Mengnan [1 ]
Bai, Wenming [2 ]
Yang, Zhongling [1 ]
Li, Guoyong [1 ]
机构：
[1] Henan Univ, Sch Life Sci, Int Joint Res Lab Global Change Ecol, Kaifeng 475004, Peoples R China
[2] Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
来源：
APPLIED SOIL ECOLOGY | 2021年 / 165卷
基金：
中国国家自然科学基金;
关键词：
Global change; Nitrogen deposition; Nonlinear response; Soil carbon flux; Soil moisture; Temperate grassland; CARBON STORAGE; DEPOSITION; RESPONSES; FLUXES; FERTILIZATION; BIODIVERSITY; ECOSYSTEMS; GRASSLAND; MICROBES; BIOMASS;
D O I：
10.1016/j.apsoil.2021.104023
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
Soil respiration (SR) has been demonstrated to be affected by nitrogen (N) enrichment. However, most studies examine the effect of N enrichment on SR using only two levels of N treatments (i.e. control vs N enrichment). Current understanding of SR responses to varying rates of N enrichment remains unclear. A field manipulative experiment with eight levels of N addition (0, 1, 2, 4, 8, 16, 32, 64 g N m(-2) yr(-1)) was performed to examine SR responses to N enrichment rates in a temperate steppe of northern China. A nonlinear decrease in SR along N addition gradient was observed in the temperate steppe. N addition decreased SR mainly through reducing soil moisture in this study. These findings facilitate accurate estimation of soil C flux in the scenario of intensified N enrichment.
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页数：5
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共 30 条
  • [21] Nonlinear responses of ecosystem carbon fluxes and water-use efficiency to nitrogen addition in Inner Mongolia grassland
    Tian, Dashuan
    Niu, Shuli
    Pan, Qingmin
    Ren, Tingting
    Chen, Shiping
    Bai, Yongfei
    Han, Xingguo
    [J]. FUNCTIONAL ECOLOGY, 2016, 30 (03) : 490 - 499
  • [22] A novel soil manganese mechanism drives plant species loss with increased nitrogen deposition in a temperate steppe
    Tian, Qiuying
    Liu, Nana
    Bai, Wenming
    Li, Linghao
    Chen, Jiquan
    Reich, Peter B.
    Yu, Qiang
    Guo, Dali
    Smith, Melinda D.
    Knapp, Alan K.
    Cheng, Weixin
    Lu, Peng
    Gao, Yan
    Yang, An
    Wang, Tianzuo
    Li, Xin
    Wang, Zhengwen
    Ma, Yibing
    Han, Xingguo
    Zhang, Wen-Hao
    [J]. ECOLOGY, 2016, 97 (01) : 65 - 74
  • [23] Variations in the nitrogen saturation threshold of soil respiration in grassland ecosystems
    Wang, Chao
    Ren, Fei
    Zhou, Xuhui
    Ma, Wenhong
    Liang, Cunzhu
    Wang, Jinzhou
    Cheng, Jianwei
    Zhou, Huakun
    He, Jin-Sheng
    [J]. BIOGEOCHEMISTRY, 2020, 148 (03) : 311 - 324
  • [24] Nitrogen addition reduces soil respiration but increases the relative contribution of heterotrophic component in an alpine meadow
    Wang, Jinsong
    Song, Bing
    Ma, Fangfang
    Tian, Dashuan
    Li, Yong
    Yan, Tao
    Quan, Quan
    Zhang, Fangyue
    Li, Zhaolei
    Wang, Bingxue
    Gao, Qiang
    Chen, Weinan
    Niu, Shuli
    [J]. FUNCTIONAL ECOLOGY, 2019, 33 (11) : 2239 - 2253
  • [25] White R.P., 2000, Grassland Ecosystems
  • [26] Microbial carbon use efficiency in grassland soils subjected to nitrogen and phosphorus additions
    Widdig, Meike
    Schleuss, Per-M.
    Biederman, Lori A.
    Borer, Elizabeth T.
    Crawley, Michael J.
    Kirkman, Kevin P.
    Seabloom, Eric W.
    Wragg, Peter D.
    Spohn, Marie
    [J]. SOIL BIOLOGY & BIOCHEMISTRY, 2020, 146
  • [27] Water- and plant-mediated responses of soil respiration to topography, fire, and nitrogen fertilization in a semiarid grassland in northern China
    Xu, Wenhua
    Wan, Shiqiang
    [J]. SOIL BIOLOGY & BIOCHEMISTRY, 2008, 40 (03) : 679 - 687
  • [28] The decline in plant biodiversity slows down soil carbon turnover under increasing nitrogen deposition in a temperate steppe
    Yang, Sen
    Liu, Weixing
    Qiao, Chunlian
    Wang, Jing
    Deng, Meifeng
    Zhang, Beibei
    Liu, Lingli
    [J]. FUNCTIONAL ECOLOGY, 2019, 33 (07) : 1362 - 1372
  • [29] Effects of simulated nitrogen deposition on soil respiration components and their temperature sensitivities in a semiarid grassland
    Zhang, Chunping
    Niu, Decao
    Hall, Sharon J.
    Wen, Haiyan
    Li, Xudong
    Fu, Hua
    Wan, Changgui
    Elser, James J.
    [J]. SOIL BIOLOGY & BIOCHEMISTRY, 2014, 75 : 113 - 123
  • [30] Divergent Effects of Nitrogen Addition on Soil Respiration in a Semiarid Grassland
    Zhu, Cheng
    Ma, Yiping
    Wu, Honghui
    Sun, Tao
    La Pierre, Kimberly J.
    Sun, Zewei
    Yu, Qiang
    [J]. SCIENTIFIC REPORTS, 2016, 6
123