Modeling the contribution of abiotic exchange to CO2 flux in alkaline soils of arid areas

被引:0
|
作者
WenFeng WANG [1 ,2 ]
Xi CHEN [1 ]
GePing LUO [1 ]
LongHui LI [1 ]
机构
[1] State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences
[2] University of Chinese Academy of Sciences
关键词
soil respiration; temperature sensitivity; Q10; model; soil abiotic CO2 exchange; soil alkalinity;
D O I
暂无
中图分类号
S154 [土壤生物学];
学科分类号
071012 ; 0713 ;
摘要
Recent studies on alkaline soils of arid areas suggest a possible contribution of abiotic exchange to soil CO2 flux(Fc).However,both the overall contribution of abiotic CO2 exchange and its drivers remain unknown.Here we analyzed the environmental variables suggested as possible drivers by previous studies and constructed a function of these variables to model the contribution of abiotic exchange to Fc in alkaline soils of arid areas.An automated flux system was employed to measure Fc in the Manas River Basin of Xinjiang Uygur autonomous region,China.Soil pH,soil temperature at 0–5 cm(Ts),soil volumetric water content at 0–5 cm(θs)and air temperature at10 cm above the soil surface(Tas)were simultaneously analyzed.Results highlight reduced sensitivity of Fc to Ts and good prediction of Fc by the model Fc=R10Q10(Tas–10)/10+r7q7(pH–7)+λTas+μθs+e which represents Fc as a sum of biotic and abiotic components.This presents an approximate method to quantify the contribution of soil abiotic CO2 exchange to Fc in alkaline soils of arid areas.
引用
收藏
页码:27 / 36
页数:10
相关论文
共 50 条
  • [1] Modeling the contribution of abiotic exchange to CO2 flux in alkaline soils of arid areas
    WenFeng Wang
    Xi Chen
    GePing Luo
    LongHui Li
    [J]. Journal of Arid Land, 2014, 6 : 27 - 36
  • [2] Modeling the contribution of abiotic exchange to CO2 flux in alkaline soils of arid areas
    Wang, WenFeng
    Chen, Xi
    Luo, GePing
    Li, LongHui
    [J]. JOURNAL OF ARID LAND, 2014, 6 (01) : 27 - 36
  • [3] Biotic and Abiotic Contribution to Diurnal Soil CO2 Fluxes from Saline/Alkaline Soils
    Zhong-Yuan Wang
    Jiang-Bo Xie
    Yu-Gang Wang
    Yan Li
    [J]. Scientific Reports, 10
  • [4] Biotic and Abiotic Contribution to Diurnal Soil CO2 Fluxes from Saline/Alkaline Soils
    Wang, Zhong-Yuan
    Xie, Jiang-Bo
    Wang, Yu-Gang
    Li, Yan
    [J]. SCIENTIFIC REPORTS, 2020, 10 (01)
  • [5] Research Progress of CO2 Flux in Saline and Alkali soils in Arid area
    Liu, L. J.
    Jiao, Y.
    Yang, W. Z.
    Yu, J. X.
    Song, C. N.
    Yu, Y. Z.
    Yang, J.
    [J]. 5TH INTERNATIONAL CONFERENCE ON ADVANCES IN ENERGY, ENVIRONMENT AND CHEMICAL ENGINEERING, 2019, 358
  • [6] Contribution of abiotic factors to CO2 emission from soils in the freeze–thaw cycles
    I. N. Kurganova
    V. O. Lopes de Gerenyu
    [J]. Eurasian Soil Science, 2015, 48 : 1009 - 1015
  • [7] Contribution of abiotic factors to CO2 emission from soils in the freeze-thaw cycles
    Kurganova, I. N.
    de Gerenyu, V. O. Lopes
    [J]. EURASIAN SOIL SCIENCE, 2015, 48 (09) : 1009 - 1015
  • [8] Coupling of net ecosystem CO2 exchange and evapotranspiration of irrigated maize field in arid areas
    Wang, Xingwang
    Wang, Xianghao
    Wei, Qiangli
    Wang, Weishu
    Wang, Shuai
    Huo, Zailin
    Lei, Huimin
    [J]. JOURNAL OF HYDROLOGY, 2021, 603
  • [9] Abiotic processes dominate CO2 fluxes in Antarctic soils
    Shanhun, Fiona L.
    Almond, Peter C.
    Clough, Tim J.
    Smith, Carol M. S.
    [J]. SOIL BIOLOGY & BIOCHEMISTRY, 2012, 53 : 99 - 111
  • [10] Growing season net ecosystem CO2 exchange of two desert ecosystems with alkaline soils in Kazakhstan
    Li, Longhui
    Chen, Xi
    van der Tol, Christiaan
    Luo, Geping
    Su, Zhongbo
    [J]. ECOLOGY AND EVOLUTION, 2014, 4 (01): : 14 - 26