Changes of soil CO2 flux under different stocking rates during spring-thaw period in a northern desert steppe, China

文献类型： 外文期刊

第一作者： Tang, Shiming

作者： Tang, Shiming;Zhai, Xiajie;Liu, Kesi;Wang, Kun;Tang, Shiming;Han, Guodong;Jiang, Yuanyuan;Zhou, Pei;Wang, Chengjie;Zhang, Yujuan;Guo, Yupin;Wilkes, Andreas

作者机构：

关键词： Carbon dioxide;Spring thaw period;Stocking rate;Desert steppe;Inner Mongolia

期刊名称：ATMOSPHERIC ENVIRONMENT （ 影响因子：4.798； 五年影响因子：5.295 ）

ISSN： 1352-2310

年卷期： 2015 年 122 卷

页码：

收录情况： SCI

摘要： Atmospheric carbon dioxide (CO2) plays an important role in the radiative balance of the earth's atmosphere. Most studies have primarily focused on the growing season. However, few reports are available on CO2 emissions in the Inner Mongolian desert steppe ecosystem during the spring thaw period. To assess the responses of soil-atmosphere CO2 exchange to different stocking rates in the desert steppe, we conducted this study during the winter-spring transition period. The experiment was conducted with four treatments defined along a grazing gradient of un-grazing (UG), light grazing (LG), moderate grazing (MG) and heavy grazing (HG) with three replications of each treatment in the desert steppe of Inner Mongolia during the spring thaw period in 2010 and 2011. Soil CO2 fluxes were measured using Picarro G1301 (an automatic cavity ring-down spectrophotometer) in twelve grazing areas. Our results indicate that mean CO2 emission during the spring thaw period was 8.23 mg CO2-C m(-2) h(-1). Average CO2 fluxes over the two years during the spring thaw period were 10.59 mg CO2-C m(-2) h(-1) (UG), 8.10 mg CO2-C m(-2) h(-1) (LG), 7.89 mg CO2-C m(-2) h(-1) (MG) and 6.35 mg CO2-C m(-2) h(-1) (HG). Cumulative CO2 emission amounted to 118.51 kg C ha(-1) during the spring thaw period (March-April) on average over two years. In this study, grazing practice significantly reduced CO2 emission during the spring thaw period in the desert steppe. Our results are in accordance with other findings suggesting that emissions of CO2 are regulated significantly by soil temperature during the spring thaw period in this area. The significant empirical relationships provide a simple way to estimate regional amounts of CO2 emission from desert steppe during the spring thaw period. (C) 2015 Elsevier Ltd. All rights reserved.

分类号：

  • 相关文献

[1]Establishing the carrying capacity of the grasslands of China: a review. Zhang, Y. J.,Zhang, X. Q.,Wang, X. Y.,Liu, N.,Kan, H. M.,Zhang, X. Q.. 2014

[2]The effect of increased atmospheric carbon dioxide concentration on emissions of nitrous oxide, carbon dioxide and methane from a wheat field in a semi-arid environment in northern China. Lam, Shu Kee,Norton, Rob,Chen, Deli,Lin, Erda,Norton, Rob.

[3]Microbial dynamic changes under different grazing intensities in growing seasons of Desert steppe. He, Jing,Yang, Tingting,Shi, Tao. 2014

[4]Effects of stocking density on growth and non-specific immune responses in juvenile soft-shelled turtle, Pelodiscus sinensis. Xinran Chen,Cuijuan Niu,Lijun Pu.

[5]Modeling Optimal Grazing Management for Grassland Rehabilitation on the Typical Steppe: A Case Study in Taipusi Banner, Inner Mongolia, China. Zheng, Yang,Xu, Zhu,Zheng, Yang,Kemp, David,Takahashi, Taro,Takahashi, Taro,Jones, Randall.

[6]Status of Nature Reserves in Inner Mongolia, China. Ma, Wenjing,Feng, Gang,Zhang, Qing,Ma, Wenjing. 2016

[7]Temporal variations in PM(10) and particle size distribution during Asian dust storms in Inner Mongolia. Hoffmann, Carsten,Funk, Roger,Sommer, Michael,Li, Yong. 2008

[8]Impact of Land Use Intensity on Ecosystem Services: An Example from the Agro-Pastoral Ecotone of Central Inner Mongolia. Liu, Yang,Li, Qian,Zhang, Xuefeng,Liu, Qingfu,Liu, Yang,Zhang, Qing,Zhang, Xuefeng,Liu, Qingfu,Liu, Yang,Zhang, Qing,Ding, Yong,Ding, Yong,Zhang, Qing,Li, Qian. 2017

[9]Drivers of soil net nitrogen mineralization in the temperate grasslands in Inner Mongolia, China. Liu, Xing-Ren,Li, Sheng-Gong,Liu, Xing-Ren,Li, Sheng-Gong,Ren, Jian-Qiang,Ren, Jian-Qiang.

[10]Notes on Hybos Meigen (Diptera: Empididae) in Inner Mongolia with description of a new species. Wang, Ning,Dong, Hui,Yang, Ding,Wang, Ning,Dong, Hui.

[11]Chrysotus Meigen (Diptera: Dolichopodidae) from Inner Mongolia with descriptions of two new species. Liu, Ruosi,Wang, Ning,Yang, Ding.

[12]Long-Term Overgrazing-Induced Changes in Topsoil Water-Retaining Capacity in a Typical Steppe. Li, Xiliang,Hou, Xiangyang,Guo, Fenghui,Ding, Yong,Duan, Junjie,Liu, Zhiying.

[13]Drivers of nitrous oxide fluxes from the semi-arid Leymus chinensis grassland in Inner Mongolia, China. Liu, Xingren,Zhang, Qingzhong,Liu, Xingren,Dong, Yunshe,Ren, Jianqiang. 2012

[14]New species of Medetera from Inner Mongolia, China (Diptera, Dolichopodidae, Medeterinae). Tang, Chufei,Yang, Ding,Wang, Ning. 2016

[15]Institutional change in social-ecological systems: The evolution of grassland management in Inner Mongolia. Robinson, Brian E.,Li, Ping,Hou, Xiangyang. 2017

[16]Facilitation by leguminous shrubs increases along a precipitation gradient. Zhang, Hai-Yang,Lu, Xiao-Tao,Bai, Edith,Wang, Xiao-Bo,Wang, Zheng-Wen,Zhang, Hai-Yang,Hartmann, Henrik,Knapp, Alan K.,Wang, Xiao-Guang,Yu, Qiang,Han, Xing-Guo. 2018

[17]Linking nutrient strategies with plant size along a grazing gradient: Evidence from Leymus chinensis in a natural pasture. Li Xi-liang,Liu Zhi-ying,Ren Wei-bo,Ding Yong,Ji Lei,Guo Feng-hui,Hou Xiang-yang. 2016

[18]Applicability study of using in-situ gamma-ray spectrometry technique for Cs-137 and Pb-210(ex) inventories measurement in grassland environments. Li, Junjie,Wang, Yanglin,Wu, Jiansheng,Li, Junjie,Wang, Yanglin,Wu, Jiansheng,Li, Junjie,Li, Yong. 2010

[19]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,Lu, Peng,Gao, Yan,Yang, An,Wang, Tianzuo,Li, Xin,Han, Xingguo,Zhang, Wen-Hao,Tian, Qiuying,Zhang, Wen-Hao,Liu, Nana,Chen, Jiquan,Chen, Jiquan,Reich, Peter B.,Reich, Peter B.,Yu, Qiang,Cheng, Weixin,Wang, Zhengwen,Han, Xingguo,Yu, Qiang,Smith, Melinda D.,Knapp, Alan K.,Yu, Qiang,Smith, Melinda D.,Guo, Dali,Cheng, Weixin,Ma, Yibing.

[20]Effects of grazing and topography on dust flux and deposition in the Xilingele grassland, Inner Mongolia. Hoffmann, C.,Funk, R.,Sommer, M.,Wieland, R.,Li, Y..

作者其他论文 更多>>

微信小程序