数字农科院2.0

Soil organic carbon changes in China's croplands: A newly estimation based on DNDC model

文献类型： 外文期刊

作者： Wuhan Ding;Naijie Chang;Guilong Zhang;Jiahao Kang;Xiaopei Yi;Jing Zhang;Jianfeng Zhang;Ligang Wang;Hu Li

作者机构：

关键词： China;Cropland;DNDC;Soil organic carbon

期刊名称： Science of the Total Environment

ISSN： 0048-9697

年卷期： 2023 年 905 卷

页码：

收录情况： SCIE（2023版） ; ; EI（2023版）

摘要： Soil Organic Carbon (SOC) in cropland represents a significant facet of the terrestrial ecosystem's carbon reservoirs, playing a pivotal role in global climate change mitigation efforts. Within the specific context of China, cropland SOC not only extends its implications beyond environmental impact but also serves as a critical factor in ensuring the stability and security of the nation's food supply. However, there is an ongoing argument about the changes in SOC and their spatial and temporal distribution patterns within China's croplands. In this study, we constructed a new county-level DNDC database for 2020, building upon 2003 research that quantified SOC stock in China's cropland using the DNDC model. Our aim was to assess the SOC storage and temporal changes of China's cropland in 2020 using same methodology to enhance estimation accuracy. The simulation results of the validated DNDC model revealed that the average SOC storage of China's croplands (0–30 cm) in 2020 was 6.02 Pg C, with the Northeast region contributing 23 % (1.37 Pg C). The SOC density in China varied from 18.55 to 152.57 t C ha−1, averaging at 49.65 t C ha−1. In 2020, China's cropland transitioned from a net loss of SOC in 2003 to a carbon sink, with cropland SOC density and SOC storage increased by 18.2 % and 21.6 % respectively. Notably, despite experiencing a loss of SOC compared to 2003, the Northeast region had the highest average SOC density in China. This study highlights that despite the increase in SOC density and storage in China's croplands over the last 17 years, there remains substantial potential for carbon sequestration given the current spatial distribution of SOC density's significant heterogeneity within China. The findings of this study offer data support for China's strategy to achieve food security and carbon neutrality.

分类号：

  • 相关文献

[1]Modeling Soil Organic Carbon Storage and Its Dynamics in Croplands of China. Tang Hua-jun,Qiu Jian-jun,Wang Li-gang,Li Hu,Li Chang-sheng,van Ranst, Eric. 2010

[2]Impact of agricultural ntensification on soil organic carbon: A study using DNDC in Huantai County, Shandong Province, China. Liao Yan,Wu Wen-liang,Meng Fan-qiao,Liao Yan,Li Hu. 2016

[3]Testing the RothC and DNDC models against long-term dynamics of soil organic carbon stock observed at cropping field soils in North China. Li, Shumin,Li, Jumei,Li, Xiuying,Ma, Yibing,Li, Changsheng,Huang, Shaomin,Li, Shengxiu,Ma, Yibing.

[4]Relationship between soil inorganic carbon and organic carbon in the wheat-maize cropland of the North China Plain. Shi, H. J.,Wang, X. J.,Li, D. W.,Guo, Y.,Zhao, Y. J.,Xu, M. G..

[5]Factors controlling regional grain yield in China over the last 20 years. Wang, Xiaobin,Cai, Dianxiong,Grant, Cynthia,Hoogmoed, Willem B.,Oenema, Oene.

[6]Management opportunities to mitigate greenhouse gas emissions from Chinese agriculture. Nayak, Dali,Smith, Pete,Saetnan, Eli,Newbold, Jamie,Cheng, Kun,Cheng, Yan-Fen,Zhu, Wei Yun,Pan, Genxing,Wang, Wen,Wang, Wen,Koslowski, Frank,Moran, Dominic,Wang, Jia-Kun,Liu, Jian-Xin,Yan, Xiaoyuan,Cardenas, Laura,Lui, Yuelai.

[7]Global-scale modelling of future changes in sown areas of major crops. Wu, Wenbin,Shibasaki, Ryosuke,Yang, Peng,Tan, Guoxin,Matsumura, Kan-ichiro,Sugimoto, Kenji.

[8]Estimations of soil organic carbon storage in cropland of China based on DNDC model. Tang, Huajun,Qiu, Jianjun,Van Ranst, Eric,Li, Changsheng. 2006

[9]Spatial patterns and effects of soil organic carbon on grain productivity assessment in China. Ye, L.,Verdoodt, A.,Van Ranst, E.,Zhu, J.. 2008

[10]Effects of enhancing soil organic carbon sequestration in the topsoil by fertilization on crop productivity and stability: Evidence from long-term experiments with wheat-maize cropping systems in China. Zhang, Xubo,Sun, Nan,Xu, Minggang,Zhang, Xubo,Wu, Lianhai,Zhang, Xubo,Bingham, Ian J.,Li, Zhongfang.

[11]基于DNDC模型的东北地区春玉米农田固碳减排措施研究. 杨黎,王立刚,李虎,邱建军,刘慧颖. 2014

[12]基于DNDC 模型的东北地区春玉米农田固碳减排措施研究. 杨黎,王立刚,李虎,邱建军,刘慧颖. 2014

[13]DNDC模型在中国的改进及其应用进展. 谢海宽,江雨倩,李虎,张婧,常乃杰,王立刚. 2017

[14]中国农田的温室气体排放. 李长生,肖向明,S.Frolking,B.MooreⅢ,W.Salas,邱建军,张宇,庄亚辉,王效科,戴昭华,刘纪远,秦小光,廖柏寒,R.Sass. 2003

[15]Estimates of N2O Emissions and Mitigation Potential from a Spring Maize Field Based on DNDC Model. Li Hu,Qiu Jian-Jun,Wang Li-gang,Xu Ming-yi,Liu Zhi-qiang,Wang Wei. 2012

[16]The development of China-DNDC and review of its applications for sustaining Chinese agriculture. Li Hu,Wang Ligang,Li Jianzheng,Gao Maofang,Zhang Jing,Zhang Jianfeng,Qiu Jianjun,Deng Jia,Changsheng Li,Frolking, Steve,Li Hu,Wang Ligang,Li Jianzheng,Gao Maofang,Zhang Jing,Zhang Jianfeng,Qiu Jianjun,Deng Jia,Changsheng Li,Frolking, Steve.

[17]A long-term sensitivity analysis of the denitrification and decomposition model. Qin, Xiaobo,Li, Yu'e,Gao, Qingzhu,Wan, Yunfan,Liu, Shuo,Liu, Yuntong,Qin, Xiaobo,Wang, Hong,McConkey, Brian,Brandt, Kelsey,Li, Yong,Lemke, Reynald,Li, Changsheng,Xu, Chao. 2013

[18]Identifying critical nitrogen application rate for maize yield and nitrate leaching in a Haplic Luvisol soil using the DNDC model. Zhang, Yitao,Wang, Hongyuan,Liu, Shen,Lei, Qiuliang,Zhai, Limei,Liu, Hongbin,Liu, Jian,He, Jianqiang,Ren, Tianzhi.

[19]An Agricultural Tri-dimensional Pollution Data Management Platform Based on DNDC Model. Jiang, Lihua,Wang, Wensheng,Yang, Xiaorong,Xie, Nengfu,Jiang, Lihua,Wang, Wensheng,Yang, Xiaorong,Xie, Nengfu,Cheng, Youping. 2011

[20]Simulation and Prediction of Soil Organic Carbon Spatial Change in Arable Lands Based on DNDC Model. Wang, Deying,Yao, Yanmin,Si, Haiqing,Zhang, Wenju,Tang, Huajun. 2014

作者其他论文 更多>>