文献类型： 外文期刊

作者： Liu, Wanmao ¹ ; Liu, Yuee ³ ; Liu, Guangzhou ¹ ; Xie, Ruizhi ¹ ; Ming, Bo ¹ ; Yang, Yunshan ⁴ ; Guo, Xiaoxia ⁴ ; Wang, Keru ¹ ; Xue, Jun ¹ ; Wang, Yonghong ⁵ ; Zhao, Rulang ⁵ ; Zhang, Wenjie ⁵ ; Wang, Yongjun ⁶ ; Bian, Shaofeng ⁶ ; Ren, Hong ⁷ ; Zhao, Xiaoyan ⁷ ; Liu, Peng ⁸ ; Chang, Jianzhi ⁹ ; Zhang, Guohe ⁹ ; Liu, Jiayou ¹⁰ ; Yuan, Liuzheng ¹⁰ ; Zhao, Haiyan ¹¹ ; Shi, Lei ¹¹ ; Zhang, Lili ¹² ; Yu, Lin ¹³ ; Gao, Julin ¹⁴ ; Yu, Xiaofang ¹⁴ ; Wang, Zhigang ¹⁴ ; Shen, Liguo ¹⁵ ; Ji, Ping ¹⁵ ; Yang, Shuzong ¹⁶ ; Zhang, Zhongdong ¹⁷ ; Xue, Jiquan ¹⁸ ; Ma, Xiangfeng ¹ ; Wang, Xiuquan ¹⁹ ; Lu, Tingqi ²⁰ ; Dong, Benchun ²¹ ; Li, Gang ²¹ ; Ma, Baoxin ²² ; Li, Jinqin ²³ ; Deng, Xiufeng ²⁴ ; Liu, Yonghong ²⁵ ; Yang, Qin ²⁵ ; Jia, Chunlan ²⁶ ; Chen, Xianping ²⁷ ; Fu, Hua ²⁷ ; Li, Shaokun ¹ ; Hou, Peng ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Minist Agr & Rural Affairs, Key Lab Crop Physiol & Ecol, Inst Crop Sci, Beijing 100081, Peoples R China

2.Ningxia Univ, Sch Agr, Yinchuan 750021, Ningxia, Peoples R China

3.Beijing Acad Agr & Forestry Sci, Maize Res Ctr, Beijing 100097, Peoples R China

4.Shihezi Univ, Coll Agron, Key Lab Oasis Ecoagr, Xinjiang Prod & Construct Grp, Shihezi 832000, Peoples R China

5.Ningxia Acad Agr Sci, Inst Crop Sci, Yongning 750105, Ningxia Hui Aut, Peoples R China

6.Jilin Acad Agr Sci, Inst Agr Resources & Environm, Changchun 130033, Peoples R China

7.Guizhou Acad Agr Sci, Guiyang 550006, Peoples R China

8.Shandong Agr Univ, Coll Agron, Tai An 271018, Shandong, Peoples R China

9.Inst Henan Xunxian Agr Sci, Xunxian 456284, Peoples R China

10.Luohe Acad Agr Sci, Luohe 462300, Peoples R China

11.Liaoning Acad Agr Sci, Inst Maize, Shenyang 110161, Peoples R China

12.Dandong Acad Agr Sci, Dandong 118109, Peoples R China

13.Heilongjiang Acad Land Reclamat & Agr Sci, Inst Crops, Jiamusi 154007, Peoples R China

14.Inner Mongolia Agr Univ, Hohhot 010018, Peoples R China

15.Jilin Acad Agr Sci, Jilin 132001, Jilin, Peoples R China

16.Agr Tech Extens Ctr Zunhua, Zunhua 064200, Peoples R China

17.Shanxi Acad Agr Sci, Inst Maize, Xinzhou 034000, Peoples R China

18.Northwest A&F Univ, Coll Agron, Yangling 712100, Peoples R China

19.Yulin Agr Technol Work Stn, Yulin 719000, Peoples R China

20.Mianyang Acad Agr Sci, Mianyang 621023, Sichuan, Peoples R China

21.Tonghua Acad Agr Sci, Tonghua 135007, Peoples R China

22.Nenjiang Inst Agr Sci, Qiqihar 161041, Peoples R China

23.Agr Tech Extens Ctr Tongliao, Tongliao 028000, Peoples R China

24.Laizhou Jinhai Seed Ind Co Ltd, Laizhou 261418, Peoples R China

25.Inst Crop Sci, Sichuan Acad Agr Sci, Chengdu 610066, Peoples R China

26.Shandong Denghai Seed Ind Co Ltd, Laizhou, Peoples R China

27.Suzhou Acad A&F Sci, Suzhou 234000, Peoples R China

关键词： Maize straw production; Straw return; Carbon input; Carbon emission; Soil carbon sequestration

期刊名称：AGRICULTURE ECOSYSTEMS & ENVIRONMENT （ 影响因子：6.576； 五年影响因子：7.088 ）

ISSN： 0167-8809

年卷期： 2022 年 328 卷

页码：

收录情况： SCI

摘要： Accurate estimation of maize (Zea mays L.) straw production and exploration of appropriate straw return rate have important reference for guiding the comprehensive utilization of crop straw. In this study, we estimated the maize straw production (including aboveground straw and root straw) in recent ten years (2009-2018) of the four largest maize growing regions across China using the latest obtained region-specific maize straw index and root-shoot ratio and then determined the appropriate straw return rate of different regions based on the carbon (C) balance between straw C input and the total C emissions generated in maize cultivation. Our results showed that there were significant differences in maize straw index (MSI) and root-shoot ratio between different maize growing regions in China with spatial distribution trends of Huanghuaihai (HM) > North (NM) > Southwest (SW) > Northwest (NW) maize regions and SW > NW > NM > HM, respectively. On average, in the recent ten years, the total maize straw production of the four major regions was 216.03 Mt yr(-1), including 192.73 Mt yr(-1) for the aboveground straw production and 23.30 Mt yr(-1) for root straw production. Nationally, when the maize straw return rate was 70.4% (45.8%, 57.4%, 62.2% and 84.5% in SW, HM, NW and NM respectively), the straw C input into soil can theoretically counterbalance the total C emission generated in maize cultivation. Additionally, the total soil organic C sequestration increased from 11.26 to 18.88 Mt C yr(-1) for the whole four regions under the scenarios of 0%, 25%, 50%, 75% and 100% maize straw return.