Effects of land use change on soil carbon and nitrogen in purple paddy soil
文献类型：期刊论文
| 作者 | Li, Xiu-Zhi2; Han, Bang-Shuai3; Yang, Fan2; Hu, Cong-Yue2; Han, Guang-Zhong2; Huang, Lai-Ming1,4 |
| 刊名 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
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| 出版日期 | 2022-07-15 |
| 卷号 | 314页码:8 |
| ISSN号 | 0301-4797 |
| 关键词 | Paddy soil Land use change Soil organic carbon Stoichiometric ratio Stepwise regression |
| DOI | 10.1016/j.jenvman.2022.115122 |
| 通讯作者 | Han, Guang-Zhong(10000919@njtc.edu.cn) ; Huang, Lai-Ming(huanglm@igsnrr.ac.cn) |
| 英文摘要 | Rural land use patterns in southern China centered on household grain crop production have observed significant changes in the past few decades, profoundly affecting the release and fixation of carbon and nitrogen in the paddy soil of the region. This study selected different land use patterns developed in purple paddy soil on a decadal time scale, examined the changing rate of soil carbon and nitrogen of the purple paddy soil after abandonment, dry-farming, and fish-farming, and revealed the impact of land use changes on the balance of soil carbon and nitrogen. Results showed that the loss rates of soil organic carbon, readily oxidizable organic carbon and total nitrogen at the initial stage of dry-farming were most considerable, followed by abandonment and fish farming. An average of 11.95-13.94 g kg(-1) soil organic carbon loss and 0.90-1.03 g kg(-1) total nitrogen loss of the cultivation horizon were observed when purple paddy soil was abandoned and dry farmed. In comparison, the net release of soil organic carbon and total nitrogen after fish-farming were 6.64 and-0.23 g kg( 1). The changes of land use of rural area driven by rising labor cost and market demand have been inducing a continuous decline in soil C:N and significantly reducing the purple paddy soil's carbon sequestration ability. The promotion of no-tillage management, increase of organic manure application, and avoidance of over-use of nitrogen fertilizer in dryland farming need to be further considered to meet the dual pressures of China's resource constraints and carbon neutrality goals. A regression model may predict the changes in soil carbon after the change of paddy soil utilization, which provides a pathway for predicting changes in farmland carbon sequestration potential and carbon storage caused by changes in paddy soil utilization in the future. |
| WOS关键词 | GORGES RESERVOIR AREA ; MICROBIAL BIOMASS ; CLIMATE-CHANGE ; CLAY ; SEQUESTRATION ; TRANSFORMATION ; DECOMPOSITION ; RHIZOSPHERE ; DEPENDENCE ; POTASSIUM |
| 资助项目 | Key Project of Neijiang Normal University[17CZ03] ; Project of Neijiang Normal University[17JC25] ; National Innovation and Entrepreneurship Training Program for College Students[X2018015] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program[2019QZKK0306] ; National Natural Science Foundation of China[41977004] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2019052] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000797966500003 |
| 资助机构 | Key Project of Neijiang Normal University ; Project of Neijiang Normal University ; National Innovation and Entrepreneurship Training Program for College Students ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/177473]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Han, Guang-Zhong; Huang, Lai-Ming |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Neijiang Normal Univ, Coll Geog & Resources Sci, Special Agr Resources Tuojiang River Basin Sharing, Neijiang 641112, Sichuan, Peoples R China 3.Ball State Univ, Environm Geol & Nat Resource, Muncie, IN 47306 USA 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Yellow River Delta Modern Agr Engn Lab, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiu-Zhi,Han, Bang-Shuai,Yang, Fan,et al. Effects of land use change on soil carbon and nitrogen in purple paddy soil[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2022,314:8. |
| APA | Li, Xiu-Zhi,Han, Bang-Shuai,Yang, Fan,Hu, Cong-Yue,Han, Guang-Zhong,&Huang, Lai-Ming.(2022).Effects of land use change on soil carbon and nitrogen in purple paddy soil.JOURNAL OF ENVIRONMENTAL MANAGEMENT,314,8. |
| MLA | Li, Xiu-Zhi,et al."Effects of land use change on soil carbon and nitrogen in purple paddy soil".JOURNAL OF ENVIRONMENTAL MANAGEMENT 314(2022):8. |
入库方式： OAI收割
来源：地理科学与资源研究所
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