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Estimation and Mapping of Actual and Potential Grassland Root Carbon Storage: A Case Study in the Altay Region, China

文献类型：期刊论文

作者Li, Fangzhen2,3,4; Zhong, Huaping2; Ouyang, Kehui1; Zhao, Xiaomin3,4; Li, Yuzhe2
刊名AGRONOMY-BASEL
出版日期2022-11-01
卷号12期号:11页码:16
关键词root carbon storage potential storage grassland HASM Altay Prefecture
DOI10.3390/agronomy12112632
通讯作者Zhao, Xiaomin(zhaoxm889@126.com) ; Li, Yuzhe(liyuzhe@igsnrr.ac.cn)
英文摘要The actual root carbon storage (ARCS) and potential root carbon storage (PRCS) of grasslands play an important role in the global carbon balance and carbon neutralization. However, estimation of these indicators is difficult. In addition, their spatial patterns and crucial driving factors also require clarification. In this study, an approach for accurate estimation of ARCS and PRCS was developed incorporating a support vector machine model and high-accuracy surface modeling. Based on field data collected from Altay Prefecture in 2015, the estimation accuracy (R-2) of root biomass in the 0-10, 10-20, and 20-30 cm soil layers of grassland were 0.73, 0.63, and 0.60, respectively. In addition, the spatial patterns of actual root carbon density (ARCD) and potential root carbon density (PRCD) were analyzed. The ARCD increased with the increase in elevation. High PRCD was located on hillsides with a gentle slope. The dominant interaction factors for the ARCD spatial pattern were temperature and precipitation, whereas the main interaction factors for the PRCD pattern were temperature and slope. The grassland ARCS and PRCS in Altay Prefecture were estimated to be 48.52 and 22.69 Tg C, respectively. We suggest there is considerable capacity to increase grassland ARCS in the study area.
WOS关键词BELOW-GROUND BIOMASS ; SOIL ORGANIC-MATTER ; TERRESTRIAL ECOSYSTEMS ; CLIMATE ; PATTERNS ; DYNAMICS
资助项目National Key R&D Program of China[2020YFD1100603-02] ; National Science and Technology Foundation Work of China[2013FY110900] ; National Science and Technology Foundation Work of China[2011FY110400] ; National Natural Science Foundation of China[41971276] ; Graduate Innovation Foundation of Jiangxi Province, China[YC2020-B089]
WOS研究方向Agriculture ; Plant Sciences
语种英语
出版者MDPI
WOS记录号WOS:000880748400001
资助机构National Key R&D Program of China ; National Science and Technology Foundation Work of China ; National Natural Science Foundation of China ; Graduate Innovation Foundation of Jiangxi Province, China
源URL[http://ir.igsnrr.ac.cn/handle/311030/186582]  
专题中国科学院地理科学与资源研究所
通讯作者Zhao, Xiaomin; Li, Yuzhe
作者单位1.Jiangxi Agr Univ, Sch Anim Sci & Technol, Nanchang 330045, Jiangxi, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
3.Key Lab Poyang Lake Watershed Agr Resources & Eco, Nanchang 330045, Jiangxi, Peoples R China
4.Jiangxi Agr Univ, Sch Land Resource & Environm, Nanchang 330045, Jiangxi, Peoples R China
推荐引用方式
GB/T 7714		 Li, Fangzhen,Zhong, Huaping,Ouyang, Kehui,et al. Estimation and Mapping of Actual and Potential Grassland Root Carbon Storage: A Case Study in the Altay Region, China[J]. AGRONOMY-BASEL,2022,12(11):16.
APA Li, Fangzhen,Zhong, Huaping,Ouyang, Kehui,Zhao, Xiaomin,&Li, Yuzhe.(2022).Estimation and Mapping of Actual and Potential Grassland Root Carbon Storage: A Case Study in the Altay Region, China.AGRONOMY-BASEL,12(11),16.
MLA Li, Fangzhen,et al."Estimation and Mapping of Actual and Potential Grassland Root Carbon Storage: A Case Study in the Altay Region, China".AGRONOMY-BASEL 12.11(2022):16.

入库方式： OAI收割

来源：地理科学与资源研究所

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