Uncertainties of global historical land use scenarios in past-millennium cropland reconstruction in China
文献类型：期刊论文
| 作者 | Zhao, Caishan1,2; He, Fanneng1; Yang, Fan3,4; Li, Shicheng5 |
| 刊名 | QUATERNARY INTERNATIONAL
 |
| 出版日期 | 2022-12-20 |
| 卷号 | 641页码:87-96 |
| ISSN号 | 1040-6182 |
| 关键词 | Uncertainty Cropland dataset Comparison analysis China Past millennium |
| DOI | 10.1016/j.quaint.2022.03.020 |
| 通讯作者 | He, Fanneng(hefn@igsnrr.ac.cn) |
| 英文摘要 | Global historical land use scenarios, including HYDE3.2 and PJ, are widely used in global change research. However, their uncertainties have not been well evaluated. Based on the historical-documents-based Chinese historical cropland dataset (CHCD), we evaluated the uncertainties of the representative global historical land use scenarios in past-millennium cropland reconstruction in China in terms of the area and spatial pattern. The results show that apparent differences exist in cropland area at the national scale between HYDE3.2 or PJ and CHCD for the Song-Liao-Jin Era (AD 1000-1279) and the Qing dynasty to present (AD 1644-1999), with a maximum relative difference ratio (RDR) of about-35% and 112%, respectively. We detected similar differences at the provincial scale, except for Guizhou, Heilongjiang, Jilin, and Xinjiang provinces. Specifically, HYDE3.2 underestimates cropland areas of nine provinces, with an absolute difference of up to 5.2 x 104 km2, while overestimates cropland areas of ten provinces, with an absolute difference of up to 5.1 x 104 km2. As for the spatial pattern, the percentage of grids with an absolute value of RDR greater than 70% between HYDE3.2 and CHCD reach up to 54%-82%, mainly distributed in major agricultural areas, frontier areas, and geographical transition zones. In conclusion, neither HYDE3.2 nor PJ reflects China's cropland area and its past-millennium change accurately, resulting from the differences in data sources, area estimation, and spatial allocation methods. |
| WOS关键词 | CARBON ; COVER ; EMISSIONS ; HOLOCENE ; AREA ; DATASETS ; CLIMATE |
| 资助项目 | National Key Research and Development Program of China ; Chinese Academy of Sciences Strategic Priority Research Program ; National Natural Science Foundation of China ; [2017YFA0603304] ; [XDA19040101] ; [41671149] |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000908035200005 |
| 资助机构 | National Key Research and Development Program of China ; Chinese Academy of Sciences Strategic Priority Research Program ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/188937]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | He, Fanneng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Henan Univ, Collaborat Innovat Ctr Yellow River Civilizat Join, Minist Educ, Kaifeng 475001, Henan, Peoples R China 4.Henan Univ, Key Res Inst Yellow River Civilizat & Sustainable, Kaifeng 475001, Henan, Peoples R China 5.China Univ Geosci, Sch Publ Adm, Wuhan 430074, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Caishan,He, Fanneng,Yang, Fan,et al. Uncertainties of global historical land use scenarios in past-millennium cropland reconstruction in China[J]. QUATERNARY INTERNATIONAL,2022,641:87-96. |
| APA | Zhao, Caishan,He, Fanneng,Yang, Fan,&Li, Shicheng.(2022).Uncertainties of global historical land use scenarios in past-millennium cropland reconstruction in China.QUATERNARY INTERNATIONAL,641,87-96. |
| MLA | Zhao, Caishan,et al."Uncertainties of global historical land use scenarios in past-millennium cropland reconstruction in China".QUATERNARY INTERNATIONAL 641(2022):87-96. |
入库方式： OAI收割
来源：地理科学与资源研究所
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