Reconstruction of Forest and Grassland Cover for the Conterminous United States from 1000 AD to 2000 AD
文献类型：期刊论文
| 作者 | Wang, Yafei2; Yang, Fan1; He, Fanneng |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 15期号:13页码:3363 |
| 关键词 | long-term land use cover change forest and grassland cover land reclamation conterminous United States |
| DOI | 10.3390/rs15133363 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Spatially explicit reconstruction of historical land cover change is a prerequisite for a more comprehensive understanding of environmental changes. Anthropogenic activities have dramatically altered the land cover of the conterminous United States (CONUS), encroaching heavily on the primary vegetation. However, few datasets exist that depict the historical trajectory of forest and grassland cover changes in CONUS over the last millennium, and previous efforts have only focused on reconstructions for the last four centuries. By integrating remote sensing-derived land use/cover change (LUCC) data and potential vegetation data, we determined the potential extent of natural forest (PENF) and grassland (PENG) in CONUS. Based on a qualitative analysis of the trends and driving forces of forest and grassland changes, we devised a method of subtracting reconstructed historical cropland (1000-2000 AD) and built-up land (1850-2000 AD) from PENG and PENF to reconstruct a 5 min x 5 min grid dataset of forest and grassland cover at 13 time-points over the past millennium. The results showed that forest and grassland cover in CONUS underwent a slow decline (1000-1600 AD), an accelerated decline (1600-1800 AD), a dramatic decline (1800-1950 AD), and finally, a recovery (1950-2000 AD) over the study period. The modelled forest fraction decreased from 49% in 1000 AD to 33% in 2000 AD, representing a 32% area reduction, whereas the modelled grassland fraction decreased from 37% to 22%, representing a 42% area reduction. The reduction occurred primarily in the last 200 years, with forest and grassland reductions accounting for 86% and 97% of the total reduction over the millennium, respectively. Spatially, more than 80% of the land was originally covered by forests and grasslands, and the loss occurred mainly in the eastern CONUS and Great Plains over the past millennium. After the 1930s, farmland abandonment began in central and eastern CONUS, simultaneously with environmental protection laws. Federal government regeneration programs for forest and grassland resources and the Shelterbelt Project all contributed to a slowdown in forest and grassland decline and recovery in cover. |
| WOS关键词 | HISTORICAL LAND-USE ; THEMATIC ACCURACY ASSESSMENT ; CARBON EMISSIONS ; CLIMATE-CHANGE ; DATABASE ; HOLOCENE ; CHINA |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS记录号 | WOS:001028477300001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/194359]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, 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.Henan Univ, Key Res Inst Yellow River Civilizat & Sustainable, Collaborat Innovat Ctr Yellow River Civilizat Join, Kaifeng 475001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yafei,Yang, Fan,He, Fanneng. Reconstruction of Forest and Grassland Cover for the Conterminous United States from 1000 AD to 2000 AD[J]. REMOTE SENSING,2023,15(13):3363. |
| APA | Wang, Yafei,Yang, Fan,&He, Fanneng.(2023).Reconstruction of Forest and Grassland Cover for the Conterminous United States from 1000 AD to 2000 AD.REMOTE SENSING,15(13),3363. |
| MLA | Wang, Yafei,et al."Reconstruction of Forest and Grassland Cover for the Conterminous United States from 1000 AD to 2000 AD".REMOTE SENSING 15.13(2023):3363. |
入库方式： OAI收割
来源：地理科学与资源研究所
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