National scale assessment of the soil erosion and conservation function of terraces in China
文献类型：期刊论文
| 作者 | Liu, Xiaoyu1,2; Xin, Liangjie1 ; Lu, Yahan1,2
|
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 129页码:14 |
| 关键词 | Terrace Soil erosion Soil conservation Spatialization RUSLE China |
| ISSN号 | 1470-160X |
| DOI | 10.1016/j.ecolind.2021.107940 |
| 通讯作者 | Xin, Liangjie(xinlj@igsnrr.ac.cn) |
| 英文摘要 | Terraces are not only productive but also have outstanding ecological functions, becoming an important soil and water conservation measure worldwide. Although there are many studies on soil and water conservation in terraces, due to the lack of data on the spatial distribution of terraces, most of the current studies are focused on small areas, lacking large-scale studies. This study is the first to quantitatively measure soil erosion and soil and water conservation capacity of terraces and their spatial distribution throughout China. The spatialization method and Revised Universal Soil Loss Equation model were used to calculate the soil erosion modulus and quantity of terraces and slope farmland at the pixel scale. The results showed that the average soil erosion modulus and soil erosion quantity for the terraces in China in 2017 were 273.56 t km-2 a-1 and 4.88 x 107 t, respectively. The average soil conservation modulus and soil conservation quantities in 2017 were 2132.59 t km-2 a-1 and 3.81 x 108 t, respectively. The terraces maintained 88.63% of the soil from erosion at the national scale. The vast majority of terraces experienced micro erosion (84.53%) and slight erosion (14.97%), with only a small percentage area of terraces experiencing moderate erosion and above. Spatially, the terraces in the Black Soil Area, Red Soil Area, and Rocky Mountain Area had better soil conservation effects, while the terraces in the Loess Plateau and Tibetan Plateau had poor soil conservation effects. Findings from this study will help to understand regional differences in soil erosion in terraces in China, which in turn will help to formulate environmental protection policies. |
| WOS关键词 | LOESS PLATEAU ; RUSLE MODEL ; WATER CONSERVATION ; LAND ABANDONMENT ; GIS ; SERVICE ; RUNOFF ; REGION ; SCHEME ; BASIN |
| 资助项目 | Key Projects of the National Natural Science Foundation of China[41930757] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000685000300003 |
| 出版者 | ELSEVIER |
| 资助机构 | Key Projects of the National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/164555]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xin, Liangjie |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiaoyu,Xin, Liangjie,Lu, Yahan. National scale assessment of the soil erosion and conservation function of terraces in China[J]. ECOLOGICAL INDICATORS,2021,129:14. |
| APA | Liu, Xiaoyu,Xin, Liangjie,&Lu, Yahan.(2021).National scale assessment of the soil erosion and conservation function of terraces in China.ECOLOGICAL INDICATORS,129,14. |
| MLA | Liu, Xiaoyu,et al."National scale assessment of the soil erosion and conservation function of terraces in China".ECOLOGICAL INDICATORS 129(2021):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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