Assessment and trends of temporal‐spatial changes in land use and slope on soil erosion dynamics: a case study in the Qianhe Graben, China

IF 2.8 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Environmental Earth Sciences Pub Date : 2025-04-04 DOI:10.1007/s12665-025-12093-8

Zhiheng Liu, Wenjie Zhang, Chenyang Li, Tingting Wu, Jianhua Guo, Zongwei Wang, Suiping Zhou, Ling Han

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Abstract

Soil erosion is a process triggered by natural forces such as water and wind that strips away the soil layer from the Earth's surface and transports it elsewhere, posing a significant threat to agricultural production and human habitats. To quantify the temporal‐spatial response of surface soil erosion to land use/land cover (LULC) and slope changes in Qianhe Graben during 2003–2018, remote sensing and DEM data were integrated to estimate by using Revised Universal Soil Loss Equation (RUSLE) model. Our results showed that the surface soil erosion in the study area was at a slight or low level and decreased with a rate of 0.74 t ha⁻¹ year⁻¹. The mean erosion rates of different LULC in Qianhe Graben followed by sloping cropland > barelands and residential areas > flat cropland > grasslands > woodland, which is related to the LULC transformation process. Finally, the total soil loss amounts are mainly distributed at the slope zones of 8°–15° and 15°–25°, particularly for cropland in hilly and gully areas. Overall, these results not only give evidence for the effectiveness of the “Grain‐to‐Green” Project but also give significant assistance for the implementation of soil and water conservation measures.

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土地利用与坡度对土壤侵蚀动态的时空变化评价与趋势——以黔河地堑为例

土壤侵蚀是由水和风等自然力量引发的一个过程，它将地球表面的土层剥离并转移到其他地方，对农业生产和人类栖息地构成重大威胁。为了量化2003-2018年黔河地堑地表土壤侵蚀对土地利用/土地覆盖（LULC）和坡度变化的时空响应，采用修正通用土壤流失方程（RUSLE）模型，结合遥感和DEM数据进行估算。结果表明：研究区表层土壤侵蚀处于轻微或较低水平，以0.74 tha−1年−1的速率下降；前河地堑不同土地利用面积的平均侵蚀速率依次为坡耕地、裸地、居民点、平地、草地、林地，与土地利用面积转化过程有关。土壤流失量总量主要分布在8°~ 15°和15°~ 25°坡度带，以丘陵沟壑区农田为主。总之，这些结果不仅为“退耕还林”工程的有效性提供了证据，也为水土保持措施的实施提供了重要的帮助。

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来源期刊

Environmental Earth Sciences 环境科学-地球科学综合

CiteScore

5.10

自引率

3.60%

发文量

494

审稿时长

8.3 months

期刊介绍： Environmental Earth Sciences is an international multidisciplinary journal concerned with all aspects of interaction between humans, natural resources, ecosystems, special climates or unique geographic zones, and the earth: Water and soil contamination caused by waste management and disposal practices Environmental problems associated with transportation by land, air, or water Geological processes that may impact biosystems or humans Man-made or naturally occurring geological or hydrological hazards Environmental problems associated with the recovery of materials from the earth Environmental problems caused by extraction of minerals, coal, and ores, as well as oil and gas, water and alternative energy sources Environmental impacts of exploration and recultivation – Environmental impacts of hazardous materials Management of environmental data and information in data banks and information systems Dissemination of knowledge on techniques, methods, approaches and experiences to improve and remediate the environment In pursuit of these topics, the geoscientific disciplines are invited to contribute their knowledge and experience. Major disciplines include: hydrogeology, hydrochemistry, geochemistry, geophysics, engineering geology, remediation science, natural resources management, environmental climatology and biota, environmental geography, soil science and geomicrobiology.