Progress and prospect of soil water erosion research over past decade based on the bibliometrics analysis
WANG Han1,2, ZHAO Wenwu1,2, JIA Lizhi1,2
1. State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, 100875, Beijing, China; 2. Institute of Land Surface System and Sustainable Development, Faculty of Geographical Science, Beijing Normal University, 100875, Beijing, China
摘要基于Web of Science核心合集数据库，借助知识图谱工具，对2009—2018年国际土壤水蚀研究相关文献进行计量分析，分析其文献发表动态、学科分布和热点关键词特征。发现10年来土壤水蚀研究主要聚焦于5方面。1）空间分布模型和复合特性稳定同位素分析方法近年来得到广泛应用，水蚀模型融合现代信息技术是实现多尺度研究的必然途径。2）气候变化通过影响降雨量和降雨强度、CO2浓度，改变气温，导致径流和水蚀的变化；土地利用变化影响土壤特性和地表径流分布，改变土壤水蚀。3）水蚀显著改变土壤物理、化学、生物性质，导致农业生产力下降；通过沉积物输送引起非点源污染和水质恶化；水蚀过程显著改变碳、氮、磷的横向流动和再分配，影响生物地球化学循环。4）土壤水蚀是一个多尺度过程，具有尺度依赖性，如何系统研究多尺度水蚀过程及其尺度效应是研究者关注的核心问题。5）水蚀防治研究逐渐从小区尺度上推至区域、国家和全球尺度，研究者在工程措施、生物措施和土壤管理措施方面开展了针对性研究；黄土高原是水蚀防治与可持续发展研究的区域重点。在未来土壤水蚀研究过程中，有待于在提高土壤侵蚀模型模拟精度、发展大尺度水蚀模型基础上，深化水蚀作用下土壤碳循环研究，创新土壤侵蚀分析的尺度转换技术方法，逐步形成适应复杂变化环境、提升人类福祉、面向可持续发展目标的土壤水蚀防治理论与技术方法体系。
Abstract：[Background] Soil erosion is a grave threat to the sustainability of human society and economy. Soil water erosion, as a widespread soil erosion type in the world, is one of the main forms of soil degradation. In recent years, under the pressure of global climate change and frequent human disturbance, the risk of water erosion is further aggravated. However, the existing review articles in water erosion have not yet analyzed the literature publication dynamics and hot keyword evolution characteristics in recent years, and there is a lack of systematic collation of research hotspots in recent years. [Methods] Searching pattern in the Web of Science core collection database was Topic=soil water erosion or Topic=soil erosion by water or Topic=hydraulic erosion or Topic=soil hydraulic power erosion. This paper applied CiteSpace, a knowledge map tool, to conduct a bibliometric analysis of soil water erosion research from 2009 to 2018, revealing the literature output trends, subject distribution and hotspot keywords. [Results] There are 5 aspects on soil water erosion research in the past decade: 1) Spatial distribution models and stable isotope analysis methods have been widely used in recent years, and erosion models combined with modern information technology is an inevitable way to conduct multi-scale research. 2) Climate change has a great effect on runoff and water erosion by changing precipitation, CO2 concentration and temperature, and water erosion is affected by land use change for influencing on soil properties and surface runoff distribution simultaneously. 3) Water erosion causes significant effect on soil physical, chemical and biological properties, resulting in decline of agricultural productivity, non-point source pollution and deterioration of water quality occurs by sediment transport. Water erosion process significantly changes the lateral flow and redistribution of carbon, nitrogen, and phosphorus, affecting the biogeochemical cycle. 4) Soil water erosion is a multi-scale process with scale dependence. How to systematically study multi-scale water erosion process and its scale effect is the core issue that researchers concern. 5) The study of soil water erosion control has been extended from the plot scale to the regional, national and global scale. The researchers conducted targeted studies on engineering practices, biological practices, and soil management practices. The Loess Plateau is a hot spot area for water erosion control and sustainable development. [Conclusions] Regarding the future research of soil water erosion, on the basis of improving the simulation accuracy of soil erosion model and developing large-scale water erosion model, it is necessary to deepen the study of soil carbon cycle under water erosion, to innovate the scale conversion technology method of soil erosion analysis, and to gradually develop the theories and methodological system of soil water erosion prevention and control that adapts to complex environment and enhances human welfare and targets for sustainable development goals.
王涵, 赵文武, 贾立志. 近10年土壤水蚀研究进展与展望:基于文献计量的统计分析[J]. 中国水土保持科学, 2021, 19(1): 141-151.
WANG Han, ZHAO Wenwu, JIA Lizhi. Progress and prospect of soil water erosion research over past decade based on the bibliometrics analysis. SSWC, 2021, 19(1): 141-151.
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2021, Vol. 19 
