基于文献计量的地下水动态变化对土壤水盐影响的研究进展与展望

Research Progress and Prospects on Impacts of Groundwater Dynamics on Soil Water and Salt Based on Bibliometrics

[目的]系统探究地下水动态变化对土壤盐渍化演变影响及其作用机制,为综合治理盐碱地提供理论参考。[方法]基于VOSviewer和Citespace可视化软件,以Web of Science核心数据库(WoS)和中国知网数据库(CNKI)相关文献为研究对象,从发文数量、发文国家、发文机构、发文作者和关键词聚类及其演变着手,对该领域2000-2022年国内外研究进行定量、多元的动态可视化分析。[结果]国内外地下水动态变化对土壤水盐影响研究总体呈现波动上升趋势;该领域形成以中美两国为关键核心的研究格局,且中国与美国、德国、澳大利亚等国家的合作联系较为密切;核心作者和机构聚焦盐碱地综合利用和地下水调控等方面的研究,极大地推动耕地质量有效提升;英文文献涉及的学科主要为水资源(26.18%)和环境科学生态学(23.22%),中文文献中比例最大的学科则是农业基础科学(30.05%)和农艺学(27.76%);该领域主线脉络由单一化向多元化逐步完善,由盐渍化基础理论向盐碱地综合利用提质增效转变,并积极响应国家战略需求,明确盐碱地综合利用发展方向。[结论]该领域仍是未来的研究热点,今后可以重点从以下几方面开展研究:优化水资源配置,建立健全水资源开发管理体系,搭建全国盐碱地综合利用云平台,加强信息技术与水利深度融合,深入探究地下水调控对土壤包气带水盐运移的影响机制。该研究可为盐碱地综合利用提供新思路、新方法。

[Objective]The impact of groundwater dynamics on the evolution of soil salinization and its mechanism were systematically investigated to provide a theoretical reference for the comprehensive treatment of saline-alkaline land.[Methods]Based on VOSviewer and Citespace visualization software,the relevant literature in the Web of Science core database(WoS)and China National Knowledge Infrastructure(CNKI)was used to analyse the number of articles issued and their countries and institution form.A quantitative and multivariate dynamic visualization analysis of domestic and international research in this field from 2000-2022 was carried out,starting from the amount,country institution and author of publications,and keyword clustering,and their changes over time.[Results]The research on the impact of groundwater dynamics on soil water salinity at home and abroad followed a fluctuating upward trend with China and the United States as the core,and the cooperation between China and the United States,Germany,Australia,and other countries was more closely linked.The core authors and institutions focused on the comprehensive utilization of saline-alkaline land and groundwater regulation,which has contributed greatly to the effective improvement of the quality of arable land.The English literature mainly covered the disciplines of water resources(26.18%)and environmental science and ecology(23.22%);the disciplines that accounted for the largest proportion of the Chinese literature were basic agricultural science(30.05%)and agronomy(27.76%).The focus has been gradually improved from single to diversified research and has been transformed from the basic theory of salinity to the comprehensive utilization of saline-alkaline land to improve quality and increase the efficiency of land use.Studies have actively responded to national strategic needs and have clarified the comprehensive utilization of saline-alkaline land to improve the quality of arable land.[Conclusion]This field is a hotspot for future research.Future research should focus on the following aspects:optimal allocation of water resources,establishment of a sound water resources development and management system,construction of a national cloud platform for comprehensive utilization of saline and alkaline land,strengthen the in-depth integration of information technology and water conservancy,and in-depth investigation of the mechanism of influence of groundwater regulation on the water and salt transport in the soil-air pocket.This research could provide new ideas and methods for the comprehensive utilization of saline land.