Making a brief analysis of the water and soil loss present situation in Daxing＇anling area which locates to the upstream region of Nenjiang River, and giving the water and soil loss of this area that have been made n...Making a brief analysis of the water and soil loss present situation in Daxing＇anling area which locates to the upstream region of Nenjiang River, and giving the water and soil loss of this area that have been made near 20 years, as well as the factors of the water and soil loss. According to the factors corresponding prevention measure and forecast model have been put forward, make a brief introduction to this model in this article. It is helpful to improve the local soil conservation and sustainable development.展开更多
选取中国知网(CNKI)数据库和Web of Science(WOS)核心合集数据库中近30 a水土流失遥感领域的3058篇论文,利用CiteSpace和R语言等文献计量软件对论文发表的期刊分布、合作网络、关键词聚类、关键词时区变化等方面进行可视化分析。结果表...选取中国知网(CNKI)数据库和Web of Science(WOS)核心合集数据库中近30 a水土流失遥感领域的3058篇论文,利用CiteSpace和R语言等文献计量软件对论文发表的期刊分布、合作网络、关键词聚类、关键词时区变化等方面进行可视化分析。结果表明:①全球发文量质心正逐渐由西向东迁移,中国和美国在世界范围内对水土流失遥感领域的学术影响力最大;②CNKI数据库中的研究热点主要聚焦于分析黄土高原和三峡库区等典型水土流失区的植被信息、土地侵蚀模型、土地利用等方面,WOS数据库中的研究热点在此基础上,增加了对小流域和集水区坡面产流、河道汇流的关注;③两大数据库的研究主题演化特征存在差异,不同阶段的研究热点具有明显的时代特征,未来利用高光谱数据并结合新兴技术来精细化治理水土流失是该领域今后的重要发展趋势。展开更多
基金Supportde by The Natual Science Fund of Heilongjiang Province(E0335)
文摘Making a brief analysis of the water and soil loss present situation in Daxing＇anling area which locates to the upstream region of Nenjiang River, and giving the water and soil loss of this area that have been made near 20 years, as well as the factors of the water and soil loss. According to the factors corresponding prevention measure and forecast model have been put forward, make a brief introduction to this model in this article. It is helpful to improve the local soil conservation and sustainable development.
文摘选取中国知网(CNKI)数据库和Web of Science(WOS)核心合集数据库中近30 a水土流失遥感领域的3058篇论文,利用CiteSpace和R语言等文献计量软件对论文发表的期刊分布、合作网络、关键词聚类、关键词时区变化等方面进行可视化分析。结果表明:①全球发文量质心正逐渐由西向东迁移,中国和美国在世界范围内对水土流失遥感领域的学术影响力最大;②CNKI数据库中的研究热点主要聚焦于分析黄土高原和三峡库区等典型水土流失区的植被信息、土地侵蚀模型、土地利用等方面,WOS数据库中的研究热点在此基础上,增加了对小流域和集水区坡面产流、河道汇流的关注;③两大数据库的研究主题演化特征存在差异,不同阶段的研究热点具有明显的时代特征,未来利用高光谱数据并结合新兴技术来精细化治理水土流失是该领域今后的重要发展趋势。
