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机构地区:[1]西北农林科技大学水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西杨凌712100
出 处:《农业机械学报》2016年第8期48-59,116,共13页Transactions of the Chinese Society for Agricultural Machinery
基 金:国家自然科学基金项目(41271299)
摘 要:从国内外沟蚀概念对比、沟蚀发生临界模型、沟蚀过程影响因素、沟蚀预报模型、沟蚀研究方法与技术等方面综合评述了近60年国内外沟蚀过程研究进展。提出了今后需要加强研究的重点领域,包括:沟蚀监测方法的标准化和规范化研究;沟蚀过程中沟溯源侵蚀、沟壁崩塌和沟底下切过程的定量表达;浅沟和切沟侵蚀的泥沙搬运能力量化及泥沙输移连续方程;包含浅沟侵蚀的坡面侵蚀预报模型和包含沟蚀的流域侵蚀预报模型;沟蚀防治技术研究。Gully erosion process researches in recent 60 years were reviewed from the following aspects:definition comparison of gully erosion at home and aboard,critical model for the initiation of gully erosion,influence factors of gully erosion process,prediction model of gully erosion,and gully erosion research methodology. Key research fields were also proposed, including standardization and normalization of gully erosion monitoring; quantification of head ward erosion, sidewall collapsing erosion,and deep cut erosion in gully erosion process; quantification of sediment transport capacity and establishment of sediment transportation continuity equation in ephemeral gully and gully erosion process;soil erosion prediction model at slope scale which included the ephemeral gully erosion,and soil erosion prediction model at watershed scale which covered the gully erosion; methodology research on gully erosion control.
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