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现代水土保持科学的发展,自李仪址、张含英诸位先生提出治黄必须治沙,治沙必从黄土高原水土保持人手的观点,并拟定以减流减沙为目标的土地善用、地形改变、农作改善和沟壑控制4大技术以来,至今已有80余年。80多年来中国水土保持经历了初期单项技术治理阶段、治理与山区发展相结合阶段和综合治理与大农业发展相结合3个阶段。至20世纪
The development of modern science of soil and water conservation, since Li Ye site, Mr. Zhang Youying put forward the Yellow River must rule the sand, sand control from the Loess Plateau soil and water conservation manpower point of view, and to reduce the flow of sand for the goal of land use, terrain changes , Agricultural improvement and gully control four major technologies, so far, more than 80 years. Over the past 80 years, China’s soil and water conservation has undergone three phases: the initial stage of individual technical management, the stage of combining governance and development of mountainous areas, and the combination of comprehensive management and large-scale agricultural development. To the 20th century