论文部分内容阅读
治黄大业中的坝系农业ＴｈｅＤａｍＳｙｓｔｅｍＡｇｒｉｃｕｌｔｕｒｅｉｎＨａｒｎｅｓｓｉｎｇｔｈｅＹｅｌｌｏｗＲｉｖｅｒ￥／／黎汝静，徐名居，刘思忆（兰州大学兰州７３００６０）正确评价坝系农业在治黄大业中的作用涉及三个层次上的不同问题。首先是对坝系农业...
Li Damian, Xu Mingju, Liu Siyi (Lanzhou University, Lanzhou 730060) The correct evaluation of the role of dam agriculture in the governance of the Yellow River involves three different levels of problems. The first is dam system agriculture ...