The monitoring work was performed on soil erosion in Lizixi drainage area respectively in 1986 and 1999 by multiple meth......

为了更好的保护我省东部地区的生态环境 ,实施退耕、还林、还草工程是尤为必要的。利用现有资料 ,对我省黄、湟流域坡耕地分布、面......