Copy Reference A County Conquers Erosion
Year:1986 Issue:8
Column: Economy
Author: DENG SHULIN
Release Date:1986-08-01
Page: 18,19
Full Text:
EROSION has become one of the world's most serious problems, washing away tens of thousands of tons of precious topsoil every year. Checking erosion and restoring the land are complicated, long-term...
Please login first!