the ecological technique has been widely applied to the protection of the red bed slope recently; nevertheless the red bed mudstone slope ecological protection theory is not systematically studied.
生态防护已较广泛地应用于红层边坡,但红层边坡生态防护的理论尚未进行系统研究。
lastly, based on the above, it discusses the field survey work in the projects of slope ecological protection engineering.