hearing conservation

According to Oosterling ( 1927), what share direct is not strightened situation [of] forest, but ability of absorbent serasah [of] timberland den and water. Though forest stay in intact situation, however as anxious as [do] not be formed or lose and land;ground have the character of solidly, channeling of surface when torrential rains remain to be big ( Notohadiprawiro,1981).