Taking 4 typical shelterbelts in Chemingyu Forestry Station

Zhongyang County

Shanxi Province as studying subjects

the article discussed the relationship between soil anti-erosion ability and soil physical and chemical characteristics through measuring the soil anti-erosion index by the experiments of static soil collapse.The results indicated that:the soil anti-erosion ability varied apparently with the types of shelterbelt

among which the order of soil anti-erosion indices is as follows:combines foresty of Larix spp. and Betula platyhylla Suk. >Betula platyhylla Suk.>Larix spp>Quercus liaotungensisKoidz.;Anti-erosion ability decreases with the increase of soil depth and time of water soaking.Soil anti-erosion indices in up-per 20 centimeters are 2-5 times as these under 20 centimeters and present a cubic polynomial relation with time of soaking.The amount of soil bulk density

water-stable aggregate(>0.25 mm)

organic matter and total nitrogen is of significantly relations with anti erosiorrindex and some kind of lineal relation with its physical and chemical characteristics.