Efficient use of the Loess Plateau dammed land is consolidate the results of returning farmland to forest and grassland one of the important means.the test is base of the dammed land of Zhifang Valley in Jin river

and analyzed the soil moisture

soil level between the organic matter

total nitrogen

total phosphorus and available nutrient

such as differences in physical and chemical properties.The results showed that with the close crop of available nutrient content of the average performance for advanced age dammed land> lowed dammed land > terrace> wasteland slopes;and from the soil profile in different parts of soil

between the level of organic matter

total nitrogen

total phosphorus and available nutrient

The discrepancy was less

in the soil available nutrient supply capacity of more persistent

dammed land silt and sediment accumulation more nutrients available

and showed that the dammed land have greater potential to increase production.