Different types of plantations were observed in Baishilazi National Nature Reserve, Liaoning Province,for 34 a. The environmental quality of Ables holophylla plantations was analyzed under different cutting systems.Analysis factors included soil erosion rate, humification degree of litters, and water hold capacity. The surf see soilloss of clear cutting area was 19 000 t.km-2.a-1 more than that of selective Cutting area. The content of soil organicmatter in board-leaved--Ables holophylla forest was 4.62% more than that in pure stand, and the water hold capacity of the mixed forest was 1 .43 time of that of pure stand. The mixed forest of board-leaved--Ables holophyllaby selective cutting can upgrade the ecological environment quality.
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