| The effects of straw mulching and film mulching on soil ecological environment were studied by taking straw and black mulch as experimental material. Results showed that in low temperature season (January to June and October to December), film mulching and straw mulching woodland exhibited 0.02 ~1.03℃higher than the control treatment. In high temperature season (July to September), straw mulching was 0.1~0.5益lower than the control treatment,and so was film mulching in August (the highest temperature), although it showed slightly high. Daily variation of forest land temperature showed similar results with seasonal change. Film mulching and straw mulching increased the amount of soil moisture in different soil layer by more than 30%, with an average of over 60%. Mulching could reduce soil bulk density and increase soil porosity to improve soil permeability, thereby improving soil productivity. Mulching could reduce forest tending management fees and forestland operating costs, thereby improving the economic benefit. Forest mulchingtechnology plays an important role in improving the survival rate of afforestation and optimization of soil physical and chemical properties. |
