Based on the guiding ideology of “Close-to-nature forestry”, the soil chemical properties of Korean pine (Pinus koraiensis) plantation forest which was early done by canopy gap control were analyzed of Liangshui nature reserve in northeastern China. The results indicated that the nurture of forestry crevice diaphanous tended to improve the soil nutrient contents and significant differences of soil nutrients existed among different levels of soil for the same forest type of Korean pine. At 0<H≤20 cm layer, the content of available nitrogen, available phosphorus, available potassium, total nitrogen and total phosphorus in artificial pure Korean pine forest are 640.28 mgㆍkg-1, 7.54 mgㆍkg -1, 275.91 mgㆍkg-1, 1.114% and 0.075%, they all higher than the other kinds of forests and for average 1.1 times, 1.4 times, 1.3 times, 1.6 times and 1.2 times. From the layer of 0<H≤20 cm to 20 cm<H≤40 cm, soil nutrient indicators showed various degrees of decreasing in which organic matter had the greatest decline, decreasing by 170.64% while PH had the lowest decline, decreasing by 4.66%.
목차
Abstract Introduction Materials and Methods Study site Studies local forest land survey Data collection Analysis project and method Results and Discussion Korean pine forest soil nutrients under different operating conditions Soil foundation nutrient comparison in different layers Soil trace elements comparison under different operating conditions Conclusion Acknowledgements References
키워드
Korean pineclose-to-nature forestrythe nurture of canopy gap controlsoil chemical propertiessoil microelement
저자
Yao Wu [ Forestry School, Northeast Forestry University, Harbin, 150040, P. R. China, Forest Resaeach Institute, Forestry Science in Heilongjiang Province, Harbin, 150040, P. R. China ]
Kailun Qin [ Forestry School, Northeast Forestry University, Harbin, 150040, P. R. China ]
Jinfu Zhang [ Forest Farm, Dajuzi Forest Farm of Keshenketeng Forestry Burean in Inner Mongolia Province, Chifeng, 024000, P. R. China ]
Fengri Li [ Forestry School, Northeast Forestry University, Harbin, 150040, P. R. China ]
Corresponding author