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《Journal of Beijing Forestry University》 1990-01
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Studies on the Mixed Stand of Pinus tabulae formis and Quercus acutissima

Zhai Mingpu(Forest Resources College)Tan Weijun Tan Zhanmin(Forestry Bureau of Linqu County, Shandong Province)  
Tree growth,root systems,soil conditions and the microclimate of mixed plantation of Pinus tabulaeformis and Quercus acutissima were studied.Results indicated that the mixture had distinct merits,stem volume was increased by 14.9%~23.9%,and stok-rig by 35.4%~39.0%.The main reason for a higher growth rate in the irixed than in the pure stand is that the root system distribution is rational and root mass is increased.The elements N and P in the soil increased by (?)%~64%,while air humidity and soil moisture in the mixed plantation increased by 11% and 5%,respectively.
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