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通过对辽东、辽西人工针阔混交林中凋落物分解动态、防火防病虫机理、森林益鸟的流动频率试验及调查研究 ,结果表明 ,日本落叶松与色赤杨混交林枯落物年失重率大于日本落叶松纯林。枯落物 (叶、枝 )年失重率 ,第 1年纯林分别为混交林的 78.3%、75.0 % ;第 2年为 87.5%、82 .1%。各林型枯落物年失重率为慢—快—慢的节律 ,枯落物营养元素的释放率是阔叶树种高于针叶树种。针阔混交林能提高林分的防火、抗病虫能力 ,招引多种森林益鸟 ,促进生态平衡
Through the study on litter decomposition dynamics, fire prevention and pest control mechanism, flow frequency of forest bird, and the investigation of the artificial coniferous and broad-leaved mixed forest in Liaodong and western Liaoning, the results showed that the weight loss rate of litter in the mixed forest of Larix gmelinii and Greater than Japanese larch pure forest. The annual weight loss rate of the litter (leaves and branches) was 78.3% and 75.0% in the first year and 87.5% and 82.1% in the second year respectively. The annual weight loss rate of forest litters was slow - fast - slow. The release rate of nutrient elements in litter was higher than that of coniferous species. Mixed coniferous and broad-leaved forest can improve the forest’s fire prevention, pest-resistance capacity, attracting a variety of forest birds, promote ecological balance