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落叶松是我国北方重要的造林树种,建国后黑龙江省先后营造了近三千万亩.鉴于落叶松人工林下的土壤水、肥状况一直是林业工作者普遍关注的问题,为此我们从1977年开始对落叶松人工林下的土壤、水、肥状况进行了研究.定位试验地设在完达山林区东京城江山娇实验林场1955年营造的落叶松林内.林分的郁闭度经间伐扶育后分别为0.5、0.8、1.0.试验区内的土壤属于棕色森林土,土壤湿润肥沃. 现仅就落叶松人工林土壤、水、肥动态中几个主要问题通过定位试验得到的数据整理如下:
Larch is an important afforestation tree species in northern China, Heilongjiang Province after the founding of the PRC has created nearly 30 million mu.As the soil water and fertilizer under the larch plantation has been a common concern of forestry workers, for which we from 1977 The soil, water and fertilizer conditions under the larch plantations were studied at the beginning of the year, and the experimental sites were located in the larch forests created in 1955 in Jiaopeng Jiao Experimental Forest Farm, Tokyo, Wandasha Forest Region. The results showed that the soil in the experimental area belonged to brown forest soil and the soil was moist and fertile.There were only some data about the main problems in the dynamics of soil, water and fertilizer of larch plantation as follows: