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树木根系是林木有机体的重要组成部分。研究树木根系的数量、组成和分布,对于全面了解林木的生长发育规律,进一步探索林木地上与地下部分之间的关系,有利于确定相应的丰产技术措施。但是由于根系的研究既繁重又费工。因此使得对于根系的研究成为森林生物生产力研究中薄弱环节之一。基于上述原因,我场对于落叶松人工林的根系进行了调查研究。现把初步调查研究结果分述如下。一、试验地概况根系调查试验地设在我场跃进营林施业区40林班32小班。该林分是1957年用二年苗营造的长白落叶松纯林,初植密度为6600株/公顷,林龄为24年,平均树高为14.5米,
Tree roots are an important part of forest organisms. Studying the quantity, composition and distribution of the root system of trees can provide a good basis for understanding the law of growth and development of trees and further exploring the relationship between the aboveground and underground parts of trees. However, research on the root system is laborious and laborious. Therefore, the research on the root system has become one of the weak points in the study of forest biological productivity. Based on the above reasons, I conducted a survey on the root system of larch plantation. Now the findings of the preliminary survey are as follows. First, the experimental site Survey root test in my field leap into the forest facilities 40 forest classes 32 small classes. The stands are pure white-leafed Larix forests planted in 1957 with a planting density of 6,600 plants per hectare and a provenance of 24 years with an average tree height of 14.5 meters.