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从1960年—1963年我们在南京紫金山径流站和青龙山径流站,对马尾松和栎林进行以群落结构为基础的各水分平衡分量的观测,目的在于鉴定不同森林类型的水源涵养价值和土壤改良效用,为森林经营和水利规划提供科学依据。现将1960—1963年资料初步整理如下:用作试验的马尾松林,为13年生实生林,平均高7.5米,郁闭度0.7,林下活地被物以茅草、菅草为主,土壤质地为粉沙粘壤土;栎林以麻栎为主,系12—13年生次生萌芽林,平均高8米,郁闭度0.8,林下活地被物有香茅、菅草、蒿类,并夹杂
From 1960 to 1963, we observed mass balance components of Pinus massoniana and oak forests on the basis of community structure at Nanjing Zijinshan runoff station and Qinglongshan runoff station, with the purpose of identifying the water conservation values of different forest types and Soil improvement effect, provide a scientific basis for forest management and water conservancy planning. The data from 1960 to 1963 are summarized as follows: The masson pine forest used for the experiment is a 13-year-old forest with an average height of 7.5 meters and a canopy density of 0.7. The forest is mainly composed of thatch grass and Jian grass, soil texture For the silt clay loam; Quercus mongolica mainly Quercus, Department of 12-13 years of secondary germination of the forest, with an average height of 8 meters, canopy density 0.8, living under the forest were lentil, Jian grass, Artemisia, And mixed