摘要
根据物种多样性测度公式,把19块标地按乔木层、灌木层、草本层3个层次,分别计算各标地的物种多样性指数。根据计算结果,指出:各森林群落物种丰富度均表现为草本层>灌木层>乔木层的特点。多样性指数总体趋势因森林群落不同而有所差异:落叶松森林群落表现为草本层>灌木层>乔木层;油松、桦树、杨树森林群落表现为灌木层>草本层>乔木层;各森林群落中草本层与灌木层多样性指数均比较接近。并根据研究结果对关帝林区今后的森林经营方向提出了几点可行性建议。
According to the evaluation formula of species diversity,this paper calculates species diversity index of 19 pieces of sample land based on three layers of herb layer,shrub layer and small tree layer,and based on the calculation results,points out that the richness of various forest community species represents the features as follows：the richness of herb layer is more than that of shrub layer and more than that of small tree layer;the general trends of diversity index are different because of the difference of forest communities：for deciduous forest community,the diversity index of herb layer is more than that of shrub layer and more than that of small tree layer;for birch pinus,tabulaeformis and poplar forest community,the diversity index of shrub layer is more that that of herb layer and more than that of small tree layer;and the diversity index of herb layer is closer to that of shrub layer in various forest communities;and according to the research findings,puts forward some feasible suggestions on the future operation direction of Guandishan Forest District.
出处
《科技情报开发与经济》
2011年第33期177-179,共3页
Sci-Tech Information Development & Economy
关键词
关帝山林区
森林群落
物种多样性
丰富度指数
多样性指数
Guandishan Forest District
forest community
species diversity
richness index
diversity index
