三岔子林业局森林生态功能评价

Evaluation of Forest Ecological Function of Sanchazi Forestry Bureau

本文利用三岔子林业局2018年森林资源调查小班数据库,对乔木林小班森林生态功能进行了评价。结果表明:三岔子林业局森林生态功能指数平均值为0.60,森林生态功能评价良好。不同林分类型森林生态功能由强到弱分别为阔叶混交林>针阔混交林>针叶混交林>纯林。不同龄组森林生态功能由强到弱分别为近熟林>中龄林>成熟林>过熟林>幼龄林。优势树种蒙古栎、春榆和白桦的小班森林生态功能较好。

In this paper,the forest ecological function of arboreal forest subcompartment was evaluated by using the subcompartment database of the forest resources survey of Sanchazi Forestry Bureau in 2018.The results showed that the average value of the forest ecological function index of Sanchazi Forestry Bureau was 0.60,and the evaluation of the forest ecological function was good.The forest ecological function of different stand types was as follows:broad-leaved mixed forest>coniferous and broad-leaved mixed forest>coniferous mixed forest>pure forest.The forest ecological function of different age groups was as follows:near-mature forest>half-mature forest>mature forest>overmature forest>young forest.The dominant tree species with the better forest ecological function of the subcompartment were Quercus mongolica,Ulmus davidiana var.japonica and Betula platyphylla.