内蒙古大青山国家级自然保护区全民所有森林资源状况分析

Analysis of the State-Owned Forest Resources in the Daqing Mountains National Nature Reserve in Inner Mongolia

文章以2022年内蒙古大青山国家级自然保护区全民所有森林资源专项调查数据为基础,分析森林资源数量和质量,旨在为保护区全民所有森林资源经营管理提供数据支撑。结果表明:保护区森林覆盖率为42.85%,森林资源建群树种相对丰富,主要有白桦、油松、柄扁桃、虎榛子和绣线菊;乔木林地、疏林地和灌木林地均以天然林为主;乔木林多集中在郁闭度0.30~0.69之间,且Ⅳ~Ⅴ地位级分布较多;乔木林地平均每公顷蓄积量和平均每公顷生长量均低于自治区平均水平,天然乔木林地郁闭度、灌木林地覆盖度较低,混交林比重小,森林资源质量总体不高,提升空间较大。

This article is based on the special survey data of state-owned forest resources in the Daqing Mountains National Nature Reserve,Inner Mongolia in 2022,analyzing the quantity and quality of forest resources to provide data support for the management of state-owned forest resources in the reserve.The results show that the forest coverage rate of the reserve is 42.85%,and the main tree species that make up the forest resources are relatively abundant,including Betula platyphylla,Pinus tabulaeformis,Amygdalus pedunculata,Corylus heterophylla,and Spiraea salicifolia.Both the arbor land and the shrub land are mainly composed of natural forests.Most of the arbor forests are concentrated in the closure degree of 0.30 to 0.69,and the distribution of the IV-V status levels is relatively high.The average volume per hectare of arbor land and the average growth per hectare are both lower than the average level of the autonomous region.The closure degree of natural arbor land and the coverage degree of shrub land are relatively low,and the proportion of mixed forests is small.The overall quality of forest resources is not high,and there is a large room for improvement.