论文部分内容阅读
生物多样性的保持是人工林发展过程中一个倍受关注的焦点问题,本研究选择德宏州的西南桦人工林作为研究对象,在样地调查的基础上,统计分析西南桦人工林的生物多样性状况。结果表明,调查的10块典型样地中,植物种类44~124种。西南桦人工林的群落结构包括单层纯林、单优多层多种林、混交林和林农作物间作等不同类别,并在人工林内记录到部分国家级和省级保护植物种类。通过与德宏州铜壁关自然保护区的天然西南桦林和同处云南热区的西双版纳普文试验林场西南桦人工林相对比,表明德宏州营建的西南桦人工林显现出较好的生物多样性恢复能力。
The conservation of biodiversity is a focus of attention in the process of plantation development. In this study, the Betula alnoides plantation in Dehong prefecture was selected as the research object. Based on the site survey, the biological characteristics of Betula alnoides plantation Diversity status. The results showed that in the 10 typical plots investigated, there were 44 ~ 124 plant species. The community structure of Betula alnoides plantation includes different types of single-layer pure forest, single multi-layer multi-layer forest, mixed forest and forest crop intercropping, and some national and provincial protected plant species were recorded in the plantation. Compared with the natural southwest birch forest in Dehua Tongbiguan Nature Reserve and the Betula alnoides plantation in the Phewen pilot farm in Xishuangbanna, Yunnan in the same hot area, indicating that the Dendrocalamus chinensis planted in Dehong prefecture shows a better organism Diversity resilience.