西宁市南山引进树种适应性评价指标体系的构建与应用

Construction and application of adaptability evaluation indicator system of introduced tree species on South Mountain of Xining

为了解青海省西宁市南山引进树种在该地区环境的综合适应能力,从而为西宁市南山人工林建设选择适宜的树种,根据南山的自然环境条件和各引进树种生长发育状况,以树种的生长势、繁殖能力、抗病虫害能力、保存率、干梢程度五项指标为基础,应用层次分析法和灰色关联度模型构建了引进树种适应性评价指标体系,并对各树种适应性进行了总体评价,筛选出了适宜西宁市南山推广种植的国外树种5种,省外树种4种,乡土树种9种。筛选的树种为下一步南山的绿化工程提供了优良的材料。

In order to understand comprehensive adaptive capacity of introduced tree species on South Mountain of Xining and select suitable tree species for artificial forest construction,on the basis of natural conditions and growing development condition of introduced tree species,analytic hierarchy process（ AHP） and the grey correlative degree model were used to establish adaptability evaluation indicator system of introduced tree species based on five indexes,growth vigor,reproduction capacity,the ability to resist plant diseases and insect pests,preservation rates,the degree of dry tip of branch and the tree species adaptability were evaluated. Five exotic tree species,4 other provinces tree species and 9 native tree species are recommended which are suitable for panting on the South Mountain of Xining. Tree species selected are better material for further green project on South Mountain.