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采用定位观测和抽样调查方法，对大兴安岭水湿地改造前后的土壤理化性质、植物群落特征进行了系统调查。通过分析发现，经改造后的水湿地土壤主要理化性质及肥力的变化均利于落叶松生长；植物群落种数呈现增加、减少、再增加的变化规律，造林１０ａ后，草本植物大量减少，乔、灌木少量增加，植物群落向以落叶松为主的森林群落发展。这种变化对当前本地区经济发展有积极的一面，但却对区域生物多样性及生态环境产生不利影响。因此，对大兴安岭水湿地应以保护和保护性利用为主，不宜大规模改造造林
Using the method of location observation and sampling, the physical and chemical properties and plant community characteristics of soil before and after the transformation of the Daxinganling wetland were systematically investigated. The results showed that the main physical and chemical properties and fertility changes of the modified wetland soil were beneficial to the growth of larch. The species number of the plant community increased, decreased and then increased. After 10 years of afforestation, the number of herbaceous plants decreased significantly, A small increase of shrubs, plant communities to larch-dominated forest community development. This change has a positive impact on the current economic development in the region, but it has an adverse effect on the regional biodiversity and the ecological environment. Therefore, the Daxinganling water and wetland should be based on the protection and utilization, should not be large-scale reforestation