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以湖南省福寿国有林场13年生杉木生态公益林作为研究对象,通过专家咨询,运用层次分析法,选取水土保持与水源涵养、物种多样性、固碳功能、生产力4个方面功能共16个指标,建立杉木生态公益林多功能指标体系,并对其多功能进行评价。结果表明:杉木生态公益林多功能经营评价的4个准则层指标权重由大到小分别为:水土保持与水源涵养(0.547 8)、物种多样性(0.199 7)、固碳功能(0.183 2)、生产力(0.069 3)。杉木生态公益林多功能等级为差的样地比重占83.3%;中等等级的样地只占16.7%;无优、良等级的样地。杉木生态公益林整体多功能水平偏低。影响其多功能充分发挥的主要原因为树种结构单一,林下植被盖度低、林分生物量低。
Taking the 13-year Chinese fir ecological public welfare forest of Hunan Fushou National Forest Farm as the research object, through the expert consultation and the analytic hierarchy process, 16 indicators including 4 functions of soil and water conservation, water conservation, species diversity, carbon sequestration and productivity were selected, The establishment of multi-function index system of Cunninghamia lanceolata ecological public welfare forest and its multi-functional evaluation. The results showed that the weights of the four guideline indicators of multi-functional management in the Chinese fir ecological public welfare forest were as follows: water and soil conservation and water conservation (0.547 8), species diversity (0.199 7), carbon sequestration function (0.183 2) , Productivity (0.069 3). Cunninghamia lanceolata forest occupies 83.3% of the plots with poor pluripotency; only 16.7% of middle-class plots have plots; Chinese fir forest ecological multi-functional forest overall low level. The main reasons that affect its multi-function to give full play to are the single tree species structure, the low cover of understory vegetation and the low stand biomass.