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基于实地调研和监测,依据《森林生态系统服务功能评估规范》构建评价指标体系,参照国内权威部门公布的价格参数,运用市场价值法、影子工程法、机会成本法等方法定量评估了我国砒砂岩区沙棘林生态服务价值。结果表明:2010年砒砂岩区沙棘林涵养水源、保育土壤、固碳制氧、积累营养物质、净化大气环境、森林防护、生物多样性保护生态服务总价值为91.03×108元,其中保育土壤价值最高,其次为生物多样性保护和涵养水源价值,三者价值量分别为56.66、17.69、6.41×108元,占生态服务功能总价值的88.71%。从研究区域来看,准格尔旗的生态服务功能价值最高,其次是东胜市和府谷县,三者价值量分别为28.41、21.21、14.21×108元,占总服务功能价值的70.12%。研究还发现,生态服务单位面积价值最高的是伊金霍洛旗,最低的是达拉特旗。砒砂岩区沙棘林单位面积生态服务价值为52848.83元.hm-2,高于全国森林单位面积生态服务价值51333.33元.hm-2的水平。
Based on the field investigation and monitoring, the evaluation index system was constructed based on the “Evaluation Norms of Forest Ecosystem Services”, with reference to the price parameters published by domestic authorities, the methods of market value method, shadow engineering method and opportunity cost method were used to quantitatively evaluate the distribution of China’s sandstone Regional seabuckthorn ecological service value. The results showed that in 2010, the total value of seabuckthorn reserves of water conservation, soil conservation, carbon sequestration, nutrient accumulation, atmosphere purification, forest protection and biodiversity conservation and ecology in the sandstone area was 91.03 × 108 Yuan, The highest, followed by the conservation and conservation of water resources value of biological diversity, the three values were 56.66,17.69,6.41 × 108 yuan, accounting for 88.71% of the total value of ecological service functions. From the research area, Zhunge’er Banner has the highest ecological service function value, followed by Dongsheng City and Fugu County. The three values are respectively 28.41, 21.21 and 14.21 × 108 Yuan, accounting for 70.12% of the total service function value. The study also found that the highest value of ecological service unit area is Yijinhuoluo, the lowest is Dalat Banner. The ecological service value per unit area of Hippophae rhamnoides in the sandstone area is 52848.83 yuan.hm-2, which is higher than the level of the ecological service value of 51333.33 yuan.hm-2 per unit area of forest in the country.