湖北省农田生态系统服务价值测算初探

Estimation of Farmland Ecosystem Service Value in Hubei Province

采用生态系统服务价值估算方法 ,引用中国生态系统生态服务价值当量因子,依据湖北省生态生产性土地的作物面积、产量和价格,对湖北省农田生态系统的耕地服务价值进行测算。通过计算得出,湖北省耕地服务价值分别为气体调节1 046元/(hm2.a)、气候调节1 863元/(hm2.a)、水源涵养3 055元/(hm2.a)、废物处理3 432元/(hm2.a)、食物生产1 486元/(hm2.a)、生物多样性保护2 093元/(hm2.a)、原材料供应209元/(hm2.a)、娱乐文化21元/(hm2.a),合计13 205元/(hm2.a)。综观已有研究,对耕地服务价值的年度测算结果可作为确定农业生态补偿上限的依据,对当量因子的选择有待精确。

Taking the estimation method of ecosystem services value and citing the equivalent factor of ecosystem services, the arable farmland ecosystem services value of Hubei province were estimated according to the ecological productive land crop area, yield and price. The results showed that, the service value of arable farmland in Hubei province were as follows （Unit：hm2/a）： gas regulation 1 046yuan, climate regulation 1 863 yuan, water conservation 3 055 yuan, waste treatment 3 432 yuan, food production 1 486 yuan, biodiversity conservation 2 093 yuan, raw material supply 209 yuan, entertainment culture 21 yuan, total 13 205 yuan. According to the existed researches, the estimation results of arable farmland service value could be used as a basis for agro-ecological compensation limitation, the equivalent factors need to be accurate.