中文摘要：

基于生态服务价值理论,以遥感数据为基础,以养分损失（N、P、K、有机质含量）、水分损失、土地损失、泥沙滞留损失及泥沙淤积损失等5种损失为度量指标,分别估算南方红壤侵蚀典型区——长汀县1988、2000和2007年3个时期土壤侵蚀经济损失的货币值。结果显示,3年中土壤侵蚀的经济损失相当于同期全县农林牧副渔总产值的31.9%、17.8%和7.02%,呈明显下降态势,特别是2000—2007年间下降更为明显,说明研究区土壤整治成效明显。从损失构成看,土壤养分损失一直占经济损失的97.33%以上,说明土壤侵蚀直接导致土地生产力下降,进而制约农业发展。

英文摘要：

Based on the theories of ecological service value and the RS data,this study selected nutrients loss（including N,P,K and organic matter）,water loss,land loss,sediment retention and accumulation as the measurement indexes,and estimated the value losses of soil erosion of Changting county in 1988,2000 and 2007 respectively.The results showed that the total economic loss value in the three years descended obviously,which corresponded to 31.9%,17.8% and 7.02% of the total agriculture output value in the same year.It especially descended by a big margin from 2000 to 2007,indicating that the erosion control in Changting County had achieved remarkable success.With regard to the components of the value losses,the soil nutrient loss had been taking over 97.33% of the economic losses,which indicated that the soil erosion caused the decline of land productivity,thus limiting the agricultural development.