This study examined regional differences in ecosystem services for the Da Hinggan Mountains(DHM),China.A correction index was constructed based on ten-year average net primary productivity(NPP)data.A new equivalent fa...This study examined regional differences in ecosystem services for the Da Hinggan Mountains(DHM),China.A correction index was constructed based on ten-year average net primary productivity(NPP)data.A new equivalent factor table that was suitable for the assessment of wetlands in the DHM was formed by using the expert weight determination method(EWDM).An evaluation model was established for evaluating the ecosystem service value(ESV)of wetlands in the DHM.The results show that in 2020,the total ESV of wetlands reached 93361×10^(6) USD,with the forest swamp and marsh ecosystems contributing the most.From the perspective of value composition,regulating services and supporting services are the main service functions of wetlands in the DHM.From 2010 to2020,ESV provided by wetlands increased by 4337×10^(6) USD/yr in the DHM.The value of forest swamp and peatland ecosystems increased by 18.6%and 12.7%,respectively,whereas the value of swamp,shrub swamp,and marsh decreased.The research results are of significance for contributing to local government performance evaluation and determining financial compensation for the provision of wetland ecosystem services.展开更多
The index system of regional industrial structure is set up. There are two delaminated levels, the top layer evaluation and the bottom one on which the top evaluation is based. That is the characteristics of the evalu...The index system of regional industrial structure is set up. There are two delaminated levels, the top layer evaluation and the bottom one on which the top evaluation is based. That is the characteristics of the evaluation of regional industry structure. The distinction between the two evaluation levels involves the two essentially different two index weights, the unsscertalned comprehensive evaluating model together with division weight are used in the bottom evaluation, and expert weight in the top layer evaluation. In view of the evaluation of regional industrial structure, a sort of comparatively reasonable utility evaluation model is set up. Take the case of Beijing and other six provinces and cities is positively analyzed, which reflects the actual regional industrial structure.展开更多
基金Under the auspices of the National Natural Science Foundation of China(No.U19A2042,U20A2083,42001112)。
文摘This study examined regional differences in ecosystem services for the Da Hinggan Mountains(DHM),China.A correction index was constructed based on ten-year average net primary productivity(NPP)data.A new equivalent factor table that was suitable for the assessment of wetlands in the DHM was formed by using the expert weight determination method(EWDM).An evaluation model was established for evaluating the ecosystem service value(ESV)of wetlands in the DHM.The results show that in 2020,the total ESV of wetlands reached 93361×10^(6) USD,with the forest swamp and marsh ecosystems contributing the most.From the perspective of value composition,regulating services and supporting services are the main service functions of wetlands in the DHM.From 2010 to2020,ESV provided by wetlands increased by 4337×10^(6) USD/yr in the DHM.The value of forest swamp and peatland ecosystems increased by 18.6%and 12.7%,respectively,whereas the value of swamp,shrub swamp,and marsh decreased.The research results are of significance for contributing to local government performance evaluation and determining financial compensation for the provision of wetland ecosystem services.
基金This project is supported by National Natural Science Foundation of China（60474019）.
文摘The index system of regional industrial structure is set up. There are two delaminated levels, the top layer evaluation and the bottom one on which the top evaluation is based. That is the characteristics of the evaluation of regional industry structure. The distinction between the two evaluation levels involves the two essentially different two index weights, the unsscertalned comprehensive evaluating model together with division weight are used in the bottom evaluation, and expert weight in the top layer evaluation. In view of the evaluation of regional industrial structure, a sort of comparatively reasonable utility evaluation model is set up. Take the case of Beijing and other six provinces and cities is positively analyzed, which reflects the actual regional industrial structure.
