[Objective] With the background of dramatic changes in land use patterns,the aim was to explore the ecosystem services value of Fei County based on RS and GIS.[Method] Ecological changes in the environment can bring c...[Objective] With the background of dramatic changes in land use patterns,the aim was to explore the ecosystem services value of Fei County based on RS and GIS.[Method] Ecological changes in the environment can bring changes in economic value expressed quantitatively by ecosystem service value （ESV）.According to modified ESV equivalency factor tables and three periods of interpreted TM remote sensing images in 1990,2000 and 2009,this paper calculated the total ESV in Fei County,Shandong Province,China and analyzed the relationship between ESV and the land-use changes at last.[Result] The results showed that the total ESV of the study area decreased from 2.144×109 yuan in 1990,2.139×109 yuan in 2000,and at last to 2.098×109 yuan in 2009 as the overall study area land use pattern changed dramatically,in which the built-up land increased by 23％,while the cropland and forest were constantly on the decrease.[Conclusion] The research provides theoretical support for the construction of high efficient ecological economic zone and sustainable development of the region.展开更多
Wetlands are highly productive natural ecosystems, providing valuable goods and services. There is growing interest in transferring ecosystem service value from the existing wetlands studied to other wetlands ecosyste...Wetlands are highly productive natural ecosystems, providing valuable goods and services. There is growing interest in transferring ecosystem service value from the existing wetlands studied to other wetlands ecosystems at a large geographic scale. The benefit transfer method uses the known values from wetlands to predict the value of other wetland sites. This methodology requires only limited time and resources. The present study calculated the value of the ecological services provided by lake and marsh wetlands in China in terms of biodiversity indices, water quality indices and economic indices. Basic data on wetlands were obtained through remote sensing images. The results show that: 1) The total ecosystem service value of the lake and marsh wetlands in 2008 was calculated to be 8.1841 × 1010 United States Dollars(USD), with the marsh and lake wetlands contributing 5.6329 × 1010 and 2.5512 × 1010 USD, respectively. Values of marsh ecosystem service were concentrated in Heilongjiang Province(2.5516 × 1010 USD), Qinghai Province(1.2014 × 1010 USD), and Inner Mongolia Autonomous Region(1.1884 × 1010 USD). The value of the lakes were concentrated in Tibet Autonomous Region(6.223 × 109 USD), Heilongjiang(5.810 × 109 USD), and Qinghai(5.500 × 109 USD). 2) Waste treatment and climate regulation services contributed to 26.29% and 24.74% respectively, of the total ecosystem service value of the marsh wetlands. Hydrological regulation and waste treatment contributed to 41.39% and 32.75%, respectively, of the total ecosystem service value of the lake wetlands. 3) The total ecological service value of the lake and marsh wetlands was 54.64% of the total service value of natural grassland ecosystems and 30.34% of the total service value of forests ecosystems in China.展开更多
The responses of spatiotemporal variation of ecosystem service values (ESVs) to landscape pattern from 1985 to 2005 in a typical Karst area of the northwest Guangxi Zhuang Autonomous Region,China,were examined us-ing ...The responses of spatiotemporal variation of ecosystem service values (ESVs) to landscape pattern from 1985 to 2005 in a typical Karst area of the northwest Guangxi Zhuang Autonomous Region,China,were examined us-ing remote sensing and geographic information system techniques in this paper.The total ecosystem service values de-clined significantly from 1985 to 1990,and then increased slowly from 1990 to 2005,almost equaled to the 1985 level.The ecosystem service values tended to decline from the west to the east and from mountainous regions to peak-cluster depression areas in 1985,1990,2000 and 2005 respectively.During the period from 1985 to 2005,the ecosystem ser-vice values have increased in the middle and eastern parts of the study area.Landscape pattern indices,such as total area,largest patch index,contagion,aggregative index,effective mesh and proportion of like adjacencies,are significantly correlated with ecosystem service values.This suggests that ecosystem service values tend to increase with the growth of patch area and patch connectivity.However,there are negative correlations between ecosystem service values and landscape pattern indices,such as division index and patch richness.It indicates that ecosystem service values decrease with patch fragmentation and patch size shrinkage.The ecosystem conditions in the typical Karst area have been improved because of the control measures of rocky desertification.It is important to protect key landscape types,such as woodland,shrub and grassland,and to increase patch size and connectivity to avoid further fragmentation.Furthermore,it is necessary to reduce disturbances to ensure the growth of ecosystem service values and to facilitate the sustainable development in this region.展开更多
As a very important part of the urban ecosystem,the urban green space system plays an active role in maintaining the urban ecosystem stability,providing ecosystem services,and improving the quality of the urban enviro...As a very important part of the urban ecosystem,the urban green space system plays an active role in maintaining the urban ecosystem stability,providing ecosystem services,and improving the quality of the urban environment.In order to deal with the problems brought about by the deterioration of the urban ecological environment,it is necessary to study and analyze the spatial distribution pattern,evolutionary characteristics and ecosystem services of urban green space to maximize its ecological benefits and comprehensive functions.In this study,we took Beijing urban area as an example,and based on the spatial distribution data of urban green space and remote sensing data,we first calculated the urban green space type transition matrix,landscape pattern index and ecosystem services.Then,we analyzed the changes in urban green space landscape patterns,ecosystem services and their spatial distributions from 2000 to 2020,and studied the interactive relationships between landscape changes and changes in ecosystem services.The results showed three key findings.(1)Beijing’s urban green space construction has achieved remarkable results from 2000 to 2020.The area of green space has increased by 77.41%,mainly from cultivated land and construction land.(2)From 2000 to 2020,the amounts of dust retention,SO_(2) absorption,NO_(2) absorption,cooling and humidification,carbon fixation and oxygen release,and rainwater runoff reduction in Beijing’s urban green space have shown continuous increases in general.(3)There is a close relationship between urban green space landscape changes and green space ecosystem services,and total area(TA)has the highest correlation with ecosystem services.Except for rainwater runoff reduction,the correlation coefficients between TA and ecosystem services are all higher than 0.85.This research can provide theoretical guidance for optimizing Beijing’s green space and determining how to maximize the effect of green space for improving the ecological environment,and ultimately provide a scientific basis for the construction of Beijing’s ecological environment.展开更多
基金supported by Fei county land and resources bureau of Shandong province
文摘[Objective] With the background of dramatic changes in land use patterns,the aim was to explore the ecosystem services value of Fei County based on RS and GIS.[Method] Ecological changes in the environment can bring changes in economic value expressed quantitatively by ecosystem service value （ESV）.According to modified ESV equivalency factor tables and three periods of interpreted TM remote sensing images in 1990,2000 and 2009,this paper calculated the total ESV in Fei County,Shandong Province,China and analyzed the relationship between ESV and the land-use changes at last.[Result] The results showed that the total ESV of the study area decreased from 2.144×109 yuan in 1990,2.139×109 yuan in 2000,and at last to 2.098×109 yuan in 2009 as the overall study area land use pattern changed dramatically,in which the built-up land increased by 23％,while the cropland and forest were constantly on the decrease.[Conclusion] The research provides theoretical support for the construction of high efficient ecological economic zone and sustainable development of the region.
基金Under the auspices of Forestry Public Interest Research Program(No.201204201)National Natural Science Foundation of China(No.41171415)
文摘Wetlands are highly productive natural ecosystems, providing valuable goods and services. There is growing interest in transferring ecosystem service value from the existing wetlands studied to other wetlands ecosystems at a large geographic scale. The benefit transfer method uses the known values from wetlands to predict the value of other wetland sites. This methodology requires only limited time and resources. The present study calculated the value of the ecological services provided by lake and marsh wetlands in China in terms of biodiversity indices, water quality indices and economic indices. Basic data on wetlands were obtained through remote sensing images. The results show that: 1) The total ecosystem service value of the lake and marsh wetlands in 2008 was calculated to be 8.1841 × 1010 United States Dollars(USD), with the marsh and lake wetlands contributing 5.6329 × 1010 and 2.5512 × 1010 USD, respectively. Values of marsh ecosystem service were concentrated in Heilongjiang Province(2.5516 × 1010 USD), Qinghai Province(1.2014 × 1010 USD), and Inner Mongolia Autonomous Region(1.1884 × 1010 USD). The value of the lakes were concentrated in Tibet Autonomous Region(6.223 × 109 USD), Heilongjiang(5.810 × 109 USD), and Qinghai(5.500 × 109 USD). 2) Waste treatment and climate regulation services contributed to 26.29% and 24.74% respectively, of the total ecosystem service value of the marsh wetlands. Hydrological regulation and waste treatment contributed to 41.39% and 32.75%, respectively, of the total ecosystem service value of the lake wetlands. 3) The total ecological service value of the lake and marsh wetlands was 54.64% of the total service value of natural grassland ecosystems and 30.34% of the total service value of forests ecosystems in China.
基金Under the auspices of National Natural Science Foundation of China (No.31000223,41071340)National Key Technology Research and Development Program of China (No.2009BADC6B008)Western Light Program of Talent Cultivation of Chinese Academy of Sciences
文摘The responses of spatiotemporal variation of ecosystem service values (ESVs) to landscape pattern from 1985 to 2005 in a typical Karst area of the northwest Guangxi Zhuang Autonomous Region,China,were examined us-ing remote sensing and geographic information system techniques in this paper.The total ecosystem service values de-clined significantly from 1985 to 1990,and then increased slowly from 1990 to 2005,almost equaled to the 1985 level.The ecosystem service values tended to decline from the west to the east and from mountainous regions to peak-cluster depression areas in 1985,1990,2000 and 2005 respectively.During the period from 1985 to 2005,the ecosystem ser-vice values have increased in the middle and eastern parts of the study area.Landscape pattern indices,such as total area,largest patch index,contagion,aggregative index,effective mesh and proportion of like adjacencies,are significantly correlated with ecosystem service values.This suggests that ecosystem service values tend to increase with the growth of patch area and patch connectivity.However,there are negative correlations between ecosystem service values and landscape pattern indices,such as division index and patch richness.It indicates that ecosystem service values decrease with patch fragmentation and patch size shrinkage.The ecosystem conditions in the typical Karst area have been improved because of the control measures of rocky desertification.It is important to protect key landscape types,such as woodland,shrub and grassland,and to increase patch size and connectivity to avoid further fragmentation.Furthermore,it is necessary to reduce disturbances to ensure the growth of ecosystem service values and to facilitate the sustainable development in this region.
基金The National Natural Science Foundation of China(41971272)The Guangxi Science and Technology Major Project(AA20161002-3)The Strategic Priority Research Program of Chinese Academy of Sciences(XDA20020402)。
文摘As a very important part of the urban ecosystem,the urban green space system plays an active role in maintaining the urban ecosystem stability,providing ecosystem services,and improving the quality of the urban environment.In order to deal with the problems brought about by the deterioration of the urban ecological environment,it is necessary to study and analyze the spatial distribution pattern,evolutionary characteristics and ecosystem services of urban green space to maximize its ecological benefits and comprehensive functions.In this study,we took Beijing urban area as an example,and based on the spatial distribution data of urban green space and remote sensing data,we first calculated the urban green space type transition matrix,landscape pattern index and ecosystem services.Then,we analyzed the changes in urban green space landscape patterns,ecosystem services and their spatial distributions from 2000 to 2020,and studied the interactive relationships between landscape changes and changes in ecosystem services.The results showed three key findings.(1)Beijing’s urban green space construction has achieved remarkable results from 2000 to 2020.The area of green space has increased by 77.41%,mainly from cultivated land and construction land.(2)From 2000 to 2020,the amounts of dust retention,SO_(2) absorption,NO_(2) absorption,cooling and humidification,carbon fixation and oxygen release,and rainwater runoff reduction in Beijing’s urban green space have shown continuous increases in general.(3)There is a close relationship between urban green space landscape changes and green space ecosystem services,and total area(TA)has the highest correlation with ecosystem services.Except for rainwater runoff reduction,the correlation coefficients between TA and ecosystem services are all higher than 0.85.This research can provide theoretical guidance for optimizing Beijing’s green space and determining how to maximize the effect of green space for improving the ecological environment,and ultimately provide a scientific basis for the construction of Beijing’s ecological environment.
