Over the past several decades,large scale of tidal flat reclamation developed fast along the Chinese coastline.Tidal flat reclamation can earn profits for local economy but also produce significant negative influences...Over the past several decades,large scale of tidal flat reclamation developed fast along the Chinese coastline.Tidal flat reclamation can earn profits for local economy but also produce significant negative influences on marine ecosystems.By using relative indexes of landscape science,this article makes quantitative research on reclamation indexes of Zhejiang Province,China from1990to2000in a macro-region perspective,and the results shows that:(1)within20years,the total area of reclamation in Zhejiang Province had reached108760ha,and the reclamation area of Ningbo city was the largest while Jiaxing city is the smallest;(2)the patch area,quantity,density and variable coefficients of all types of lands were markedly different,and lands in different regions also differed distinctly;(3)average form index and fragmentation index of patch of lands of different types and functions were positively correlated,and the indexes of Taizhou city and Ningbo city were relatively high while Jiaxing city and Shaoxing city were lower;(4)under the influence of factors like topographic conditions,develop needs,human activities and so on,the degree of aggregation of the types of reclamation was relatively high;(5)because of the differences in reclamation area,coast length,land type and so on,the average intensity index and diversity index of the all coastal cities were different distinctly.展开更多
Qingtian County of Zhejiang Province, China has maintained the traditional rice-fish agriculture for about 2,000 years and formed exceptional cultural heritage based on this kind of production mode, so it was ed by FA...Qingtian County of Zhejiang Province, China has maintained the traditional rice-fish agriculture for about 2,000 years and formed exceptional cultural heritage based on this kind of production mode, so it was ed by FAO as a pilot site for the rice-fish agricultural heritage systems in 2005. This research has applied the indicators of ecological footprint and biocapacity to monitor the environmental conditions of Qingtian County, aiming to find the impact that the traditional agricultural production mode and the local inhabitants lifestyle have placed on the local environmental conditions as well as the role they have played in maintaining ecological balance, cultural inheritance and regional sustainable development. Results show that Qingtian County is characterized by a nearly breakeven total ecological balance, as opposed to Zhejiang Province, the world and other agricultural regions. However, compared with another rice-fish agricultural region, Congjiang County which enjoys a considerable ecological reserve, Qingtian County has consumed a greater amount of environmental resources. Specifically, about half of the ecological footprint of Qingtian County can be attributed to the cropland （50.8%） while the CO2 area only accounts for 11.2%, which is dramatically different from that of the modern industrialized regions. And a vast of percentage of energy is caused by the combustion of fuelwood which not only requires the land to absorb the CO2 emission it has generated but also occupies the forest where it has been chopped.展开更多
Ecological compensation is becoming one of key and multidiscipline issues in the field of resources and environmental management. Considering the change relation between gross domestic product (GDP) and ecological cap...Ecological compensation is becoming one of key and multidiscipline issues in the field of resources and environmental management. Considering the change relation between gross domestic product (GDP) and ecological capital (EC) based on remote sensing estimation, we construct a new quantitative estimate model for ecological compensation, using county as study unit, and determine standard value so as to evaluate ecological compensation from 2001 to 2004 in Zhejiang Province, China. Spatial differences of the ecological compensation were significant among all the counties or districts. This model fills up the gap in the field of quantitative evaluation of regional ecological compensation and provides a feasible way to reconcile the conflicts among benefits in the economic, social, and ecological sectors.展开更多
基金supported by the National Natural Science Foundation of China(No.U1609203,41471004)the K.C.Wong Magna Fund of Ningbo University
文摘Over the past several decades,large scale of tidal flat reclamation developed fast along the Chinese coastline.Tidal flat reclamation can earn profits for local economy but also produce significant negative influences on marine ecosystems.By using relative indexes of landscape science,this article makes quantitative research on reclamation indexes of Zhejiang Province,China from1990to2000in a macro-region perspective,and the results shows that:(1)within20years,the total area of reclamation in Zhejiang Province had reached108760ha,and the reclamation area of Ningbo city was the largest while Jiaxing city is the smallest;(2)the patch area,quantity,density and variable coefficients of all types of lands were markedly different,and lands in different regions also differed distinctly;(3)average form index and fragmentation index of patch of lands of different types and functions were positively correlated,and the indexes of Taizhou city and Ningbo city were relatively high while Jiaxing city and Shaoxing city were lower;(4)under the influence of factors like topographic conditions,develop needs,human activities and so on,the degree of aggregation of the types of reclamation was relatively high;(5)because of the differences in reclamation area,coast length,land type and so on,the average intensity index and diversity index of the all coastal cities were different distinctly.
基金supported by grants from the International Exchange and Cooperative Project,Ministry of Agriculture,the Globally Important Agricultural Heritage Systems(GIAHS)Program initiated by FAO,and MDG Program of the Spanish government
文摘Qingtian County of Zhejiang Province, China has maintained the traditional rice-fish agriculture for about 2,000 years and formed exceptional cultural heritage based on this kind of production mode, so it was ed by FAO as a pilot site for the rice-fish agricultural heritage systems in 2005. This research has applied the indicators of ecological footprint and biocapacity to monitor the environmental conditions of Qingtian County, aiming to find the impact that the traditional agricultural production mode and the local inhabitants lifestyle have placed on the local environmental conditions as well as the role they have played in maintaining ecological balance, cultural inheritance and regional sustainable development. Results show that Qingtian County is characterized by a nearly breakeven total ecological balance, as opposed to Zhejiang Province, the world and other agricultural regions. However, compared with another rice-fish agricultural region, Congjiang County which enjoys a considerable ecological reserve, Qingtian County has consumed a greater amount of environmental resources. Specifically, about half of the ecological footprint of Qingtian County can be attributed to the cropland （50.8%） while the CO2 area only accounts for 11.2%, which is dramatically different from that of the modern industrialized regions. And a vast of percentage of energy is caused by the combustion of fuelwood which not only requires the land to absorb the CO2 emission it has generated but also occupies the forest where it has been chopped.
基金Project (No. 2006AA120101) supported by the Hi-Tech Research and Development Program (863) of China
文摘Ecological compensation is becoming one of key and multidiscipline issues in the field of resources and environmental management. Considering the change relation between gross domestic product (GDP) and ecological capital (EC) based on remote sensing estimation, we construct a new quantitative estimate model for ecological compensation, using county as study unit, and determine standard value so as to evaluate ecological compensation from 2001 to 2004 in Zhejiang Province, China. Spatial differences of the ecological compensation were significant among all the counties or districts. This model fills up the gap in the field of quantitative evaluation of regional ecological compensation and provides a feasible way to reconcile the conflicts among benefits in the economic, social, and ecological sectors.
