Groundwater over-exploitation is a major problem in groundwater development, utilization and protection. At present, the area of shallow groundwater over-exploitation in the High-tech Zone is 76 km^(2). In this study,...Groundwater over-exploitation is a major problem in groundwater development, utilization and protection. At present, the area of shallow groundwater over-exploitation in the High-tech Zone is 76 km^(2). In this study, the system and mechanism construction, engineering measure construction, and control effect of national comprehensive control project of groundwater over-exploitation areas in the High-tech Zone in 2020 were evaluated, and the comprehensive control of groundwater over-exploitation in the High-tech Zone in the year was summarized to provide effective basis for the continuous implementation of comprehensive control of groundwater over-exploitation. At the same time, the water-saving and exploitation reduction effect and generalizability of different measures were studied to provide useful reference for other over-exploitation areas.展开更多
The basic situation and formation mechanism of hot spring in Liaocheng were introduced,and its utilization value as well as exploitation and utilization status were also analyzed in this study,which provided strategie...The basic situation and formation mechanism of hot spring in Liaocheng were introduced,and its utilization value as well as exploitation and utilization status were also analyzed in this study,which provided strategies for exploitation and utilization of hot spring in Liaocheng.展开更多
The ecosystem and biodiversity conservation plan in progress in Hiroshima City was reviewed. Hiroshima City had prospered as a castle town, but severely suffered from A bomb damage at the end of World War II. Since th...The ecosystem and biodiversity conservation plan in progress in Hiroshima City was reviewed. Hiroshima City had prospered as a castle town, but severely suffered from A bomb damage at the end of World War II. Since then, Hiroshima City performed greenery activities with restoration and planted trees in public facilities. At present, Hiroshima City is promoting a 3rd tree planting campaign. As part of this campaign, the master plan of greenery of Hiroshima City is being laid. This plan aims not only at beautification in city area but also at ecosystem and biodiversity conservation in expanded city areas. In this paper, we report on the development of the situation in Hiroshima City since the end of World War II and the conservation planning of greenery which, for the most part, concerns zoning.展开更多
Coastal zones play a major role in the conservation of marine ecosystems and the sustainable use of resources not only because of their special geographical environment but also because of their high temporal and spat...Coastal zones play a major role in the conservation of marine ecosystems and the sustainable use of resources not only because of their special geographical environment but also because of their high temporal and spatial variability. With the development of urbaniza- tion, the exploitation and utilization of coasts have become important issues in the debate. To evaluate variations in the intensity of the land resource exploitation of coastal zones, an in- dex-based model has been proposed in this paper, and coastal Vietnam has been established as the study area. The model is based on four normalized indexes to realize rapid evaluation of the spatial distribution of the exploitative intensity after zoning. The model was established to characterize the different exploitative intensities in different segments of the coast and to graphically present a sequence of decision choices for decision-makers. The results are as follows. （1） The simplicity and rapidity of the index operations can address the fast-changing characteristics of coastal exploitation and meet the desired precision. （2） The choices of the landward buffers fit well with the banded characteristics of the coastal zone. The buffers are horizontally divided into equidistant subregions, which can quantify the spatial differentiation of the exploitative intensity along the coast and perpendicular to the coast. （3） The average exploitative intensity is low, and the proportion of area that is to be exploited accounts for approximately 50%.Considering its spatial variation from north to south, the land exploitative intensity in the north is higher than that in the south. Compared to the intensity of land re- source exploitation in the 20 km and 10 km buffers, the land exploitative intensity in the 5 km buffer is higher. The state of the intensity of land resource exploitation and how it can be used by stakeholders to manage coastal resources are then discussed.展开更多
文摘Groundwater over-exploitation is a major problem in groundwater development, utilization and protection. At present, the area of shallow groundwater over-exploitation in the High-tech Zone is 76 km^(2). In this study, the system and mechanism construction, engineering measure construction, and control effect of national comprehensive control project of groundwater over-exploitation areas in the High-tech Zone in 2020 were evaluated, and the comprehensive control of groundwater over-exploitation in the High-tech Zone in the year was summarized to provide effective basis for the continuous implementation of comprehensive control of groundwater over-exploitation. At the same time, the water-saving and exploitation reduction effect and generalizability of different measures were studied to provide useful reference for other over-exploitation areas.
文摘The basic situation and formation mechanism of hot spring in Liaocheng were introduced,and its utilization value as well as exploitation and utilization status were also analyzed in this study,which provided strategies for exploitation and utilization of hot spring in Liaocheng.
文摘The ecosystem and biodiversity conservation plan in progress in Hiroshima City was reviewed. Hiroshima City had prospered as a castle town, but severely suffered from A bomb damage at the end of World War II. Since then, Hiroshima City performed greenery activities with restoration and planted trees in public facilities. At present, Hiroshima City is promoting a 3rd tree planting campaign. As part of this campaign, the master plan of greenery of Hiroshima City is being laid. This plan aims not only at beautification in city area but also at ecosystem and biodiversity conservation in expanded city areas. In this paper, we report on the development of the situation in Hiroshima City since the end of World War II and the conservation planning of greenery which, for the most part, concerns zoning.
基金National Natural Science Foundation of China,No.41421001
文摘Coastal zones play a major role in the conservation of marine ecosystems and the sustainable use of resources not only because of their special geographical environment but also because of their high temporal and spatial variability. With the development of urbaniza- tion, the exploitation and utilization of coasts have become important issues in the debate. To evaluate variations in the intensity of the land resource exploitation of coastal zones, an in- dex-based model has been proposed in this paper, and coastal Vietnam has been established as the study area. The model is based on four normalized indexes to realize rapid evaluation of the spatial distribution of the exploitative intensity after zoning. The model was established to characterize the different exploitative intensities in different segments of the coast and to graphically present a sequence of decision choices for decision-makers. The results are as follows. （1） The simplicity and rapidity of the index operations can address the fast-changing characteristics of coastal exploitation and meet the desired precision. （2） The choices of the landward buffers fit well with the banded characteristics of the coastal zone. The buffers are horizontally divided into equidistant subregions, which can quantify the spatial differentiation of the exploitative intensity along the coast and perpendicular to the coast. （3） The average exploitative intensity is low, and the proportion of area that is to be exploited accounts for approximately 50%.Considering its spatial variation from north to south, the land exploitative intensity in the north is higher than that in the south. Compared to the intensity of land re- source exploitation in the 20 km and 10 km buffers, the land exploitative intensity in the 5 km buffer is higher. The state of the intensity of land resource exploitation and how it can be used by stakeholders to manage coastal resources are then discussed.
