In this paper,the water quality of the Xixi Wetland was evaluated and the characteristics of water pollution were described according to the survey data.Based on the status of water quality and its functional requirem...In this paper,the water quality of the Xixi Wetland was evaluated and the characteristics of water pollution were described according to the survey data.Based on the status of water quality and its functional requirements as an urban wetland,biological-ecological countermeasures were suggested.The experimental use of ecological technologies,such as artificial wetlands,ecological aquiculture and artificial floating island,were done in several fish ponds in the Xixi Wetland.Water monitoring results show that the quality of the treated water has improved significantly and the measures to purify the eutrophic water in the wetland have been effective.展开更多
Public education as well as tourism and leisure are the two important functions of national wetland park, and tourist behaviors act as the guiding factor in the national wetland park construction and management.As the...Public education as well as tourism and leisure are the two important functions of national wetland park, and tourist behaviors act as the guiding factor in the national wetland park construction and management.As the first national wetland park in China, Xixi National Wetland Park, located in Hangzhou City, Zhejiang Province, will give constructive instructions to the construction and management of other wetland parks and ecotourism resorts.This paper analyzed the tourist behaviors in Xixi National Wetland Park.By the observation, in-depth interview and questionnaire, the results show that tourists in wetland parks are different from those in the other common destinations, and they are also different from those strict eco-tourists.In fact, the tourists in wetland park have unique characteristics, such as the intense perception to the functions of wetland ecosystem and the environment impact behaviors.Those tourists are preferred to natural landscapes in their motivations and expectations.Wetland landscapes are the main image to those tourists in the Xixi National Wetland Park.Tourist expectation, experience and satisfaction are all critical factors for the success of the planning and management in national wetland parks.Based on the results, some measures for the sustainable development of wetland parks, including to optimize wetland theme landscape and tourism products, to improve tourist facilities and services, to enhance quality of visitor experiences, and to implement total quality management based on tourist characteristics, are given to national wetland park ecotourism.展开更多
The cold-island effect of urban wetlands has received increasing attention in recent years due to its important role in the alleviation of urban heat islands.Hangzhou,a representative rapidly urbanizing city with rich...The cold-island effect of urban wetlands has received increasing attention in recent years due to its important role in the alleviation of urban heat islands.Hangzhou,a representative rapidly urbanizing city with rich wetlands in China,was selected as a case study for researching the changes that the urban wetlands have undergone and their impact on the urban thermal environment.Land surface temperature(LST) was acquired from the thermal infrared data of Landsat 5 Thematic Mapper(TM) images in 1990,1995,2000,2006,and 2010,using the single-channel method.The results are as follows:1) considering the changes in land use,the urban wetlands located to the west of Hangzhou have decreased significantly during 1990–2010 because of rapid urbanization.In the Xixi Wetland,the change in land use was relatively small and most of the water body and vegetation were preserved.However,to the east of the Xixi Wetland,large areas of water body and vegetation have been replaced by built-up land as a result of the urbanization process;2) considering the change in LST,it was found from land surface temperature retrieval that the changing spatial pattern of the thermal field was highly correlated with land use changes.Low temperature regions of the eastern Xixi Wetland were gradually eroded by high temperature regions,and the centroid of the heat island in East Xixi was found to be constantly shifting westward.In addition,the difference in LST between the Xixi Wetland and East Xixi has increased;3) considering the impact factors for this area,land use structure and patch shape were found to have a significant impact on LST,shown by the results of multiple linear stepwise regressions.Increasing the size of the wetlands in urban planning is considered to be the most effective measure in alleviating the urban heat island effect.Moreover,reducing the spatial complexity of landscape patches also contributes to the alleviation of the urban heat island effect.展开更多
By research on wetland water quality and nutrient distribution in sediments of Xixi Wetland,which is the first national wetland park in China,the results indicated that the water quality had been improved especially i...By research on wetland water quality and nutrient distribution in sediments of Xixi Wetland,which is the first national wetland park in China,the results indicated that the water quality had been improved especially in Wuchang Creek and Deep Pond after sediment dredging.The other inspecting points were still bad and belonged to V or worse than V standard of water quality,which would not be qualified for the tourism.The total nitrogen and phosphorus contents were low in the surface sediments(0-20 cm) of wetland.The average contents of total nitrogen and phosphorus were 1.79 g·kg-1 and 0.80 g·kg-1 respectively.Spatially,the total nitrogen and phosphorus contents were lower in center wetland than that in outside.And it was the same situation in sediment dredging creeks.The distribution of nitrogen and phosphorus in sediments profiles indicated that the accumulation of nutrients had been reduced in center wetland,while it was improved in outside creeks which were disturbed by human activities more frequently.The total nitrogen and phosphorus contents in sediments of Xixi Wetland were lower than that in other wetland.However, the results of primarily assessment remind us of paying more attention to nutrient contents in sediments of Xixi Wetland,which had reached the environmental criterions.All the conclusions above would provide useful information for the farther reclamations of Xixi Wetland.展开更多
文摘In this paper,the water quality of the Xixi Wetland was evaluated and the characteristics of water pollution were described according to the survey data.Based on the status of water quality and its functional requirements as an urban wetland,biological-ecological countermeasures were suggested.The experimental use of ecological technologies,such as artificial wetlands,ecological aquiculture and artificial floating island,were done in several fish ponds in the Xixi Wetland.Water monitoring results show that the quality of the treated water has improved significantly and the measures to purify the eutrophic water in the wetland have been effective.
基金Under the auspices of Forest Science and Technique Support during the 11th Five-Year Plan Period of China (No.2006BAD03A19)National Wetland Park Model Project of State Forestry Administration,P. R. ChinaHangzhou City Government (No.xixi2006-1-12)
文摘Public education as well as tourism and leisure are the two important functions of national wetland park, and tourist behaviors act as the guiding factor in the national wetland park construction and management.As the first national wetland park in China, Xixi National Wetland Park, located in Hangzhou City, Zhejiang Province, will give constructive instructions to the construction and management of other wetland parks and ecotourism resorts.This paper analyzed the tourist behaviors in Xixi National Wetland Park.By the observation, in-depth interview and questionnaire, the results show that tourists in wetland parks are different from those in the other common destinations, and they are also different from those strict eco-tourists.In fact, the tourists in wetland park have unique characteristics, such as the intense perception to the functions of wetland ecosystem and the environment impact behaviors.Those tourists are preferred to natural landscapes in their motivations and expectations.Wetland landscapes are the main image to those tourists in the Xixi National Wetland Park.Tourist expectation, experience and satisfaction are all critical factors for the success of the planning and management in national wetland parks.Based on the results, some measures for the sustainable development of wetland parks, including to optimize wetland theme landscape and tourism products, to improve tourist facilities and services, to enhance quality of visitor experiences, and to implement total quality management based on tourist characteristics, are given to national wetland park ecotourism.
基金Under the auspices of National Natural Science Foundation of China(No.41101039,41371068)
文摘The cold-island effect of urban wetlands has received increasing attention in recent years due to its important role in the alleviation of urban heat islands.Hangzhou,a representative rapidly urbanizing city with rich wetlands in China,was selected as a case study for researching the changes that the urban wetlands have undergone and their impact on the urban thermal environment.Land surface temperature(LST) was acquired from the thermal infrared data of Landsat 5 Thematic Mapper(TM) images in 1990,1995,2000,2006,and 2010,using the single-channel method.The results are as follows:1) considering the changes in land use,the urban wetlands located to the west of Hangzhou have decreased significantly during 1990–2010 because of rapid urbanization.In the Xixi Wetland,the change in land use was relatively small and most of the water body and vegetation were preserved.However,to the east of the Xixi Wetland,large areas of water body and vegetation have been replaced by built-up land as a result of the urbanization process;2) considering the change in LST,it was found from land surface temperature retrieval that the changing spatial pattern of the thermal field was highly correlated with land use changes.Low temperature regions of the eastern Xixi Wetland were gradually eroded by high temperature regions,and the centroid of the heat island in East Xixi was found to be constantly shifting westward.In addition,the difference in LST between the Xixi Wetland and East Xixi has increased;3) considering the impact factors for this area,land use structure and patch shape were found to have a significant impact on LST,shown by the results of multiple linear stepwise regressions.Increasing the size of the wetlands in urban planning is considered to be the most effective measure in alleviating the urban heat island effect.Moreover,reducing the spatial complexity of landscape patches also contributes to the alleviation of the urban heat island effect.
文摘By research on wetland water quality and nutrient distribution in sediments of Xixi Wetland,which is the first national wetland park in China,the results indicated that the water quality had been improved especially in Wuchang Creek and Deep Pond after sediment dredging.The other inspecting points were still bad and belonged to V or worse than V standard of water quality,which would not be qualified for the tourism.The total nitrogen and phosphorus contents were low in the surface sediments(0-20 cm) of wetland.The average contents of total nitrogen and phosphorus were 1.79 g·kg-1 and 0.80 g·kg-1 respectively.Spatially,the total nitrogen and phosphorus contents were lower in center wetland than that in outside.And it was the same situation in sediment dredging creeks.The distribution of nitrogen and phosphorus in sediments profiles indicated that the accumulation of nutrients had been reduced in center wetland,while it was improved in outside creeks which were disturbed by human activities more frequently.The total nitrogen and phosphorus contents in sediments of Xixi Wetland were lower than that in other wetland.However, the results of primarily assessment remind us of paying more attention to nutrient contents in sediments of Xixi Wetland,which had reached the environmental criterions.All the conclusions above would provide useful information for the farther reclamations of Xixi Wetland.
