Landsat TM/OLI images of the built-up areas in Chengde City(Shuangqiao District and Shuangluan District) in 2000,2009 and 2014 were adopted,Support Vector Machine(SVM) was applied to classify the images automatically,...Landsat TM/OLI images of the built-up areas in Chengde City(Shuangqiao District and Shuangluan District) in 2000,2009 and 2014 were adopted,Support Vector Machine(SVM) was applied to classify the images automatically,land use/cover map of the study area was obtained after precision test.Through analyzing the land use types in the study area and also applying transfer matrix to monitor the changes,the results showed that human activities and urbanization in the past 14 years have brought the increasing tendency of construction land,and the negative growth of arable land,forest and shrubbery land.It is urgent to adopt corresponding measures to maintain the coverage of forest and shrubbery land in the built-up area of Chengde City,so as to reduce the impact of human activities and improve urban ecological environment.展开更多
[ Objective] The research aimed to analyze variation rule of the precipitation series in Chengde City in recent 58 years. [Method] Mexi- can hat wavelet was used to analyze multi-scale characteristics of the monthly p...[ Objective] The research aimed to analyze variation rule of the precipitation series in Chengde City in recent 58 years. [Method] Mexi- can hat wavelet was used to analyze multi-scale characteristics of the monthly precipitation data in Chengde from 1951 to 2008. We revealed multi- time-scale complex structure of the precipitation change in Chengde, analyzed change cycles and mutation points of the precipitation series under different time scales, and identified primary period in each series. [ Result]There were high/low value centers of the precipitation under interdec- adal scale （more than 10 years）. Under interannual scale （below 10 years）, oscillation was complex and variable, but 4-year scale had obvious high-frequency oscillation. Wavelet variance analysis verified existence of the 4-year precipitation cycle, and M - K test also confirmed conclusions of the wavelet analysis. [ Conclusion] We could judge from alternating wet and dry conditions that the wet year decreased significantly, and the cur- rent Drecioitation was still less than normal.展开更多
Holiday Tourism Circle of Beijing (HTCB) is one of the nine key regions of Chinese tourism industry in the period of the 11th Five-Year Project. According to Tourist Marginal Utility Theory, Time-Distance Method is us...Holiday Tourism Circle of Beijing (HTCB) is one of the nine key regions of Chinese tourism industry in the period of the 11th Five-Year Project. According to Tourist Marginal Utility Theory, Time-Distance Method is used to define HTCB in this paper. Chengde City, famous for its cultural tourism, is regard as one of the regions in Holiday Tourism Circle of Beijing. And this geographical advantage, in the context of the boom of tourism in China, is featured by the changes of tourist product structure and development model. In this paper, the influence upon Chengde tourism spatial structure has been discussed from tourist market, location and transportation. Chengde tourism spatial structure has been rebuilt with particular references to the factors of tourism destination district, tourist area, nodes, routes, and origin markets. In this paper, Chengde will develop tourism industry with the central heritage area as the center and northern forest and pasture area and southern mountain and lake area as the two wings.展开更多
Chengde Mountain Resort was the summer residence of emperors dur- ing the Qing Dynasty (1644-1911). Construction of the resort started in 1703, and lasted for 87 years. Chengde City in
Chengde City,famous for its cultural sightseeing tourism industry,and is located in China's"Capital Holiday Tourism Circle".This location is advantageous,because of the recent boom in China's nationa...Chengde City,famous for its cultural sightseeing tourism industry,and is located in China's"Capital Holiday Tourism Circle".This location is advantageous,because of the recent boom in China's national tourism industry.This industry has gone through several structural and development changes with in the past several years.A result of these restructuring patterns is the great changes concerning competitive and cooperative relations among tourism destinations,which have precipitated the decline of the traditional sightseeing pattern.Northern China's"Capital Holiday Tourism Circle"is one of nine key areas within the Chinese tourism industry under development during the Eleventh Five-Year Plan.In the present article the method of"Distance Decline of The Tourist Flow"was used to define the flow of tourists in the Capital Holiday Tourism Circle and its influence upon Chengde's tourism spatial distribution.3 aspects will be discussed:(1)The transformation from sightseeing to leisure markets makes the change possible in Chengde's tourism spatial pattern.(2)The location advantage(adjacent to Beijing and Tianjin)also leads to the change in Chengde tourism spatial pattern.(3)The establishment of freeways also contributes to a great degrees of change.The rapid development of leisure tourism might lead to the change from nucleus model to a diversified one within Chengde's tourism.Specifically,Chengde is developing the tourism industry with the central heritage area as the nucleus and the northern forest,pasture,southern mountain,and rivers as its periphery.展开更多
At the northern foot of the beautiful Yanshan Mountain and the southern edge of the Inner Mongolian Plateau lies Fengning, a small county surrounded by mountains. This picturesque area is part of Hebei's Chengde C...At the northern foot of the beautiful Yanshan Mountain and the southern edge of the Inner Mongolian Plateau lies Fengning, a small county surrounded by mountains. This picturesque area is part of Hebei's Chengde City, which is celebrated as a prime summer resort of emperors of the Qing Dynasty(1644–1911).展开更多
基金Sponsored by Program of Hebei Provincial Department of Education(Z2015080)Scientific and Technological Support Program of Chengde City(2015035)Scientific and Technological Research Program of Hebei Normal University for Nationalities(FY201523)
文摘Landsat TM/OLI images of the built-up areas in Chengde City(Shuangqiao District and Shuangluan District) in 2000,2009 and 2014 were adopted,Support Vector Machine(SVM) was applied to classify the images automatically,land use/cover map of the study area was obtained after precision test.Through analyzing the land use types in the study area and also applying transfer matrix to monitor the changes,the results showed that human activities and urbanization in the past 14 years have brought the increasing tendency of construction land,and the negative growth of arable land,forest and shrubbery land.It is urgent to adopt corresponding measures to maintain the coverage of forest and shrubbery land in the built-up area of Chengde City,so as to reduce the impact of human activities and improve urban ecological environment.
基金Supported by Natural Science Research Item of Hebei Higher Institution (Z2009202)
文摘[ Objective] The research aimed to analyze variation rule of the precipitation series in Chengde City in recent 58 years. [Method] Mexi- can hat wavelet was used to analyze multi-scale characteristics of the monthly precipitation data in Chengde from 1951 to 2008. We revealed multi- time-scale complex structure of the precipitation change in Chengde, analyzed change cycles and mutation points of the precipitation series under different time scales, and identified primary period in each series. [ Result]There were high/low value centers of the precipitation under interdec- adal scale （more than 10 years）. Under interannual scale （below 10 years）, oscillation was complex and variable, but 4-year scale had obvious high-frequency oscillation. Wavelet variance analysis verified existence of the 4-year precipitation cycle, and M - K test also confirmed conclusions of the wavelet analysis. [ Conclusion] We could judge from alternating wet and dry conditions that the wet year decreased significantly, and the cur- rent Drecioitation was still less than normal.
文摘Holiday Tourism Circle of Beijing (HTCB) is one of the nine key regions of Chinese tourism industry in the period of the 11th Five-Year Project. According to Tourist Marginal Utility Theory, Time-Distance Method is used to define HTCB in this paper. Chengde City, famous for its cultural tourism, is regard as one of the regions in Holiday Tourism Circle of Beijing. And this geographical advantage, in the context of the boom of tourism in China, is featured by the changes of tourist product structure and development model. In this paper, the influence upon Chengde tourism spatial structure has been discussed from tourist market, location and transportation. Chengde tourism spatial structure has been rebuilt with particular references to the factors of tourism destination district, tourist area, nodes, routes, and origin markets. In this paper, Chengde will develop tourism industry with the central heritage area as the center and northern forest and pasture area and southern mountain and lake area as the two wings.
文摘Chengde Mountain Resort was the summer residence of emperors dur- ing the Qing Dynasty (1644-1911). Construction of the resort started in 1703, and lasted for 87 years. Chengde City in
文摘Chengde City,famous for its cultural sightseeing tourism industry,and is located in China's"Capital Holiday Tourism Circle".This location is advantageous,because of the recent boom in China's national tourism industry.This industry has gone through several structural and development changes with in the past several years.A result of these restructuring patterns is the great changes concerning competitive and cooperative relations among tourism destinations,which have precipitated the decline of the traditional sightseeing pattern.Northern China's"Capital Holiday Tourism Circle"is one of nine key areas within the Chinese tourism industry under development during the Eleventh Five-Year Plan.In the present article the method of"Distance Decline of The Tourist Flow"was used to define the flow of tourists in the Capital Holiday Tourism Circle and its influence upon Chengde's tourism spatial distribution.3 aspects will be discussed:(1)The transformation from sightseeing to leisure markets makes the change possible in Chengde's tourism spatial pattern.(2)The location advantage(adjacent to Beijing and Tianjin)also leads to the change in Chengde tourism spatial pattern.(3)The establishment of freeways also contributes to a great degrees of change.The rapid development of leisure tourism might lead to the change from nucleus model to a diversified one within Chengde's tourism.Specifically,Chengde is developing the tourism industry with the central heritage area as the nucleus and the northern forest,pasture,southern mountain,and rivers as its periphery.
文摘At the northern foot of the beautiful Yanshan Mountain and the southern edge of the Inner Mongolian Plateau lies Fengning, a small county surrounded by mountains. This picturesque area is part of Hebei's Chengde City, which is celebrated as a prime summer resort of emperors of the Qing Dynasty(1644–1911).
