The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The complexity of LUCC (Land Use / Cover Change, LUCC) determines that it is important to conduct the study of LUCC using complex system theories, in particular by the establishment of a mathematical model for complex systems. In this paper, the LUCC model was built based on GIS technology, CA (cellular automata) and Agent technology. Firstly, Landsat TM data of 2000 and 2010 are used to obtain the...
Based on land use diagram of three periods (1986, 1996 and 2000) interpreted by Landsat TM image and data of social economy for the last twenty years of Hailun city, Heilongjiang province, the change of land use direction, amplitude, rate and spatial distribution characteristics were analyzed by overlay-analysis function of GIS. Landscape types and the evaluation index of spatial pattern were analyzed...
Based on TM remote sensing images in 1989, 2000 and 2008, combining with GIS technology, and the city of Beijing's land use change characteristics in the past 20 years from 2008 will be analyzed. The indicators such as single land use dynamics, land utilization classification index and land use transfer matrix will be used to reveal the changes on range, speed and direction of this study area. On...
In recent years, the runoff of Haihe River basin has decreased significantly, especially after 1980s, due to climate change and human activities. So in this paper, a variable fuzzy method was adopted to research the variation characteristics of rainfall and runoff, and infer the main driving factors for runoff reduction. According to the parameter of the theorem and its relationship with zero, the...
Great land use change has taken place in most regions worldwide and such information is urgently needed to help the mankind with rational land use and development. In this paper, land use and change for Xinxiang City in Henan Province of China were analyzed in 1995, 2000 and 2005 by using a series of Landsat Thematic Mapper (TM) satellite data. And spatiotemporal characteristics analysis of land use...
The rapid expansion of construction land is one of the main characteristics of modern land use change in China. Based on the land use database acquired by interpreting the multiple-temporal Land sat Thematic Mapper (TM) images (1995, 2000 and 2005), spatial overlay analysis, spatial-clustering analysis and buffer analysis of GIS were applied and ESI (expansion speed index) and EII (expansion intensity...
Land Use / Cover Change (LUCC) is an essential component in the field of regional environmental monitoring and economic development analysis. Its motivation is to get an in-depth understanding of dynamic process, leading causes and evolution mechanism of regional land use change, which provide accurate information for land administration to develop local economic development planning and management...
Land use and land cover change (LUCC) is an important factor of global environmental change. LUCC model is the focus of land change research. LUCC of the study area in the next 13 years is predicted based on CLUE-S model. Two prediction scenarios were used which are with or without considering “Liaoning Coastal Economy Development Plan”. The results showed that the construction land increased dramatically...
Land use change plays vital roles in regional, social and economic development. Based on three phases of NDVI and climate images acquired in 1982, 1990 and 1998, and fuzzy rule-based classification, this paper took China as a case study to analyze spatial change of land use by combining NDVI, Landscape indices and transformation matrix. The research results indicate that land use has grown more and...
Land use change is recognized as one of the most important factors leading to environmental change. This study analyzed the dynamics of urban land use/cover in landscape fragmentation in Manas River Watershed during 1990-2006, including the centre Town of Manas County, City of Shihezi and part of regimental farm of Division 8. The study area is located in the mid-west of the North Xinjiang Economic...
As the largest in-land fresh water lake of China, Poyang Lake is also an important wetland in the world. However, the lake area, like the other lake areas of China, has being faced series of ecological and environmental problems and challenges, such as soil erosion, land desertification, drought and flooding disasters, farmland being soiled, pollution, invasive species, loss of biodiversity, and more...
Ecological Risk (ER) refers to the possibility of reduction for its partial health, productivity, economic value and aesthetic value when normal functions of whole landscape have been intimidated by external environment. Ecological risk assessment is a key measure of ecological environment management. Assessing the ecological risk at regional scale has practical significance in strengthening ecosystem...
Taihu Lake basin is among the most developed regions in China, and changes in land use and land-cover change were distinct in last two decades. The rapid economic growth and lagged measures in pollution control have resulted in serious environmental problems in this region. Using Landsat satellite imagery of different periods (1985, 1995, 2000, and 2005), we achieved the land use data in Taihu Lake...
Land use change plays vital roles in regional, social and economic development and global environmental change. Based on three different phases of TM images acquired in 1992, 2000 and 2006, this paper takes Kunming in China as a case study to analyze spatial change of land use and to evaluate urban environment quantitatively by combining Landscape indices and NDVI. Following the theory of landscape...
By using a series of Landsat Thematic Mapper (TM) satellite data, land use change and its landscape ecological effect are analyzed quantitatively in Datong City, Shanxi Province of China. After correlative data processing and interpreting, land use information is extracted in 1988, 1995, 2000 and 2005. Then, the paper mainly focuses on the spatio-temporal analysis of land use change and its landscape...
The upper reaches of Tarim River belong to typical ecological fragile zone and environmental critical zone. Many effects are caused by the utilization of land and water resources. Along with further development and utilization, great changes of land use pattern have been taken place. Based on the research on oasis-desert ecosystem, with the frontier theory of landscape ecology, changes of land use...
Songnen Plain is an important grain production bases, but the area of sandy desertification gradually increases. Tailai County of typical sandy desertification region in Songnen Plain is taken as an example, and the data of land use and sand land change are acquired in 1986, 2000 and 2005 by RS and GIS technology, then the influence of land use on sandy desertification is analyzed, finally, characteristic...
This paper presents the methods of dynamic monitoring and prediction model of land use change and their application in Changsha county. Firstly, with the support of remote sense and geographic information system, the land use of Changsha county was categorized into five types. Then growth degree index was introduced to analyze the dynamic evolution process of land use change. Markov model was used...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.