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This paper taking Mudanjiang in Heilongjiang Province as the study region, the remote sensing data and topographic map data in forth years as a basis for data, the vulnerability model was evaluated based on the sensitivity, exposure and adaption ability, relevant parameters of model was acquired by GIS and RS technology and mathematic model, and the vulnerability of ecological environment was in a...
A system of wetland monitoring and Eco-health assessment has been set up based on 3S. The system is be made up of information management subsystem, assessment subsystem, prewarn subsystem, other management subsystem. Taken Huixian wetland of Guilin as the object of study, the system made to operating, the result show that the wetland state of health is bad, CEI=0.364. The building of the system is...
Wuhan city is the core city of Wuhan city circle and the major city of the Yangtze River, and the change of water have attracted great attention. Using the techniques of "3S" and landscape ecology, based on 1991 and 2009 Landast TM remote sensing image, integrating with the change of water modeling, transform matrix, the shift of gravity centers and landscape pattern analysis software Fragstats3...
Landscape spatial patterns have profound implications for the functions of ecosystem. Remote sensing is an important tool for monitoring and managing structural changes of protected areas. Based on landscape ecological principles, the paper presents a case study on landscape pattern with the application of satellite remote sensing and GIS data, using dynamic analysis method. Such indices as the patch...
Based on remote sensing(RS) and geographic information system(GIS) technology, the land use range and landscape pattern index were used to study the spatial-temporal change of land use in Pingdingshan mining area, Henan Province, China. We analyze the change of the range and spatial pattern based on remote sensing images in 1978, 1994 and 2006. The results showed: 1) The regional landscape were changed...
Kangding County is the important gateway to Tibet Autonomous Region, China. Recently, Kangding County, relying on its water, minerals, tourism, ecology and other advantages of resources, has developed economy, which impact on the ecological environment more apparently. In this paper, we used two LANDSAT TM and ETM data sets and some other vetor data to quantitatively estimate changes in the size of...
This paper use ETM and GIS date of 2000 year, using ecosystem service evaluation parameter which Costanza advanced, estimate that the ecosystem service function value of wet land and meadowland in Xinjiang ABI lakeside is 8.76×108 RMB/hm2. The contribution rate in the total meadow ecosystem service function value of Sacsaoul desert, tamarix cone, salt marsh, salt meadow are 26.03%, 21.36%, 20.93%,...
An evaluation index system of land suitability for Weishan county was built according to the basic principles of land suitability evaluation. Three main factors were included, such as nature, ecology and society. The weight of each factor was determined by Analytic Hierarchy Process (AHP). Moreover, the land suitability of Weishan county was assessed under the support of Geographic Information System...
This paper aims to address a case study of strategic environmental assessment (SEA) on the planning of ChangPing region in Beijing China. And puts forward the enforcement framework and a basic procedure of regional Plan EIA for urban regional sustainable development. The new methods with the ecological suitability analysis of regional development and environmental carrying capacity as its core are...
The Northeast shelterbelt project is a part of the Shelter Forest System Program in Three-North Regions of China. By far, the third phase project has been completed, and the fourth phase project is on the point of completion. This paper chose the Yushu, Nong'an, Dehui and Fuyu in midwestern Jilin province as the research areas, selected three phase shelterbelt data and land use data at Sep. 25, 1988,...
Urban wetlands play a significant role in the sustainable development. But the effect of human action on urban wetlands has been expanded in greater scope and depth, which may cause the accelerated degeneration of urban wetlands seriously. Based on the historical data of land using maps, topographic maps and TM images of Wuhan from 1930s to 2005, which were through the Man-Machine Interaction in ArcGIS...
The unrestrained exploitation of coal resources lead to severe environmental problems in resource-exhausted areas in China. The environmental pollution and ecological damage degree are the basis to the eco-environmental restoration, both to determine the scope and to calculate the investment. So in ecological damaged area, to evaluate the damage degree is more important than evaluate the quality....
The Qinghai-Tibet Plateau is the largest lake area in China, with a total area of existing lakes of 36,900 km2, accounting for 52% of the total lake area of China. Lakes on the Tibetan Plateau play critical roles in the water cycle and ecological and environment systems of the Plateau. The obvious changes of lake area in Qinghai-Tibet Plateau can be directly expressed by the remote sensing images...
The urban heat island effect (UHI) has caught great attention with the fast urbanization processes. UHI leads to the worsening environment due to its contribution to intensely high temperature, particularly in the summer. The effect of summer UHI has been concerned in the whole urban ecological system. Taking Shanghai as an example, two distinct ETM+ remote sensing (RS) images are analyzed to show...
Net primary productivity (NPP) estimation is an important study field of global change and terrestrial ecosystem. Here, we present an integrated modeling and analysis framework for researching climate change using NPP as an ecosystem indicator. It's brings together remote sensing, GIS and an ecosystem simulation model without requiring users to have any knowledge of any other specific software. Satellite...
Beidagang wetland is an important infrastructure of Tianjin, possessing a variety of ecological environment and social service functions. However, Beidagang wetland ecosystem has been seriously degraded and its wetland functions have also been weakened under the influence of various factors. Research on the dynamic change characteristics of Beidagang wetland is of great significance to ameliorate...
Longmen Shan tectonic belt located in West Sichuan Plateau, which keeps the good forests outlook and provides a unique natural environment for the growth of medicinal plants because of its unique geological features. It is a area that is one of the most abundant biological diversity in China and the whole world range, and also is the one of the most concentrated area of the origin of Chinese herbal...
Taking Landsat5/TM images of 1988, 1997 and 2005, this paper used RS and GIS to analyze the changes of ecological environment effects of land use/cover change (LUCC) during the recent 17 years of the study area. The results indicate that: swamp land shows obvious decreasing trend and decreases 1674km2; dry land and paddy land shows strong increasing trend and increase 377km2 and 1338km2 separately...
The Liaohe River Delta wetlands contain over 800 km2 of the world's most important and unique natural wetlands, which support a wide range of important biological diversity and act as crucial staging and breeding areas for migratory bird populations. In the past two decades, however, these wetlands and the biodiversity they support have been under constant threat of degradation, mostly due to human...
This paper, on the basic principles of extraction of hydrological information by DEM (Digital Elevation Model), applies the toolkit in ArcGIS 9.0 for the analysis of the hydrological information, extracts eco-hydrological characteristics of stream basins in Ya'an. Information such as flow direction, flow accumulation, flow length, stream networks, and snap pour point are obtained. The spatial distribution...
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