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This study aims at revealing how land use and land cover change in the typical watershed (Luoyugou Watershed) of Loess Plateau over past 20 years. Based on the remote sensing imagery data and topographic map, a four-stage (1986, 1995, 2001 and 2008) spatial data base was established with ArcGIS software. Demographic data, agricultural economic data and other auxiliary data were collected from national...
Using the data on land use and land cover change (LUCC) compiled from Landsat images of 1987 and 2002 and field survey in the arid inland river basin, water resource changes induced by land use were studied. The results reveal that significant changes in land use occur within the whole basin over the study period and cause such decline of groundwater table and degeneration of surface water and groundwater...
Land use and land cover play an essential role in the process of land-atmosphere interaction, and their changes influence regional climate in complicated ways. This function is also regarded as a more important driving force in an arid area, where vegetation changes will greatly alter energy and water distribution at watershed scale, and further influence ecological balance and agricultural production...
Based on the data of multi-temporal point TM images, by applying the theory of Ecosystem Service Value, the Gravity Center Model, ESDA method and so on, the paper calculates the ecosystem service value in Circum-Taihu Lake region in 1985, 1995, 2000, 2005 and analyzes the characteristics of the gain and loss of the ecosystem service value, their spatial difference changes, the spatial pattern evolution...
Based on RS (Remote Sensing) data sources and GIS (Geographic Information System)technology and by ways of mapping models and LUCC analysis models, the land use and land cover change of 300m off the central line of YuJing Expressway are being studied. The qualitative and quantitative evaluations of land use and land cover change in that area unveil the temporal and spatial variation, the process,...
Based on the phantom interpretation data of land TM/ETM of 1996 and that of 2006, this article analyzed the land use and land cover change of ChangBai Mountain area in the recent 10 years, and calculated the change of ecosystem service value resulted from this change. During the 10 years, LUCC of Changbai Mountain area had changed fiercely, the paddy field, the forest land and the wetland were in...
An accurate, up-to-date and spatially-explicate national land cover database is required for monitoring the status and trends of the nationpsilas terrestrial ecosystem, and for managing and conserving land resources at the national scale. With all the challenges and resources required to develop such a database, an innovative and scientifically sound planning must be in place and a partnership be...
Mountain-basin system (MBS) is the basic pattern of natural heterogeneity and regionalization in North-western China, and its big extent, multi-Layer and regular complex of terrestrial ecosystems in Northern Tianshan Mountains, Xinjiang, China, is the basin and frame to form this kind of pattern. To support regional sustainable development both on theory and practice, more and more vulnerability assessments...
Monitoring landscape change is critical to better understand urbanization impacts on ecosystems. Remote sensing and geo-referenced socio-economic data provide powerful tools for documenting changes in the landscape and developing strategies to minimize the effects of urban development on natural habitats. The interpretation and analysis of urban land cover change from remotely sensed images however...
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