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Analyzing the ecological benefits from different land utilization ways comparatively, by means of the evaluation of ecological service value, set a strong fulcrum for choosing rational land utilization way, and became the key point in land use pattern at present, especially in local scale. Therefore, by taking Shapingba district of Chongqing city as an example and rectifying the coefficient of ecological...
Land use and land cover change (LUCC) plays an important role in the evolution of the global environment and sustainable development. Land use is related to natural geography and human actions, and the factors during some period are mainly studied in LUCC. Most researches are concerned about rural area but few about urban fringe area. In this paper, land use change in the outskirtsis studied, taking...
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...
Based on five series of TM images, the quantity and spatial feature changes of land use in Pearl River Delta region during the period of 1985 to 2005 were analyzed quantitatively with the support of RS and GIS technology. The results showed a significant increase in the area of urban and rural construction land and a decrease of arable land, which suggested that the study region is in a fast developing...
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...
Based on the four temporal satellite remote sensing TM/MSS images of Hongfeng Reservoir basin, using remote sensing and GIS technology, the land use data of three stages for 35 years was established. According to the basic data of land use, the land use change was quantified by way of computing the transition matrix, dynamic degree index, change rate index and comprehensive degree index of land use...
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...
Human activities on land-use make the land-cover gradually change or transit. With the GIS/RS technique, the paper studies the ecosystem service values change in Qianjiang City which is begotten by land use change. The results shows that the ecosystem service values shows an upward trend, and the land use structure is more reasonable.
Responses of hydrologic process to human induced land use changes, which have affected a wide portion of China since last century, were evaluated with a coupled land surface-hydrology model. The main land use changes were assessed by the International Satellite Land Surface Climatology Project (ISLSCP) historic (1970) and potential land use types in the Huaihe River basin. The variations of flood...
This paper analyzed the characteristics and major human driving forces of cultivated land change in Fuzhou, China, using remote sensing (RS) images, geographic information system (GIS) spatial analysis, and socio-economic data. Based on the RS images and GIS spatial analysis, a change matrix was constructed to detect land-use change from 1989 to 2005. The result indicated that paddy fields and dry...
Land-use changes of oases city in Xinjiang played a significant role in the ecological stability and economic development of the arid regions in the Central Asia. Urumqi was a typical oasis city of the temperate zone in the Northern Slope Economic Zone of Tianshan Mountain. Based on Landsat MSS of 1972, Landsat TM of 1990 and 2006, it got three periods of land- use data and six land-use types (cropland,...
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...
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