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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...
Based on the fourth Landsat TM image data of 1985, 1995, 2000 and 2005, this paper estimates the vegetation carbon storage of various types of land and analyzes the temporal-spatial impacts of land use change on vegetation carbon storage in Wujiang City, Jiangsu Province. The study reveals that from 1985 to 2005, great changes have taken place in land use in Wujiang City, and these changes are primarily...
This paper using remote sensing technology, extract land use and land cover change (LUCC), topography and geomorphology, vegetation coverage information of Wenchuan city. According to 2007~2008 type of land use change on the current situation and the dynamic changes in Wenchuan LUCC analysis. The results showed that after the earthquake, the forest cover of Wenchuan coverage from 67.59% in 2007 fell...
As the interface among land, ocean and atmosphere, coastal zone has very high natural energy and biological productivity. Many people immigrate and live in coastal zone area. With the development of economy, land change and land covers in urban areas tend to change drastically over a short period of time due to rapid urbanization. The paper studied on urbanization of coastal zone area in China based...
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 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...
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...
Monitoring, Reporting and Verification (MRV) of forest carbon (C) stocks, changes in these stocks (ΔC) due to land use and land use change and net greenhouse gas emissions are critical technical challenges of climate change mitigation initiatives aiming to reduce emissions from deforestation and forest degradation in developing countries (REDD). MRV systems for emission reporting for voluntary carbon...
Rapid land use change has taken place in many urban regions of China such as Chengdu city, many problems in society and environment have appeared. Assessment on urban land use change is essential for land sustainable development. The objective of this study is to analyze the spatio-temporal dynamic change of urban land use from 1992 to 2008 in Chengdu city, the provincial capital of Sichuan, has undergone...
The Advanced Land Observing Satellite (ALOS) has been developed to contribute to the fields of mapping, precise land coverage observation, disaster monitoring, and resource surveying. The Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM), carried on ALOS satellite, has three optical systems for forward, nadir and backward view with 2.5 m ground sample distance (GSD). ALOS satellite...
Monitoring land use status timely is the basis of rational management of land resource, and the important gist for planning agriculture or even the whole national economy. Possessing the advantages of macroscopic information, real time, periodicity and integrity, remote sensing provide the possibility for monitoring land use quickly, objectively and precisely. This research uses CART algorithm to...
Vegetation productivity is one of the most important indicators for grassland health, which is also an important parameters for calculating the livestock carrying capacity. This research on alpine grassland productivity changes in the source region of Yellow River helps us comprehend the dominating driven factors on alpine grassland degradation and improve decision making by the government managers,...
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...
This paper takes Fengxian in Jiangsu Province as an example, on the basis of Landsat TM/ETM+ images of four different time (1988, 1995, 2001, 2006) and aerial photographs of 2005, meanwhile, auxiliary data such as administrative vector map of Fengxian, land use map and socio-economic statistical data of 1995,2006. supported by RS and GIS technology, land use spatial database and attribute database...
With the development of economy, the social economy condition of Wuhan city has changed a lot. Land use change is the most remarkable among the changes which has deep influence on economy development, ecology change, and land sustainable development, et al, especially on the urbanization, more direct and remarkable. This article mainly analyzes Wuhan's land use change condition in the progress of...
There is vast territory in Sichuan province, but its per capita land area is lower than the average level of whole nation, and the serious contradiction between man and land always exists. So the study on the land use/cover condition and its dynamic change in Sichuan province is very important, which is also the significance of the paper. By advanced RS and GIS technology, the study centers around...
With the construction of the Three Gorges Project, the type of land use/land cover in Three Gorges Reservoir Region changed much, at the same time, the environment of the same region changed greatly, too. There is some relationship between the land use/land cover changes and environment changes, which is the reason of the paper. Firstly, the analysis of the TM remote sensing images in 1995 and 2008...
Natural and anthropogenic (e.g. land cover/land use change) processes can lead to ecosystems change dramatically on timescales from years to decades. Especially, land cover/land use changes by mining can have drastic impacts on ecosystems and basin-wide water budgets. Phosphate rock is an important strategic resource. China and U.S. are two major phosphate reserves counties in the world and both facing...
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...
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