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In order to analyze the order and complexity of land resource utilization in Loess Hilly and Gully region, based on dissipative structure theory, the entropy exchange model were set up which according to the characters of utilizations of land resource in Loess Hilly and Gully region. Three types of information entropy were constructed, including protection and harness, production and environment entropy...
Based on the characteristics of land resources information management, this research firstly designs a land resources cloud computing platform. Four main strategies, namely job scheduling, cloud cache pool, Map Reduce and resources-oriented techniques are then discussed in details. A prototype system named Land Cloud is then introduced, followed by two experiments which are conducted to test the performance...
Land resources are the foundation of existence and development of human being, its an important part of country resources. Urbanization and industrialization is very fast in Dalian City.In the process, too much agricultural land was transformed into construction land,which aggravated the contradiction between people and land.So how to achieve sustainable development and use of land resource, keep...
The main functional areas planning for the first time to put forward four main functional areas in China. Ecological suitability assessment on land use is one of the fundamental works to use the limited land resources in China rationally. It has an important practical value on china's regional main functional areas planning from the angle of methodology. GIS-based multi-criteria assessments could...
For the target of ecological restoration and landscape overall optimization, the study selects China Jingxi abandoned coal mines for typical cases, takes advantage of remote sensing data and GIS spatial information processing technology, through the method combing existing land-use planning, damage assessment of ecological environment and overall optimization of land resource using pattern, determines...
The Pressure-State-Response model (PSR) proposed by the OECD and UNEP in 1994 was used to evaluate ecosystem health, In this paper, the PSR concept model was cited to reflect the pressures upon land resource in different time exerted by human activities, the responses of society to these pressures, and the state changes of land resources in different phase. A workable indicators system of PSR model...
Problems of land ecological security caused by the unreasonable utilization of land resource have influenced the sustainable development of society and economy. This paper selected areas along the Changjiang River in Anhui Province as study area. It constructed an evaluation index system of land ecological security based on Pressure-State-Response model. Considering the illegibility and uncertainty...
Evaluation of land ecological safety plays an important role in regional economic development, reasonable land utilization and ecological construction. The paper constructed an evaluation indicator system of land ecological safety. The indicator system was composed of natural, economic and social elements. Then the paper established an evaluation model of land ecological safety based on ordered division...
Accompanied with the rapid industrialization and urbanization in China, the shortage of resources becomes the most important factor which limits the development, especially in the developed districts such as the Yangtze River Delta. Land resource is the base of economic development but China's per capita land resource is so lack as to support the economic development. So how to put land resource to...
According to the characteristics of land resource spatial information and the need of applications, the technology framework and share of the land resource spatial information grid (LRSIG) are discussed using the space information grid technology. The distribution and integration of spatial information resources, computing resources and service resources help to establish the coordination of spatial...
Based on the analysis of RS data and fractal in modeling the spatial-temporal changes of urban spatial morphology in the study area during the 38 years from 1967 to 2004, we reached the following main conclusions. First, three fractal dimensions of urban form of Wuwei in 1967, 1998 and 2004 were 1.5397, 1.7086 and 1.7717 respectively (all less than 2), which indicated the land use density of Wuwei...
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