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Ye B.,China University of Geosciences | Bao N.,China University of Geosciences | Bai Z.,China University of Geosciences | Bai Z.,Key Laboratory of Land Reconsolidation and Rehabilitation
2010 International Conference on Mechanic Automation and Control Engineering, MACE2010 | Year: 2010

The aim of this study is 1)to estimate the land use/cover changes from 1987 to 2005 based on three LANDSAT TM images;2)to calculate the Ecosystem services value of Pingshuo Mine with the method of published by Costanza et al.. The results show that : During the year of 1987 to 2005,the arable land decrease is from 20816 hm2 to 18774.97 hm2,which declined more sharply than other land use types; the forest land and water declined 2124.19 hm 2 and 72.83 hm2 respectively. Widespread build-up expansion took place in the study area, it increased by 4031.66hm2. According to our estimates, the total annual ecosystem service values in Pingshuo mine have declined by about RMB 29.38 million between 1987 and 2005. Comparing other land classification, there is a significant drop in ecosystem service value of forest land, which decreased from RMB 52.71 million in 1987 to RMB 39.36 million in 2005.The value of arable land declined by RMB 5.74 million, less than that of forest land. The ecosystem of water was severely disturbed which value drop from RMB 5.54 million in 1987 to RMB -9.57 million in 2005.Keywords-component; formatting; style; styling; insert (key words) ©2010 IEEE. Source


Bao N.,China University of Geosciences | Ye B.,China University of Geosciences | Bai Z.,China University of Geosciences | Bai Z.,Key Laboratory of Land Reconsolidation and Rehabilitation
2010 International Conference on Mechanic Automation and Control Engineering, MACE2010 | Year: 2010

This paper reports an investigation into the use and application of remote sensing data for monitoring the environmental impacts of open cast coal mining in ATB. This investigation is based on the digital analysis of Landsat and HJ-1 images acquired from 1976 to 2009. The characteristics of the imagery enable quantitative analysis of different open cast mine features, such as open-pits, change of land use, reclamation processes and estimation of vegetation cover in the affected areas. The interactively interpret method was used to derive land use map during 1976-2009. The result shows that between 1976 and 2009, 64.05% of cultivate land, 17.35% of vegetation, and 16.89% of bare soil were transformed into coalfield.in the study area. A lot of land was destroyed and the total area is up to 5224.98hm2. Land reclamation began in 1992 and the reclamation area is 1167.72 hm2 which only account for 28.78% of total degraded land areas in 2009,and the rate of reclamation is less than that that of degradation. Maps produced from remote sensing data can provide information for subsequent impact assessments from surface mining development on land cover, as well as forming the basis for reclamation planning and monitoring ©2010 IEEE. Source


Cao Y.-G.,University of Science and Technology of China | Cao Y.-G.,Key Laboratory of Land Reconsolidation and Rehabilitation | Bai Z.-K.,University of Science and Technology of China | Bai Z.-K.,Key Laboratory of Land Reconsolidation and Rehabilitation | And 3 more authors.
Journal of Mountain Science | Year: 2013

The Three Gorges project accelerates economic development in the Three Gorges Reservoir Area. This paper aimed to investigate the distribution, changes and features of cultivated land in this area, analyze the forces driving the changes in cultivated land area, and propose the countermeasures for cultivated land management. Transition matrix was used to analyze the features of cultivated land changes, and quantitative analysis and qualitative analysis were adopted to research the driving forces according to the features of cultivated land changes. Cultivated land in the Three Gorges Reservoir Area mainly lay to the northwest of the Yangtze River, especially the upper reaches. The areas of cultivated land increased from 1996 to 1999, then decreased from 2000 to 2006, and finally increased again from 2007 to 2009. The important forces driving changes in cultivated land included government policies, employment and food security, increasing construction land, agriculture structure adjustment, land rearrangement, inundation. During cultivated land management, firstly, it is necessary to insist on the principle of cultivated land protection, standardize land exploitation and strictly restrict the transformation of cultivated land into non-farming land. Secondly, land rearrangement must be implemented, which can not only increase the area of the cultivated land, but also improve the quality of the cultivated land. Thirdly, it is feasible to intensify eco-agriculture construction to increase the quantity and quality of cultivated land. Fourthly, it is helpful to improve the traditional agriculture production methods to promote cultivated land quality. Lastly, it is important to propagandize cultivated land protection and realize the enormous pressure of cultivated land shortage, making more people obligated to protect cultivated land. © 2013 Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag Berlin Heidelberg. Source


Geng-jie Z.,China University of Geosciences | Geng-jie Z.,Key Laboratory of Land Reconsolidation and Rehabilitation | Zhong-Ke B.,China University of Geosciences | Zhong-Ke B.,Key Laboratory of Land Reconsolidation and Rehabilitation
Advance Journal of Food Science and Technology | Year: 2013

This study used satellite photos of 1985, 1990, 1994, 1999 and 2005 in Pingshuo mining area, for the purpose of researching on the change of Ecosystem Service Value (ESV) in the past 20 years. It calculated the change amplitude, change velocity and relative change rate of ESV and compared the Sensitivity Index (SI) of ESV coefficient. The result is that, the total ESV of Pingshuo mining area descended from 31270.98×104 Yuan in 1985 to 30348.14×104 Yuan in 1990. When the destroyed land had been reclaimed from 1990, ESV had been raised to 31109.05×104 Yuan in 2005. The change amplitude, change velocity and relative change rate of destroyed and reclamation land were the first and second highest among the types of land use in mining area. SI of dry land is the highest, while the destroyed land's is the lowest. It could conclude that the ESV coefficient of mining area is inelastic. Reclamation should be strengthening in mining area in order to recover ecosystem efficiently. © Maxwell Scientific Organization, 2013. Source


Zhang J.,University of Science and Technology of China | Zhang J.,Key Laboratory of Land Reconsolidation and Rehabilitation | Fu M.,University of Science and Technology of China | Fu M.,Key Laboratory of Land Reconsolidation and Rehabilitation | And 3 more authors.
Ecological Modelling | Year: 2014

Rapid urbanization and industrialization accelerate economic development, but have a negative influence on environments. The aim of this study is to attempt to handle the relationships properly between them, a hot topic all over the world. Based on the reviews of land allocation and the previous research on ecological storage, this paper takes both economic and ecological considerations into account in the framework design of land allocation model, and then proposes Primary Development and Secondary Optimization Model for Land Allocation (PDSO-LA model), together with a series of other models/approaches for judgment, analysis and test. The model follows the past, present and future land use and ecosystems and sets up relevant constraints, but more emphasizes the trade-offs within and between structural and functional ecological storage. Especially, this study gives a new trial idea and approach to estimate the converted equivalents for balanced individual functions-orientated sub-ecosystems in the modeled part for secondary optimization. In order to verify the availability and practicability of PDSO-LA model, this paper takes Wu'an as a case study and makes sufficient investigations. The results show that the volumes of structural ecological storage after allocation in 2010 and 2020 will reach 5865.24. RMB/ha and 6096.21. RMB/ha, in a rising trend, and its orderly change will be enhanced; in contrast, though land allocation cannot basically change the disorder trend for functional ecological storage, the intensity of disorder can be mitigated by using PDSO-LA model. Thus, it is concluded that PDSO-LA model can effectively improve or at least mitigate the disorder of trade-offs. © 2013 Elsevier B.V. Source

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