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Pattern simulation of karst rocky desertification based on cellular automata
Acta Ecologica Sinica, 2012Desertification in the karst mountain regions of southwest China is one of the most challenging environmental issues in western China because of its severe negative effects on the local community.Based on natural and cultural factors that cause rocky desertification occurrence and development,a simple,effective simulation and prediction model for karst
王晓学 WANG Xiaoxue +2 more
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Spectral indices for estimating ecological indicators of karst rocky desertification
International Journal of Remote Sensing, 2010Karst rocky desertification is a process of land desertification associated with human disturbance of the fragile eco-geological setting of karst ecosystems. The fractional cover of photosynthetic vegetation (PV), non-photosynthetic vegetation (NPV), bare soil and exposed bedrock are key ecological indicators of the extent and degree of land ...
Yuemin Yue +7 more
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Mapping karst rocky desertification using Landsat 8 images
Remote Sensing Letters, 2015Karst rocky desertification (KRD) is a serious ecological problem in southwest China. Various remote sensing techniques are available for investigating KRD. Landsat 8 Operational Land Imager (OLI) data, acquired in September (summer) 2013 and January (winter) 2014, were used to analyse the role of vegetation fraction, bedrock exposure, and slope on KRD
Shuang Li, Honggan Wu
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The relations between land use and karst rocky desertification in a typical karst area, China
Environmental Geology, 2008Karst rocky desertification (KRD) is one major type of desertification which is under irrational human impact on the vulnerable eco-geo-environment. In this study, Zhudong fengcong rocky desertification landscape was selected to investigate the land use types distribution law in different rock types and the KRD land in different land use types.
Yang-bing Li +3 more
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Factors influencing the evolution of human‐driven rocky desertification in karst areas
Land Degradation & Development, 2020AbstractKarst rocky desertification has become one of the most important e‐environmental problems in China. The mechanisms of rocky desertification caused by land resources use, settlement expansion, population growth, and corresponding ecological responses are unclear. High‐resolution images of a typical karst plateau (Houzhai River Basin) acquired in
Zhenming Zhang +2 more
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Developing new spectral indices for karst rocky desertification monitoring in Southwest China
2009 IEEE International Geoscience and Remote Sensing Symposium, 2009Karst rocky desertification is a special kind of land desertification developed under violent human impacts on the vulnerable eco-geo-environment of karst ecosystem. The fractional cover of photosynthetic vegetation (PV), non-photosynthetic vegetation (NPV), bare soil and exposed bedrock are key indicators of the extent and degree of land degradation ...
Yuemin Yue +6 more
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[Theoretical model for rocky desertification control in karst area].
Ying yong sheng tai xue bao = The journal of applied ecology, 2008Based on the basic principles of restoration ecology, the trigger-action model for rocky desertification control was proposed, i. e. , the ability that an ecosystem enables itself to develop was called dominant force, and the interfering factor resulting in the deviation of the climax of ecological succession from its preconcerted status was called ...
Liang, Liang +4 more
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Comprehensive assessment of rocky desertification treatment in Southwest China karst
Land Degradation & DevelopmentAbstractRocky desertification is a prominent ecological issue in Southwest China's karst region, ranking among the nation's three primary ecological challenges alongside soil erosion and desertification. The government initiated the Rocky Desertification Treatment Program in 2008, lacking a comprehensive evaluation of its benefits. This study evaluates
Jingyi Chang +6 more
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Runoff and erosion processes on bare slopes in the Karst Rocky Desertification Area
CATENA, 2017Underground pore fissure and bedrock bareness are the main factors that lead to complicated mechanisms of soil erosion in karst regions. The objectives of this study were as follows: a) to measure runoff and sediment generated from the surface and underground in the karst bare slope; and b) to analyse the impacts of underground pore fissures and ...
Quanhou Dai +3 more
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Fractal characteristics and stability of soil aggregates in karst rocky desertification areas
Natural Hazards, 2012Karst rocky desertification is one of the major ecological and environmental problems that threaten the sustainable development of southwestern China. This study focuses on a case study of the small watershed in Chenqi where karst rocky desertification is particularly severe. This paper considers samples of soils from six different land use patterns in
Yiqun Tang +5 more
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