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Karst Rocky Desertification Progress: Soil Calcium as a Possible Driving Force
Science of the Total Environment, 2019Karst rocky desertification is a severe irreversible ecosystem failure. The karst ecosystem is so fragile that it is vulnerable to environmental changes, degrading into rocky desertification. Prior studies revealed the potential connections between the soil bacterial community, the edaphic properties and the aboveground vegetation cover in the karst ...
Yin Yi, Jing Tang, Xiaoxin Tang
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Rocky desertification exponential model in Karst area
2012 IEEE International Geoscience and Remote Sensing Symposium, 2012It was noticed long time ago that Karst rocky desertification is gradually developed into the third-largest ecological problem. Remote sensing is mostly used in the research of Karst desertification. However, the previous research used original imagery, so it cannot effectively interpret the characteristic of rocky desertification.
Guoqing Zhou 0001, Yanli Ma
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Soil Quality Assessment and Management in Karst Rocky Desertification Ecosystem of Southwest China
Forests, 2022 Karst rocky desertification is a common phenomenon in terrestrial ecosystems, and the deterioration of soil quality has a serious side effect on the aboveground vegetation and underground environmental factors.
Wei Zheng, Chengjiao Rao
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Fuzzy Bayesian network classifier for extraction of rocky desertification
SPIE Proceedings, 2009Aiming at the complexity and uncertainty in the interpretation of rocky desertification from multi-source data, this paper promotes fuzzy Bayesian network embedded Gaussian mixture model(GMM) for extracting rocky desertification information.This model make a fuzzy quantization for continuous variable through GMM, use the convex function of multiple ...
Shui-ming Li +3 more
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Estimate ecological indicators of karst rocky desertification by spectral unmixing algorithm
SPIE Proceedings, 2013Coverage rates of vegetation and exposed bedrock are two key indicators of karst rocky desertification (KRD) environments. Based on spectral unmixing algorithm, abundance of vegetation and exposed rock were retrieved from the hyperspectral Hyperion image.
Xia Zhang +3 more
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Science of The Total Environment, 2021
Vegetation recovery and poverty alleviation are critical problems in the karst national designed poor counties (NPDC) in southwest China. However, little information is available about the relationship between poverty and vegetation dynamics in these areas. In this study, we used remote sensing and statistical datasets from 2000 to 2015 to identify the
Sen Zhao +3 more
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Vegetation recovery and poverty alleviation are critical problems in the karst national designed poor counties (NPDC) in southwest China. However, little information is available about the relationship between poverty and vegetation dynamics in these areas. In this study, we used remote sensing and statistical datasets from 2000 to 2015 to identify the
Sen Zhao +3 more
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Comprehensive Assessment of Rocky Desertification Treatment in Southwest China Karst
Land Degradation and 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
Kelin Wang, Xiangkun Qi, Chujie Liao
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Causes and Prevention Measures of Rocky Desertification in Bijie, China
Vegetos- An International Journal of Plant Research, 2014Bijie is located in the northwest of Guizhou Province in western China. Biejie Experimental Area was founded by Hu Jintao, the former secretary of Guizhou provincial Party committee in as a prelude to Western Development. Bijie city has a large population but is backward in economy, which mainly caused by serious rocky desertification.
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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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