South China Karst

World Heritage Research

Discover scientific research and academic studies that deepen our understanding of South China Karst from its history and significance to its conservation, management, and contemporary challenges.

• Exploring social-ecological system resilience in South China Karst: Quantification, interaction and policy implication

  China's Grain to Green Program (GTGP), one of the world's largest payments for ecosystem services, has shown significant ecological benefits but its impact on social-ecological system (SES) resilience remains understudied. A new study quantifying SES resilience in South China Karst reveals an upward trend in social resilience from 2000 to 2020, particularly in social development, while ecological resilience remained stable despite slight declines in ecosystem services and increased landscape fragmentation. Spatially, nearly half of the counties exhibited mismatched SES resilience distributions, with an inverted U-shaped relationship indicating a threshold effect. The study also identifies four distinct zones for SES resilience—key optimization for social systems, safety zones, restoration zones, and ecological optimization—which suggest adaptive adjustments to GTGP could maximize future SES benefits. While GTGP positively reduced regional SES trade-offs, its effectiveness is limited by the overemphasis on converting farmland to forest and grassland.

  Chen, T., Wang, Y., & Peng, L. (2024). Exploring social-ecological system resilience in South China Karst: Quantification, interaction and policy implication. Geography and Sustainability, 5(2), 289–301. https://doi.org/10.1016/j.geosus.2024.01.003

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• Social-ecological heterogeneity drove contrasting tree cover restoration in South China Karst

  Social-ecological heterogeneity significantly influences tree cover restoration in the South China Karst, the world's largest continuous karst zone. The study found that only 33.67% of the area (652,457 km²) experienced increased tree cover, highlighting the challenges posed by carbonate geological constraints and the need to recognize synergies within social-ecological systems. Rural population decline in undeveloped areas was identified as a key driver for restoration. Additionally, the correlation degree of social-ecological networks was lower in karst areas compared to non-karst areas, indicating higher heterogeneity in these systems. These findings underscore the importance of shifting focus from natural ecosystems to coupled social-ecological systems for sustainable forest management.

  Hu, T., Peng, J., Qiu, S., Dong, J., Hu, Y., Lin, Y., & Xia, P. (2024). Social-ecological heterogeneity drove contrasting tree cover restoration in South China Karst. Communications Earth & Environment, 5(1). https://doi.org/10.1038/s43247-024-01641-y

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• Balancing the Effects of Forest Conservation and Restoration on South China Karst Greening

  A study reveals that forest conservation and restoration have significantly contributed to vegetation greening in South China Karst, with conservation accounting for 39.85% of the increase compared to just 6.05% from restoration. The research, spanning 2000–2020, analyzed land use data, forest cover loss, and Leaf Area Index (LAI) using Moderate Resolution Imaging Spectroradiometer (MODIS) data. It found a nonlinear, inverted U-shaped relationship between conservation and restoration effects across provinces, suggesting that balancing both strategies is crucial for effective ecological engineering. This finding provides a scientific basis for differentiated planning to optimize greening outcomes in karst regions.

  Peng, J., Hu, T., Qiu, S., Hu, Y., Dong, J., & Lin, Y. (2023). Balancing the Effects of Forest Conservation and Restoration on South China Karst Greening. Earth’s Future, 11(6). Portico. https://doi.org/10.1029/2023ef003487

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• Rural outmigration generates a carbon sink in South China karst

  Rural outmigration in South China Karst has been identified as a significant driver of increasing aboveground biomass, contributing to the generation of a carbon sink at a regional scale. Between 2005 and 2015, while the urban population increased by 8.3 million people, the rural population decreased by 4.8 million, leading to a notable reduction in rocky desertification areas. The study, utilizing local field and statistical data from 2000 to 2017, found an almost linear relationship between rural outmigration and biomass increase, with the highest aboveground biomass density increase (1.5 MgC ha −1 yr −1) observed in areas with the highest rural outmigration. This research challenges the conventional view that ecological conservation projects are the primary driver of increasing vegetation cover, highlighting instead the unintended positive environmental impacts of population movements.

  Chang, J., Yue, Y., Tong, X., Brandt, M., Zhang, C., Zhang, X., Qi, X., & Wang, K. (2023). Rural outmigration generates a carbon sink in South China karst. Progress in Physical Geography: Earth and Environment, 47(5), 655–667. https://doi.org/10.1177/03091333231154177

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• Synergy and regulation of the South China Karst WH site integrity protection and the buffer zone agroforestry development

  Research on the South China Karst World Heritage site reveals a strong, positive synergy between heritage integrity protection and agroforestry development in buffer zones. The study, conducted across Shibing and Libo–Huanjiang karst sites from 2020 to 2023, used remote sensing, GIS analysis, and coupling coordination models to assess their interconnected relationship. Findings indicate that while agroforestry lags slightly behind heritage protection efforts, both are mutually influential and developing harmoniously. This suggests that balanced agroforestry practices can support rural livelihoods without compromising the site's outstanding universal value (OUV). The study proposes regulatory measures to enhance this synergy, offering a model for sustainable development in similar karst World Heritage areas.

  Xiong, K., Chen, D., Zhang, J., Gu, X., & Zhang, N. (2023). Synergy and regulation of the South China Karst WH site integrity protection and the buffer zone agroforestry development. Heritage Science, 11(1). https://doi.org/10.1186/s40494-023-01061-9

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• Village ecosystem vulnerability in karst desertification control: evidence from South China Karst

  Village ecosystems in South China Karst exhibit varying vulnerability levels under karst desertification control (KDC), with none-potential KDC areas showing mild vulnerability, while potential-mild and moderate-severe areas display moderate to high vulnerability. The study identifies topography, climate, forest coverage, landscape pattern, soil erosion, economic development, and human activities as key factors contributing to this vulnerability. By employing a susceptibility-exposure-lack of resilience model and entropy method, researchers constructed an index system to assess vulnerability levels and driving factors. Adaptive governance strategies were designed based on these findings to promote sustainable development in vulnerable village ecosystems.

  Tang, J., Xiong, K., Wang, Q., Chen, Y., & Wu, Q. (2023). Village ecosystem vulnerability in karst desertification control: evidence from South China Karst. Frontiers in Ecology and Evolution, 11. https://doi.org/10.3389/fevo.2023.1126659

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• A Study Revelation on Market and Value-Realization of Ecological Product to the Control of Rocky Desertification in South China Karst

  Ecological products derived from rocky desertification control in South China Karst not only mitigate environmental degradation but also deliver higher economic value than traditional industries, offering a sustainable model for poverty alleviation and rural revitalization. This study synthesizes the development of such products across key domains—industrial models, quality monitoring, market spaces, and value realization—while identifying critical gaps requiring further research. By integrating ecological and economic attributes, it proposes a framework to maximize the long-term benefits of rocky desertification control efforts, supported by national policies spanning multiple five-year plans.

  Shen, H., Liu, Z., Xiong, K., & Li, L. (2022). A Study Revelation on Market and Value-Realization of Ecological Product to the Control of Rocky Desertification in South China Karst. Sustainability, 14(5), 3060. https://doi.org/10.3390/su14053060

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• Dynamics of landscape ecological quality based on benefit evaluation coupled with the rocky desertification control in South China Karst

  A significant improvement in landscape ecological quality was observed in the South China Karst region from 2015 to 2020, with a comprehensive score rising from 0.539 to 0.662 due to effective rocky desertification control measures. The study applied spatial heterogeneity and landscape pattern theories to assess ecological quality at three levels: landscape stability, disturbance degree, and restoration ability. While overall progress was noted, areas of unused land and mining remained ecologically degraded, highlighting the negative impact of unsustainable activities like ore mining. Treatment strategies such as returning farmland to forest and agroforestry proved effective in enhancing ecological quality, particularly in northern and southern regions, though their benefits varied significantly. This research introduces a quantitative method for evaluating ecological quality in karst areas, offering insights for sustainable restoration efforts.

  Wu, Z., Zhu, D., Xiong, K., & Wang, X. (2022). Dynamics of landscape ecological quality based on benefit evaluation coupled with the rocky desertification control in South China Karst. Ecological Indicators, 138, 108870. https://doi.org/10.1016/j.ecolind.2022.108870

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• Evaluating the Accuracy and Spatial Agreement of Five Global Land Cover Datasets in the Ecologically Vulnerable South China Karst

  Global land cover datasets show significant discrepancies in accuracy and spatial agreement, particularly in ecologically vulnerable areas like the South China Karst. A study assessing five widely used datasets (CCI-LC, MCD12Q1, GlobeLand30, GlobCover, and CGLS-LC) found that while CGLS-LC was the most accurate overall, MCD12Q1 performed best in high-elevation or steep-slope regions. Accuracy declined with increasing landscape heterogeneity and was notably lower in karst areas compared to non-karst areas. These findings highlight the challenges in land cover mapping for complex terrains and provide guidance for future dataset fusion and regional sustainable development efforts.

  Liu, P., Pei, J., Guo, H., Tian, H., Fang, H., & Wang, L. (2022). Evaluating the Accuracy and Spatial Agreement of Five Global Land Cover Datasets in the Ecologically Vulnerable South China Karst. Remote Sensing, 14(13), 3090. https://doi.org/10.3390/rs14133090

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• Large scale rocky desertification reversal in South China karst

  Large-scale rocky desertification reversal has been achieved in the South China Karst region, primarily driven by extensive ecological protection efforts. Between 2005 and 2016, restoration projects led to a net decrease of 26.14% in areas affected by rocky desertification, with the extent of mitigation directly proportional to the intensity of restoration efforts. The study, combining field campaigns, satellite imagery analysis, and project statistics, demonstrated that human intervention significantly enhanced vegetation resilience and resistance against climate variations. This reversal underscores the critical role of targeted ecological initiatives in promoting sustainable development in one of the world's most rapidly changing karst landscapes.

  Yue, Y., Qi, X., Wang, K., Liao, C., Tong, X., Brandt, M., & Liu, B. (2022). Large scale rocky desertification reversal in South China karst. Progress in Physical Geography: Earth and Environment, 46(5), 661–675. https://doi.org/10.1177/03091333221083111

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• Evolution and determinants of ecosystem services: insights from South China karst

  A comprehensive analysis of the South China Karst (SCK) reveals significant improvements in ecosystem services (ES) from 1982 to 2018, driven by re-greening and rewilding efforts. Key ES metrics such as soil conservation (+8.12%), net primary productivity (+21.14%), and carbon storage (+0.86%) showed marked increases, while water yield (-13.23%) declined due to large-scale afforestation. Urban development further degraded habitat quality (-0.50%) and biodiversity (-1.91%). The study highlights that karst regions exhibit lower ES maintenance capacity compared to non-karst areas, with population distribution posing the greatest threat in karst landscapes and farming being a primary concern in non-karst regions. Improved vegetation coverage and increased precipitation positively influenced plant-carbon sequestration and water yield, respectively. Biodiversity was identified as a critical factor in sustaining ES. The research underscores the potential of nature-based solutions combined with targeted management strategies to mitigate ecosystem degradation and promote sustainable development.

  Zhang, S., Xiong, K., Qin, Y., Min, X., & Xiao, J. (2021). Evolution and determinants of ecosystem services: insights from South China karst. Ecological Indicators, 133, 108437. https://doi.org/10.1016/j.ecolind.2021.108437

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• Mechanism and Evolution of Soil Organic Carbon Coupling with Rocky Desertification in South China Karst

  Rocky desertification in South China Karst initially reduces soil organic carbon (SOC) storage but may later lead to SOC accumulation, depending on the severity. This counterintuitive finding emerged from an analysis of 1212 soil samples across five distinct karst landforms: karst low hills/virgin forest (KLH), peak-cluster depressions (KPCD), canyons (KC), plateau basins (KPB), and trough valleys (KTV). Researchers found that while SOC content decreases with increasing rocky desertification, light desertification stages may paradoxically enhance SOC accumulation. The study also revealed that slope position, gradient, and aspect significantly influence SOC distribution by affecting vegetation composition and desertification evolution. Notably, the KPCD landform exhibited the highest SOC storage capacity (10.79 kg·m−2), followed by KPB, KLH, KTV, and KC. These insights suggest that rocky outcrops control SOC dynamics, while environmental factors indirectly shape SOC content through their impact on vegetation and desertification processes.

  Wang, X., Huang, X., Xiong, K., Hu, J., Zhang, Z., & Zhang, J. (2021). Mechanism and Evolution of Soil Organic Carbon Coupling with Rocky Desertification in South China Karst. Forests, 13(1), 28. https://doi.org/10.3390/f13010028

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• Satellite‐Observed Major Greening and Biomass Increase in South China Karst During Recent Decade

  A significant greening and biomass increase has been observed in the South China Karst region, one of the largest globally, despite declining rainfall and soil moisture. Satellite data from 1999 to 2017 revealed a rise in vegetation cover from 69% to 81%, covering approximately 1.4 million km². This phenomenon, attributed to large-scale forestry and conservation efforts since 2002, has had profound implications for ecosystem services such as carbon storage, water filtration, and timber production. The study highlights the potential of national conservation policies in mitigating deforestation and climate change impacts on natural resources.

  Brandt, M., Yue, Y., Wigneron, J. P., Tong, X., Tian, F., Jepsen, M. R., Xiao, X., Verger, A., Mialon, A., Al‐Yaari, A., Wang, K., & Fensholt, R. (2018). Satellite‐Observed Major Greening and Biomass Increase in South China Karst During Recent Decade. Earth’s Future, 6(7), 1017–1028. Portico. https://doi.org/10.1029/2018ef000890

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• Response of soil physical-chemical properties to rocky desertification succession in South China Karst

  Soil physical-chemical properties in South China Karst exhibit a non-linear response to rocky desertification succession, initially deteriorating before improving with increased severity. Key indicators such as organic matter content, nitrogen levels, capillary moisture capacity, bulk density, and porosity show significant correlations and serve as critical factors in evaluating desertification degrees. The study proposes that bare rocks in extreme desertification environments act as nutrient sinks, challenging the assumption of continuous soil degradation. Researchers analyzed 45 sample plots across three karst landforms using chemical determination and mathematical statistics to uncover these patterns. Findings provide theoretical support for karst forest ecosystem protection and rocky desertification control.

  SHENG Maoyin, 盛茂银, LIU Yang, 刘洋, & XIONG Kangning, 熊康宁. (2013). Response of soil physical-chemical properties to rocky desertification succession in South China Karst. Acta Ecologica Sinica, 33(19), 6303–6313. https://doi.org/10.5846/stxb201305080979

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• South China Karst II

  South China Karst II reveals diverse geological and ecological insights across Yunnan's karst landscapes, from tropical cone karst to the stone forests of central regions and the high plateau karst of Tibet. The study highlights significant findings on soil erosion patterns, tufa formation, vegetation dynamics, and the age and sediment composition of karst caves. It also explores epikarst fauna and the preservation challenges of this natural heritage. Researchers employed a multidisciplinary approach, combining field studies with laboratory analyses to unravel the complex interactions between geological processes and biodiversity in these unique environments.

  Knez, M., Liu, H., & Slabe, T. (2011). South China Karst II. Carsologica. https://doi.org/10.3986/9789610503217

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