Karst ecosystem observation and assessment at local and regional scales

DOI: 10.35595/2414-9179-2019-2-25-43-47

Посмотреть или загрузить статью (Eng)

Об авторах

Kelin Wang

Institute of Subtropical Agriculture, Chinese Academy of Sciences,
No. 644 Yuanda Road (Sec.), Furong District, 410125, Changsha, China,
E-mail: kelin@isa.ac.cn

Yuemin Yue

Huanjiang Observation and Research Station for Karst Ecosystem, Chinese Academy of Science,
Huanjiang, 714900, Guangxi, China
E-mail: ymyue@isa.ac.cn

Martin Brandt

Department of Geosciences and Natural Resource Management, University of Copenhagen,
Copenhagen, Denmark,
E-mail: martin.brandt@mailbox.org

Xiaowei Tong

Department of Geosciences and Natural Resource Management, University of Copenhagen,
Copenhagen, Denmark,
E-mail: tongxiaowei1996@gmail.com

Аннотация

The highly sensitive and vulnerable karst ecosystem in Southwest China is one of the largest exposed carbonate rock areas (more than 0.54 million km²) in the world, hosting 220 million people. Rocky desertification is the most serious eco-environmental problems in China karst. For the ecological restoration and sustainable development of karst ecosystem, Huanjiang Observation and Research Station was established at 2 000 for the observation of ecosystem structures, processes and functions in China karst. With the long-term continuous observation, remote sensing and ecosystem models, we identified the changes of ecosystem spatial pattern, progresses and functions under the coupled impacts of climatic and human disturbances. The results showed that ecological restoration projects had positive effects on China karst restoration, especially at local and regional scales. The ecosystem structure and functions had been improved with the implementation of ecological restoration projects, despite a decline in rainfall and soil moisture in China karst. The vegetation greenness and carbon stock increased with conservation projects. China karst was one of the globally largest increases in vegetation cover and biomass. However, the water and soil conservation and biodiversity functions maybe increase slowly. It is needed for the comprehensive assessment for understanding of conservation projects’ functional and biodiversity effects. The other intervention that have the potential to enhance or generate wider positive effects of ecological restoration projects.

Ключ. слова

ecosystem assessment, long-term observation, remote sensing, ecosystem functions, China karst

Список литературы

  1. Fang J., Guo Z., Hu H., Kato T., Muraoka H., Son Y. Forest biomass carbon sinks in East Asia, with special reference to the relative contributions of forest expansion and forest growth. Global Change Biology, 2014. V. 20. P. 2019–2030.
  2. Jiang Z., Lian Y., Qin X. Rocky desertification in Southwest China: impacts, causes, and restoration. Earth-Science Reviews, 2014. V. 132, P. 1–12.
  3. Tong X., Wang K., Yue Y., Brandt M.S., Liu B., Zhang Ch., Liao Ch., Fensholt R. Quantifying the effectiveness of ecological restoration projects on long-term vegetation dynamics in the karst regions of Southwest China. International Journal of Applied Earth Observation and Geoinformation, 2017. No 54. P. 105–113.
  4. Xiao J. Satellite evidence for significant biophysical consequences of the “Grain for Green” Program on the Loess Plateau in China. Journal of Geophysical Research: Biogeosciences, 2014. V. 119 (12). P. 2261–2275.
  5. Yuan D.X., Jiang Y.J., Shen L.C. The Modern Karstology. Beijing: Science Press, 2016 (in Chinese).

Для цитирования: Wang K., Yue Yu., Brandt M., Tong X. Karst ecosystem observation and assessment at local and regional scales. ИнтерКарто. ИнтерГИС. Геоинформационное обеспечение устойчивого развития территорий: Материалы Междунар. конф. M: Издательство Московского университета, 2019. Т. 25. Ч. 2. С. 43–47 DOI: 10.35595/2414-9179-2019-2-25-43-47

For citation: Wang K., Yue Yu., Brandt M., Tong X. Karst ecosystem observation and assessment at local and regional scales. InterCarto. InterGIS. GI support of sustainable development of territories: Proceedings of the International conference. Moscow: Moscow University Press, 2019. V. 25. Part 2. P. 43–47. DOI: 10.35595/2414-9179-2019-2-25-43-47