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Reducing Vulnerability to Desertification by Using the Spatial Measures in a Degraded Area in Thailand

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  • Saowanee Wijitkosum

    (Environmental Research Institute, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand)

Abstract

The process of desertification is complex, involving interaction between many factors, both environmental and anthropogenic. However, human activities, especially from land-use change and inappropriate land use, are the most influential factors associated with the desertification risk. This study was conducted in Huay Sai, a degraded land in Thailand. The Environmentally Sensitive Area Index (ESAI) model incorporating Geogracphic Information System (GIS) was applied to investigate and map the desertification sensitivity area. The study aimed to analyze and assess measures to reduce the desertification risk. This study emphasized three group factors with nine subcriteria influencing desertification risk: soil (texture, fertility, drainage, slope gradient, and depth), climatic (precipitation and aridity index), and vegetation factors (land use and soil erosion). In terms of the required spatial measures to reduce the desertification vulnerability, policy and defensive measures that were closely related to drought and desertification of the area were considered. Three main measures covering soil and water conservation, soil improvement, and reforestation were implemented. The area development and restoration plans have been implemented continuously. The study found that 47.29% of the Huay Sai area was at a high risk, with a further 41.16% at a moderate risk. Implementation of three measures indicated that desertification risk was significantly decreased. Addressing the causes of the highest risk areas could help reduce the overall desertification risk at Huay Sai, where most areas would then be at either a moderate (61.04%) or low (32.43%) desertification risk with no severe- or high-risk areas. The success of the area restoration is from the formulation of a restoration and development plan that understands the local conditions. Moreover, the plan integrated the restoration of the soil, forests, and water together in order to restore the ecosystem so that the implementation was able to solve problems directly.

Suggested Citation

  • Saowanee Wijitkosum, 2020. "Reducing Vulnerability to Desertification by Using the Spatial Measures in a Degraded Area in Thailand," Land, MDPI, vol. 9(2), pages 1-20, February.
    • Handle: RePEc:gam:jlands:v:9:y:2020:i:2:p:49-:d:318635
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    References listed on IDEAS

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    1. Xiaoming Feng & Bojie Fu & Shilong Piao & Shuai Wang & Philippe Ciais & Zhenzhong Zeng & Yihe Lü & Yuan Zeng & Yue Li & Xiaohui Jiang & Bingfang Wu, 2016. "Revegetation in China’s Loess Plateau is approaching sustainable water resource limits," Nature Climate Change, Nature, vol. 6(11), pages 1019-1022, November.
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    Cited by:

    1. Shidong Liu & Jianjun Zhang & Jie Zhang & Zheng Li & Yuhuan Geng & Yiqiang Guo, 2021. "Assessing Controversial Desertification Prevention Policies in Ecologically Fragile and Deeply Impoverished Areas: A Case Study of Marginal Parts of the Taklimakan Desert, China," Land, MDPI, vol. 10(6), pages 1-22, June.
    2. Margherita Carlucci & Rosanna Salvia & Giovanni Quaranta & Luca Salvati & Vito Imbrenda, 2022. "Official statistics, spatio-temporal dynamics and local-scale monitoring: toward integrated environmental-economic accounting for land degradation," Letters in Spatial and Resource Sciences, Springer, vol. 15(3), pages 469-491, December.
    3. Shaoqing Wang & Yanling Zhao & He Ren & Shichao Zhu & Yunhui Yang, 2023. "Identification of Ecological Risk “Source-Sink” Landscape Functions of Resource-Based Region: A Case Study in Liaoning Province, China," Land, MDPI, vol. 12(10), pages 1-23, October.
    4. Gerson Meza Mori & Cristóbal Torres Guzmán & Manuel Oliva-Cruz & Rolando Salas López & Gladys Marlo & Elgar Barboza, 2022. "Spatial Analysis of Environmentally Sensitive Areas to Soil Degradation Using MEDALUS Model and GIS in Amazonas (Peru): An Alternative for Ecological Restoration," Sustainability, MDPI, vol. 14(22), pages 1-20, November.

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