Assessing Vegetation Change from 2005 to 2024 Using Remote Sensing and Geographic Information Systems: A Case Study of the Phung River Basin, Sakon Nakhon Province
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This study enhances the detection of vegetation changes in Thailand’s Phung River Basin, Sakon Nakhon province, by applying the Normalized Difference Vegetation Index (NDVI) within a GIS and remote sensing framework from 2005 to 2024. NDVI, a globally recognized indicator of vegetation health and ecological conditions, was calculated using multi-temporal Landsat imagery. The analysis classified vegetation into five density categories across five time points—2005, 2010, 2015, 2020, and 2024—revealing significant ecological shifts. Dense vegetation increased notably from 11.39% to 20.58%, while areas with moderate and sparse vegetation declined. These changes aligned with demographic trends, including population growth from 2005 to 2020 and a sharp 24% decrease from 2020 to 2024, as well as the implementation of stricter land-use policies. By integrating NDVI-derived analysis, GIS-based spatial modeling, and NDVI change detection, the study substantially improved the monitoring of vegetation dynamics. This approach enabled precise identification of degradation and regeneration zones, offering a practical model for sustainable land management. The methodology presents a scalable tool for other tropical watersheds, supporting regional sustainability strategies across Southeast Asia. The results indicate that vegetation dynamics within the Phung River Basin are closely associated with human-driven activities, notably agricultural expansion and the implementation of land-use regulations. These findings provide essential baseline information to support the development of effective and sustainable forest management policies moving forward.
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- เนื้อหาและข้อมูลในบทความที่ตีพิมพ์ในวารสารวิทยาศาสตร์และเทคโนโลยีนายเรืออากาศ ถือเป็นข้อคิดเห็นและความรับผิดชอบของผู้เขียนบทความโดยตรง กองบรรณาธิการวารสาร ไม่จำเป็นต้องเห็นด้วย หรือร่วมรับผิดชอบใด ๆ
- บทความ ข้อมูล เนื้อหา รูปภาพ ฯลฯ ที่ได้รับการตีพิมพ์ในวารสารวิทยาศาสตร์และเทคโนโลยีนายเรืออากาศถือเป็นลิขสิทธิ์ของวารสารวิทยาศาสตร์และเทคโนโลยีนายเรืออากาศ หากบุคคลหรือหน่วยงานใดต้องการนำทั้งหมดหรือส่วนหนึ่งส่วนใดไปเผยแพร่ หรือเพื่อกระทำการใด ๆ จะต้องได้รับอนุญาตเป็นลายลักอักษรณ์จากวารสารวิทยาศาสตร์และเทคโนโลยีนายเรืออากาศ ก่อนเท่านั้น
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