IJESD 2017 Vol.8(10): 719-723 ISSN: 2010-0264
doi: 10.18178/ijesd.2017.8.10.1045
doi: 10.18178/ijesd.2017.8.10.1045
Detecting Spatial and Temporal Change of NDVI Dynamics in the Mekong River Basin: Relationship with Anthropogenic Effects
Tawatchai Na-U-Dom and Xingguo Mo
Abstract—Beside climate effect on vegetation dynamics,
understanding spatial and temporal vegetation response to
human effect is also crucial for integrated basin management in
the Mekong River Basin (MRB). In this study, Normalized
Difference Vegetation Index (NDVI) images and climate data
from 1995 to 2004 were downloaded from a Global Inventory
Modeling and Mapping Study (GIMMS) and Climate Research
Unit Time Series version 3.23 (CRU-TS 3.23). The normalized
Human Influence Index (HII), was used as a proxy data for
anthropogenic effect, was downloaded from Global Human
Footprint Dataset (from 1995 to 2004). The residual NDVI
trend analysis (RESTREND) and Kruskal–Wallis one-way
analysis and Mann–Whitney U test for paired test were applied
for this study. The results showed that the human effect on
cropland, in northeast Thailand and the Mekong Delta, mostly
improved vegetation greenness. The forest ecosystem in Laos
and Myanmar reflected land degradation, which was caused by
high anthropogenic activities. Yet savanna and woody savanna,
grassland, and mixed forest ecosystems showed more greening
in low human activities areas. For a comparison of levels of
human effect in different vegetation types, he results showed the
evergreen forest ecosystem was the most sensitive with the level
of human activities. In addition, the vegetation shown
significant decreasing NDVI trend over 10 years (1995 to 2004)
in high human activities areas, except for cropland. Human
activities helped the cropland to grow.
Index Terms—Human activities, Mekong river basin, normalized human influence index, residual trend analysis, vegetation dynamics.
The authors are with the Institute of Geographic Sciences and Natural Resource Research, Chinese Academy of Sciences, and Sino – Danish College, University of Chinese Academy of Sciences, Beijing, China (e-mail: tawatchai_naudom@hotmail.com, moxg@igsnrr.ac.cn).
Index Terms—Human activities, Mekong river basin, normalized human influence index, residual trend analysis, vegetation dynamics.
The authors are with the Institute of Geographic Sciences and Natural Resource Research, Chinese Academy of Sciences, and Sino – Danish College, University of Chinese Academy of Sciences, Beijing, China (e-mail: tawatchai_naudom@hotmail.com, moxg@igsnrr.ac.cn).
Cite: Tawatchai Na-U-Dom and Xingguo Mo, "Detecting Spatial and Temporal Change of NDVI Dynamics in the Mekong River Basin: Relationship with Anthropogenic Effects," International Journal of Environmental Science and Development vol. 8, no. 10, pp. 719-723, 2017.
General Information
- ISSN: 2010-0264 (Print); 2972-3698 (Online)
- Abbreviated Title: Int. J. Environ. Sci. Dev.
- Frequency: Bimonthly
- DOI: 10.18178/IJESD
- Editor-in-Chief: Prof. Richard Haynes
- Managing Editor: Ms. Cherry L. Chen
- Indexing: Scopus (CiteScore 2022: 1.4), Google Scholar, CNKI, ProQuest, EBSCO, etc.
- E-mail: ijesd@ejournal.net
List group item headingWed
Some placeholder content in a paragraph below the heading and date.
List group item headingTues
Some placeholder content in a paragraph below the heading and date.
List group item headingMon
Some placeholder content in a paragraph below the heading and date.
List group item headingWed
Some placeholder content in a paragraph below the heading and date.
List group item headingTues
Some placeholder content in a paragraph below the heading and date.
List group item headingMon
Some placeholder content in a paragraph below the heading and date.
List group item headingWed
Some placeholder content in a paragraph below the heading and date.
List group item headingTues
Some placeholder content in a paragraph below the heading and date.
List group item headingMon
Some placeholder content in a paragraph below the heading and date.
List group item headingWed
Some placeholder content in a paragraph below the heading and date.
List group item headingTues
Some placeholder content in a paragraph below the heading and date.
List group item headingMon
Some placeholder content in a paragraph below the heading and date.
Call for Papers
When submitting papers for potential publication in IJESD, please submit an original editable file in .doc style file. All figures, tables, and equations, etc., should be embedded into the original file.