Impacts of Climate Change and Human Activities on Vegetation Variation in the Sharyn Gol River Basin

DOI

10.2991/978-94-6463-278-1_7How to use a DOI?

Keywords

Impact of human activities; residual analysis; Sharyn Gol River Basin; Vegetation variation

Abstract

The Sharyn Gol River Basin in the central region of Mongolia is one of the economically important areas for agriculture, animal husbandry and mining. Due to its favourable natural condition and advantageous geographical location, the Sharyn Gol River Basin is under increased pressure from human activities. The aim of this study was to analyse spatial-temporal changes in vegetation and to determine the contributions of climate change and human activities to vegetation dynamics in the Sharyn Gol River Basin. We obtained a 16-day composite MODIS NDVI data set (MOD13Q1 product) acquired from the Land Process Distribution Active Archive Centre (LP DAAC) and ERA 5 reanalysis data (monthly average air temperature and monthly total precipitation) from the European Centre for Medium Range Weather Forecasts (ECMWF) with a spatial resolution of 0.1°x 0.1° lat/long. We used Sen’s slope, Mann-Kendal test, Ordinary least squares regression, and the RESTREND method to detect spatial-temporal changes in vegetation during the period 2000 to 2022 and assess the impacts of human activities and climate change on vegetation dynamics. We found that areas with significant (p<0.05) increases (p <0.05) in NDVI trends represented 35.5% of the total study area. The areas that experienced significant (p<0.05) decreases (p <0.05) in NDVI trends occupied 1.06% of the total study area. The remaining areas exhibited an insignificant increase and decrease in NDVI trends. The result of the RESTREND analysis indicated that the increasing trend in NDVI was generally driven by climate factors, while the decreasing trend in NDVI was likely driven by human activities.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Unurnyam Jugnee
PY  - 2023
DA  - 2023/10/29
TI  - Impacts of Climate Change and Human Activities on Vegetation Variation in the Sharyn Gol River Basin
BT  - Proceedings of the Fourth International Conference on Environmental Science and Technology (EST 2023)
PB  - Atlantis Press
SP  - 55
EP  - 66
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-278-1_7
DO  - 10.2991/978-94-6463-278-1_7
ID  - Jugnee2023
ER  -