Quantifying the Spatial Extent of Roads and Their Effects on the Vegetation in Mongolia’s Gobi Desert

Thirty years ago, Mongolia’s Gobi Desert was intact, roadless and had low traffic, and it was a refuge for many endangered and rare species. A large mining boom and significant livestock grazing are currently putting pressure on the desert. Mining products were transported by trucks on dirt (gravel)...

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Main Authors: Sainchuluu Amarsanaa, Ariuntsetseg Lkhagva, Bolorchuluun Chogsom, Batbileg Bayaraa, Byambasuren Damdin, Bolormaa Tsooj, Javkhlan Nyamjav, Batkhishig Baival, Chantsallkham Jamsranjav
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Land
Subjects:
Online Access:https://www.mdpi.com/2073-445X/11/6/820
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author Sainchuluu Amarsanaa
Ariuntsetseg Lkhagva
Bolorchuluun Chogsom
Batbileg Bayaraa
Byambasuren Damdin
Bolormaa Tsooj
Javkhlan Nyamjav
Batkhishig Baival
Chantsallkham Jamsranjav
author_facet Sainchuluu Amarsanaa
Ariuntsetseg Lkhagva
Bolorchuluun Chogsom
Batbileg Bayaraa
Byambasuren Damdin
Bolormaa Tsooj
Javkhlan Nyamjav
Batkhishig Baival
Chantsallkham Jamsranjav
author_sort Sainchuluu Amarsanaa
collection DOAJ
description Thirty years ago, Mongolia’s Gobi Desert was intact, roadless and had low traffic, and it was a refuge for many endangered and rare species. A large mining boom and significant livestock grazing are currently putting pressure on the desert. Mining products were transported by trucks on dirt (gravel) roads between 2000 and 2012. Emphasizing its importance in the Mongolian economy, a paved road was constructed in 2012 along the dirt road. Unfortunately, vegetation along the paved road was removed without restoration. In the desert, locals continue to use, create and extend dirt roads. The impact of these roads on the vegetation has yet to be studied. We estimated the spatial extent of the dirt-road corridors in three time intervals (the years 2010, 2015 and 2020) and evaluated the vegetation along both paved and dirt roads at three distances (100, 500, and 900 m) from the road. Within ten years, the length of paved roads and soil dirt roads nearly doubled, although the majority of them were developed and created between 2015 and 2020. A single track makes up around 42 percent of the soil road, whereas the remaining 58 percent are roads consisting of three to four tracks with an average width of 26.5 m. The vegetation along the paved road was lower in terms of species richness, canopy cover, and the basal gap between perennial plants and biomass, compared to the soil road. Although the effects of soil roads on the vegetation along the roads is less negative than the effects of the paved road, the corridors formed along the soil roads span a non-negligible area of pastureland in the region. The vegetation along the already-constructed paved road in the desert should be artificially reclaimed with the aim of expediting natural revegetation. Moreover, a “new legislation” is required to prevent continued degradation due to the ongoing creation and extension of soil road corridors by local populations in the desert.
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spelling doaj.art-38afeda2337c4b2f93fa5c69999516722023-11-23T17:31:09ZengMDPI AGLand2073-445X2022-05-0111682010.3390/land11060820Quantifying the Spatial Extent of Roads and Their Effects on the Vegetation in Mongolia’s Gobi DesertSainchuluu Amarsanaa0Ariuntsetseg Lkhagva1Bolorchuluun Chogsom2Batbileg Bayaraa3Byambasuren Damdin4Bolormaa Tsooj5Javkhlan Nyamjav6Batkhishig Baival7Chantsallkham Jamsranjav8Department of Ecology, School of Agroecology, Mongolian University of Life Sciences, Ulaanbaatar 17026, MongoliaDepartment of Biology, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar 14201, MongoliaDepartment of Geography, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar 14201, MongoliaDepartment of Land Management, School of Agroecology, Mongolian University of Life Sciences, Ulaanbaatar 17026, MongoliaDepartment of Land Management, School of Agroecology, Mongolian University of Life Sciences, Ulaanbaatar 17026, MongoliaThe Institute of Geography and Geoecology, Mongolian Academy of Sciences, Ulaanbaatar 15170, MongoliaFaculty of Environment and Natural Resources, University of Freiburg, 79085 Freiburg im Breisgau, GermanySustainable Fiber Alliance Mongolia, Ulaanbaatar 16010, MongoliaWildlife Conservation Society Mongolia, Ulaanbaatar 14200, MongoliaThirty years ago, Mongolia’s Gobi Desert was intact, roadless and had low traffic, and it was a refuge for many endangered and rare species. A large mining boom and significant livestock grazing are currently putting pressure on the desert. Mining products were transported by trucks on dirt (gravel) roads between 2000 and 2012. Emphasizing its importance in the Mongolian economy, a paved road was constructed in 2012 along the dirt road. Unfortunately, vegetation along the paved road was removed without restoration. In the desert, locals continue to use, create and extend dirt roads. The impact of these roads on the vegetation has yet to be studied. We estimated the spatial extent of the dirt-road corridors in three time intervals (the years 2010, 2015 and 2020) and evaluated the vegetation along both paved and dirt roads at three distances (100, 500, and 900 m) from the road. Within ten years, the length of paved roads and soil dirt roads nearly doubled, although the majority of them were developed and created between 2015 and 2020. A single track makes up around 42 percent of the soil road, whereas the remaining 58 percent are roads consisting of three to four tracks with an average width of 26.5 m. The vegetation along the paved road was lower in terms of species richness, canopy cover, and the basal gap between perennial plants and biomass, compared to the soil road. Although the effects of soil roads on the vegetation along the roads is less negative than the effects of the paved road, the corridors formed along the soil roads span a non-negligible area of pastureland in the region. The vegetation along the already-constructed paved road in the desert should be artificially reclaimed with the aim of expediting natural revegetation. Moreover, a “new legislation” is required to prevent continued degradation due to the ongoing creation and extension of soil road corridors by local populations in the desert.https://www.mdpi.com/2073-445X/11/6/820road effectsroadside vegetationvegetation parameters
spellingShingle Sainchuluu Amarsanaa
Ariuntsetseg Lkhagva
Bolorchuluun Chogsom
Batbileg Bayaraa
Byambasuren Damdin
Bolormaa Tsooj
Javkhlan Nyamjav
Batkhishig Baival
Chantsallkham Jamsranjav
Quantifying the Spatial Extent of Roads and Their Effects on the Vegetation in Mongolia’s Gobi Desert
Land
road effects
roadside vegetation
vegetation parameters
title Quantifying the Spatial Extent of Roads and Their Effects on the Vegetation in Mongolia’s Gobi Desert
title_full Quantifying the Spatial Extent of Roads and Their Effects on the Vegetation in Mongolia’s Gobi Desert
title_fullStr Quantifying the Spatial Extent of Roads and Their Effects on the Vegetation in Mongolia’s Gobi Desert
title_full_unstemmed Quantifying the Spatial Extent of Roads and Their Effects on the Vegetation in Mongolia’s Gobi Desert
title_short Quantifying the Spatial Extent of Roads and Their Effects on the Vegetation in Mongolia’s Gobi Desert
title_sort quantifying the spatial extent of roads and their effects on the vegetation in mongolia s gobi desert
topic road effects
roadside vegetation
vegetation parameters
url https://www.mdpi.com/2073-445X/11/6/820
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