The western region of Mongolia is the homeland of endangered species including saiga, and snow leopard. In other words, this region is the habitat to support healthy populations of threatened wildlife. Therefore, this investigation is significant to detect the quality and degradation of habitat for this region. The aim of this study is to assess habitat quality using a tool to support decision making process. In this study, we used widely used two models: Integrated Valuation of Ecosystem Services and Trade-offs (InVEST)-based habitat quality model and Analytical hierarchy process (AHP). Geographic information system (GIS)-based AHP model was used to estimate the weight of each threat. InVEST-based habitat quality model was used to integrate information on land use and land cover (LULC) and threats to biodiversity to assess habitat quality for the given area. For the data analysis, eight threats were prepared (urban land, mining area, paved and unpaved roads, cropland, location of herders, and nightlight). The raster data were obtained from Landsat Operational Land Imager (OLI) imagery, Google Earth map, and geodatabase of Mongolia. Those raster files of the distribution and intensity of each threat, with values between 0 and 1. After estimation of the weighted value of each threat, we assessed threat impact on specific LULC types. The weighted value is created applying the Eigen vector that is determined each threat impact on the habitat. Finally, we generated two spatial distribution maps: habitat quality and habitat degradation. The results showed that high-quality habitats were detected in the special protected areas and low-density locations of herder camp. Most low-quality habitats were detected in the overlapped human activity areas. A large size of study area were highly affected by unpaved road impacts. Our study results of habitat quality and habitat degradation maps are valuable information that will contribute to developing nature conservation planning and improving ecosystem services.

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Зохиогч Munkhdulam Otgonbayar, Batnyam Tseveengerel, Purevsuren Munkhtur, Davaagatan Tuyagerel
Арчлагч М.Пүрэвсүрэн
Сүүлийн шинэчлэл 2021 11-р сар 1, 02:43 (UTC)
Үүссэн 2021 11-р сар 1, 02:42 (UTC)