Identification of Potential Location of Pond Sites for Irrigating Agriculture and Forestry Land Based on Watershed Analysis Using GIS
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Date
2023-05-01
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German Mongolian Institute for Resouce and Technology
Abstract
The identification of potential locations for pond sites plays a crucial role in sustainable water resource management for irrigated agriculture and forestry land. This study focuses on utilizing watershed analysis techniques in combination with Geographic Information Systems (GIS) to identify suitable locations for constructing ponds. The objectives of the study are to assess water availability, identify suitable sites, and recommend areas for afforestation that uses near water sources. In this study, Watershed and Stream Network Analysis were done in the Kherlen Soum area in Khentii Province. Also using the ArcGIS program some additional analyses such as hillshade, slope, and basin delineation. Using the stream network analysis with the cadastral map of Kherlen soum and setting 3 criteria we determined the potential pond locations. After determining the potential pond sites we recommended 4 types of areas for the afforestation of the national movement of “Billion Tree” in Kherlen Soum. Recommended 4 types of areas are Unirrigated Self-Growing Tree Areas, Irrigated Growing Tree Areas, Forestation areas of Old Farmlands, and Kherlen River Irrigated areas. Using the Mongolian National Standard for Environment and Re-vegetation of destroyed land we estimated the standard for planting in one hectare as 722 units of trees and bushes. It will be a reserve forestation area for approximately 80 million units of trees and bushes by our rough calculation.