Suitability assessment for siting water harvesting ponds

(Case of Erdenetsagaan soum, Sukhbaatar aimag)

Abstract

This paper represents test results of methodology for identifying suitable sites for the water harvesting pond
using the "Multi-Criteria Analysis" in Geographical Information System. In order to do this, the objectives of
the identification of harvesting sites were (i)to estimate constraint map (ii) to identify the multi-factor map and
(iii) to measure the overall value of the suitability. According to the results of the assessment of the water
harvesting suitability, 10.23%or 173736 hectares area of Erdenetsagaan soum of Sukhbaatar aimag(province)
are suitable, and 22.71% or 385534 ha area is moderately suitable, and 33.29%or 565198 ha land is limited for
pond construction and 33.78% or 573532 ha territory is unsuitable for water harvesting.