Assessing Ecological Security of Water Resource: Methodology and a Case Study of Jinan City in China

Ecological security is the basis for the sustainable use of water resource. Take Jinan city as a case, ecological security of water resource is studied in this paper. Firstly, on the basis of the Pressure-State-Response (P-S-R) Model, a system of 23 indexes on ecological security of water resource is established. Then, analytical hierarchy process (AHP) is used to determine the index weights, and relevant mathematical models are used to calculate the values of evaluation indicators. At last, the comprehensive values are divided into five grades to assess the state of ecological security of water resource in Jinan city in 2007. The results show: The comprehensive value of ecological security of water resource in Jinan city in 2007 is 0.6945. Ecological security of water resource in Jinan City in 2007 is in the "sensitive" state.