Abstract:Based on the need of water area protection and the limitation of the current delimitation method, taking Xinqiao Town as a case study, the delimitation method of small-scale water area protection was studied. Based on the classification and identification of water area, regional functional orientation, demand analysis of water surface ratio, and land use analysis, the set of influence factors was established, the value and weight of the influence factor were assigned, and the boundary of water area protection was delimitated using GIS overlay analysis technology. This study is based on the method of systematically quantitative analysis, influence factor assessment, and GIS analysis techniques and the delimitation result, which is with more maneuverability, pertinence, and spreadability, meets the needs of various types of water area protection. This study avoids the shortage of the delimitation of water area protection with single standard, providing supports for medium-scale and large-scale studies.