For the convenience of analysis, the studied region was divided into 8 landscape elements, such as cultivated land. wasteland, village and town, saltern, shrimp pond, mudflat, reservoir and pond, and river and ditch.

• 将研究区域分为耕地、荒地、村镇、盐田、虾池、滩涂、库塘以及河流沟渠8个景现要素。