Monitoring Wetland Landscape Evolution Using Landsat Time-Series Data: A Case Study of the Nantong Coast, China

Minjing Wang (), Yanyan Kang, Zhuyou Sun, Jun Lei and Xiuqiang Peng
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Minjing Wang: School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China
Yanyan Kang: Observation and Research Station of East China Coastal Zone, Ministry of Natural Resources, Nanjing 210007, China
Zhuyou Sun: Observation and Research Station of East China Coastal Zone, Ministry of Natural Resources, Nanjing 210007, China
Jun Lei: Observation and Research Station of East China Coastal Zone, Ministry of Natural Resources, Nanjing 210007, China
Xiuqiang Peng: Observation and Research Station of East China Coastal Zone, Ministry of Natural Resources, Nanjing 210007, China

Sustainability, 2022, vol. 14, issue 21, 1-20

Abstract: Coastal wetlands not only have rich biodiversity and high productivity but also provide important ecological services. The monitoring of landscape changes can provide important support for the sustainable development of coastal zones. Landsat images from 1986 to 2017 were used to interpret the types of coastal wetlands in Nantong. A single dynamic degree and multiple landscape indices were calculated to analyze the rate of change and characteristics of each wetland type. The results demonstrate the following: (1) A Nantong wetland type system was established, which was divided into three major categories and eleven subcategories. (2) In general, natural wetlands, such as thatched and Suaeda salsa marshes, were extremely reduced, while artificial wetlands and non-wetlands with high human activity, such as breeding ponds, farmland, and construction land, increased significantly. (3) In the past 30 years, due to the influence of environmental pressures, such as population growth, land demand, and economic development, the major influencing factors of local landscape change have shifted from natural geographical factors to human activities and economic as well as social factors. Remote sensing wetland interpretation can be very helpful in monitoring the dynamic changes in coastal wetlands and can provide scientific support for the sustainable management of coastal zones.

Keywords: coastal wetland; landscape pattern; remote sensing; Nantong coast (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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