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Environmental flows play an important role in sustaining or enhancing ecosystem services provided by wetlands. In this study, using an improved input-state-output approach, we evaluated ecosystem service values to assess the ability of freshwater releases to improve the ecosystem of China’s Yellow River Delta Wetlands. We used emergy analysis to value the inputs, state, and outputs of the ecosystem...
After tidal restriction in salt marshes, the composition of the vegetation changes from predominance of halophyte species to predominance of glycophytes. However, little is known about how different plant traits and stress types influence these vegetation changes. In this study, we propose the use of relative stress tolerance curves to couple stress tolerance and competitive abilities in a dynamic...
This paper proposes an integrated approach to the assessment of estuarine habitat suitability based on a fuzzy logic method. Specifically, fuzzy logic is used to construct the Habitat Suitability Index (HSI) as a supplementary metric when field data is scarce. The HSI is used in turn to build the Habitat Aggregation Index (HAI) that considers the internal patches and fragmentation of the habitat....
Freshwater supplementation is often used for wetland restoration and ecosystem health protection. Understanding temporal patterns of aquatic metabolism caused by freshwater supplementation may help optimize wetland restoration designs. We investigated the short-term changes in aquatic metabolism and potential driving factors at two sites dominated by Phragmites australis and Suaeda salsa, respectively,...
Using remote sensing and geographic information system technologies, we analyzed changes in ecosystem boundary conditions in the Yellow River Delta. We investigated variations in soil water, bulk density, total nitrogen, total phosphorus, and organic matter, as well as concentrations of soluble Ca2+, K+, Mg2+ and Na+, under different ecosystem conversions. Results indicated that from 1992 to 2006,...
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