Vegetation persistence and carbon storage: Implications for environmental water management for Phragmites australis

摘要: Environmental water allocations are used to improve the ecological health of wetlands. There is now increasing demand for ecosystem productivity and respiration, enhance carbon sequestration. Despite global recognition wetlands as sinks, information regarding dynamics lacking. This first study estimating sequestration semiarid Phragmites australis reedbeds. The combined aboveground biomass assessments with stable isotope analyses soils modeling using Normalized Digital Vegetation Index (NDVI) investigate capacity environmental storage. considered relationships between soil organic (SOC), sources, reedbed persistence in Macquarie Marshes, a regulated floodplain Murray-Darling Basin, Australia. SOC storage levels 1 m depth were higher persistent reedbeds (167 Mg ha−1) than ephemeral (116–138 ha−1). In situ P. was predominant source surface at reedbeds; mixed sources proposed 13C enrichment occurred may not relate flow characteristics. high reedbeds, differences rate accretion contributed significantly rates (approximately 554 465 g m−2 yr−1) compared (5.17 yr−1). However, under current regimes, rapid cannot be maintained. Effective management Marshes more generally.