Deciphering the source contribution of organic matter accumulation in an urban wetland ecosystem
Bibliographic Data
A better understanding of the organic matter (OM) dynamics is a key to successful wetland management. We established the radiocarbon chronology ( 14 C) and vertical distribution of nitrogen (N), phosphorus (P), OM, and carbon to nitrogen ratio (C/N) in the sediment core retrieved from the Anchar Wetland, Kashmir Himalaya. The accelerator mass spectrometer (AMS) assisted 14 C dating of the sediment core showed 14 C age reversals related to occasional disturbances. The vertical distribution of various fractions revealed increased concentrations of organic carbon (OC), OM, and nutrients (N and P) in the upper part of the sediment core, largely related to increased anthropogenic inputs from the catchment areas during recent decades. Further, the low to high C/N ratio (1.3–36.4) suggests a combination of both the autochthonous and allochthonous inputs as the major contributors of OM to the wetland ecosystem. The linear regression model showed significant ( p Nadru ) and fishing, and terrestrial inputs (sewage disposal and fertilizer runoff) are the major factors controlling the distribution of organic fractions and nutrients. This study provides important insights into the sources and distribution of sedimentary OM and nutrients crucial for assessing the risks of pollution and for adopting the socially, politically, and scientifically robust strategies for the management of wetlands
Biology · Ecosystem · Nutrient · Organic matter · Sediment · Sedimentary organic matter · Total organic carbon · Wetland · Coastal wetland ecosystem dynamics · Environmental Science · Geology and Paleoclimatology Research · Isotope Analysis in Ecology · Ecology · Geology · Pollution
The freshwater reservoir effect in radiocarbon dating
Classification of lacustrine sediments based on sedimentary components
A revolutionary graphitisation system
The influence of 14C reservoir age on interpretation of paleolimnological records from the Tibetan Plateau
Effects of perennial aromatic grass species richness and microbial consortium on soil properties of marginal lands and on biomass production
Carbon and nitrogen signatures of sedimentary organic matter from Dali Lake in Inner Mongolia
Spatial variability of 14C reservoir effects in Tibetan Plateau lakes
Paleoenvironmental shifts spanning the last ~6000 years and recent anthropogenic controls inferred from a high-altitude temperate lake
Methods for Summarizing Radiocarbon Datasets
The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)
| Citations per year | 0.5 |
|---|---|
| Citation span | 2024 - 2024 (1) |
| Highly cited | No |