Increased nitrogen use efficiency in crop production can provide economic and environmental benefits

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 758, P. 143602 - 143602

Published: Nov. 11, 2020

Language: Английский

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Hysteresis Patterns of Watershed Nitrogen Retention and Loss Over the Past 50 years in United States Hydrological Basins

Global Biogeochemical Cycles, Journal Year: 2021, Volume and Issue: 35(4)

Published: March 22, 2021

Abstract Patterns of watershed nitrogen (N) retention and loss are shaped by how biogeochemical processes retain, biogeochemically transform, lose incoming atmospheric deposition N. Loss patterns represented concentration, discharge, their associated stream exports important indicators integrated N behaviors. We examined continental United States (CONUS) scale (e.g., wet dry deposition), vegetation trends, trends as potential N‐saturation conditions, losses vary over space time. By synthesizing changes modalities in based on data from 2200 U.S. watersheds a 50 years record, our work revealed two N‐retention loss. One was hysteresis pattern that reflects the influence hydrology, inputs, land‐use, temperature, elevation, vegetation. The other one‐way transition to new state. found regions with increasing health/biomass have highest capacity, become increasingly N‐saturated time, strongest declines exports—a pattern, is, consistent across all land cover categories. provide conceptual model, validated at an unprecedented CONUS links instream signals upstream mechanistic landscape processes. Our can aid future interpretation in‐stream concentrations DOC DIN status integrators hydrobiogeochemical

Language: Английский

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Global forest restoration opportunities to foster coral reef conservation

Global Change Biology, Journal Year: 2021, Volume and Issue: 27(20), P. 5238 - 5252

Published: Aug. 4, 2021

Sediment runoff from disturbed coastal catchments is a major threat to marine ecosystems. Understanding where sediments are produced and they delivered enables managers design more effective strategies for improving water quality. A management strategy targeted restoration of degraded terrestrial areas, as it provides opportunities reduce land-based areas consequently foster coral reef conservation. To do this strategically, systematic approach needed identify watersheds actions will provide the highest conservation benefits reefs. Here, we develop identifying global forest that would also result in large decreases flux We estimate how land-use change affects sediment globally using high-resolution spatial data determine subsequent risk exposure on reefs diffusion-based ocean transport model. Our results reveal export issue affecting 41% globally. The main with predominantly located Southeast Asian countries, Indonesia Philippines accounting 52% near show restoring across multiple could help 63,000 km2 Although reforestation discharge onto relatively small watersheds, possible achieve reduction by strategically targeting regions high density corals coast. Thus, not necessarily come produce export. These analyses key generating informed action support both international policy national activities.

Language: Английский

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Regional patterns and drivers of total nitrogen trends in the Chesapeake Bay watershed: Insights from machine learning approaches and management implications

Water Research, Journal Year: 2022, Volume and Issue: 218, P. 118443 - 118443

Published: April 9, 2022

Language: Английский

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A systematic review and meta-analysis of the direct effects of nutrients on corals

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 856, P. 159093 - 159093

Published: Sept. 30, 2022

Language: Английский

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