A5059661634- Soil and Water Nutrient Dynamics
- Hydrology and Watershed Management Studies
- Fish Ecology and Management Studies
- Marine and coastal ecosystems
- Water Quality and Pollution Assessment
- Groundwater and Isotope Geochemistry
- Marine Biology and Ecology Research
- Coastal wetland ecosystem dynamics
- Environmental and Agricultural Sciences
- Water Quality and Resources Studies
- Marine and fisheries research
- Soil erosion and sediment transport
- Environmental Changes in China
- Radioactive element chemistry and processing
- Water Quality Monitoring and Analysis
- Geoscience and Mining Technology
- Geology and Paleoclimatology Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Oceanographic and Atmospheric Processes
- Hydrological Forecasting Using AI
- Polymer Surface Interaction Studies
- Mine drainage and remediation techniques
- Wastewater Treatment and Nitrogen Removal
- Flood Risk Assessment and Management
- Urban Stormwater Management Solutions
Xinjiang Agricultural University
2025
Hunan University of Technology
2025
Chesapeake Bay Program
2017-2024
Wuhan University of Technology
2024
Environmental Protection Agency
2017-2024
University of Maryland Center for Environmental Science
2018-2024
Suzhou University of Science and Technology
2011-2024
Sichuan University of Science and Engineering
2023
Southwest Forestry University
2022-2023
Chang'an University
2007-2023
Abstract This review aims to synthesize the current knowledge of sediment dynamics using insights from long‐term research conducted in watershed draining Chesapeake Bay, largest estuary U.S., inform management actions restore and its watershed. The are typical many impaired watersheds estuaries around world, this synthesis is intended be relevant transferable other sediment‐impaired systems. watershed's sources, transport, delivery, impacts discussed with implications for effectively...
Abstract In the Chesapeake Bay, excess nitrogen (N) from both landscape and atmospheric sources has for decades fueled algal growth, disrupted aquatic ecosystems, negatively impacted coastal economies. Since 1980s, Bay Program partners have worked to implement a wide range of measures across region—from upgrading wastewater treatment plants implementation farm-level best management practices—to reduce N fluxes Bay. Despite widespread such notable reductions in inputs, water quality region...
Understanding drivers of water quality in local watersheds is the first step for implementing targeted restoration practices. Nutrient inventories can inform management decisions by identifying shifts nitrogen (N) and phosphorus (P) balances over space time while also keeping track likely urban agricultural point nonpoint sources pollution. The Chesapeake Bay Program's Assessment Scenario Tool (CAST) provides N P balance data counties throughout watershed, these were leveraged to create a...
Abstract To assess historical loads of nitrogen (N), phosphorus (P), and suspended sediment ( SS ) from the nontidal Chesapeake Bay watershed NTCBW ), we analyzed decadal seasonal trends flow‐normalized at fall‐line nine major rivers that account for >90% flow. Evaluations by season revealed N, P, load magnitudes have been highest in January‐March lowest July‐September, but temporal followed similar decadal‐scale patterns all seasons, with notable exceptions. Generally, total N TN has...
Abstract Accurate quantification of riverine water‐quality concentration and flux is challenging because monitoring programs typically collect data at lower frequencies than discharge data. Statistical methods are often used to estimate on days without observations. One recently developed approach the Weighted Regressions Time, Discharge, Season (WRTDS), which has been shown provide among most accurate estimates compared other common methods. The main objective this work was improve WRTDS...
Understanding the temporal and spatial roles of nutrient limitation on phytoplankton growth is necessary for developing successful management strategies. Chesapeake Bay has well-documented seasonal variations in limitation, but it remains unknown whether these patterns have changed response to efforts. We analyzed historical data from bioassay experiments (1992–2002) long-term, fixed-site water-quality monitoring program (1990–2017) develop empirical approaches predicting surface waters...
In Chesapeake Bay in the United States, decades of management efforts have resulted modest reductions nutrient loads from watershed, but corresponding improvements estuarine water quality not consistently followed. Generalized additive models were used to directly link river flows and watershed trends estuary on a station-by-station basis, which allowed for identification exactly when where responses are happening. Results show that Bay's total nitrogen phosphorus conditions mostly improving...
Abstract For over three decades, Chesapeake Bay (USA) has been the focal point of a coordinated restoration strategy implemented through partnership governmental and nongovernmental entities, which classical model for coastal worldwide. This synthesis aims to provide resource managers estuarine scientists with clearer perspective magnitude changes in water quality within watershed, including nitrogen (N), phosphorus (P), sediment River Input Monitoring (RIM) watershed unmonitored below‐RIM...
Eutrophication has been a major environmental issue in many coastal and inland ecosystems, which is primarily attributed to excessive anthropogenic inputs of nutrients. Restoration efforts have therefore focused on the reduction watershed nutrient loads, including Chesapeake Bay (USA). To facilitate management, models are often developed used assess expected impact scenarios past future management policies practices conditions. However, level load reductions estimated using monitoring data...
Reduction of suspended sediment (SS), total phosphorus (TP), and nitrogen is an important focus for Chesapeake Bay watershed management. The Susquehanna River, the bay's largest tributary, has drawn attention because SS loads from behind Conowingo Dam (near river's mouth) have been rising dramatically. To better understand these changes, we evaluated histories concentration loading (1986–2013) using data sites above below Reservoir. First, observed concentration-discharge relationships show...
Abstract Derived from river monitoring data, concentration‐discharge ( C‐Q ) relationships are powerful indicators of export dynamics. Proper interpretation such can be made complex, however, if the ln (C)‐ (Q) nonlinear or change over time, season, discharge. Methods addressing these issues by “binning” data introduce artifacts that obscure underlying interactions among discharge, and season. Here we illustrate propose an alternative method uses regression coefficients recently developed...
The 1815 eruption of the Tambora volcano led to "Year without a Summer" and caused serious crop failure famines in 1816 across Europe North America. However, few reports are available on Tambora's influence China despite region's susceptibility monsoonal volcanic perturbation. This study presents systemic analysis climatic related social responses perturbation China, by using two independent lines proxy records projecting top impacts averaged over all tropical eruptions past millennium. Both...
This paper develops a simple multi-product pricing model and take the Permanent Normal Trade Relationship (PNTR) granted by US to China as quasi-natural experiment study effect of Policy Uncertainty (TPU) on firm-product export markup. We find TPU decline can significantly increase markup, core products' markup is greater than that non-core products. affects through price cost effects, pass-through effects product-mix adjustment effect. statistically economically raises level prices,...
<title>Abstract</title> The ubiquitous presence of high-iodine groundwater poses a risk to human health. Degradation organic matter through microbial activities is an important process iodine enrichment in systems. stable carbon isotope ratios have certain indicative significance for understanding the formation groundwater. This study aimed explore role microbiological processes enriching downstream Kuitun River China and employed isotopes assess influence biodegradation on enrichment....
Abstract. Reversed eutrophication, called oligotrophication, has widely been documented globally over the last 30 years in rivers, lakes, and estuaries. However, absence of a comprehensive harmonized dataset hindered deeper understanding its ecological consequences. To address this data gap, we developed OLIGOTREND database, which contains multi-decadal timeseries chlorophyll-a, nutrients (nitrogen phosphorus), related physicochemical parameters, totalling 4.3 million observations. These...