A5072087878- Seismic Waves and Analysis
- Methane Hydrates and Related Phenomena
- Ionosphere and magnetosphere dynamics
- Earthquake Detection and Analysis
- Seismology and Earthquake Studies
- Peatlands and Wetlands Ecology
- Coastal wetland ecosystem dynamics
- Hydrology and Watershed Management Studies
- Soil erosion and sediment transport
- Soil and Water Nutrient Dynamics
- Plant Water Relations and Carbon Dynamics
- Soil Carbon and Nitrogen Dynamics
- Hydrology and Sediment Transport Processes
- Fire effects on ecosystems
- Forest ecology and management
- Forest Ecology and Biodiversity Studies
- Remote Sensing and LiDAR Applications
- Oil Palm Production and Sustainability
- Forest Management and Policy
- Coastal and Marine Dynamics
- Conservation, Biodiversity, and Resource Management
- Flood Risk Assessment and Management
- Land Use and Ecosystem Services
- Seedling growth and survival studies
- Rangeland and Wildlife Management
US Forest Service
2016-2025
United States Department of Agriculture
2006-2025
Southern Research Station
2016-2025
College of Charleston
2006-2023
Southern Research Institute
2019-2023
Pacific Southwest Research Station
2023
Watershed
2023
Rocky Mountain Research Station
2022
University of Lisbon
2019
Northern Research Station
2014
Wetland ecosystems are an important component in global carbon (C) cycles and may exert a large influence on climate change. Predictions of C dynamics require us to consider interactions among many critical factors soil, hydrology, vegetation. However, few such integrated models exist for wetland ecosystems. In this paper, we report simulation model, Wetland‐DNDC, methane (CH 4 ) emissions The general structure Wetland‐DNDC was adopted from PnET‐N‐DNDC, process‐oriented biogeochemical model...
Abstract Both climate and plant species are hypothesized to influence soil organic carbon (SOC) quality, but accurate prediction of how SOC process rates respond global change will require an improved understanding quality varies with mean annual temperature (MAT) forest type. We investigated in paired hardwood pine stands growing coarse textured soils located along a 22 °C gradient MAT. To do this, we conducted 80‐day incubation experiments at 10 30 quantify decomposition rates, which used...
Coastal mangrove forests provide important ecosystem goods and services, including carbon sequestration, biodiversity conservation, hazard mitigation. However, they are being destroyed at an alarming rate by human activities. To characterize forest changes, evaluate their impacts, support relevant protection restoration decision making, accurate up-to-date extent mapping large spatial scales is essential. Available large-scale data products use a single machine learning method commonly with...
Abstract Aim Mangrove wetlands span broad geographical gradients, resulting in functionally diverse tree communities. We asked whether latitudinal variation, allometric scaling relationships and species composition influence mangrove forest structure biomass allocation across biogeographical regions distinct coastal morphologies. Location Global. Time period Present. Major taxa studied ecosystems. Methods built the largest field‐based dataset on to date ( c . 2,800 plots from 67 countries)...
Mangroves' ability to store carbon (C) has long been recognized, but little is known about whether planted mangroves can C as efficiently naturally established (i.e., intact) stands and in which time frame. Through Bayesian logistic models compiled from 40 years of data built 684 mangrove worldwide, we found that biomass stock culminated at 71 73% intact ~20 after planting. Furthermore, prioritizing mixed-species planting including
Abstract Over 95% of original longleaf pine ( Pinus palustris ) (LLP) forests have been converted to other land uses, including loblolly taeda L (LOP), croplands, urban uses during the past two centuries in southeastern United States (U.S.) for socioeconomic developments. Restoring LLP represents a contemporary forest management objective improve wildlife habitat, water yield, and overall ecosystem services resilience changing climate. Given importance understanding ecohydrological processes...
Mangroves are ecologically and economically important forested wetlands with the highest carbon (C) density of all terrestrial ecosystems. Because their exceptionally large C stocks importance as a coastal buffer, protection restoration has been proposed an effective mitigation strategy for climate change. The inclusion mangroves in strategies requires quantification (both above belowground) changes to accurately calculate emissions sequestration. A growing number countries becoming...
Demand for mangrove forest resources has led to a steady decline in area over the past century. Land conversions form of agriculture, aquaculture and urbanization account much deforestation wetlands. However, natural processes at transition zone between land ocean can also rapidly change spread. In this study, we applied robust field-based carbon inventory new structural temporal remote sensing techniques quantify magnitude stocks major deltas across Africa Asia. From 2000–2016,...
Information on the status of and changes in mangroves is required for national international policy development, implementation evaluation. To support these requirements, a component Japan Aerospace Exploration Agency’s (JAXA) Kyoto Carbon (K&C) initiative has been to design develop capability Global Mangrove Watch (GMW) that routinely monitors reports local global extent mangroves, primarily basis observations by Japanese L-band synthetic aperture radar (SAR). The GMW aims are as...
Canopy height is one of the strongest predictors biomass and carbon in forested ecosystems. Additionally, mangrove ecosystems represent most concentrated reservoirs that are rapidly degrading as a result deforestation, development, hydrologic manipulation. Therefore, accuracy Height Models (CHM) over forest can provide crucial information for monitoring verification protocols. We compared four CHMs derived from independent remotely sensed imagery identified potential errors bias between...
Abstract Peatlands contain a significant fraction of global soil carbon, but how these reservoirs will respond to the changing climate is still relatively unknown. A picture variations in peat organic matter chemistry aid our ability gauge peatland response climate. The goal this research test hypotheses that (a) carbohydrate content, an indicator reactivity, increase with latitude and decrease mean annual temperatures, (b) while aromatic recalcitrance, vary inversely, (c) elevation have...
Mangroves are recognized for their valued ecosystem services provision while having the highest carbon density among forested ecosystems. Yet they increasingly threatened by deforestation, conversion to agriculture and development, reducing benefits provide local livelihoods, coastal protection climate change mitigation. Accordingly, accurate estimates of mangrove area fundamental developing strategies sustainable use, conservation Reducing Emissions from Deforestation Degradation (REDD+)....
Abstract Anthropogenic and environmental pressures on wetland hydrology may trigger changes in carbon (C) cycling, potentially exposing vast amounts of soil C to rapid decomposition. We measured CO 2 efflux ( R s ) continuously from 2009 2010 a lower coastal plain forested North Carolina, U.S., characterize its main drivers. To understand quantify the spatial variation due microtopography associated differences hydrology, measurements were conducted at three microsites along microtopographic...
The objective of this study is to estimate the biomass and carbon global-level mangroves as a special type wetland. Mangrove ecosystems play an important role in regulating cycling, thus having significant impact on global environmental change. Extensive studies have been conducted for estimation mangrove stock. However, at level has insufficiently investigated because spatial scale interest large most existing are based physically challenging fieldwork surveys that limited local scales....
Mangroves are recognized for their valued ecosystem services to coastal areas, and the functional linkages between those carbon stocks have been established. However, spatially explicit inventories necessary facilitate management protection of mangroves, as well providing a foundation payment service programs such REDD+. We conducted an inventory in mangroves within Pongara National Park (PNP), Gabon using stratified random sampling design based on forest canopy height derived from TanDEM-X...
Peatlands account for 15 to 30% of the world’s soil carbon (C) stock and are important controls over global nitrogen (N) cycles. However, C N concentrations known vary among peatlands contributing uncertainty inventories, but there few studies that relate peatland classification peat chemistry. We analyzed 436 cores sampled in 24 countries across six continents measured C, N, organic matter (OM) content at three depths down 70 cm. Sites were distinguished between northern (387) tropical (49)...