A5032559958- Soil Carbon and Nitrogen Dynamics
- Soil and Water Nutrient Dynamics
- Rangeland Management and Livestock Ecology
- Soil and Unsaturated Flow
- Soil erosion and sediment transport
- Rangeland and Wildlife Management
- Soil Management and Crop Yield
- Bioenergy crop production and management
- Ruminant Nutrition and Digestive Physiology
- Agriculture Sustainability and Environmental Impact
- Ecology and Vegetation Dynamics Studies
- Agroforestry and silvopastoral systems
- Plant nutrient uptake and metabolism
- Atmospheric and Environmental Gas Dynamics
- Soil Geostatistics and Mapping
- Water-Energy-Food Nexus Studies
- Environmental Changes in China
- Hydrocarbon exploration and reservoir analysis
- Climate change and permafrost
- Agronomic Practices and Intercropping Systems
- Methane Hydrates and Related Phenomena
- Effects of Environmental Stressors on Livestock
- Agriculture, Soil, Plant Science
- Land Use and Ecosystem Services
- Crop Yield and Soil Fertility
South Dakota State University
2021-2024
Zhejiang Normal University
2024
University of Tennessee at Knoxville
2018-2022
Michigan State University
2016-2019
University of Florida
2014-2018
Universidade Federal do Piauí
2018
Brazilian Agricultural Research Corporation
2018
Universidade Federal de Sergipe
2018
Institute of Botany
2010
Chinese Academy of Sciences
2010
Proper management of grassland ecosystems for improved pasture productivity can also enhance their potential to serve as sinks anthropogenic carbon (C). We assessed the long-term (>22 yr) effects intensification (conversion native rangeland slash pine-bahiagrass silvopasture or bahiagrass-sown pasture) on above- and belowground C stocks in a subtropical ecoregion. Soil cores (0- 30-cm depth) were collected from five equidistant quadrats (20 × 20 m) established along diagonal transect within...
Core Ideas Soil management effects on depth distribution of SOC in southeastern US was studied. Significant response to long‐term tillage observed mostly the surface 5 cm. accumulation favored by corn and cotton systems than soybean down 22.5 Long‐term cover cropping did not increase total active SOC. There a strong significant positive relationship between POXC. organic carbon (SOC) content is strongly influenced agricultural practices. Leveraging three field experiments Tennessee, this...
Combined application of biochar and nitrogen (N) fertilizer has the potential to reduce N losses from soil. However, effectiveness amendment on management can vary with types different physical chemical properties. This study aimed assess effect two hardwood ash contents cation exchange capacity (CEC) soil mineralization nitrous oxide (N 2 O) production when applied alone in combination fertilizer. Soil samples collected a temperate pasture system were amended (B1 B2), urea, urea plus...
Soil organic carbon (SOC) plays a critical role in the sustainability of grazingland ecosystems around world. However, maintaining or increasing SOC levels remains major challenge, particularly subtropical regions where coarse-textured soils predominate. This study evaluated long-term (>20 years) impacts intensification (conversion native rangelands into more intensively managed silvopasture and sown pasture) on nitrogen (N) responses particle size/density fractions. Treatments consisted...
Abstract Successful synergy between organic management and conservation tillage could provide the best agroecological benefits by minimizing negative effects of both synthetic chemicals intensive on soils. We studied long‐term impacts conventional crop under different regimes soil C (SOC) aggregation, leveraging Rodale Institute's Farming Systems Trial. The experiment was initiated in 1981 with three cropping systems management: (a) (3‐yr rotation corn–corn–soybean) fertilizer application,...
Grazing lands should be monitored to ensure their productivity and the preservation of ecosystem services. The study objective was investigate effectiveness an Ecological Health Index (EHI) for assessing ecological health in grazing lands. EHI developed by synthesizing existing vegetation soil cover indicators. We implemented long-term transects at 44 farms from two regions Patagonia, Humid Magellan Steppe (HMS) (n = 24) Subandean Grasslands (SG) 20), collect data on established quantifiable...
Proper management of grassland ecosystems for improved productivity can enhance their potential to sequester atmospheric CO2 in the soil. However, direction and extent soil C changes response or land-use conversion varies depending on ecoregion practice. The objectives this study were to: (i) assess long-term (>20-yr) impact intensification fractions after native rangelands silvopasture sown pasture ecosystems; (ii) determine contribution grass species sequestration both labile more stable...
Abstract The potential nitrogen (N) losses from soils with fertilizer addition can be reduced when biochar is co‐applied, but this effect influenced by the methods of and application. In a 60‐d laboratory incubation experiment, we investigated how two application (surface placement soil incorporation) affected N transformation in under following treatments: control (soil no urea [C]), (150 mg g −1 [B]), [U]), combination B + U (75 each U). Our results showed that at Day 30, concentrations NH...
Abstract Long-term fertilizer application in row crops may influence soil pore characteristics, thereby impacting aggregation and structure. Therefore, understanding the influences on characteristics is useful for adopting suitable conservation practices. However, impact of cattle manure inorganic at varied rates profile a microscale level remains limited. This study quantifies impacts amendments under corn ( Zea mays L.)-soybean Glycine ma x L.)-spring wheat Triticum aestivum) rotation...
Genetic engineering has been used to decrease the lignin content and change composition of switchgrass ( Panicum virgatum L.) cell wall recalcitrance enable more efficient cellulosic biofuel production. Previous greenhouse field studies showed that downregulation gene encoding caffeic acid O -methyltransferase (COMT) overexpression PvMYB4 (MYB4) effectively improved ethanol yield. To understand potential environmental impacts cultivating these transgenic bioenergy crops in field, we...
The impacts of land intensification on carbon (C) responses are important components soil organic (SOC) management. Grazing typically involves the use highly productive plant species that can support greater grazing pressure, removal higher proportions site biomass and nutrients during mechanical harvest or grazing, increased fertilizers, particularly N. Current improved management strategies aimed at increasing above-ground yield, with less regard for below-ground C dynamics. Since...