https://jonathanjmaynard.com/project/ Recent content in Projects on Jonathan J Maynard Hugo -- gohugo.io en-us © Jonathan J Maynard, {year} Fri, 31 Jan 2020 00:00:00 -0700 https://jonathanjmaynard.com/project/digital-soil-mapping/ Fri, 31 Jan 2020 00:00:00 -0700 https://jonathanjmaynard.com/project/digital-soil-mapping/ Soil Landscape Modeling My research strives to develop soil modeling approaches that integrate pedogenic principles and processes within a spatial modeling framework. Landscape metrics developed from LiDAR and remote sensing are important inputs into these models. In my research, I have been exploring how recent advances in remotely sensed spatial data (e.g., LiDAR, Hyper-Spatial/Spectral imagery) and computation capacity (e.g., Google Earth Engine), may improve our ability to scale-up our observations/predictions of soil properties and processes from the pedon-scale to the landscape-scale. https://jonathanjmaynard.com/project/ecosystem-monitoring/ Fri, 31 Jan 2020 00:00:00 -0700 https://jonathanjmaynard.com/project/ecosystem-monitoring/ Environmental monitoring and soil ecosystem restoration Unprecedented rates of ecosystem change have occured as a result of human activities, with 43% of the Earth’s land surface experiencing some form of human induced degradation. Consequently, there is a critical need to develop tools and techniques to assess and monitor landscape change. In my current research with the USDA-ARS I am examining the application of remote sensing technologies for natural resource monitoring. https://jonathanjmaynard.com/project/environ-remediation/ Fri, 31 Jan 2020 00:00:00 -0700 https://jonathanjmaynard.com/project/environ-remediation/ Environmental Remediation of Soil Ecosystems Biochar is increasingly receiving attention as a cost-effective, carbon neutral/negative amendment for environmental remediation. I am currently involved in a project examining the use of biochar (engineered charcoal) as a potential heavy metal sorbent for remediating contaminated soils. We are investigating how changing production conditions alter the physical and chemical properties of biochar, and how these changes affect the mechanism(s) of heavy metal biosorption. In this research we are using �XRF, XANES, EXAFS, and �XRD to understand the metal bonding mechanism and characteristics (e. https://jonathanjmaynard.com/project/soil-carbon/ Fri, 31 Jan 2020 00:00:00 -0700 https://jonathanjmaynard.com/project/soil-carbon/ Mechanisms and Controls on Soil Carbon Cycling Climate models predict significant decreases in soil moisture in Mediterranean and high altitude ecosystems with estimated reductions of 5 to 10% soil moisture (Meehl et al., 2007). Forest ecosystems contain approximately one-half of the Earths terrestrial carbon © (1146 Pg), with two-thirds (787 Pg) of this pool residing in forest soils (Nave et al., 2010). Given the magnitude of the soil C pool, it is critical to understand the effects of forest management practices and projected climate change on soil C dynamics. https://jonathanjmaynard.com/project/water-quality/ Fri, 31 Jan 2020 00:00:00 -0700 https://jonathanjmaynard.com/project/water-quality/ Improving Surface Water Quality in Agricultural Landscapes Constructed and restored wetlands have become a popular management practice to improve water quality in agricultural landscapes and have been shown to act as effective sinks for phosphorus and other pollutants. At the landscape level, wetlands serve as a critical interface between uplands and adjacent water bodies, providing a last line of defense in protecting down-gradient aquatic ecosystems from nutrient excesses. The retention of phosphorus is of particular concern due to its limiting status and role in promoting algal productivity. https://jonathanjmaynard.com/project/wetland-soil/ Fri, 31 Jan 2020 00:00:00 -0700 https://jonathanjmaynard.com/project/wetland-soil/ Wetland Soil Biogeochemistry My interest in anthropogenic impacts on soil ecosystem processes began with seasonal wetlands. Seasonal wetlands are unique in that they exhibit disproportionately high rates of biogeochemical cycling due to their changing redox state and high proportion of interfacial zones where redox cycling is most intense. In this research I examined the effects of agricultural runoff on the biogeochemical cycling of carbon, metals and nutrients in several seasonally-saturated constructed wetlands. https://jonathanjmaynard.com/project/external-project/ Wed, 27 Apr 2016 00:00:00 -0700 https://jonathanjmaynard.com/project/external-project/ https://jonathanjmaynard.com/project/internal-project/ Wed, 27 Apr 2016 00:00:00 -0700 https://jonathanjmaynard.com/project/internal-project/ Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis posuere tellus ac convallis placerat. Proin tincidunt magna sed ex sollicitudin condimentum. Sed ac faucibus dolor, scelerisque sollicitudin nisi. Cras purus urna, suscipit quis sapien eu, pulvinar tempor diam. Quisque risus orci, mollis id ante sit amet, gravida egestas nisl. Sed ac tempus magna. Proin in dui enim. Donec condimentum, sem id dapibus fringilla, tellus enim condimentum arcu, nec volutpat est felis vel metus.