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The nitrogen cycle and ecohydrology of seasonally dry grasslands
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Fertilization effects on the ecohydrology of a southern California annual grassland
Published 2012“…We use observations from a factorial irrigation and fertilization experiment in a nitrogen-limited southern California annual grassland to explore this hypothesis. Our analysis shows growing season soil moisture and canopy-scale water vapor conductance are equivalent in control and fertilized plots. …”
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Ecosystem succession : a general hypothesis and a test model of a grassland
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Shrub encroachment is associated with changes in soil bacterial community composition in a temperate grassland ecosystem
Published 2021“…We investigated the effects of shrub encroachment on grassland soil bacterial communities along a soil depth gradient in the Inner Mongolian region of China. …”
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Rapid response of arbuscular mycorrhizal fungal communities to short-term fertilization in an alpine grassland on the Qinghai-Tibet Plateau
Published 2018“…Background: The Qinghai-Tibet Plateau (QTP) is home to the vast grassland in China. The QTP grassland ecosystem has been seriously degraded by human land use practices and climate change. …”
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Atmosphere-terrestrial exchange of gaseous elemental mercury: parameterization improvement through direct comparison with measured ecosystem fluxes
Published 2019“…Comparisons were performed in two terrestrial ecosystems: a grassland site in Switzerland and an Arctic tundra site in Alaska, U.S., each including summer and winter seasons. …”
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An Off-Grid PV Power System for Meteorological and Eddy Covariance Flux Station in Kranji, Singapore
Published 2018“…This paper describes an off-grid (stand-alone) PV system for powering an eddy flux station on tropical grassland in Kranji (1°25ʹN, 103°43ʹE), Singapore. …”
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Effects of Nitrogen Limitation on Hydrological Processes in CLM4-CN
Published 2012Get full text
Technical Report -
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Estimation of surface turbulent heat fluxes via variational assimilation of sequences of land surface temperatures from Geostationary Operational Environmental Satellites
Published 2017“…Hence, in this study, combined-source (CS) and dual-source (DS) VDA schemes are tested extensively over six FluxNet sites with different vegetation covers (grassland, cropland, and forest) and climate conditions. …”
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Global Precipitation Retrievals Using the NOAA AMSU Millimeter-Wave Channels: Comparisons with Rain Gauges
Published 2010“…Most surface classifications had bias ratios for AMSU/gauges that ranged from 0.88 to 1.59, although higher systematic AMSU overestimates by factors of 2.4, 3.1, and 9 were found for grassland, shrubs over bare ground, and pure bare ground, respectively. …”
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Parameter estimation of coupled water and energy balance models based on stationary constraints of surface states
Published 2013“…The method is tested at two AmeriFlux sites, Vaira Ranch (California) and Kendall Grassland (Arizona). The estimated fluxes (using only observed forcing and state variables) are in reasonable agreement with field measurements. …”
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Impacts of greenhouse gas mitigation policies on agricultural land
Published 2008Get full text
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Retrievals of soil moisture and vegetation optical depth using a multi-channel collaborative algorithm
Published 2021“…Two ground-based microwave radiometry datasets collected in Inner Mongolia during the Soil Moisture Experiment in the Luan River from July to August 2017 (cropland) and August to September 2018 (grassland) are used for this study. The corn field, which covers an entire growth period, indicated that the degree of information increases linearly as the number of channels (in terms of the incidence angle and frequency) increases, and that the multi-frequency observations contain slightly more independent information than do the multi-angular observations under the same number of channels. …”
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California native and exotic perennial grasses differ in their response to soil nitrogen, exotic annual grass density, and order of emergence
Published 2009“…In addition, these species interactions in California grasslands may be mediated by increasing anthropogenic or natural soil nitrogen inputs. …”
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Pleistocene drivers of Northwest African hydroclimate and vegetation
Published 2023“…We show that monsoon rainfall is controlled by low-latitude insolation gradients and that while increases in precipitation are associated with expansion of grasslands into desert landscapes, changes in pCO<jats:sub>2</jats:sub> predominantly drive the C<jats:sub>3</jats:sub>/C<jats:sub>4</jats:sub> composition of savanna ecosystems.…”
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Characterization of higher-order scattering from vegetation with SMAP measurements
Published 2020“…In this study, we investigate the degree to which multiple-scattering is prevalent over a range of land cover classifications (from lightly vegetated grasslands to dense forests) at the satellite scale by explicitly accounting for multiple-scattering in a first-order radiative transfer model, developed here. …”
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Microbial biomarkers reveal a hydrothermally active landscape at Olduvai Gorge at the dawn of the Acheulean, 1.7 Ma
Published 2021“…In the context of the expansion of savanna grasslands, our results represent a resourcerichmosaic ecosystempopulated by groundwater-fed rivers, aquatic plants, angiospermshrublands, and edible plants. …”
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