Portable canopy chamber measurements of evapotranspiration in corn, soybean, and reconstructed prairie
نویسندگان
چکیده
منابع مشابه
Portable canopy chamber measurements of evapotranspiration in corn, soybean, and reconstructed prairie
Evapotranspiration (ET) is a vital component of a field water balance. Canopy chambers are a promising method for determining crop ET because they are portable and applicable at a relatively small plot (m2) scale. Although a variety of canopy chamber designs have been proposed, field tests are still necessary to evaluate chamber performance for measuring crop ET. The objectives of this study ar...
متن کاملdeltaO of water vapour, evapotranspiration and the sites of leaf water evaporation in a soybean canopy.
Stable isotopes in water have the potential to diagnose changes in the earth's hydrological budget in response to climate change and land use change. However, there have been few measurements in the vapour phase. Here, we present high-frequency measurements of oxygen isotopic compositions of water vapour (delta(v)) and evapotranspiration (delta(ET)) above a soybean canopy using the tunable diod...
متن کاملRising ozone concentrations decrease soybean evapotranspiration and water use efficiency whilst increasing canopy temperature.
• Here, we investigated the effects of increasing concentrations of ozone ([O(3)]) on soybean canopy-scale fluxes of heat and water vapor, as well as water use efficiency (WUE), at the Soybean Free Air Concentration Enrichment (SoyFACE) facility. • Micrometeorological measurements were made to determine the net radiation (R(n)), sensible heat flux (H), soil heat flux (G(0)) and latent heat flux...
متن کاملPrairie strips improve biodiversity and the delivery of multiple ecosystem services from corn–soybean croplands
Department of Natural Resource Ecology and Management, Iowa State University, Ames, IA 50011; Department of Statistics, Iowa State University, Ames, IA 50011; Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011; Department of Agronomy, Iowa State University, Ames, IA 50011; Department of Sociology, Iowa State University, Ames, IA 50011; National Laborato...
متن کاملThe Seed Bank of a Reconstructed Prairie
Seed banks, the reserve of viable seeds dormant in the soil, function in several important roles in the population and community dynamics of plant communities. Identification of the seed bank can furnish information on the vegetation history of a habitat, predict the future composition of the plant community, and provide insight on the seed viability and biology of plant species. Although seed ...
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ژورنال
عنوان ژورنال: Agricultural Water Management
سال: 2018
ISSN: 0378-3774
DOI: 10.1016/j.agwat.2017.11.024