Seasonal Variation of CO2 flux over a broadleaf deciduous forest.
نویسندگان
چکیده
منابع مشابه
Characterization of seasonal variation of forest canopy in a temperate deciduous broadleaf forest, using daily MODIS data
In this paper, we present an improved procedure for collecting no or little atmosphereand snow-contaminated observations from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor. The resultant time series of daily MODIS data of a temperate deciduous broadleaf forest (the Bartlett Experimental Forest) in 2004 show strong seasonal dynamics of surface reflectance of green, near infrar...
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Relatively little is known about the implications of atmospheric CO2 enrichment for tree responses to biotic disturbances such as folivory. We examined the combined effects of elevated CO2 concentration ([CO2]) and defoliation on growth and physiology of sugar maple (Acer saccharum Marsh.) and trembling aspen (Populus tremuloides Michx.). Seedlings were planted in the ground in eight open-top c...
متن کاملSeasonal and interannual variability of energy fluxes over a broadleaved temperate deciduous forest in North America
The components of the surface energy balance were measured for 3 years over a broadleaved deciduous forest using the eddy covariance technique. Within years, the magnitude and distribution of fluxes was controlled by seasonal changes in solar radiation, drought, as well as leaf emergence and senescence. Evapotranspiration increased by a factor greater than five (from about 0.5 to 3 mm day−1) af...
متن کاملMonitoring spring canopy phenology of a deciduous broadleaf forest using MODIS
Climate change is predicted to alter the canopy phenology of temperate and boreal forests, which will affect carbon, water, and energy budgets. Therefore, there is a great need to evaluate remotely sensed products for their potential to accurately capture canopy dynamics. The objective of this study was to compare several products derived from the Moderate Resolution Imaging Spectroradiometer (...
متن کاملLinking near-surface and satellite remote sensing measurements of deciduous broadleaf forest phenology
a r t i c l e i n f o Green leaf phenology is known to be sensitive to climate variation. Phenology is also important because it exerts significant control on terrestrial carbon cycling and sequestration. High-quality measurements of green leaf phenology are therefore increasingly important for understanding the effects of climate change on ecosystem function and biosphere–atmosphere interactio...
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ژورنال
عنوان ژورنال: Journal of Japan Society of Hydrology and Water Resources
سال: 1998
ISSN: 0915-1389,1349-2853
DOI: 10.3178/jjshwr.11.575