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Our study was performed on canopy trees and lianas reaching canopy level in tropical forests of French Guiana. Our results show liana xylem water isotopic signatures to be enriched in heavy isotopes in comparison with those from trees, indicating differences in water source depths and a more ...
The effects of salinized irrigation on tree canopy and root , use, foliar nutrition and leaching losses below the rootzone were studied during a 2-year period using single tree lysimeters. Eighteen 6-year-old 'Valencia' orange trees on either (CC) rootstock or (SO) rootstock were each trans...
The simplified volume of the tree canopies was calculated using the standard formula for the volume of a cone, according to equation (2):(2)Volume=13∗π∗r2∗hWhere r is the radius derived from the minimum bounding geometry diameter of each segmented tree canopy and h is the height ...
2016. We estimate that up to 80% of the nitrate reaching the soil via throughfall was derived from canopy nitrification, equivalent to a flux of up to 5.76 kg N ha−1 yr−1. We also document the presence of autotrophic nitrifiers on foliar surfaces throughout European forests...
We collated data from forest inventory plots ≥0.2 ha in size, situated in structurally intact (no detectable past logging or fire), closed canopy (not dry forest or savanna) tropical forest, with enumeration of all stems ≥10 cm diameter, in which ≥ 80% of stems are identified to...
That’s why it’s always painful to lose even a single tree — let alone entire swaths of them, known as “tree cover” or “tree canopy.” Unfortunately, some states are losing more of these green giants — and losing them faster — than others....
From Deanet al.(1982). b The GL treatments consisted of green celluloid film with holes to simulate a canopy that had sunflecks. For GL1 and GL2, upper value indicates the sum of 100% transmission through holes and transmission through remaining shaded area; lower value indicates transmission...
below-canopy sensors, used to measure inside the forest, with reference sensors, located above the forest canopy, may help disentangle the seasonal contribution of understory vegetation to forest reflectance. While multispectral cameras can be used to derive plot-level spectral vegetation indices (SVIs...
Thus the forest floor may be moist, but the topmost leaves of the canopy are far above it and are exposed to the fiercest sun. So the uppermost leaves must resist desiccation (drying out). Yet from time to time, and in due season every day, they must also endure tremendous downpours....