OXYGEN PRODUCTION BY URBAN TREES IN THE UNITED STATES David J.
{"Image DocumentName": "OXYGEN PRODUCTION BY URBAN TREES IN THE UNITED STATES", "Image ImageDescription": "David J. Nowak, Robert Hoehn, and Daniel E. Crane. Arboriculture & Urban Forestry (3):220\u2013226. Estimates of carbon emissions resulting from decomposition. were based on the probability of the tree dying within the. next year and the probability of the tree being removed using. the formula: Emission = C \u00d7 Mc \u00d7 \u03a3pi((Dremove) + (Dstand)) Dremove = (pabyi)(1dm) + ((1\u2212pab)yi)(1dr) Dstand = ((yi\u22121)yi)(1dr) where emission individual tree contribution to carbon. emissions; C carbon storage in the next year; Mc probability. of mortality based on condition class; i decomposition. class (based on number of years left standing before. removal); pi proportion of the land use tree population in. decomposition class i; pab proportion of tree biomass. aboveground; yi number of years left standing before removal. (yi \u2192 for dead trees that will never be cut down. (natural decomposition)); dm decomposition rates for. mulched aboveground biomass (3 years); and dr decomposition. rate for standing trees and tree roots (20 years). Diunduh dari: \u2026\u2026. 6/1/2013.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}