California black oak response to nitrogen amendment at a high O3, nitrogen-saturated site

Grulke, NE; Dobrowolski, W; Mingus, P; Fenn, ME

HERO ID

199433

Reference Type

Journal Article

Year

2005

Language

English

PMID

16005765

HERO ID 199433
In Press No
Year 2005
Title California black oak response to nitrogen amendment at a high O3, nitrogen-saturated site
Authors Grulke, NE; Dobrowolski, W; Mingus, P; Fenn, ME
Journal Environmental Pollution
Volume 137
Issue 3
Page Numbers 536-545
Abstract in a nitrogen (N) saturated forest downwind from Los Angeles, California, the cumulative response to long-term background-N and N-amendment on black oak (Quercus kelloggii) was described in a below-average and average precipitation year. Monthly measurements of leaf and branch growth, gas exchange, and canopy health attributes were conducted. The effects of both pollutant exposure and drought stress were complex due to whole tree and leaf level responses, and shade versus full sun leaf responses. N-amended trees had lower late summer carbon (C) gain and greater foliar chlorosis in the drought year. Leaf water use efficiency was lower in N-amended trees in midsummer of the average precipitation year, and there was evidence of poor stomatal control in full sun. In shade, N-amendment enhanced stomata] control. Small differences in instantaneous C uptake in full sun, lower foliar respiration, and greater C gain in low light contributed to the greater aboveground growth observed. (c) 2005 Elsevier Ltd. All rights reserved.
Doi 10.1016/j.envpol.2005.01.039
Pmid 16005765
Wosid WOS:000230978800017
Url http://linkinghub.elsevier.com/retrieve/pii/S0269749105001272
Is Certified Translation No
Dupe Override No
Comments N1-OctN1-California black oak response to nitrogen amendment at a high O-3, nitrogen-saturated siteN1-ISI:000230978800017AD-US Forest Serv, USDA, Pacific SW Res Stn, Riverside, CA 92507 USA. Grulke, NE, US Forest Serv, USDA, Pacific SW Res Stn, 4955 Canyon Crest Dr, Riverside, CA 92507 USA. ngrulke@fs.fed.usID - 1441
Is Public Yes
Language Text English
Keyword Quercus kelloggii; Gas exchange; Growth; Water use efficiency; Nitrogen fertilization; Stomatal behavior
Is Peer Review Yes
Is Qa No
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