Annual basal area increment and growth duration of Pinus taeda in response to eight years of free-air carbon dioxide enrichment

被引:52
作者
Moore, David J. P.
Aref, Susanne
Ho, Ringo M.
Pippen, Jeffrey S.
Hamilton, Jason G.
De Lucia, Evan H. [1 ]
机构
[1] Univ Illinois, Dept Plant Biol, Urbana, IL 61801 USA
[2] Univ Illinois, Program Ecol & Evolutionary Biol, Urbana, IL 61801 USA
[3] Univ Illinois, Dept Stat, Urbana, IL 61801 USA
[4] Duke Univ, Nicholas Sch Environm & Earth Sci, Durham, NC 27708 USA
[5] Ithaca Coll, Dept Biol, Ithaca, NY 14850 USA
关键词
carbon gain; climate change; dendrometer bands; forests; phenology; precipitation; stem growth; temperature;
D O I
10.1111/j.1365-2486.2006.01189.x
中图分类号
X176 [生物多样性保护];
学科分类号
090705 ;
摘要
Rising CO2 is predicted to increase forest productivity, although the duration of the response and how it might be altered by variation in rainfall, temperature and other environmental variables are not well understood. We measured the basal area of rapidly growing Pinus taeda trees exposed to free-air CO2 enrichment for 8 years and used these measurements to estimate monthly and annual growth. We used these measurements in a statistical model to estimate the start and end of growth in each year. Elevated CO2 increased the basal area increment (BAI) of trees by 13-27%. In most years, exposure to elevated CO2 increased the growth rate but not the duration of the active growth period. With the exception of 1 year following an extreme drought and a severe ice storm, BAI was positively correlated with the amount of rainfall during the active growth period. The interannual variation in the relative enhancement of BAI caused by elevated CO2 was strongly related to temperature and rainfall, and was greatest in years with high vapor pressure deficit. There was no evidence of a systematic reduction in the stimulation of growth during the first 8 years of this experiment, suggesting that the hypothesized limitation of the CO2 response caused by nitrogen availability has yet to occur.
引用
收藏
页码:1367 / 1377
页数:11
相关论文
共 66 条
[21]   A six-year study of sapling and large-tree growth and mortality responses to natural and induced variability in precipitation and throughfall [J].
Hanson, PJ ;
Todd, DE ;
Amthor, JS .
TREE PHYSIOLOGY, 2001, 21 (06) :345-358
[22]   THE FACE PROGRAM [J].
HENDREY, GR ;
KIMBALL, BA .
AGRICULTURAL AND FOREST METEOROLOGY, 1994, 70 (1-4) :3-14
[23]   A free-air enrichment system for exposing tall forest vegetation to elevated atmospheric CO2 [J].
Hendrey, GR ;
Ellsworth, DS ;
Lewin, KF ;
Nagy, J .
GLOBAL CHANGE BIOLOGY, 1999, 5 (03) :293-309
[24]   Nitrogen and climate change [J].
Hungate, BA ;
Dukes, JS ;
Shaw, MR ;
Luo, YQ ;
Field, CB .
SCIENCE, 2003, 302 (5650) :1512-1513
[25]   Does free-air carbon dioxide enrichment affect photochemical energy use by evergreen trees in different seasons? A chlorophyll fluorescence study of mature loblolly pine [J].
Hymus, GJ ;
Ellsworth, DS ;
Baker, NR ;
Long, SP .
PLANT PHYSIOLOGY, 1999, 120 (04) :1183-1191
[26]   THE CO2/O2 SPECIFICITY OF RIBULOSE 1,5-BISPHOSPHATE CARBOXYLASE OXYGENASE - DEPENDENCE ON RIBULOSEBISPHOSPHATE CONCENTRATION, PH AND TEMPERATURE [J].
JORDAN, DB ;
OGREN, WL .
PLANTA, 1984, 161 (04) :308-313
[27]   ACCURACY OF TREE GROWTH MEASUREMENTS USING DENDROMETER BANDS [J].
KEELAND, BD ;
SHARITZ, RR .
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE, 1993, 23 (11) :2454-2457
[28]   Small sample inference for fixed effects from restricted maximum likelihood [J].
Kenward, MG ;
Roger, JH .
BIOMETRICS, 1997, 53 (03) :983-997
[29]   Variation among biomes in temporal dynamics of aboveground primary production [J].
Knapp, AK ;
Smith, MD .
SCIENCE, 2001, 291 (5503) :481-484
[30]   Carbon flux and growth in mature deciduous forest trees exposed to elevated CO2 [J].
Körner, C ;
Asshoff, R ;
Bignucolo, O ;
Hättenschwiler, S ;
Keel, SG ;
Peláez-Riedl, S ;
Pepin, S ;
Siegwolf, RTW ;
Zotz, G .
SCIENCE, 2005, 309 (5739) :1360-1362