Xianzhong Wang

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Quantitative integration of the literature on the effect of elevated CO2 on woody plants is important to aid our understanding of forest health in coming decades and to better predict terrestrial feedbacks on the global carbon cycle. We used meta-analytic methods to summarize and interpret more than 500 reports of effects of elevated CO2 on woody plant(More)
Plants grown under elevated atmospheric [CO2] typically have decreased tissue concentrations of N compared with plants grown under current ambient [CO2]. The physiological mechanisms responsible for this phenomenon have not been definitely established, although a considerable number of hypotheses have been advanced to account for it. In this review we(More)
Reproduction is an important life history trait that strongly affects dynamics of plant populations. Although it has been well documented that elevated carbon dioxide (CO2) in the atmosphere greatly enhances biomass production in plants, the overall effect of elevated CO2 on reproductive allocation (RA), i.e., the proportion of biomass allocated to(More)
Atmospheric carbon dioxide (CO2) and global mean temperature are expected to be significantly higher by the end of the 21st century. Elevated CO2 (eCO2) and higher temperature each affect plant physiology and growth, but their interactive effects have not been reviewed statistically with respect to higher chronic mean temperatures and abrupt heat stress. In(More)
Contrasting results regarding elevated CO2 effects on leafdark respiration (Rd) have hampered efforts to incorporate this importantcomponent of the plant carbon budget into long-term predictions of ecologicalresponses to rising atmospheric CO2. To help resolve some of theseinconsistencies in the literature, we used meta-analysis to quantitativelysummarize(More)
nighttime warming in a temperate steppe in China, showing increased carbon uptake in response to night warming compared with day warming and control treatments. In a grassland in Oregon, Jillian Gregg (Terrestrial Ecosystems Associates, Corvallis, OR, USA) is testing whether increased carbon assimilation with warmer mornings will offset the greater(More)
Rising atmospheric CO2 greatly enhances plant production, but its effect on biomass allocation, particularly in the presence of environmental stresses, is not well understood. Here, we used meta-analysis combined with pairwise techniques to examine root mass fraction (RMF; i.e., the fraction of root to total biomass) as affected by elevated CO2 and(More)
OBJECTIVES The aim of this study is to look at the incidence of supraorbital ethmoid cells (SOEC) in normal Chinese subjects by using spiral computed tomography (CT) scanning. In addition, subjects with chronic rhinosinusitis with SOEC were reviewed for endoscopic analysis. METHODS A total of 202 normal Chinese subjects underwent spiral CT. Meanwhile, a(More)
Plant population and community dynamics may be altered by increasing atmospheric CO2 concentrations {[CO2]} through intraspecific variation in the responses of vegetative and reproductive growth. Although these responses may be regulated by age at flowering, little is known about the direct effects of age at flowering on growth responses to elevated [CO2].(More)
Sexual dimorphism in plants has been known for over two millennia. However, little is known about how male and female reproduction of dioecious species will respond to anthropogenic environmental perturbations. Using growth chambers, the effects of CO(2) enrichment on male and female reproduction in Silene latifolia were examined and whether parental CO(2)(More)