Plant resource-use characteristics as predictors for species contribution to community biomass in experimental grasslands

2011 ◽  
Vol 13 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Christiane Roscher ◽  
Michael Scherer-Lorenzen ◽  
Jens Schumacher ◽  
Vicky M. Temperton ◽  
Nina Buchmann ◽  
...  
Keyword(s):  
Resource Use ◽  
Plant Resource ◽  
Community Biomass

Environmental heterogeneity influences plant resource use – A case study in a rural community of NE Brazil

2019 ◽  
Vol 671 ◽  
pp. 362-368 ◽  
Author(s):  
Fernanda Novais Barros ◽  
Bárbara Luzia Santos Pinto ◽  
Cleiçon Félix de Sá ◽  
Ivanilda Soares Feitosa ◽  
Patrícia Muniz de Medeiros
Keyword(s):  
Rural Community ◽  
Resource Use ◽  
Environmental Heterogeneity ◽  
Plant Resource

scholarly journals Dynamic Changes in Plant Resource Use Efficiencies and Their Primary Influence Mechanisms in a Typical Desert Shrub Community

Forests ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1372
Author(s):  
Yan Jiang ◽  
Yun Tian ◽  
Tianshan Zha ◽  
Xin Jia ◽  
Charles P.-A. Bourque ◽  
...  
Keyword(s):  
Resource Use ◽  
Abiotic Factors ◽  
Nitrogen Concentration ◽  
Regional Climate ◽  
Water Vapor Pressure ◽  
Drought Severity ◽  
Desert Shrubs ◽  
Desert Shrub ◽  
Plant Resource ◽  
Shrub Community

Understanding plant resource use efficiencies (RUEs) and their tradeoffs in a desert shrub community, particularly as it concerns the usage of water, light, and nitrogen, remains an ecological imperative. Plant RUEs have been widely used as indicators to understand plant acclimation processes to unfavorable environmental conditions. This study aimed to examine seasonal dynamics in RUEs in two widely distributed plant species in a typical desert shrub community (i.e., Artemisia ordosica and Leymus secalinus) based on in-situ measurements of leaf photosynthesis, specific leaf area (SLA), leaf nitrogen concentration (i.e., Nmass + Narea), and several site-related abiotic factors. Both species exhibited significant seasonal variation in RUEs, with a coefficient of variation (CV) > 30% and seasonal divergence among the various RUEs. Seasonal divergence was largely controlled by variation in stomatal conductance (Gs), which was in turn influenced by variation in soil water content (SWC) and water vapor pressure deficit (VPD). RUEs between species converged, being positively correlated, yielding: (i) r2 = 0.40 and p < 0.01 for WUE; (ii) r2 = 0.18 and p < 0.01 for LUE；and (iii) r2 = 0.25 and p < 0.01 for NUE. RUEs for A. ordosica were mostly larger than those for L. secalinus, but less reactive to drought. This suggests A. ordosica was more conservative in its usage of available resources and was, therefore, better able to adapt to arid conditions. Resource use strategies between species differed in response to drought. Desert shrubs are projected to eventually replace grasses, as drought severity and duration increase with sustained regional climate change.

Knowledge of plant resource use based on location, gender and generation

2008 ◽  
Vol 28 (4) ◽  
pp. 311-322 ◽  
Author(s):  
Delali B.K. Dovie ◽  
E.T.F. Witkowski ◽  
Charlie M. Shackleton
Keyword(s):  
Resource Use ◽  
Plant Resource

Differences in productivity QOL, and resource use in newly diagnosed and established irritable bowel syndrome (IBS) patients

2001 ◽  
Vol 120 (5) ◽  
pp. A634-A634
Author(s):  
P JHINGRAN ◽  
J RICCI ◽  
M MARKOWITZ ◽  
S GORDON ◽  
A ASGHARIAN ◽  
...  
Keyword(s):  
Irritable Bowel Syndrome ◽  
Resource Use ◽  
Newly Diagnosed ◽  
Irritable Bowel
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