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277篇 您的检索式:作者名="ARMAS"
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1Resource economics and coordination among above- and below-ground functional traits of three dominant shrubs from the Chilean coastal desert显示文摘Aims Plant functional traits determine how plants respond to environmen-tal factors and influence ecosystem processes.Among them,root traits and analyses of relations between above and below-ground traits in natural communities are scarce.Methods we characterized a set of above-and below-ground traits of three dominant shrub species in a semiarid shrub-steppe that had contrasting leaf pheno-logical habits(deciduous,semideciduous and evergreen).We ana-lysed if there was coordination among above-and below-ground resource economics patterns:i.e.patterns of biomass allocation,construction costs and lifespan.Important Findings Above-and below-ground traits and their resource economics relations pointed to species-specific functional strategies to cope with drought and poor soils and to a species ranking of fast to slow whole-plant strategies in terms of resource uptake,biomass con-struction costs and turnover.The deciduous shrub,Proustia cunei-folia,had relatively deep and even distribution of roots,and high proportion of short-lived tissues of low C construction costs:it had high fine to coarse root and high leaf-to-stem biomass ratios,high specific leaf area(SLA),and stems of low wood density.This strat-egy allows Proustia to maximize and coordinate above-and below-ground resources uptake as long as the most limiting factor(water)is available,but at the cost of having relative high plant biomass turnover.The evergreen Porlieria chilensis,instead,displayed a more conservative and slow strategy in terms of resource econom-ics.It had~80%of the roots in the 40 cm topsoil profile,low pro-portion of fine compared with coarse roots and low leaf-to-stem ratios,low SLA and stems of high wood density,i.e.it invested in C costly tissues that,overall,persist longer but probably at the cost of having lower plant resource uptake rates.Traits in the semide-ciduous Adesmia bedwellii were in between these two functional extremes.Our results revealed high functional diversity and above-and below-ground complementarity in resource economics among these three codominant species in the Chilean coastal desert.Joaquín Morales Francisco A.Squeo Yann Tracol Cristina Armas Julio R.Gutiérrez 2015Journal of Plant Ecology2015,8,1:3
2Pituitary abscess: series of six cases显示文摘Jain KC arma A ahapatra AK Br J Neurosurg0,1,:2
3Mechanical and microstructural behaviour of isothermally and thermally fatigued ferritic/martensitic steels显示文摘A.F. Armas C. Petersen R. Schmitt M. Avalos I. Alvarez-Armas 2002Journal of Nuclear Materials2002,,:1
4Nonenzymatic Glycation and Degree of Mineralization Are Higher in Bone From Fractured Patients With Type 1 Diabetes Mellitus 显示文摘Farlay D Armas LA Gineyts E 2015J Bone Miner Res2015,,:1
5The gingival inflammatory infiltrate in cardiac patients treated with calcium antagonists显示文摘Bullon P Machuca G Armas JR 2001J Clin Periodontol2001,28,10:1
6A CORDIC processor for FFT computation and Its implementation using gallium arsenide technology显示文摘Sarmiento R Tobajas F de Armas V 1998IEEE Transactions on Very large Scale Integration VLSI) Systems1998,6,1:1
7The ligule of Isoetes : A prophyllar structure显示文摘SH ARMA B D BOHRA D R 2002Phytomorphology2002,52,1:1
8Effect ofbiodiesel fuels on diesel engine emissions显示文摘Lapuerta M Armas O Rodríguez-Fernández J 2008Progress in Energyand Combustion Science2008,34,2:1
9Prevalence of carbohydrate metabolism disturbances in a population of children and adolescents with severe obesity显示文摘GUIJARRO DE ARMAS MG MEGIAS S 0,,10:1
10The prevelence of hypertension and the state of cardiovascular health in venezuela and surrounding nations显示文摘 Armas Padilia M C 1998Ethn Dis1998,8,3:1
11Vitamin D(2)is much less effective than vitamin D(3)in humans显示文摘Armas LA Hollis BW Heaney RP 2004J Clin Endocrinol Metab2004,89,11:1
12Emission from a diesel bioethanol blend in an automotive diesel engine 显示文摘LAPUERTA M ARMAS O HERREROS J M 2008Fuel2008,87,:1
13The role of hydraulic lift on seedling establishment under a nurse plant species in a semi-arid environment显示文摘PRIETO I PADILLA F M ARMAS C et a1 2011Respectives in Plant Ecology Evolution and Systematics2011,13,:1
14Impact of alternative fuels on performance and pollutant emissions of a light duty engine tested under the new European driving cycle 显示文摘ARMAS O GARCIA-CONTRERAS R RAMOS 2: 2013Applied Energy2013,107,:1
15Short term preservation of in trafollicular oocytes at 4℃显示文摘Solano R de Armas R Pupo CA 1994Theriogenology1994,41,:1
16Measuring plant interactions: a new comparative index 显示文摘Armas C Ordiales R Pugnaire F I 2004Ecology2004,85,:1
17Trigonometric Interpolation 显示文摘SH ARMA A VARMA A K 1965Dtrke Math J1965,32,:1
18Impact of percutaneous renal access technique on outcomes of percutaneous nephrolithotomy显示文摘Tepeler A Arma(g)an A Akman T 2012J Endourol2012,26,7:1
19Autoinflammatory disorders:a new concept in hereditary periodic fever syndromes显示文摘Horcada Rubio ML Delgado Beltran C Armas Ramirez C 2004An Med Interna2004,21,3:1
20Diesel emissions from biofuels derived from Spanish potential vegetable oils 显示文摘Lapuerta M Armas O Ballesteros R 2005Fuel2005,84,6:1
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