A FOURTH VETERINARY SCHOOL IN AUSTRALIA     

R N Farquhar 《Australian veterinary journal》1969,45(11):539-539

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Optic neuropathy and retinopathy in closantel toxicosis of sheep and goats     

PA GILL  RW COOK  JG BOULTON  WR KELLY  B VANSELOW  LA REDDACLIFF 《Australian veterinary journal》1999,77(4):259-261

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Zea mays rhizosphere respiration, but not soil organic matter decomposition was stable across a temperature gradient     

Sara Vicca  Ivan A. Janssens  Suan-Chin Wong  Graham D. Farquhar 《Soil biology & biochemistry》2010,42(11):2030-2033

In a greenhouse experiment, we grew maize plants at different densities. We added fertilizer to half of the pots and created a temperature gradient. After 10 weeks of plant growth, we measured soil CO₂ efflux (SCE) and determined rhizosphere respiration (R_rhizo) and the decomposition rate of soil organic matter (R_SOM) using the different δ¹³C of the C₃ soil and C₄ plants. Whereas R_rhizo remained stable across the temperature gradient, R_SOM significantly increased with growth temperature. Neither plant density, nor the fertilizer treatment affected the relation between R_rhizo or R_SOM and growth temperature. Although R_rhizo might still increase with temperature in the short term, long term exposure to higher temperatures revealed full thermal acclimation of R_rhizo, but not of R_SOM.  相似文献   

The cause of decreased pan evaporation over the past 50 years   总被引：17，自引：0，他引：17  

Roderick ML  Farquhar GD 《Science (New York, N.Y.)》2002,298(5597):1410-1411

Changes in the global water cycle can cause major environmental and socioeconomic impacts. As the average global temperature increases, it is generally expected that the air will become drier and that evaporation from terrestrial water bodies will increase. Paradoxically, terrestrial observations over the past 50 years show the reverse. Here, we show that the decrease in evaporation is consistent with what one would expect from the observed large and widespread decreases in sunlight resulting from increasing cloud coverage and aerosol concentration.  相似文献   

Lead isotope identification of sources of galena from some prehistoric Indian sites in ontario, Canada     

Farquhar RM  Fletcher IR 《Science (New York, N.Y.)》1980,207(4431):640-643

Lead isotopic compositions of 12 galenas from five late Archaic-initial Woodland grave and habitation sites in southern Ontario have made it possible to determine the "most likely" source areas for the galenas. For one of the oldest sites (Finlan), the most likely source is in the southwestern Upper Mississippi Valley (Wisconsin-Illinois-Iowa) mineral district. The seven Finlan galenas exhibit a range of isotopic ratios; three of the largest specimens have substantial isotopic variations (up to 1.8 percent in the ratio of lead-207 to lead-206) on a scale of a few centimeters. This suggests that the lead isotopic zoning ascribed to the Upper Mississippi Valley area is not sufficiently well defined to enable us to determine if all the Finlan samples were derived from a single mineral deposit. Galenas from the other sites (Constance Bay, Hind, Bruce Boyd, and Picton) most probably originated in the southeastern Ontario-northwestern New York area. Isotopic differences among the Constance Bay, Hind, and Bruce Boyd galenas, on the one hand, and the Picton galena, on the other, suggest that at least two distinct sources in that region were exploited.  相似文献   

Atmospheric science. Pinatubo,diffuse light,and the carbon cycle   总被引：1，自引：0，他引：1  

Farquhar GD  Roderick ML 《Science (New York, N.Y.)》2003,299(5615):1997-1998

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A Note on the Lead Isotope Method of Age Determination     

Allan DW  Farquhar RM  Russell RD 《Science (New York, N.Y.)》1953,118(3069):486-488

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Breed is associated with the ABCB1-1Δ mutation in Australian dogs     

RW Soussa  A Woodward  M Marty  CM Cannon 《Australian veterinary journal》2020,98(3):79-83

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Encephalomyocarditis virus infection in alpacas     

TW O'Connor  DS Finlaison  LK Manning  MS Hazelton  ZB Spiers  P Pinczowski  EM Bolin  PD Kemsley  NU Horadagoda  AJ Dart  RW Cook  PD Kirkland 《Australian veterinary journal》2020,98(10):486-490

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水分利用效率与用水有效性: 基于气孔视角的稳定同位素应用研究   总被引：3，自引：1，他引：2  

Graham Farquhar   《中国生态农业学报》2014,22(8):886-889

澳大利亚多年降水较少并且分布不均,同华北平原相似,水资源短缺是制约粮食生产和作物产量的限制因子,水资源消耗中,农业用水所占比例最大,提高植物(作物)的水分利用效率和用水有效性对于实现水资源和农业生产的可持续利用和发展具有重要意义。本文针对澳大利亚和华北平原的农业生产和水资源现状,基于植物气孔角度在以下3个方面进行论述:1水分利用效率与用水有效性的概念;2基于气孔视角的水分利用效率和用水有效性的分析;3不同作物品种水分利用状况的同位素判别与应用。除此之外,也对华北平原目前农业水分利用情况提出相应建议。  相似文献