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246篇 您的检索式:作者名="Canadell"
    题名 作者 年代 出处 被引量
1Land use effects on terrestrial carbon sources and sinks显示文摘Current and past land use practices are critical in determining the distribution and size of global terrestrial carbon (C) sources and sinks. Althoughfossil fuel emissions dominate the anthropogenic perturbation of the global C cycle, land use still drives the largest portion of anthropogenic emissions in a number of tropical regions of Asia. The size of the emission flux owing to land use change is still the biggest uncertainty in the global C budget. The Intergovernmental Panel on Climate Change (IPCC) reported a flux term of 1.7 PgC@a-1 for 1990-1995 but more recent estimates suggest the magnitude of this source may be only of 0.96 PgC@a-1 for the 1990s. In addition, current and past land use practices are now thought to contribute to a large degree to the northern hemisphere terrestrial sink, and are the dominant driver for some regional sinks. However, mechanisms other than land use change need to be invoked in order to explain the inferred C sink in the tropics. Potential candidates are the carbon dioxide (CO2) fertilization and climate change; fertilization due to nitrogen (N) deposition is believed to be small or nil. Although the potential for managing C sinks is limited, improved land use management and new land uses such as reforestation and biomass fuel cropping, can further enhance current terrestrial C sinks. Best management practices in agriculture alone could sequester 0.4-0.8 PgC per year in soils if implemented globally. New methodologies to ensure verification and permanency of C sequestration need to be developed.Josep G. Canadell 2002Science China(Life Sciences)2002,45,z1:17
2Electronic structure, optical properties, and lattice dynamics in atomically thin indium selenide flakes显示文摘chalcogenide 单身者层的进步的叠与能为新地效果晶体管和 photonic 设备被利用的悦耳的性质产生二维的半导体的材料。然而, chalcogenide 家庭的一些成员的性质仍然保持未经勘探。铟硒化物(InSe ) 由于它在近红外线的、可控制的 p 类型并且 n 类型做和高化学稳定性的直接 bandgap 为应用是吸引人的。这里,我们揭示格子动力学,原子地薄的 InSe 薄片的光、电子的性质由 micromechanical 劈开准备了。拉曼活跃模式在取决于电子契约激动的薄片使硬或弄软。一进步光致发光山峰蓝移动为减少的薄片厚度被观察(象为三单个层的 0.2 eV 一样大) 。第一原则的计算在 bandgap 预言甚至更大的增加, 0.40 eV 为三单个层,并且为单个层的差不多 1.1 eV。这些结果与 Si 和 III-V 技术从为在纳米规模和兼容机的 optoelectronic 应用的这材料的通用性的观点是有希望的。Juan F. Sanchez-Royo Suillermo Munoz-Matutano Mauro Brotons-Gisbert Juan P. Martinez-Pastor Alfredo Segura Andres Cantarero Rafael Mata Josep Canet-Ferrer Gerard Tobias Enric Canadell Jose Marques-Hueso Brian D. Gerardot 2014Nano Research2014,7,10:2
3Flame retardance and shrinkage reduction of polystyrene modified with amylate - con-taining phosphorus and crosslinkable spiro -orthoester moieties 显示文摘CANADELL J HUNT B J COOK A G 2007Polymer Degradation and Stability2007,92,8:1
43MoO3显示文摘MACHADO-CHARRY E ORDEJON P CANADELL E Analysis of scanning tunneling microscopy images of the charge-density-wave phase in quasi-one-dimensional Rb 0 2006Phys Rev B2006,74,15:1
5A global analysis of root distribution for terrestrial biomass显示文摘Jackson R B Canadell J R Mooney H A 1996Oecologla1996,108,3:1
6Nummulitic banks in the Upper Lutetian Bull level Ainsa Basin, South Central Pyrenean zone; The impact of internal waves 显示文摘Mateu-Vicens G Pornar L Ferrdndez Canadell C 2012Sed- irnentology2012,59,2:1
7Contributions to accel-erating atmospheric C02 growth from economic activity, carbon intensi-ty, and efficiency of natural sinks显示文摘Canadell J G Le Quere C Raupach M R 2007Proc Natl Acad Sci USA2007,104,18:1
8Removal of metaphyseal bone tumors with preservation of the epiphysis显示文摘Canadell J Forriol F Cara JA 1994J Bone Joint Surg (Br)1994,76,1:1
9Downward flux of water through roots (i.e. inverse hydraulic lift) in dry Kalahari sands显示文摘E.-D. Schulze M. M. Caldwell J. Canadell H. A. Mooney R. B. Jackson D. Parson R. Scholes O. E. Sala P. Trimborn 1998Oecologia1998,,4:1
10Managing forests for climate change mitigation 显示文摘CANADELL J G RAUPACH M R 2008Science2008,320,5882:1
11Experimental physeal distraction in immature sheep 显示文摘De Pablos JD Canadell J 1990Clin Orthop Relat Res1990,,250:1
12Flame retardance and shrinkage reduction of polystyrene modified with acrylate- containing phosphorus and crosslinkable spiroorthoester moieties 显示文摘Canadell J Hunt BJ Cook AG 2007Polymer Degradation and Stability2007,92,:1
13Carbon Metabolism of the Terrestrial biosphere: Amultitechnique approach for improved understanding显示文摘Canadel J G Mooney H A Baldocchi D D 2000Ecosystems2000,,3:1
14A global analysis of root distributions for terrestrial biomes 显示文摘Jackson RB Canadell J Ehleilnger JR 1996Oecologia1996,108,:1
15Carbon Metabolism of the Terrestrial biosphere: A multitechnique approach for improved understanding显示文摘Canadell J G Mooney H A Baldocchi D D 2000Ecosystems2000,,3:1
16Recent patterns and mechanisms of carbon exchange by terrestrial ecosystems显示文摘Schimel D S House J I Hibbard K A Bousquet P Ciais P Peylin P Braswell B H Apps M J Baker D Bondeau A Canadell J Churkina C: Cramer W Denning A S Field CB Friedlingstein P Goodale C Heimann M Houghton RA Melillo J M Moore B 3rd Murdiyarso D Noble L Pacala S W Prentice I C Raupach M R Rayner P J Scholes R J Steffen W L Wirth C 2001Nature2001,414,:1
17Corticosteroid therapy in patients with primary viral pneumonia due to pandemic (H1 N1) 2009 influenza显示文摘Diaz E Martin-Loeches I Canadell L 0,,:1
18A global analysis of root distributions for terrestrial biomes显示文摘Jackson R B Canadell J Ehleringer J R 1996Oeeologia1996,108,:1
19Soil organic carbon pools in the northern circumpolar permafrost region 显示文摘Tarnocai C Canadell J G Schuur E A G 2009Global Biogeochemical Cycles2009,23,:1
20Current and future CO2 emissions from drained peatlands in Southeast Asia显示文摘Hooijer A Page S Canadell J G 2010Biogeosciences2010,7,:1
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