罗志斌
主要从事植物抗逆生理(抗旱、抗盐、抗重金属、抗寒、抗高光照、抗紫外辐射)、植物与环境之间的相互作用(植物与CO2浓度升高、氮素沉降、菌根菌的相互作用)、植物材料品质评价(纸浆材和纤维素乙醇用材林木的品质评价)等方面的研究工作。
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- 姓名:罗志斌
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学术头衔:
教育部“新世纪优秀人才支持计划”入选者, 博士生导师
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学科领域:
植物学
- 研究兴趣:主要从事植物抗逆生理(抗旱、抗盐、抗重金属、抗寒、抗高光照、抗紫外辐射)、植物与环境之间的相互作用(植物与CO2浓度升高、氮素沉降、菌根菌的相互作用)、植物材料品质评价(纸浆材和纤维素乙醇用材林木的品质评价)等方面的研究工作。
罗志斌,男,汉族,生于1973年11月。西北农林科技大学生命科学学院教授,博士生导师。主要从事植物抗逆生理(抗旱、抗盐、抗重金属、抗寒、抗高光照、抗紫外辐射)、植物与环境之间的相互作用(植物与CO2浓度升高、氮素沉降、菌根菌的相互作用)、植物材料品质评价(纸浆材和纤维素乙醇用材林木的品质评价)等方面的研究工作。利用植物生理学、细胞生物学、生物化学与分子生物学等学科知识,从代谢组学、基因组学和蛋白质组学水平对植物对变化的环境条件的适应性及其适应机制进行研究。
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罗志斌
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-1年11月30日
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罗志斌
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罗志斌
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罗志斌
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罗志斌, Zhi-Bin Luo, Carlo Calfapietra, Giuseppe Scarascia-Mugnozza, Marion Liberloo, Andrea Polle
Plant Soil (2008) 304: 45-57,-0001,():
-1年11月30日
The goal of this study was to investigate whether increased nitrogen use efficiency found in Populus nigra L. (Jean Pourtet) under elevated CO2 would correlate with changes in the production of carbon-based secondary compounds (CBSCs). Using Free-Air CO2 Enrichment (FACE) technology, a poplar plantation was exposed to either ambient (about 370 μmol mol-1 CO2) or elevated (about 550 μmol mol-1 CO2) [CO2] for 5 years. After three growing seasons, the plantation was coppiced and half of the experimental plots were fertilized with nitrogen. CBSCs, total nitrogen and lignin-bound nitrogen were quantified in secondary sprouts in seasons of active growth and dormancy during 2 years after coppicing. Neither elevated CO2 nor nitrogen fertilisation alone or in combination influenced lignin concentrations in wood. Soluble phenolics and soluble proteins in wood decreased slightly in response to elevated CO2. Higher nitrogen supply stimulated formation of CBSCs and increased protein concentrations. Lignin-bound nitrogen in wood ranged from 0.37-1.01 mg N g-1 dry mass accounting for 17-26% of total nitrogen in wood, thus, forming a sizeable nitrogen fraction resistant to chemical degradation. The concentration of this nitrogen fraction was significantly decreased by elevated CO2, increased in response to nitrogen fertilisation and showed a significant CO2 × fertilisation interaction. Seasonal changes markedly affected the internal nitrogen pools. Soluble proteins in wood were 52-143% higher in the dormant than in the growth season. Positive correlations existed between the biosynthesis of proteins and CBSCs. The limited responses to elevated CO2 and nitrogen fertilisation indicate that growth and defence are well orchestrated in P. nigra and that changes in the balance of both resources-nitrogen and C-have only marginal effects on wood chemistry.
Lignin, Phenolics, Tannins, Soluble proteins, Internal nitrogen pools, Populus
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罗志斌, ZHI-BIN LUO*, CARLOCAL FAPIETRA†, MARION LIBERLO‡, GIUSEPPE SCARA SCIA-MUGNOZZA† and ANDREA POLLE*
Global Change Biology (2006) 12, 272-283,-0001,():
-1年11月30日
To determine whether globally increasing atmospheric carbon dioxide (CO2) concentrations can affect carbon partitioning between nonstructural and structural carbon pools in agroforestry plantations, Populus nigra was grown in ambient air (about 370 lmol mol 1 CO2) and in air with elevated CO2 concentrations (about 550 lmol mol 1 CO2) using freeair CO2 enrichment (FACE) technology. FACE was maintained for 5 years. After three growing seasons, the plantation was coppiced and one half of each experimental plot was fertilized with nitrogen. Carbon concentrations and stocks were measured in secondary sprouts in seasons of active growth and dormancy during 2 years after coppicing. Although FACE, N fertilization and season had significant tissue-specific effects on carbon partitioning to the fractions of structural carbon, soluble sugars and starch as well as to residual soluble carbon, the overall magnitude of these shifts was small. The major effect of FACE and N fertilization was on cell wall biomass production, resulting in about 30% increased above ground stocks of both mobile and immobile carbon pools compared with fertilized trees under ambient CO2. Relative C partitioning between mobile and immobile C pools was not significantly affected by FACE or N fertilization. These data demonstrate high metabolic flexibility of P. nigra to maintain C-homeostasis under changing environmental conditions and illustrate that nonstructural carbon compounds can be utilized more rapidly for structural growth under elevated atmospheric [CO2] in fertilized agroforestry systems. Thus, structural biomass production on abandoned agricultural land may contribute to achieving the goals of the Kyoto protocol.
agroforestry, bark, biomass, carbon sequestration, global change, Kyoto protocol, Populus, sugar, starch, xylem
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罗志斌, MARION LIBERLOO, , SOPHIE Y. DILLEN, CARLO CALFAPIETRA, SARA MARINARI, ZHI BIN LUO, PAOLO DE ANGELIS and REINHART CEULEMANS
Tree Physiology 25, 179-189,-0001,():
-1年11月30日
We investigated the individual and combined effects of elevated CO2 concentration and fertilization on aboveground growth of three poplar species (Populus alba L. Clone 2AS-11, P. nigra L. Clone Jean Pourtet and P. × euramericana Clone I-214) growing in a short-rotation coppice culture for two growing seasons after coppicing. Free-air carbon dioxide enrichment (FACE) stimulated the number of shoots per stool, leaf area index measured with a fish-eye-type plant canopy analyzer (LAIoptical), and annual leaf production, but did not affect dominant shoot height or canopy productivity index. Comparison of LAIoptical with LAI estimates from litter collections and from allometric relationships showed considerable differences. The increase in biomass in response to FACE was caused by an initial stimulation of absolute and relative growth rates, which disappeared after the first growing season following coppicing. An ontogenetic decline in growth in the FACE treatment, together with strong competition inside the dense plantation, may have caused this decrease. Fertilization did not influence aboveground growth, although some FACE responses were more pronounced in fertilized trees.Aspecies effect was observed for most parameters.
aboveground net primary production, aboveground wood biomass, absolute growth rate, canopy productivity index, FACE, leaf area index, leaf production, nitrogen, relative growth rate, Populus.,
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罗志斌, MARION LIBERLOO*, CARLO CALFAPIETRA†, MARTIN LUKAC‡, DOUGLAS GODBOLD‡, ZHI-BINLUO§, ANDREA POLLE§, MARCEL R. HOOSBEEK, OLEVI KULL, MICHAL MAREK**, CHRISTINE RAINES‡‡, MAURO RUBINO‡‡, GAILTAY LOR§§, G IUSEPPE SCARASCIA-MUGNOZZA‡ and REINH ARTCEUL EMANS*
Global Change Biology (2006) 12, 1094-1106,-0001,():
-1年11月30日
The quickly rising atmospheric carbon dioxide (CO2)-levels, justify the need to explore all carbon (C) sequestration possibilities that might mitigate the current CO2 increase. Here, we report the likely impact of future increases in atmospheric CO2 on woody biomass production of three poplar species (Populus alba L. clone 2AS-11, Populus nigra L. clone Jean Pourtet and Populus euramericana clone I-214). Trees were growing in a high-density coppice plantation during the second rotation (i.e., regrowth after coppice; 2002-2004; POPFACE/EUROFACE). Six plots were studied, half of which were continuously fumigated with CO2 (FACE; free air carbon dioxide enrichment of 550 ppm). Half of each plot was fertilized to study the interaction between CO2 and nutrient fertilization. At the end of the second rotation, selective above-and belowground harvests were performed to estimate the productivity of this bio-energy plantation. Fertilization did not affect growth of the poplar trees, which was likely because of the high rates of fertilization during the previous agricultural land use. In contrast, elevated CO2 enhanced biomass production by up to 29%, and this stimulation did not differ between above-and belowground parts. The increased initial stump size resulting from elevated CO2 during the first rotation (1999-2001) could not solely explain the observed final biomass increase. The larger leaf area index after canopy closure and the absence of any major photosynthetic acclimation after 6 years of fumigation caused the sustained CO2-induced biomass increase after coppice. These results suggest that, under future CO2 concentrations, managed poplar coppice systems may exhibit higher potential for C sequestration and, thus, help mitigate climate change when used as a source of C-neutral energy.
bio-energy, biomass distribution, EUROFACE, FACE, fertilization, leaf area index, photosynthesis, Populus, short rotation coppice, woody biomass
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