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| 1 | Phosphorus limitation on photosynthesis of two dominant understory species in a lowland tropical forest显示文摘Aims Elevated nitrogen(N)deposition in tropical regions may accelerate ecosystem phosphorus(P)limitation.However,it is not explicitly addressed that how changes in soil N and P availability affect foliar nutrients and photosynthesis of plants in tropical forests.In this study,we examined the effects of N and P additions on foliar nutrients and net photosynthesis of two dominant understory species,Randia can-thioides(R.canthioides)and Cryptocarya concinna(C.concinna)in an N-saturated old-growth tropical forest(>400-year-old)in south-ern China.Methods A full factorial NP addition experiment(2×2)was established in 2007 and continued through August 2010.Four treatments,including control,N addition(150 kg N ha^(−1) year^(−1)),P addi-tion(150 kg P ha^(−1) year^(−1))and NP addition(150 kg N ha^(−1) year^(−1) plus 150 kg P ha^(−1) year^(−1))were set up in this experiment.Photosynthetic traits maximum photosynthetic CO_(2) assimilation(Amax),stomatal conductance(gs),leaf transpiration(E),light satu-rating point,concentrations of chlorophyll a/b and foliar nutri-ents(N and P)of the two species were measured with standard methods.Important Findings Three years of N addition had no significant effects on any measured photosynthetic parameter of either species.However,N addition significantly elevated foliar N and P concentrations of one species(R.canthioides),resulting in lower photosynthetic nitrogen use effi-ciency(PNUE).N treatments decreased foliar P concentration of the other(C.concinna),resulting in increased photosynthetic phos-phorus use efficiency,which was potentially related to N-induced P shortage.In contrast,positive effects of P treatments on gs of R.can-thioides,Amax and chlorophyll a+b of C.concinna were observed.P treatments also elevated foliar P and PNUE of both species,imply-ing P induced more efficient use of N.Our results suggested a more important role of P than N on influencing photosynthetic traits of these two understory species.Alleviation of P shortage through P addition may enhance photosynthetic performances of some under-story species in N-rich tropical forests. | Feifei Zhu Xiankai Lu Jiangming Mo | 2014 | Journal of Plant Ecology2014，7，6： | 10 |
| 2 | Nitrogen deposition and its ecological impact in China: An overview显示文摘 | Xuejun Liu Lei Duan Jiangming Mo Enzai Du Jianlin Shen Xiankai Lu Ying Zhang Xiaobing Zhou Chune He Fusuo Zhang | 2010 | Environmental Pollution2010，，10： | 4 |
| 3 | Emissions of nitrous oxide from three tropical forests in Southern China in response to simulated nitrogen deposition显示文摘 | Wei Zhang Jiangming Mo Guirui Yu Yunting Fang Dejun Li Xiankai Lu Hui Wang | 2008 | Plant and Soil (-)2008，，1： | 1 |
| 4 | Amino acid composition and utilization of 30 food resources显示文摘 | Yang Chun Gao Zhongdong | 1998 | Asian Food Product Development1998，2632，： | 1 |
| 5 | Effects of experimental nitrogen additions on plant diversity in an old-growth tropical forest显示文摘 | Lu Xiankai Mo Jiangming Gilliam F S | 2010 | Global Change Biology2010，16，10： | 1 |
| 6 | Effects of experimental nitrogen additions on plant diversity in tropical forests of contrasting disturbance regimes in Southern China显示文摘 | Lu Xiankai Mo Jiangming Gilliam F S | 2011 | Environmental Pollution2011，159，10： | 1 |
| 7 | Effects of experimental nitrogen additions on plant diversity in an old-growth tropical forest显示文摘 | LU Xiankai MO Jiangming GILL1AM F S | 2010 | Global Change Biology2010，16，10： | 1 |
| 8 | Dynamics of yeast-like symbiote and itsrelationship with the virulence of brown planthopper,Nilaparvata lugens Stial,to resistantrice varieties显示文摘 | LU Zhongxian Yu Xiaoping Chen Jiangming | | J Asia-Pacific Entomol0，7，3： | 1 |
| 9 | Testing potassium limitation on soil microbial activity in a sub-tropical forest显示文摘Because potassium(K)is a rock-derived essential element that can be depleted in highly-weathered tropical soils,K availability may limit some portion of soil microbial activity in tropical forest ecosystems.In this paper we tested if K limits microbial activity in the condition of sufficient labile C supply.An incubation experiment was performed using surface soil samples(0–10 cm depth)obtained from four permanent ecological research plots in a natural sub-tropical forest in southern China.Soil samples were taken in September 2016.Heterotrophic soil respiration rates and microbial biomass were measured after the addition of glucose(both D and L)with and without K(potassium chloride).We did not observe any effects of K addition on soil microbial respiration,suggesting that K does not limit the microbial activity in the condition of sufficient labile C supply.The lack of microbial response to added K can be attributed to the high mobility of K in forest ecosystems,which may have provided sufficient K to microbes in our soil samples(already provided at the beginning of the incubation).However,at the present stage,we cannot conclude that K is not a limiting factor of soil microbial activity in other tropical forest ecosystems because of the heterogeneity of tropical forest ecosystems and few observations.The hypothesis needs to be tested in larger numbers of tropical forests. | Taiki Mori Senhao Wang Zhuohang Wang Cong Wang Hui Mo Jiangming Mo Xiankai Lu | 2019 | Journal of Forestry Research2019，30，6： | 0 |
| 10 | Preparation of Sintered Titanium Anode and Its Electrochemical Properties显示文摘In this paper, the sintered Ti anodes (STA) with Ti suboxide intermediate layers and β-MnO2 activelayers were investigated in detail. At usual industrial current densities, the oxygen evolutionoverpotential on STA is reduced by 350 mV compared with lead anodes. According to the equationobtained experimentally, the service life of STA may be expected to be more than 3 years. After los-ing activity, STA may be recoated with β-MnO2 active layers and used again. The electrocatalyticactivity and the service life of the reused anodes remained almost unchanged. The possible reasonsfor losing activity of STA during the anodic evolution of oxygen were investigated by means of elec-tron probe microanalysis, electron scanning microscope and X-ray diffraction. | Jiangming LU Bangna ZHOU Zhongxing YU Shiguan CHEN+, Shanghai University of Technology, Shanghai 200072, China | 1993 | Journal of Materials Science & Technology1993，9，2： | 0 |
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