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| 1 | Nutrient Accumulation and Distribution of Mature Pinus massoniana Plantation in Northwestern Guangxi显示文摘[Objectives]This study was conducted to reveal the characteristics of nutrient absorption and accumulation in Pinus massoniana plantations in Northwestern Guangxi.[Methods]Based on field investigation and indoor analysis,the contents,accumulation and annual net accumulation of five nutrient elements(N,P,K,Ca and Mg)in a mature P.massoniana plantation(26-year-old)in Nandan County,Guangxi Province were studied.[Results]The contents of nutrient elements in different organs of the mature P.massoniana plantation were the highest in the leaves,followed by the bark,branch and root,and the lowest in the stem.In general,among the contents of the five elements in different organs,N content was the highest,followed by K or Ca,and P and Mg were the lowest.The total accumulation of nutrient elements in the 26-year-old mature P.massoniana plantation in northwestern Guangxi was 1 384.05 kg/hm^2.Among the different structural levels of the stand,the tree layer had the highest accumulation of nutrient elements,which was 1 198.41 kg/hm^2,accounting for 86.59%of the total accumulation of nutrients in the plantation,and the accumulation of nutrients in other layers from the largest to the smallest was the litter layer(91.97 kg/hm^2),herb layer(49.86 kg/hm^2)and shrub layer(43.92 kg/hm^2),accounting for 3.17%,3.60%and 6.64%of the total nutrient accumulation of the plantation,respectively.The annual net accumulation of nutrient elements in the tree layer of the mature P.massoniana plantation was 46.09 kg/(hm^2·a),and the order of the annual net accumulation of different nutrient elements followed N>K>Ca>Mg>P;and the accumulation of 1 t of dry matter needed 6.37 kg of the five nutrients.[Conclusions]This study provides a scientific basis for the rational management of P.massoniana plantations,especially forest soil management. | Minyang XIE Zhenge HUANG Mingbao WEI Bin HE Shaozhuang MO Gang ZHOU JI LIANG | 2019 | Agricultural Biotechnology2019，8，4： | 2 |
| 2 | CASPT2 Investiga- tion of Ethane Dissociation and Methyl Recombination Using Canonical Variational Transition State Theory 显示文摘 | Li Hua Chen Bozhen Huang Mingbao | 2008 | Int J Chem Kinet2008，40，4： | 1 |
| 3 | The matrix protein CCN1 (CYR61) promotes proliferation, migration and tube formation of endothelial progenitor cells显示文摘 | Yang Yu Yu Gao Hong Wang Lan Huang Jun Qin Ruiwei Guo Mingbao Song Shiyong Yu Jianfei Chen Bin Cui Pan Gao | 2008 | Experimental Cell Research2008，，17： | 1 |
| 4 | Viologen-Decorated TEMPO for Neutral Aqueous Organic Redox Flow Batteries显示文摘A novel electroactive organic molecule,viz.,1-(1-oxyl-2,2,6,6-tetramethylpiperidin-4-yl)-1′-(3-(trimethylammonio)propyl)-4,4′-bipyridinium trichloride((TPABPy)Cl3),is synthesized by decorating 2,2,6,6-tetramethylpiperidin-1-oxyl(TEMPO)with viologen,which is used as the positive electrolyte in neutral aqueous redox flow battery(ARFB).Extensive characterizations are performed to investigate the composition/structure and the electrochemical behavior,revealing the favorable effect of introducing the cationic viologen group on the electroactive TEMPO.Salient findings are as follows.First,the redox potential is elevated from+0.745V for TEMPO to+0.967V for decorated TEMPO,favoring its use as the positive electrolyte.Such an elevation originates from the electron-withdrawing effect of the viologen unit,as evidenced by the nuclear magnetic resonance and single crystal structure analysis.Second,linear sweep voltammetry reveals that the diffusion coefficient is 2:97×10^(−6) cm^(2) s^(−1),and the rate constant of the one-electron transfer process is 7:50×10^(−2) cm s^(−1).The two values are sufficiently high as to ensure low concentration and kinetics polarization losses during the battery operation.Third,the permeability through anion-exchange membrane is as low as 1:80×10^(−11) cm^(2) s^(−1).It is understandable as the positive-charged viologen unit prevents the molecule from permeating through the anion exchange membrane by the Donnan effect.Fourth,the ionic nature features a decent conductivity and thus eliminates the use of additional supporting electrolyte.Finally,a flow battery is operated with 1.50M(TPABPy)Cl3 as the positive electrolyte,which affords a high energy density of 19.0WhL-1 and a stable cycling performance with capacity retention of 99.98%per cycle. | Shuzhi Hu Liwen Wang Xianzhi Yuan Zhipeng Xiang Mingbao Huang Peng Luo Yufeng Liu Zhiyong Fu Zhenxing Liang | 2021 | Energy Material Advances2021，，1： | 1 |
| 5 | An experimental study on the dynamic axial plastic buckling of a cylindrical shell显示文摘 | Wang Ren Han Mingbao Huang Zhuping | 1983 | Int J Impact Engng1983，1，： | 1 |
| 6 | Beneficial effects of a polysaccharide from Salvia miltiorrhiza on myocardial ischemia–reperfusion injury in rats显示文摘 | Mingbao Song Lan Huang Gang Zhao Yaoming Song | 2013 | Carbohydrate Polymers2013，，： | 1 |
| 7 | Benefi- cial effects of a polysaccharide from Salvia miltiorrhiza on myocardial ischemia-reperfusion injury in rats显示文摘 | Mingbao Song Lan Huang Gang Zhao | 2013 | Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharldes2013，98，2： | 1 |
| 8 | Carbon Storage and Distribution of the Mature Pinus massoniana Plantation in Northwest Guangxi显示文摘[Objectives]This study was conducted to understand the carbon sequestration function of mature Pinus massoniana plantation in northwest Guangxi.[Methods]The carbon storage and distribution in a 26-year-old P.massoniana plantation were investigated through biomass harvesting in Shankou Forestry Farm of Nandan County,Guangxi Province.[Results]The average carbon content of P.massoniana was 489.3 g/kg,and the carbon contents of different organs ranked from large to small as pine needles > trunks > trunk bark > roots > branches.The carbon contents of understory shrub layer,herb layer and litter layer were 453.0,425.6 and 482.5 g/kg,respectively.The soil organic carbon content in forestland varied from 6.20 to 32.15 g/kg,decreasing with the depth of the soil layer.The carbon storage of the mature P.massoniana plantation ecosystem was 232.13 t/hm^2,of which the tree layer,shrub layer,herb layer,litter layer and soil layer were 92.67,1.36,1.12 and 134.49 t/hm^2,respectively,which accounted for 39.92%,0.59%,0.48%,1.07% and 57.94% of the carbon storage of the whole ecosystem,respectively.The annual net productivity of the tree layer of the mature P.massoniana plantation was 10.36 t/(hm^2·a),the annual net carbon sequestration was 5.41 t/(hm^2·a),and the annual net CO2 absorption was 19.83 t/(hm^2·a).[Conclusions]This study provides basic data and scientific basis for rational evaluation of the ecological benefits of P.massoniana plantation in this area. | Zhenge HUANG Minyang XIE Mingbao WEI Bin HE Shaozhuang MO Gang ZHOU Ji LIANG | 2019 | Agricultural Biotechnology2019，8，3： | 0 |
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