|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effect of Slash Burning on Nutrient Removal and Soil Fertility in Chinese Fir and Evergreen Broadleaved Forests of Mid-Subtropical China显示文摘A Chinese fir forest (Cunninghamia lanceolata, CF) and an evergreen broadleaved forest (EB) located inFujian Province, southeastern China, were examined following slash burning to compare nutrient capital andtopsoil properties with pre-burn levels. After fire, nutrient (N, P and K) removal from burning residues wasestimated at 302.5 kg ha-1 in the CF and 644.8 kg ha-1 in the EB. Fire reduced the topsoil capitals of totalN and P by about 20% and 10%, respectively, in both forests, while K capital was increased in the topsoils ofboth forests following fire. Total site nutrient loss through surface erosion was 28.4 kg (N) ha-1, 8.4 kg (P)ha-1 and 328.7 kg (K) ha-1 in the CF. In the EB, the losses of total N, P and K were 58.5, 10.5 and 396.3kg ha-1, respectively. Improvement of soil structure and increase in mineralization of nutrients associatedwith increased microbe number and enzyme activities and elevated soil respiration occurred 5 days after fire.However, organic matter and available nutrient contents and most of other soil parameters declined one yearafter fire on the burned CF and EB topsoils. These results suggest that short-term site productivity canbe stimulated immediately, but reduced subsequently by soil and water losses, especially in South China,where high-intensity precipitation, steep slopes and fragile soil can be expected. Therefore, the silviculturalmeasurements should be developed in plantation management. | YANG YUSHENG, GUO JIANFEN, CHEN GUANGSHUI, HE ZONGMING and XIE JINSHENGFujian Agriculture and Forestry University, Nanping 353001 (China) | 2003 | Pedosphere2003，13，1： | 19 |
| 2 | Numerical simulations and comparative analysis for two types of storm surges in the Bohai Sea using a coupled atmosphere-ocean model显示文摘The Bohai Sea is extremely susceptible to storm surges induced by extratropical storms and tropical cyclones in nearly every season. In order to relieve the impacts of storm surge disasters on structures and human lives in coastal regions, it is very important to understand the occurring of the severe storm surges. The previous research is mostly restricted to a single type of storm surge caused by extratropical storm or tropical cyclone. In present paper, a coupled atmosphere-ocean model is developed to study the storm surges induced by two types of extreme weather conditions. Two special cases happened in the Bohai Sea are simulated successively. The wind intensity and minimum sea-level pressure derived from the Weather Research and Forecasting (WRF) model agree well with the observed data. The computed time series of water level obtained from the Regional Ocean Modeling System (ROMS) also are in good agreement with the tide gauge observations. The structures of the wind fields and average currents for two types of storm surges are analyzed and compared. The results of coupled model are compared with those from the uncoupled model. The case studies indicate that the wind field and structure of the ocean surface current have great differences between extratropical storm surge and typhoon storm surge. The magnitude of storm surge in the Bohai Sea is shown mainly determined by the ocean surface driving force, but greatly affected by the coastal geometry and bathymetry. | Yong Li Xin Chen Xingyu Jiang Jianfen Li Lizhu Tian | 2019 | Acta Oceanologica Sinica2019，38，9： | 8 |
| 3 | Effect of heat-disturbance on microbial biomass carbon and microbial respiration in Chinese fir(Cunninghamia lanceolata) forest soils显示文摘Prescribed fire has now become the usual management practice in the Chinese fir(Cunninghamia lanceolata(Lamb.) Hook.) plantation in southern China.Heat generated during fire may affect carbon(C) dynamics in soils. We investigated the microbial biomass C(MBC) and microbial respiration in two Chinese fir forest soils(one is not exposed to fire for the past 88 years, and the other is recently exposed to prescribed fire) after soil heating(100 and 200℃ ) under three moisture regimes[25, 50 and 75 % of water holding capacity(WHC)]. For both soils, significant reduction in MBC with increasing heating temperature was found. Soils without exposing to fire previously had significantly greater MBC concentration than the fire-exposed soils when heated at 100 or 200℃ . Lower soil water content resulted in higher MBC concentrations in both soils. In contrast, both soils had the highest soil microbial respiration rate at 50 % WHC. Soils without exposing to fire previously had the greatest microbial respiration rates at 200℃ , while the fire-exposed soils when heated at 100℃ had greatest microbial respiration rates. During 14-days post-heat incubation,soil MBC in both soils was greatest after heating at 200℃ and 25 % WHC. However, soil previously exposed to fire had the lowest CO2 evolution when incubated at 25 %WHC. | Jianfen Guo Guangshui Chen Jinsheng Xie Zhijie Yang Yusheng Yang | 2015 | Journal of Forestry Research2015，26，4： | 5 |
| 4 | Holocene sea level trend on the west coast of Bohai Bay,China: reanalysis and standardization显示文摘Using 110 newly revised Holocene sea level indicators categorized into three types,sediments(67),shelly cheniers(27)and oyster reefs(16),this paper firstly provides a Holocene relative sea level curve,based on multiple approaches of litho-and biostratigraphies and sedimentary faces analysis,for the west coast of Bohai Bay,China.Following considerations,including indicative meaning,the paleo tidal pattern and range and conversion from mean tidal level to mean sea level,an apparent relative mean sea level(RMSL)curve was further reconstructed.After systematical calibration using CALIB,those of the 48 reworked samples were further corrected for the residence-time effect.Similarly,the younger ages for another 35 samples were chosen at the subsample level.These result in a younger-oriented shift for about 0.5 ka.Three local spatial factors,including neotectonic subsidence(average rate about 0.1 mm/a),self-compaction of unconsolidated sediments(between a few decimeters to about 6 m)and subsidence due to groundwater withdrawal(between a few centimeters to about 2.5 m),were quantitatively corrected.Finally,the amended RMSL curve after eliminating all these local temporo-spatial factors is very likely to show non-existence of mid-Holocene highstand and imply potential influences of both ice-volume equivalent sea level and regional glacial isostatic adjustment.Although it is still unable to divide both global and regional factors,the slowdown of sea level rise,in 7.5–6.8 ka with a maximum height less than+1 m,may constrain the model effort in the near future. | Jianfen Li Zhiwen Shang Fu Wang Yongsheng Chen Lizhu Tian Xingyu Jiang Qian Yu Hong Wang | 2021 | Acta Oceanologica Sinica2021，40，7： | 5 |
| 5 | Effect of poly(ethylene oxide) with different molecular weights on the electrospinnability of sodium alginate显示文摘 | Huarong Nie Aihua He Wanling Wu Jianfen Zheng Shanshan Xu Junxing Li Charles C. Han | 2009 | Polymer2009，，20： | 2 |
| 6 | Experimental research of condensate blockage and mitigating effect of gas injection显示文摘The condensate blockage causes a substantial decrease in well productivity for gas condensate reservoirs.Based on the previous studies,a novel experimental method was designed to evaluate condensate blockage and the mitigating effect of gas injection.The method considers the stacking effect in the near wellbore region and the gas flow in the far wellbore region.There is an intermediate vessel containing condensate gas at the entrance of core holder in the experimental apparatus.In the process of pressure depletion experiment in a long core model,the vessel is connected to the core and the pressure of the vessel remains above the dew point pressure.The seriousness of condensate blockage is investigated by this research.When pressure drops to maximum retrograde condensation pressure,the gas permeability decreases by 80%compared with the initial gas permeability.Contrastive experiments were conducted to study the removal effect of different injection fluids and different injection volumes.The results show that CO2 injection is more effective than methanol in mitigating condensate blockage and the optimal CO2 injection volume is around 0.15 HCPV。 | Zhouhua Wang Shili Zhu Wei Zhou Huang Liu Yisheng Hu Ping Guo Jianfen Du Junjie Ren | 2018 | Petroleum2018，4，3： | 2 |
| 7 | The Late Quaternary Coastal Geo-Environment Evolution and Modern Process of Bohai Bay,China显示文摘Paleoenvironmental reconstruction is fundamental to understand the modern environmental changes and to predict future environment,which is especially critical to understand the evolution of land and sea during geological periods.However,the basic geological research on China’s muddy coastal zone is not enough to | WANG Fu SHANG Zhiwen LI Jianfen CHEN Yongsheng WANG Hong | 2015 | Acta Geologica Sinica(English Edition)2015，89，6： | 2 |
| 8 | A New Family of Ce6MoO15 as Fast Oxide Ion Conductor显示文摘A novel solid solution Ce6MoO15 was achieved. Their structure and oxide ionic conductivity were studied.Based on Ce6MoO15, rare earth element substitution on cerium site shows that all resulting oxides enhance the conductivity further, and have high oxide-ion conductivity, which may be a kind of promising material for SOFCs. | Feng Jing Bo Qibing Che Ping Wang Jingping Liu Jianfen Lu Minfeng Zhang Deping Fang Daqing Cao Xueqiang Meng Jian | 2004 | Journal of Rare Earths2004，22，z2： | 2 |
| 9 | Multi-platform omics analysis reveals molecular signature for COVID-19 pathogenesis,prognosis and drug target discovery显示文摘Disease progression prediction and therapeutic drug target discovery for Coronavirus disease 2019(COVID-19)are particularly important,as there is still no effective strategy for severe COVID-19 patient treatment.Herein,we performed multi-platform omics analysis of serial plasma and urine samples collected from patients during the course of COVID-19.Integrative analyses of these omics data revealed several potential therapeutic targets,such as ANXA1 and CLEC3B.Molecular changes in plasma indicated dysregulation of macrophage and suppression of T cell functions in severe patients compared to those in non-severe patients.Further,we chose 25 important molecular signatures as potential biomarkers for the prediction of disease severity.The prediction power was validated using corresponding urine samples and plasma samples from new COVID-19 patient cohort,with AUC reached to 0.904 and 0.988,respectively.In conclusion,our omics data proposed not only potential therapeutic targets,but also biomarkers for understanding the pathogenesis of severe COVID-19. | Yuming Li Guixue Hou Haibo Zhou Yanqun Wang Hein Min Tun Airu Zhu Jingxian Zhao Fei Xiao Shanwen Lin Dongdong Liu Dunrong Zhou Lang Mai Lu Zhang Zhaoyong Zhang Lijun Kuang Jiao Guan Qiushi Chen Liyan Wen Yanjun Zhang Jianfen Zhuo Fang Li Zhen Zhuang Zhao Chen Ling Luo Donglan Liu Chunke Chen Mian Gan Nanshan Zhong Jincun Zhao Yan Ren Yonghao Xu | 2021 | Signal Transduction and Targeted Therapy2021，6，5： | 1 |
| 10 | Preparation of Bentonite/PAM Humidity-controlling Membrane by Coordinating Intercalation Polymerization Method显示文摘 | CAO Liyun HUANG Jianfen | 2004 | Journal of Shanxi University of Science & Technology2004，22，1： | 1 |
| 11 | Hydrogen-rich gas from catalytic steam gasification of municipal solid waste (MSW): influence of catalyst and temperature on yield and product composition 显示文摘 | He Maoyun Hu Zhiquan Xiao Bo Li Jianfen Guo Xianjun Luo Siyi Yang Fan Feng Yu Yang Guangjun Liu Shiming | 2009 | International Journal of Hydrogen Energy2009，34，1： | 1 |
| 12 | Effect of porous mediumadsorption on the percolation law of condensate gas mixture显示文摘 | Li Shilun Sun Lei | 1998 | SPE509261998，12，： | 1 |
| 13 | Effects of Chain Conformation and Entanglement on the Eleetrospinning of Pure Alginate显示文摘 | Huarong Nie Aihua He Jianfen Zheng | 2008 | Biomacromotecules2008，9，： | 1 |
| 14 | Con- struction of hierarchical structures by electrospinning or elec trospraying 显示文摘 | Jianfen Zheng Haiyuan Zhang Zhiguo Zhao | 2012 | Polymer2012，53，2： | 1 |
| 15 | Synthesis, Electrical and Magnetic Properties of Fe304 Doped by Dy^3+显示文摘 | Wang Jingping Hao Xianfeng Lü Minfeng Liu Jianfen Xing Xianran Meng Jian | 2006 | Journal of Rare Earths2006，24，4： | 1 |
| 16 | Structures and property analysis of ceramic coating produced by SHS RFA process显示文摘 | Geng Jianfen Li Hailin Wu Dongdi | 1997 | Journal of east china university of science and technology1997，23，2： | 1 |
| 17 | Effects of Chain conformation and entanglement on the electrospinning of pure alginate显示文摘 | Nie Huarong Zheng Jianfen Xu Shanshan | 2008 | Biomacromolecules2008，9，5： | 1 |
| 18 | Rapidly increas- ing prevalence of HIV and syphilis and HIV-1 subtype characterization among men who have sex with men in Jiangsu, China 显示文摘 | GUO Hongxiong WEI Jianfen YANG Haitao | 2009 | J STD2009，36，： | 1 |
| 19 | Electrochemical removal of ammonium nitrogen in high efficiency and N_(2) selectivity using non-noble single-atomic iron catalyst显示文摘Ammonia nitrogen (NH_(4)^(+)-N) is a ubiquitous environmental pollutant,especially in offshore aquaculture systems.Electrochemical oxidation is very promising to remove NH_(4)^(+)-N,but suffers from the use of precious metals anodes.In this work,a robust and cheap electrocatalyst,iron single-atoms distributed in nitrogen-doped carbon (Fe-SAs/N-C),was developed for electrochemical removal of NH_(4)^(+)-N from in wastewater containing chloride.The FeSAs/N-C catalyst exhibited superior activity than that of iron nanoparticles loaded carbon(Fe-NPs/N-C),unmodified carbon and conventional Ti/IrO_(2)-TiO_(2)-RuO_(2)electrodes.And high removal efficiency (>99%) could be achieved as well as high N_(2)selectivity (99.5%) at low current density.Further experiments and density functional theory (DFT) calculations demonstrated the indispensable role of single-atom iron in the promoted generation of chloride derived species for efficient removal of NH_(4)^(+)-N.This study provides promising inexpensive catalysts for NH_(4)^(+)-N removal in aquaculture wastewater. | Fengjiao Quan Guangming Zhan Bing Zhou Cancan Ling Xiaobing Wang Wenjuan Shen Jianfen Li Falong Jia Lizhi Zhang | 2023 | Journal of Environmental Sciences2023，，3： | 1 |
| 20 | An exploration of phonation types in Wu dialects of Chinese显示文摘 | Cao Jianfen & Ian Meddieson | 1992 | Journal of Phonetics 201992，，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员