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64篇 您的检索式:作者名="Li zaijun"
    题名 作者 年代 出处 被引量
1Effect of Reclamation Time and Land Use on Soil Properties in Changjiang River Estuary,China显示文摘The objective of this study is to analyze soil physical and chemical properties,soil comprehensive functions and impact factors after different years of reclamation.Based on the survey data taken from 216 soil sampling points in the Fengxian Reclamation Area of the Changjiang (Yangtze) River Estuary,China in April 2009 and remotely sensed TM data in 2006,while by virtue of multivariate analysis of variance (MANOVA),geo-statistical analysis (GA),prin-cipal component analysis (PCA) and canonical correspondence analysis (CCA),it was concluded that:1) With the in-crease in reclamation time,soil moisture,soil salinity,soil electric conductivity and soil particle size tended to decline,yet soil organic matter tended to increase.Soil available phosphorous tended to increase in the early reclamation period,yet it tended to decline after about 49 years of reclamation.Soil nitrate nitrogen,soil ammonia nitrogen and pH changed slightly in different reclamation years.Soil physical and chemical properties reached a steady state after about 30 years of reclamation.2) According to the results of PCA analysis,the weighted value (0.97 in total) that represents soil nutrient factors (soil nitrate nitrogen,soil organic matter,soil available phosphorous,soil ammonia nitrogen,pH and soil particle size) were higher than the weighted value (0.48 in total) of soil limiting factors (soil salinity,soil elec-tric conductivity and soil moisture).The higher the F value is,the better the soil quality is.3) Different land use types play different roles in the soil function maturity process,with farmlands providing the best contribution.4) Soil physi-cal and chemical properties in the reclamation area were mainly influenced by reclamation time,and then by land use types.The correlation (0.1905) of the composite index of soil function (F) with reclamation time was greater than that with land use types (-0.1161).SUN Yongguang LI Xiuzhen ülo MANDER HE Yanlong JIA Yue MA Zhigang GUO Wenyong XIN Zaijun 2011Chinese Geographical Science2011,21,4:17
2Major advances in studies of the physical geography and living environment of China during the past 70 years and future prospects显示文摘The natural environment provides material essentials for human survival and development. The characteristics,processes, regional differentiation and forcing mechanisms of the elements of the natural environment(e.g. geomorphology,climate, hydrology, soil, etc.) are the main objects of research in physical geography. China has a complex natural environment and huge regional differentiation and therefore it provides outstanding reserach opportunities in physical geography. This review summarizes the most important developments and the main contributions of research in the physical geography and human living environment in China during the past 70 years. The major topics addressed are the uplift of the Tibetan Plateau and the evolution of its cryosphere, the development of fluvial systems, the acidification of the vast arid region of the Asian interior, variations in the monsoon and westerly climate systems on multiple timescales, the development of lakes and wetlands, the watershed system model, soil erosion, past human-environment interactions, biogeography, and physical geographic zonality. After briefly introducing international research developments, we review the history of research in physical geography in China, focusing on the major achievements and major academic debates, and finally we summarize the status of current research and the future prospects. We propose that in the context of the national demand for the construction of an ecological civilization, we should make full use of the research findings of physical geography, and determine the patterns and mechanisms of natural environmental processes in order to continue to promote the continued contribution of physical geography to national development strategies, and to further contribute to the theory of physical geography from a global perspective.Fahu CHEN Bojie FU Jun XIA Duo WU Shaohong WU Yili ZHANG Hang SUN Yu LIU Xiaomin FANG Boqiang QIN Xin LI Tingjun ZHANG Baoyuan LIU Zhibao DONG Shugui HOU Lide TIAN Baiqing XU Guanghui DONG Jingyun ZHENG Wei YANG Xin WANG Zaijun LI Fei Wang Zhenbo HU Jie WANG Jianbao LIU Jianhui CHEN Wei HUANG Juzhi HOU Qiufang CAI Hao LONG Ming JIANG Yaxian HU Xiaoming FENG Xingguo MO Xiaoyan YANG Dongju ZHANG Xiuhong WANG Yunhe YIN Xiaochen LIU 2019Science China Earth Sciences2019,62,11:11
3胸腔置管白介素-2联合顺铂治疗恶性胸腔积液的临床观察(英文)显示文摘Objective: The aim of our study was to explore the short-term effects and complication of interleukin-2 (IL-2) combining with Cisplatin in the treatment of malignant hydrothorax.Methods: Sixty-two cases patients with malignant hydrothorax were randomly divided into two groups.Observation group was 31 examples,thoracic cavity injection IL-2 and Cisplatin;31 cases in control group using Cisplatin alone intra-thoracic injection.The regime of every week for 1–4 weeks was used to observe short term effects and complications.Results: The total response rate in observe group was higher than that in control group (90.3% vs.68.1%),which had statistically significant difference (P < 0.05).The complications included gastrointestinal tract reaction,bone marrow inhibition,chest pain and fever.The incidence rates of chest pain and fever in observe group was slightly higher than that in control group,but there was no statistically significant difference (P > 0.05).Conclusion: The IL-2 combining with Cisplatin intra-thoracic injection for malignant hydrothorax has the features of good therapeutic effects and slight poisonous side effects,which is worth to be used in clinic.Cheng Xu Zaijun Zhang Yuezhen Hu Yeyuan Wang Mingquan Li 2011The Chinese-German Journal of Clinical Oncology2011,10,1:3
4Impact Factors on Distribution and Characteristics of Natural Plant Community in Reclamation Zones of Changjiang River Estuary显示文摘To identify impact factors on the distribution and characters of natural plants community in reclamation area, with survey data from 67 plant quadrats in July 2009, soil properties data from 216 sampling points in April 2009, and TM (30 m) data in 2006, the composition and characteristics of natural plants community in different time of the Fengxian area in the Changjiang (Yangtze) River estuary were analyzed with two-way indicator species analysis (TWINSPAN), multivariate analysis of variance (MANOVA), detrended canonical correspondence analysis (DCCA) and canonical correspondence analysis (CCA). The results show that: 1) The plant communities in the reclaimed area are mainly mesophytes and helophytic-mesophytic transitional communities, showing a gradient distribution trend with the change in reclamation years. Species richness (MA), species diversity (H) and above-ground biomass also increase with the increase of reclamation years. Nevertheless, they appear to decline slightly in the middle and late reclamation period (> 30 years). 2) With the rise in land use levels, the changes in species richness and species diversity tend to increase at first and then decrease; species dominance (D), however, tends to decline; and above-ground biomass increases slightly. 3) The distribution of the plant community is mainly influenced by the following factors: land use levels (R = 0.55, p < 0.05), soil moisture (R = 0.53, p < 0.05), soil salinity (R = 0.43, p < 0.05) and reclamation time (R = 0.40, p < 0.05).SUN Yongguang LI Xiuzhen HE Yanlong JIA Yue MA Zhigang GUO Wenyong XIN Zaijun 2012Chinese Geographical Science2012,22,2:2
59 (2,4- dihydroxyphenyl) 2, 3, 7 trihydroxyl-6-fluorone as analytical reagent for spectrophotometric determina tion of trace molybdenum in plant tissues显示文摘Li Zaijun Yang Yuling Tang Jian 2005Journal of Food Composition and Analysis2005,18,:1
6Determination of Trace Molybdenum in Vegetable and Foodsamples by Spectrophotometry with P- carboxyphenylflnuorone显示文摘Li Zaijun Pan Jiaomai Tang Jian 2002Aanlyticai and Bioanalytical Chemistry2002,374,6:1
7Determination of trace molybdenum in vegetable and food samples by spectrophotometry with p-carboxyphenylfluorone 显示文摘Li zaijun Pan jiaomai 2002Analytical and Bioanalytical Chemistry2002,374,6:1
89-(2,4-dihydroxyphenyl)-2,3,7-trihydroxyl-6-fluorone as analytical reagent for speetrophotometric determination of molybdenum in plant tissues 显示文摘Li Zaijun Yang Yuling Tang Jian 2005Journal of Food Composition and Analysis2005,18,6:1
9A new room temperature ionic liquid 1-butyl-3-trimethylsilylimidazolium hexafluorophosphate as a solvent for extraction and preconcentration of mercury with determination by cold vapor atomic absorption spectrometry显示文摘Zaijun Li Qin Wei Rui Yuan Xia Zhou Huizhen Liu Haixia Shan Qijun Song 2006Talanta2006,,1:1
10Synthesis of a novel dialkylaryl disulfonate gemini surfactant 显示文摘LI ZAIJUN YUAN RUI LIU ZHONGYUN 2005Journal of Surfactants and Detergents2005,8,4:1
11Determination of Trace Molybdenum in Vegetable and food Samples by Spectrophotometry with p-carboxyphenylfluorone显示文摘Li Zaijun Pan Jiaomai Tang Jian 2002Analytical Bioanalytical Chemistry2002,374,6:1
12Spectrophotometric Determination of Iron( Ⅲ )-dimethyldithiocarbamate (Ferbam) Using 9-(4-carboxyphenyl)-2, 3, 7-trihydroxyl-6-fluorone显示文摘Li Zaijun Fan You Liu Zhongyun 2004Talanta2004,63,3:1
13Spectroho2tometric Determination of Lead in Biological Samples with Di2bromo2p2methyl2methylsulfonazo显示文摘Li Zaijun Zhu Zhengzhong Chen Yepu 1999Talanta1999,48,:1
14Determination of trace molybdenum in vegetable and food samples by spectrophotometry with p-carboxyphenylfluorone显示文摘LI Zaijun PAN Jiaomai TANG Jin 2002Analytical and Bioanalytical Chemistry2002,374,6:1
15Spectrophoto- metric determination of trace molybdenum in plants and seeds with 3, 5-dibromo-4-hydroxyphenylflurone 显示文摘LI Zaijun PAN Jiaomai TANG Jian 2001Analyst2001,126,7:1
16Determination of nickel in food by spectrophotometry with o-carboxylbenzenediazoaminoazobenzene显示文摘Li Zaijun Pan Jiaomai Tang Jan 2002Analytical Letters2002,35,1:1
17Determination ofcadmium in tableware leach solution by spectropho-tometry using 2,6-dimethylphenyldiazoaminobenzene显示文摘Zaijun Li Jian Tang Jiaomai Pan 2006Food Control2006,17,3:1
18A new temperature ionic liquid 1-butyl-3-trimethylsilylimidazolium hexafluorophosphate as a solvent for extraction and preconcentration of mercury with determination by cold vapor atomic absorption spectrometry显示文摘Li zaijun Wei Qin Zhou Xia Yuan Rui Liu Huizhen Shan Haixia Song Qijun 2007Talanta2007,71,1:1
19Determination of nickel in food by spectrophotometry with-o-carboxylbenzenediazoaminoazobenzene 显示文摘Li Zaijun Pan Jiaomai Tang Jan 2002Analytical Letters2002,35,1:1
209-(2,4-dihydroxyphenyl)-2,3,7-trihydroxyl-6-fluorone as analytical reagent for spectrophotometric determination of molybdenum in plant tissues显示文摘Li Zaijun Yang Yuling Tang Jian Pan Jiaomai 2005Journal of Food Composition and Analysis2005,18,6:1
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