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| 1 | Combined Pollution and Pollution Index of Heavy Metals in Red Soil显示文摘A field experiment was conducted to study the effects of Pb, Cd, Cu, Zn and As coexisting in red soilon growth of rice (Oryza sativa L.), mung bean (Vigna rabiata (Linn.) Wilczek), alfalfa (Medicago sativaL.), slash pine (Pinus elliottii Engelm.) and aspen (Populus L.). Results showed that rice, mung bean andalfalfa were significantly innuenced by combined pollution of the heavy metals. The contents of Pb, cd andAs in rice grains greatly exceeded the National Standards for Food Hygiene of China. Heavy metals at ahigh concentration seriously retarded growth of mung bean and alfalfa, but not so obviously with slash pineand aspen. The composite index is suggested for evaluating the relativity of combined pollution witll heavymetals in soil. | CHEN HUAIMAN ZHENG CHUNRONG WANG SHENQIANG and TU CONG(Institute of Soil Science, the Chinese Academy of Sciences, P.O. Box 821, Naroing 210008 China) | 2000 | Pedosphere2000,10,2: | 56 |
| 2 | The Constrained Solutions of Two Matrix Equations | An Ping LIAO Zhong Zhi BAI Department of Mathematics. Hunan University. Changshu, 410082. P. R. China Department of Mathematics and Information Science, Changsha University, Changsha 410003. P. R. China Academy of Mathematics and System. Sciences. Chinese Academy of Sciences. Beijing 100080. P. R. China State Key Laboratory of Scientific/Engineering Computing. Chinese Academy of Sciences. Institute of Computational Mathematics and Scientific/Engineering Computing. Academy of Mathematics and System Sciences. Chinese Academy of Sciences. P. O. Box 2719. Beijing 100080. P. R. China | 2002 | Acta Mathematica Sinica,English Series2002,18,4: | 40 |
| 3 | Microbial Biomass Carbon and Total Organic Carbon of Soils as Affected by Rubber Cultivation显示文摘Soil samples were collected from different rubber fields in twenty-five plots selected randomly in the Experimental Farm of the Chinese Academy of Tropical Agriculture Sciences located in Hainan, China, to analyse the ecological effect of rubber cultivation. The results showed that in the tropical rubber farm,soil microbial biomass C (MBC) and total organic C (TOC) were relatively low in the content but highly correlated with each other. After rubber tapping, soil MBC of mature rubber fields decreased significantly,by 55.5%, compared with immature rubber fields. Soil TOC also decreased but the difference was not significant. Ratios of MBC to TOC decreased significantly. The decreasing trend of MBC stopped at about ten years of rubber cultivation. After this period, soil MBC increased relatively while soil TOC still kept in decreasing. Soil MBC changes could be measured to predict the tendency of soil organic matter changes due to management practices in a tropical rubber farm several years before the changes in soil TOC become detectable. | ZHANG Hua and ZHANG Gan-LinInstitute of Soil Science, the Chinese Academy of Sciences, P. O. Box 821, Nanjing 210008 | 2003 | Pedosphere2003,13,4: | 35 |
| 4 | Dissection of genetic overlap of salt tolerance QTLs at the seedling and tillering stages using backcross introgression lines in rice显示文摘QTLs for salt-tolerance(ST)related traits at the seedling and tillering stages were identified using 99 BC2F8 introgression lines(IL)derived from a cross between IR64(indica)as a recurrent parent and Binam(japonica)from Iran as the donor parent.Thirteen QTLs affecting survival days of seedlings(SDS), score of salt toxicity of leaves(SST),shoot K + concentration(SKC)and shoot Na + concentration(SNC) at the seedling stage and 22 QTLs underlying fresh weight of shoots(FW),tiller number per plant(TN) and plant height(PH)at the tillering stage were identified.Most QTLs detected at the tillering stage showed obvious differential expression to salt stress and were classified into three types based on their differential behaviors.Type I included 11 QTLs which were expressed only under the non-stress condition.Type II included five QTLs expressed in the control and the salt stress conditions,and three of them(QPh5,QPh8 and QTn9)had similar quantity and the same direction of gene effect,suggesting their expression was less influenced by salt stress.Type III included six QTLs which were detectable only under salt stress,suggesting that these QTLs were apparently induced by the stress.Thirteen QTLs affecting trait difference or trait stability of ILs between the stress and non-stress conditions were identified and the Binam alleles at all loci except QPh4,QTn2 and QFw2a decreased trait difference.The three QTLs less influenced by the stress and 13 QTLs affecting trait stability were considered as ST QTLs which contributed to ST.Comparing the distribution of QTLs detected at the seedling and tillering stages,most(69%)of them were genetically independent.Only four were the same or adjacent regions on chromosomes 1,2,8 and 11 harboring ST QTLs detected at the two stages,suggesting that partial genetic overlap of ST across the two stages occurs.It is likely,therefore,to develop ST rice variety for both stages by pyramiding of ST QTLs of different stages or selection against the overlapping QTLs between the two stages via marker-assisted selection(MAS). | ZANG JinPing 1 ,SUN Yong 1 ,WANG Yun 1 ,YANG Jing 1 ,LI Fang 1 ,ZHOU YongLi 1 ,ZHU LingHua 1 , Reys JESSICA2,Fotokian MOHAMMADHOSEIN 2,XU JianLong 1&LI ZhiKang 1,2 1Institute of Crop Sciences/National Key Facility for Crop Gene Resources&Genetic Improvement,Chinese Academy of Agricul- tural Sciences,Beijing 100081,China 2International Rice Research Institute,DAPO Box 7777,Metro Manila,Philippines | 2008 | Science China(Life Sciences)2008,51,7: | 32 |
| 5 | Genetic analysis and gene mapping of a new rolled-leaf mutant in rice (Oryza sativa L.)显示文摘To understand the development of rice leaf blades,we identified a new rolled-leaf mutant,w32,from indica cultivar IR64 through EMS mutagenesis. The mutant showed a stable rolled-leaf phenotype throughout the life cycle. Two F2 populations were developed by crossing w32 to cultivar IR24 and PA64. Genetic analysis showed that the rolled-leaf phenotype was controlled by a single recessive gene. To determine the location of the gene,bulked segregant analysis was carried out using mutant and wild-type DNA pools and 1846 mutant-type F2 individuals derived from the cross w32/PA64 were genotyped to locate the gene on the short arm of chromosome 7. The rolled-leaf gene,tentatively named rl11(t),is likely a new gene as no other rolled-leaf genes have been identified near the region. By developing new SSR and InDel markers,the gene was delimited to a 52 kb region near the end of the short chromosome arm. Further fine mapping and cloning of the gene are currently underway. | SHI YongFeng1,2,CHEN Jie1,LIU WenQiang1,HUANG QiNa1,2,SHEN Bo2,LEUNG Hei3 & WU JianLi1 1 Chinese National Center for Rice Improvement/National key Laboratory for Rice Biology,China National Rice Research Institute,Hangzhou 310006,China 2 College of Life and Environmental Sciences,Hangzhou Normal University,Hangzhou 310016,China 3 International Rice Research Institute,Metro Manila DAPO Box 7777,Philippines | 2009 | Science China(Life Sciences)2009,52,9: | 29 |
| 6 | Estimate of Methane Emission from Rice Paddy Fieldsin Taihn Region, China显示文摘EstimateofMethaneEmissionfromRicePaddyFieldsinTaihnRegion,ChinaCAIZU-CONG;XUHUA;ZHANGHAN-HUI;andJINJI-SHENG(InstituteofSoilSc... | CAI ZU-CONG XU HUA ZHANG HAN-HUI and JIN JI-SHENG(Institute of Soil Science, Chinese Academy of Sciences, P. O. Box 821, Nanjing 210008 ( China)Agricultural Extension Station of Wuxian County, Suzhou 215007 (China)) | 1994 | Pedosphere1994,4,4: | 22 |
| 7 | 2002—Emergence of the Gas-to-Liquids Industry:a Review of Global GTL Developments显示文摘This paper reviews the status of the gas-to-liquids (GTL) industry - including currentcommercial plants, announced projects and the technologies that are likely to be implemented in thesefuture projects. Today, only 35,000 B/D of GTL products (0.1% of market) are manufactured fromcommercial gas-based plants. Advances in technology have lowered the cost of plants to the point whereGTL plants can be profitable at crude oil prices of $16/B. The advanced stage of development of severalproposed GTL projects and attractive integrated economics, for both the gas field and plant, show thatGTL can be a significant alternative for monetizing natural gas in the 21st century. GTL technologiesincludes more than Fischer-Tropsch technology and extends to other liquid fuels, especially in the oxygenatefamily (methanol, dimethyl ether, etc.). | T.H.Fleisch,R.A.Sills,M.D.BriscoeBP Upstream Technology Group, P. O. Box 3092, Houston, TX 77253, USA | 2002 | Journal of Natural Gas Chemistry2002,11,1: | 22 |
| 8 | INFLUENCE OF PULSED MAGNETIC FIELD ON MICROSTRUC-TURES AND MACRO-SEGREGATION IN 2124 Al-ALLOY显示文摘The structures and macro-segregation of 2124 Al-alloy were studied when a pulsedmagnetic field (PMF) was applied during solidification. It is found through experi-ments that a remarkable change occurs in the solidification structures of 2124 Al-alloyunder pulsed magnetic field. The eutectic phase at grain boundaries change from thickcontinuous eutectic network to thin discontinuous one, and the distribution of soluteelements was also homogenized. The typical negative segregation phenomenon of Cu incommon solidification condition was restrained, and the segregation of Mg decreased. | C.Y.Ban,J.Z.Cui,Q.X.Ba,G.M.Lu and B.J.ZhangP.O. Box 317, The Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110004, China Manuscript received 10 October 2001 | 2002 | Acta Metallurgica Sinica(English Letters)2002,15,4: | 19 |
| 9 | Theoretical analyses and numerical experiments of variational assimilation for one-dimensional ocean temperature model with techniques in inverse problems显示文摘In the present work, the data assimilation problem in meteorology and physical oceanography is re-examined using the variational optimal control approaches in combination with regularization techniques in inverse problem. Here the estimations of the initial condition, boundary condition and model parameters are performed simultaneously in the framework of variational data assimilation. To overcome the difficulty of ill-posedness, especially for the model parameters distributed in space and time, an additional term is added into the cost functional as a stabilized functional. Numerical experiments show that even with noisy observations the initial conditions and model parameters are recovered to an acceptable degree of accuracy. | HUANG Sixun1,2, HAN Wei1 & WU Rongsheng2 1. P. O. Box 003, Nanjing 211101,China 2. Key Laboratory of Meso-Scale Severe Weather /MOE, Department of Atmospheric Sciences, Nanjing University, Nanjing 210093, China Correspondence should be addressed to Huang Sixun | 2004 | Science China Earth Sciences2004,47,7: | 18 |
| 10 | An Application of a Mountain Pass Theorem | ZHOU Huan Song Laboratory of Mathematical Physics. Wuhan Institute of Physics and Mathematics. Chinese Academy of Sciences, P. O. Box 71010, Wuhan 430071. P. R. China | 2002 | Acta Mathematica Sinica,English Series2002,18,1: | 18 |
| 11 | Environmental Issues Related to Chemical Fertilizer Use in China显示文摘EnvironmentalIssuesRelatedtoChemicalFertilizerUseinChinaCAOZHIHONG(LMCP,InstituteofSoilScience,AcademiaSinica,P.O.Box821,Nanj... | CAO ZHIHONG (LMCP, Institute of Soil Science, Academia Sinica, P. O. Box 821, Nanjing 210008 China) | 1996 | Pedosphere1996,6,4: | 17 |
| 12 | Accumulation of Organic Matter in Infertile Red Soils and Its Ecological Importance显示文摘Field experiments on the decomposition of organic materials and the accumulation of organic carbon in infertile red soils were conducted at the Ecological Experimental Station of Red Soil,the Chinese Academy of Sciences,and the potential of CO2 sequestration by redlamation and improving the fertility of these soils was estimated.Results showed that in infertile red soils,the humification coefficinets of organic materials were rather high,ranging from 0.28 to 0.63 with an average of 0.43,which was 41% higher than those in corresponding red soils with medium fertility.THis was mainly attributed to the high clay content.high acidity and low native organic matter content of infertile red soils.Compared to those in corresponding normal red soils,the decomposition rates of organic materials were significantly lower in infertile red soils in the first 2 years,thereafter no significant difference was observed between those in the two kinds of soils.Depending on the kind and amount of organic manure applied,the soil properties and the rotation systems,annual application of organic manure with a rate of 4500 to 9000kgha^-1 increased the organic carbon content in surface 20cm of infertile red soils by 2.1-7.5g kg^-1 with an average of 4.7g kg^-1 within the first 5years.The organic carbon content in infertile red soils which received organic manure annually increased linearly in the first 10 years,thereafter it slowed down,implying that the fertility of the infertile red soils could reach middle or high level in 10 years if the soil was managed properly.It was estimated that through exploitation of wastelands,re-establishment of fuel forests and improvement of soil fertility,soils in red soil region of China could sequester an extra 1.50×10^15 g of atmospheirc CO2. | LI ZHONGPEI CHENG LILI and LIN XINXIONG(Institute of Soil Science, the Chinese Academy of Sciences, P.O. Box 821, Naroing 210008 China) | 2000 | Pedosphere2000,10,2: | 16 |
| 13 | On the Huanghai (Yellow) Sea circulation:a review by current measurements显示文摘The Huanghai (Yellow) Sea circulations suggested in the past were constructed mostly based on hydrographic data or simple numerical models, and were not rigorously compered with direct current measurements. Ourpresent understanding of the Huanghai Sea circulation is still very poor and superficial. To evaluate our present knowledge about the circulation and to sketch a more realistic circulation pattern, the previous studies on the circulation arebriefly reviewed and directly measured current data collected in the past are revisited. The Huanghai Sea Warm Current and the northeastward extension in summer of the Changjiang diluted water are paid more attention to, which arethe major currents of the basic circulation, and then attempted to sketch the Huanghai Sea circulation by synthesizinghydrography and current data. The Huanghai Sea circulation is not considered to be persistent since the thin water column, less than 100 m, responds quickly and sensitively to external driving forces. Directly measured current data showthat saline water originating from the Kuroshio water turns clockwise around Cheju-do throughout the year and eventually joins the Tsushima Warm Current at the western channel of the Korea Strait. This clockwise current is called theCheju Warm Current. The current data do not support the persistent existence of the Huanghai Sea Warm Current,which has ho believed to supply heat and salt to the Huanghai Sea throughout the year. However, a northward flowis generated intermittently during the weakening phase of cold air outbreaks in winter. The northeast extension of theChangjiang diluted water in summer is evidenced by satellite-tracked surface drifters. | Heung-Jae Lie(Physical Oceanography Dvision, Korea Ocean Research and Development Institute, P.O. Box 29, Ansan, 425 - 600Seoul, Korea) | 1999 | Acta Oceanologica Sinica1999,18,3: | 15 |
| 14 | Chemopreventive Effects of Black Tea Polyphenols in Mouse Skin Model of Carcinogenesis显示文摘In the present investigations, the antitumorigenic effect of black tea polyphenols (BTP) in twcrstage mouse skin model of carcinogenesis was studied. The animals were initiated with a single 'subcarcinogenic' topical dose (52 μg/200 μl acetone ) of 7, 12-dimethylbenzanthracene (DMBA). To evaluate the anti-tumour initiating activity, BTP was topically applied twice a week for three weeks prior to DMBA application, followed by topical treatment with 12-o-tetradecanoyl phorbol-13-acetate (TPA) (5 μg/200 μl acetone, 2x/wk. ) as promoter. For evaluation of antitumor promoting activity, BTP was applied prior to each treatment of TPA. BTP application showed marked inhibitory effect as antitumour initiator as well as antitumour promoter in mouse skin medel of two-stage carcinogenesis. Since initiation involves genetic pathway and tumour promotion involves epigenetic pathway, it seems that BTP exerts its antitumorigenic effect by altering both genetic and epigenetic | SEEMA JAVED N. K. MEHROTRA AND YOGESHWER SHUKLA(Laboratory of Environmental Chrcinogenesis, Industrial Toxicology Research Centre, M. G. Marg, P. O. Box 80,Lucknow - 226001, India) | 1998 | Biomedical and Environmental Sciences1998,11,4: | 15 |
| 15 | Recovery of heavy metals from electroplating sludge and stainless steel pickle waste liquid by ammonia leaching method显示文摘A coordinative disposal process for treatment of electroplating sludge and stainless steel pickle waste liquid containing Cu, Ni, Zn, Cr and Fe etc., has been developed to recover valuable metals and to eliminate pollution. The recovery of Cu, Ni, Zn and Cr is 94%, 91%, 90% and 95%, respectively. The ammonia was recycled by the simplified process of CaO caustic distillation. The precipitated product of Cu, Ni and Zn obtained from caustic distillation of ammonia was separated by extraction or high\|pressure hydrogen reduction in an autoclave. The qualified metal salt products were obtained through extraction. The rich chromium residue from coordinative disposal was subjected to recover Cr by hydrothermal oxidation in NaOH medium and Fe\-3O\-4 was synthesized by wet methods from the residue produced by extracting Cr. Cr was a stable chemical fixed in Fe\-3O\-4 and harmless. The recovery process has been used in a pilot plant with sludge production capacity of 2000 t/a. | Zhang Yi, Wang Zhi\|kuan, Xu Xia, Chen Yong\|qi, Qi Tao Institute of Chemical Metallurgy, Chinese Academy of Sciences,P.O. Box 353, Beijing 100080, China | 1999 | Journal of Environmental Sciences1999,11,3: | 15 |
| 16 | The Bedload Movement in the Changjiang Estuary显示文摘- Sandwaves in the Changjiang estuary were measured with a shallow sediment profiler and an echosounder from 1978 to 1988. The data, together with grain size and bedform of sediment indicates that the bedload movement by rolling and saltation is of great significance to sediment transport and is the principal factor responsible for sandwave and sandbody development in the estuary. The sandwaves were found well-developed, which is related to the tidal range and the velocity of ebb current. However, the further growth is restricted by strong flood current prevailing in the estuary. Because of the significant bedload, the sandbodies shift obviously and frequently, and sometimes the exchange of position occurs between the sandbodies and tidal channels. As a result, ships are regularly forced to change their navigation course. | Li Jiufa, Shi Weirong, Shen Huanting Xu Haigen and Doeke Eisma Associate Professor, Institute of Estuarine & Coastal Research (1ECR), East China Normal University, Shanghai200062 Professor, IECR, East China Normal University, Shanghai 200062 Professor, Netherlands Institute for Sea Research, P. O. Box 59 1790 AB, Den Burg, Texel, The Netherlands | 1993 | China Ocean Engineering1993,8,4: | 15 |
| 17 | Leaching and Redistribution of Nutrients in Surface Layer of Red Soils in Southeast China显示文摘The leaching and redistribution of nutrients in the surface layer of 4 types of red soils in Southeast China were studied with a lysimeter experiment under filed conditions.Results showed that the leaching concentrated in the rainy season(from April to June).Generally,the leaching of soil nutrients from the surface layer of red soils was in the order of Ca>Mg>K>NO3-N,In fertilization treatment,the total amount of soil nutrients leached out of the surface layer in a red soil derived from granite was the highest in all soils.The uptake by grass decreased the leaching of fertilizer ions in surface layer,particularly for No3-N,Soil total N and exchangeable K,Ca and Mg in the surface layer decreased with leaching and grass uptake during the 2 years without new fertilization of urea,Ca(H2PO4)2,KCl,CaCO3 and MgCO3,Ca moved from the application layer(0-5cm) of fertilizer and accumulated in the 10-30cm depth in the soils studied except that derved from quaternary red clay.The deficiency of soil exchangeable K will become a serious degradation process facing the Southeast China. | SUN BO ZHANG TAOLIN and ZHAO QIGUO(Institute of Soil Science, the Chinese Academy of Sciences, P.O. Box 821, Naniing 210008 China) | 2000 | Pedosphere2000,10,2: | 14 |
| 18 | Phenolic Acids in Plant-Soil-Microbe System: A Review显示文摘Phenolic acids are very common compounds in pedosphere. The objective of this review was to summarize the current knowledge of the behaviors of phenolic acids in plant-soil-microbe system. When phenolic acids originated from leaching, decomposition and exudation of living and dead plant tissues enter soils, they can react physicochemically with soil particle surfaces and/or incorporate into humic matter. Phenolic acids desorbed from soil particle surfaces and remained in solution phase can be utilized by microbe as carbon sources and absorbed by plants. The degradation products of phenolic acids by microbe include some organic and/or inorganic compounds such as new phenolic acids. In addition, phenolic acids in soils can stimulate population and activity of microbe. Phenolic acids can inhibit plants growth by affecting ion leakage, phytohormone activity, membrane permeability, hydraulic conductivity, net nutrient uptake, and enzyme activity. Behaviors of phenolic acids in soils are influenced by other organic compounds (phenolic acids, methionine, glucose, etc.) and/or inorganic ions. The role of phenolic acids as allelopathic agents should not be neglected only based on their low specific concentrations in natural soils, because numbers and interactions of phenolic acids will increase their allelopathic activities. | LI SHOUTIAN, ZHOU JIANMIN, WANG HUOYAN and CHEN XIAOQIN Institute of Soil Science, the Chinese Academy of Sciences, P. O. Box 821, Nanjing S10008 (China) | 2002 | Pedosphere2002,12,1: | 13 |
| 19 | Inulin Can Alleviate Metabolism Disorders in ob/ob Mice by Partially Restoring Leptinrelated Pathways Mediated by Gut Microbiota显示文摘Inulin has been used as a prebiotic to alleviate glucose and lipid metabolism disorders in mice and humans by modulating the gut microbiota. However, the mechanism underlying the alleviation of metabolic disorders by inulin through interactions between the gut microbiota and host cells is unclear. We use ob/ob mice as a model to study the effect of inulin on the cecal microbiota by16 S rRNA gene amplicon sequencing and its interaction with host cells by transcriptomics. The inulin-supplemented diet improved glucose and lipid metabolism disorder parameters in ob/ob mice,alleviating fat accumulation and glucose intolerance. The a diversity of gut microbial community of ob/ob mice was reduced after inulin treatment, while the b diversity tended to return to the level of wild type mice. Interestingly, Prevotellaceae UCG 001(family Prevotellaceae) was obviously enriched after inulin treatment. A comparative analysis of the gene expression profile showed that the cecal transcriptome was changed in leptin gene deficiency mice, whereas the inulin-supplemented diet partially reversed the changes in leptin gene-related signaling pathways, especially AMPK signaling pathway, where the levels of gene expression became comparable to those in wild type mice.Further analysis indicated that Prevotellaceae UCG 001 was positively correlated with the AMPK signaling pathway, which was negatively correlated with markers of glycolipid metabolism disorders. Our results suggest that the inulin-supplemented diet alleviates glucose and lipid metabolism disorders by partially restoring leptin related pathways mediated by gut microbiota. | Xiaofeng Song Liang Zhong Na Lyu Fei Liu Boxing Li Yanan Hao Yong Xue Jing Li Yuqing Feng Yue Ma Yongfei Hu Baoli Zhu | 2019 | Genomics, Proteomics & Bioinformatics2019,17,1: | 12 |
| 20 | 主要人参皂甙的分布和比例及人参产品的质量控制显示文摘采用反相高效液相色谱法,对150多种西洋参、人参及三七的根、叶及其产品进行了分析。以8种主要的人参皂甙Rg,Re,Rf,Rb1,Rc,Rb2,Rg2和Rd作为对照品,来评价人参及其产品的质量,这8种人参皂甙的分布及其比例在对人参及其商品的定性、定量分析方面具有显著的意义。本文首次提出了单体皂甙的含量比率这一有价值的数据在人参品种及不同用药部位鉴定方面的有效性。 | Ma Yuanchun Luo Mai Lynn Malley Monique Doucet(Celex Laboratories Inc., Atholville Industrial Park, 77 Comeau St.,P. O. Box 428,Atholville,New Brunswick CANADA EOK 1A0) | 1996 | 中国药物化学杂志1996,6,1: | 12 |