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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 | 21世纪的室内空气品质:追求优异显示文摘现场研究表明 ,即使在许多符合现行标准和指南的建筑物中 ,也有相当多数的人对室内空气品质不满意 ,甚至出现病态建筑综合症的症状。其原因在于上述标准规定的要求过低 ,使得很多人不满意并受到不良影响。预见在 2 1世纪将发生从中等到优异的室内环境的范式转变。提出下述 5项原理作为优异准则的基本要素 :改善室内空气品质将提高生产率减少病态建筑综合症症状 ;应排除不必要的室内污染源 ;应为室内人员提供干爽的送风 ;应实行“个性化送风” ,即以少量洁净空气和缓地送到每个人的呼吸区附近 ; | P.O.范格 于晓明 | 2000 | 暖通空调2000，30，3： | 31 |
| 3 | 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 |
| 4 | 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 |
| 5 | 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 |
| 6 | 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 |
| 7 | Approximate Inertial Manifolds to the Generalized Symmetric Regularized Long Wave Equations with Damping Term显示文摘In the present paper, we construct two approximate inertial manifolds for the generalized symmetric regularized long wave equations with damping term. The orders of approximations of these manifolds to the global attractor are derived. | Bo-ling Guo, Ya-dong ShangInstitute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088, China | 2003 | Acta Mathematicae Applicatae Sinica2003，19，2： | 11 |
| 8 | Formation and Evolution of Vertisols in Huaibei Plain显示文摘The objectives of the present paper are to restore soil-forming environment of the Vertisols,to reveal their regularities of formation and evolution and to found soil chronology.In regard to formation and evolution of the Vertisols in the Huaibei Plain,they have undergone 3 cycles of deposition-formation during different geologic time (Q3^3;Q4^2 and Q4^3).Therefore,they are considered as the soils developed on heterogeneous parent material.The Vertisols as a paleosol can be divided into relict Vertisols and buried Vertisols.The former is shajiang black soils called by local people,the latter is shajiang black soils underlying Warp soil or warp soil horizon. | LIU LIANG-WUInstitute of Soil Science, Academia Sinica, P.O. Box 821, Nanjing (China) | 1991 | Pedosphere1991，1，1： | 11 |
| 9 | Tectonic setting of the Helong Block:Implications for the northern boundary of the eastern North China Craton显示文摘LA-ICP-MS zircon U-Pb dating indicates that the Bailiping granitic pluton was em-placed during Late Paleozoic to Early Cretaceous (285―116 Ma) by four distinct magmatic epi-sodes, arguing against the previous thought that the Bailiping granites were emplaced during Archean, Proterozoic or Early Paleozoic. It is suggested that the so-called Archean Jincheng-dong granite-greenstone belt, mainly composed of Bailiping granites, should be broken down. Sr-Nd isotopic compositions of the Bailiping granites are similar to those of the Phanerozoic granites in the Xing’an-Mongolian orogenic belt, suggesting that their parental magmas were mainly derived from a juvenile crust with some contamination of ancient crustal materials during magma rising and/or emplacement. Therefore, the basement of the Helong Block is similar to that in the northern Xing’an-Mongolian Orogenic Belt, but different from that of the North China Craton. It is proposed that the Archean Jinchengdong complex in this area is probably an exotic slice from the North China Craton, which indicates that the Fu’erhe-Gudonghe Fault, located in northern part of the Helong area, is not the boundary between the North China Craton and the Xing’an-Mongolian Orogenic Belt. The possible boundary should be located further southward more than 50 km and near the Baitoushan volcano. | ZHANG Yanbin1, WU Fuyuan1, ZHAI Mingguo1 & LU Xiaoping1,2 1. Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, China 2. Regional Geological and Mineral Resources Survey of Jilin Province, Changchun 130062, China | 2005 | Science China Earth Sciences2005，48，10： | 10 |
| 10 | SYNTHESIS OF INTERMETALLICS BY MECHANICAL ALLOYING显示文摘SYNTHESISOFINTERMETALLICSBYMECHANICALALLOYINGF.H.(Sam)Froes;C.Suryanarayana;andD.Mukhopadhyay(InstituteforMaterialsandAdvance... | F. H.(Sam) Froes C. Suryanarayana and D. Mukhopadhyay (Institute for Materials and Advanced Processes (IMAP), University of Idaho,Moscow, ID 83844-3026, USA)C-G. Li(BlM, P.O. Box 81 , Beijing, 100095, P.R. CHINA)K. Brand(On leave from Institut fur Werkst | 1995 | Acta Metallurgica Sinica(English Letters)1995，8，Z1： | 10 |
| 11 | Climate Changes in the 21st Century over the Asia-Pacific Region Simulated by the NCAR CSM and PCM显示文摘The Climate System Model (CSM) and the Parallel Climate Model (PCM), two coupled global climate models without flux adjustments recently developed at NCAR, were used to simulate the 20th century climate using historical greenhouse gas and sulfate aerosol forcing. These simulations were extended through the 21st century under two newly developed scenarios, a business-as-usual case (BAU, CO2≈710 ppmv in 2100) and a CO2 stabilization case (STA550, CO2≈540 ppmv in 2100). The simulated changes in temperature, precipitation, and soil moisture over the Asia-Pacific region (10°-60°N, 55°-155°) are analyzed, with a focus on the East Asian summer monsoon rainfall and climate changes over the upper reaches of the Yangtze River. Under the BAU scenario, both the models produce surface warming of about 3-5℃ in winter and 2-3℃ in summer over most Asia. Under the STA550 scenario, the warming is reduced by 0.5-1.0℃ in winter and by 0.5℃ in summer. The warming is fairly uniform at the low latitudes and does not induce significant changes in the zonal mean Hadley circulation over the Asia-Pacific do- main While the regional precipitation changes from single CSM integrations are noisy, the PCM ensemble mean precipitation shows 10%-30% increases north of ~ 30°N and~10% decreases south of ~ 30°N over the Asia-Pacific region in winter and 10%-20% increases in summer precipitation over most of the region. Soil moisture changes are small over most Asia The CSM single simulation suggests a 30% increase in river runoff into the Three Gorges Dam, but the PCM ensemble simulations show small changes in the | Aiguo Dai, G.A. Meehl, W.M. Washington, and T.M.L. Wigley National Center for Atmospheric Research P.O. Box 3000, Boulder, CO 80307 ) Email: adai@ ucar. edu The National Center for Atmospheric Research is sponsored by the U S National Science Foundation. | 2001 | Advances in Atmospheric Sciences2001，18，5： | 9 |
| 12 | Study on the Effects of End-bend Cantilevered Stator in a 2-stage Axial Compressor显示文摘Leading edge recambering is applied to the cantilevered stator vanes in a 2-stage compressor in this paper. Differentcurving effects are produced when the end-bend stator vanes are stacked in different ways. Stacking on theleading edge induces a positive curving effect near the casing.When it is stacked on the centre of gravity, a negativecurving effect takes place. The numerical investigation shows that the flow field is redistributed when theend-bend stators with leading edge stacking are applied. The variations in the stage matching for the mainstreamand near the hub have an impact on the performance of the 2-stage compressor. The isentropic efficiency and thetotal pressure ratio of the compressor are increased near the design condition. The compressor total pressure ratiois decreased near choke and near stall. The maximum flow rate is reduced and the stall margin is decreased. | Songtao WANG Xin DU Zhongqi WANG Harbin Institute of Technology, P.O. BOX 458, Harbin 150001, China | 2009 | Journal of Thermal Science2009，18，2： | 9 |
| 13 | GENERAL DIFFERENCE SCHEMES WITH INTRINSICPARALLELISM FOR SEMILINEAR PARABOLIC SYSTEMS OFDIVERGENCE TYPE显示文摘1.IntroductionIn[1]and[2]thegeneralfinitedifferenceschemeshavingtheintrinsiccharacterofparallelismfortheboundaryvalueproblemsofthenonlinearparabolicsystemofgeneralform(i.e.,non-divergencetype)arediscussedundertheassumptionthatthereisanuniquesmoothsol... | Yu-lin Zhou Guang-wei Yuan(Laboratory of Computational Physics, Center of Nonlinear Studies, Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088, China) | 1999 | Journal of Computational Mathematics1999，17，4： | 8 |
| 14 | EXACT SOLUTIONS FOR GENERAL VARIABLE-COEFFICIENT KdV EQUATION显示文摘By asing the nonclassical method of symmetry reductions, the exact solutions for general variable coefficient KdV equation with dissipative loss and nonuniformity terms are obtained. When the dissipative loss and nonuniformity terms don’t exist, the multisoliton solutions are found and the corresponding Painleve II type equation for the variable coefficient KdV equation is given. | Liu Xiqiang Jiang SongGraduate School, China Academy of Engineering and Physics, P.O. Box 2101, Beijing 100088 Dept. of Math., Liaocheng Teachers Univ., Shandong 252000. Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beiji | 2001 | Applied Mathematics(A Journal of Chinese Universities)2001，16，4： | 8 |
| 15 | BLOW-UP CRITERION OF SMOOTH SOLUTIONS TO THE MHD EQUATIONS IN BESOV SPACES显示文摘In this paper we discuss the logarithmic Sobolev inequalities in Besov spaces,and show their applications to the blow-up criterion of smooth solutions to the incompressible magneto-hydrodynamics equations. | YUAN Baoquan (Graduate School, Chinese Academy of Engineering Physics P.O. Box 2101, Beijing 100088 Department of Applied Mathematics and Informatics, Henan Polytechnic University, Jiaozuo 454000, China. | 2005 | Journal of Systems Science & Complexity2005，18，2： | 8 |
| 16 | Nutrient Cycling and Balance in Red Soil Agroecosystem and Their Management显示文摘An experiment was conducted in a red soil derived from Quaternary red clay in the Ecological ExperimentStation of Red Soil, the Chinese Academy of Sciences, located in Yingtan (28° 15′ 30″ N, 116° 55′ 30″E), Jiangxi Province. The results show that the major ways of nutrient loss are leaching and nitrogenvolatilization. Rationalizing crop distribution, stimulating nutrient recycling, and improving internal nutrientflow are effective measures to decrease nutrient loss and to promote nutrient utilization efficiency. Theimportant ways of regulating nutrient cycling and balance in the agroecosystem of the red soil are to establishoptimal eco-agricultural models, practice balanced fertilization and combine the cropping system with thelivestock system. | HE YUANQIU and LI ZHIMING.(Institute of Soil Science, the Chinese Academy of Sciences, P.O. Box 821, Nanjing 210008 China) | 2000 | Pedosphere2000，10，2： | 8 |
| 17 | Effect of Lanthanum Accumulation on Cation Exchange Capacity and Solution Composition of Red Soil显示文摘Pot and adsorption-exchange experiments were carried out by collecting the soil samples from the surface layer(0-15cm) of red soil at the Ecological Experiment Station of Red Soil,the Chinese Academy of Sciences,in Jiangxi Province of CHina.When concentration of the exogenous La^3+ exceeded 400mg kg^-1,there was less non-exchangeable La^3+ than exchangeable La^3+ in the soil.Cation exchagne capacity of the soil changed slightly with increasing concentration of the exogenous La^3+ in both experiments.However,in the adsorption-exchange experiment,when concentration of the exogenous La^3+ was higher than 300mg kg^-1,exchangeable basic cations decreased significantly,while exchangeable hydrogen and exchangeable aluminum increased significantly compared with the control treatments.The amounts of base cations(Ca^2+,Mg^2+,k^+and Na^+)exchanged by La^3+ in the supernatant solution increased with the concentration of the exogenous La^3+,especially when concentration of the exogenous La^3+ was higher than 50mg kg^-1. | XIE ZUBIN ZHU JIANGUO CHU HAIYAN CAO ZHIHONG and DENG XIHAI(Institute of Soil Science, the Chinese Academy of Sciences, P.O. Box 821, Naviing 210008 China) | 2000 | Pedosphere2000，10，2： | 6 |
| 18 | Studies of low-lying states of even-even Xe isotopes within the nucleon pair approximation显示文摘We study the relevance of nucleon pairs with higher spins, in addition to spin-zero and spin-two pairs (i.e., S D pairs), in low-lying states of even-even Xe nuclei. By including those higher-spin pairs in our configuration, we recalculate energy level schemes, elec trical quadrupole moments, magnetic moments and electric quadrupole transition rates, for low-lying states of even-even 128-142Xe nuclei. The agreement between our calculated results and the experimental data is substantially improved in comparison with previous studies. | ZHANG LiHua1, JIANG Hui1,2 & ZHAO YuMin1,3,4 1Institute of Nuclear, Particle, Astrophysics and Cosmology, Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China 2School of Arts and Sciences, Shanghai Maritime University, Shanghai 200135, China 3Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China 4CCAST, World Laboratory, P.O. Box 8730, Beijing 100080, China | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，S1： | 5 |
| 19 | A NEW FAMILY OF TRUST REGION ALGORITHMS FOR UNCONSTRAINED OPTIMIZATION显示文摘Trust region(TR)algorithms are a class of recently developed alogrthms for nonlinear optimization.A new family of TR algorithms for unconstrained optimization,which is the extension of the usual TR method,is pressented in this paper.When the objective function is bounded below and continuously differentiable,and the norm of the Hesse approximations increases at most linearly with the iteration number,we prove the global convergence of the algorithms.Limited numerical results are repoted,which indicate that our new TR algorithm is competitive. | Yuhong Dai Dachuan Xu(State Key Laboratory of Scientific/Engineering Computing, Institute of Computational Mathematicsand Scientific/Engineering Computing, Academy of Mathematics and System Sciences, ChineseAcademy of Sciences, P.O. Box 2719, Beijing 100080, China) | 2003 | Journal of Computational Mathematics2003，21，2： | 5 |
| 20 | Pedosphere and Its Effect on Global Changes显示文摘With development of modern geoscience, particularly development of environmental sciences, the contemporary soil science is undergoing great changes in both research contents and scope. Soil is not onlya certain substance or a certain independent natural historical body but also a spheric layer with peculiarstructure and functions in the earth system. From the viewpoint of the geo-biosphere system of earth, soilscience does deal not only with the soil substances per se but also more importantly with the relationshipsamong soil, the other spheres and the human survival environment in view of the 'pedosphere'. This is thenew orientation of soil science today and will affect profoundly the studies on the human survival environmentand global changes. To throw more light on this subject, the present paper intends to address the conceptionof pedosphere and its role in global changes. Also addressed are series of environmental issues in China andtheir relations to the global changes. Moreover, research orientation and priorities are indicated, includingexploitation and protection of the soil resources, soil fertility and sustainable agricultural development, construction of the ecological environment, and the material cycling in pedosphere and its relation to globalchanges. | ZHAO QIGUO and CAO HUI(Institute of Soil Science, the Chinese Academy of Sciences, P.O. Box 821, Nauling 210008 China) | 2000 | Pedosphere2000，10，2： | 5 |
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