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| 1 | 宁城县南山根的石椁墓显示文摘宁城县现属辽宁省昭鸟达盟,境内山岭起伏,北部有老哈河的支流坤都河经此流过。南山根村在宁城县西,八里罕镇的东北约四公里,因位于坤都河上游的南岸山下而得名。村后是高约500米的山坡,山坡下部已辟为耕地,这里有古代遗址一处。1958年春季,在遗址的东部曾发现一批铜器,大小共71件。据当地群众介绍,系出自沟侧的两个地点,估计都是墓葬。1961年中国科学院考古研究所内蒙古工作队曾在这里作过调查和发掘,判明这里主要为夏家店上层和下层的两种文化遗存,并在地面上散布有零星的战国陶片。 | CPAM,Jouda League,Liaoning Province and the Northeast Archaeological Team,IAAS | 1973 | 考古学报1973，，2： | 64 |
| 2 | Finite-dimensional Lie superalgebras of Cartan type over fields of prime characteristic显示文摘IN this note the infinite-dimensional Lie superalgebras of Cartan type X(m,n)(X=W,S,H or K)over field F of prime characteristic are constructed.Then the second class of finite-dimensional Lie superalgebras of Cartan type over F is defined.Their simplicity and re-strictability are discussed.Finally a conjecture about classification of the | ZHANG YongzhengDepartment of Mathematics, Northeast Normal University, Changchun, 130024, China | 1997 | Chinese Science Bulletin1997，42，9： | 73 |
| 3 | Carbon density and distribution of six Chinese temperate forests显示文摘Quantifying forest carbon(C) storage and distribution is important for forest C cycling studies and terrestrial ecosystem modeling.Forest inventory and allometric approaches were used to measure C density and allocation in six representative temperate forests of similar stand age(42-59 years old) and growing under the same climate in northeastern China.The forests were an aspen-birch forest,a hardwood forest,a Korean pine plantation,a Dahurian larch plantation,a mixed deciduous forest,and a Mongolian oak forest.There were no significant differences in the C densities of ecosystem components(except for detritus) although the six forests had varying vegetation compositions and site conditions.However,the differences were significant when the C pools were normalized against stand basal area.The total ecosystem C density varied from 186.9 tC hm-2 to 349.2 tC hm-2 across the forests.The C densities of vegetation,detritus,and soil ranged from 86.3-122.7 tC hm-2,6.5-10.5 tC hm-2,and 93.7-220.1 tC hm-2,respectively,which accounted for 39.7% ± 7.1%(mean ± SD),3.3% ± 1.1%,and 57.0% ± 7.9% of the total C densities,respectively.The overstory C pool accounted for > 99% of the total vegetation C pool.The foliage biomass,small root(diameter < 5mm) biomass,root-shoot ratio,and small root to foliage biomass ratio varied from 2.08-4.72 tC hm-2,0.95-3.24 tC hm-2,22.0%-28.3%,and 34.5%-122.2%,respectively.The Korean pine plantation had the lowest foliage production efficiency(total biomass/foliage biomass:22.6 g g-1) among the six forests,while the Dahurian larch plantation had the highest small root production efficiency(total biomass/small root biomass:124.7 g g-1).The small root C density decreased with soil depth for all forests except for the Mongolian oak forest,in which the small roots tended to be vertically distributed downwards.The C density of coarse woody debris was significantly less in the two plantations than in the four naturally regenerated forests.The variability of C allocation patterns in a specific forest is jointly influenced by vegetation type,management history,and local water and nutrient availability.The study provides important data for developing and validating C cycling models for temperate forests. | ZHANG QuanZhi & WANG ChuanKuan* College of Forestry,Northeast Forestry University,Harbin 150040,China | 2010 | Science China(Life Sciences)2010，53，7： | 36 |
| 4 | Diversity and ecological distribution of endophytic fungi associated with medicinal plants显示文摘A total of 973 isolates of endophytic fungi were recovered from 1144 tissue fragments of the six me-dicinal plant species belonging to 4 families collected in the Beijing Botanical Garden. Of these isolates 778 sporulated and were identified into 21 taxa by morphological characteristics. Among the taxa 11 belonged to Coelomycetes, 6 to Ascomycetes, and 4 to Hyphomycetes. Various numbers of endophytic fungi (5―8 taxa) were obtained from each plant. Alternaria alternata was the dominant species in the 6 plants, and Microsphaeropsis conielloides was also dominant in Eucommia ulmoides. There were high colonization rates (47.9%―63.1%) and isolation rates (0.7―0.93) of endophytic fungi, and they were conspicuously higher in twigs than those in leaves in the 6 plants examined. The colonization and isolation rates of endophytic fungi increased with the twig age. The results based on the analyses of cluster and Sorenson's similarity coefficients indicated that some endophytic fungi showed a certain degree of host and tissue preference. | SUN JianQiu1,2,3, GUO LiangDong1, ZANG Wei2,3, PING WenXiang4 & CHI DeFu3 1 Systematic Mycology and Lichenology Laboratory, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China 2 College of Life Science and Engineering, Qiqihar University, Qiqihar 161006, China 3 College of Forestry, Northeast Forestry University, Harbin 150040, China 4 College of Life Science, Heilongjiang University, Harbin 150080, China | 2008 | Science China(Life Sciences)2008，51，8： | 34 |
| 5 | SOME NEW CONSTRUCTIONS OF CARTESIAN AUTHENTICATION CODES FROM SYMPLECTIC GEOMETRY显示文摘SOMENEWCONSTRUCTIONSOFCARTESIANAUTHENTICATIONCODESFROMSYMPLECTICGEOMETRYYOUHong;GAOYou(NortheastNormalUniversity,Changchun130... | YOU Hong GAO You(Northeast Normal University, Changchun 130024) | 1994 | Systems Science and Mathematical Sciences1994，7，4： | 31 |
| 6 | Quantitative relationships between vegetation and several pollen taxa in surface soil from North China显示文摘According to the vegetation investigation and pollen analysis of surface samples sampled along a precipitation gradient of the Northeast China Transect (NECT), several pollen taxa, including Pinus, Betula, Quercus, Tilia, Acer, Ulmus, Artemisia, Chenopodiaceae, Gramineae and Cyperaceae, were chosen to make the regression and correlation analyses. The results indicated that there exists a close relationship between vegetation and pollen taxa in surface samples. The regression parameters for ten taxa in the forests in the eastern part of NECT were different from those in the steppes in the western part. Pinus, Betula, Artemisia and Chenopodiaceae, which have large slope and y-intercept terms, were over-representative taxa. Acer, Gramineae and Cyperaceae, which have small slope and y-intercept terms, were under-representative taxa. Quercus, Tilia and Ulmus whose slope terms have negative correlation with y-intercept terms were equi-representative taxa. The pollen taxa with large slope or large y-intercept | LI Yiyin, ZHANG Xinshi & ZHOU Guangsheng1. Department of Urbon and Environmental Sciences, Peking University, Beijing 100871, China 2. Laboratory of Quantitative Vegetation Ecology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China 3. School of Urban and Environmental Sciences, Northeast Normal University, Changchun 130024, China Correspondence should be addressed to Li Yiyin | 2000 | Chinese Science Bulletin2000，45，16： | 24 |
| 7 | APPLYING PPE MODEL BASED ON RAGA TO CLASSIFYAND EVALUATE SOIL GRADE显示文摘The research of soil classification and soil grade evaluation is often based on fuzzy theory. So, the traditional method has an inevitable problem about weight matrix which given by some experts, and the final result can be influenced by artificial factors. The essentials of fuzzy synthetically judge is to handle the data of high dimension. That is to reducing the dimension number. The weight matrix in fuzzy theory is corresponding to low dimension projection value of each index. But we can′t define whether the weight matrix given by experts is the best projection value or not. So, the authors apply a new technique of falling dimension named projection pursuit to soil study, through using the improved real coding based accelerating genetic algorithm to optimize the projection direction. Thus, it can transfer multi dimension data into one dimension data, through searching for the optimum projection direction to realize the soil classification and its grade evaluation. The method can avoid the artificial disturbance, and acquire preferably effect. Thus, the paper provides a new method to the research of soil classification and grade evaluation. | FU Qiang1,2, LU Tie guang2, FU Hong2(1. College of Hydraulic Power, Sichuan University, Chengdu 610065, P.R.China 2. Northeast Agricultural University, Harbin 150030, P. R. China) | 2002 | Chinese Geographical Science2002，12，2： | 19 |
| 8 | 夏季对马暖流区黑潮水与陆架水的相互作用──兼论对马暖流的起源显示文摘根据1994年8月28日至9月7日韩国“Onnuri”号海洋调查船获得的CTD资料及在调查期间投放的11个卫星跟踪漂流浮标资料,分析研究了东海东北部黑潮水的分离及其与陆架水的相互作用,进而探讨了夏季的对马暖流的形成过程。 | 郭炳火 李兴宰 李载学. Korea Ocean research & Development Institute Ansan Korea) Abstract--The separation of the Kuroshio water in the northeaster | 1998 | 海洋学报1998，20，5： | 19 |
| 9 | Spatial Variability of Soil Organic Carbon Under Maize Monoculture in the Song-Nen Plain, Northeast China显示文摘Soil organic carbon (SOC) and its relationship with landscape attributes are important for evaluating current regional, continental, and global carbon stores. Data of SOC in surface soils (0–20 cm) of four main soils, Cambisol, Arenosol, Phaeozem, and Chernozem, were collected at 451 locations in Nongan County under maize monoculture in the Song-Nen Plain, Northeast China. The spatial characteristics of soil organic carbon were studied, using geographic information systems (GIS) and geostatistics. Effects of other soil physical and chemical properties, elevation, slope, and soil type on SOC were explored. SOC concentrations followed a normal distribution, with an arithmetic mean of 14.91 g kg-1 . The experimental variogram of SOC was fitted with a spherical model. There were significant correlations between soil organic carbon and bulk density (r =-0.374**), pH (r = 0.549**), total nitrogen (r = 0.781**), extractable phosphorus (r =-0.109*), exchangeable potassium (r = 0.565**), and cation exchange capacity (r = 0.313**). Generally, lower SOC concentrations were significantly associated with high elevation (r =-0.429**). Soil organic carbon was significantly negatively correlated with slope gradient (r =-0.195**). Samples of the Cambisol statistically had the highest SOC concentrations, and samples of the Arenosol had the lowest SOC value. | WANG Zong-Ming , ZHANG Bai, SONG Kai-Shan, LIU Dian-Wei and REN Chun-Ying Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012 (China) | 2010 | Pedosphere2010，20，1： | 18 |
| 10 | SUSTAINABLE AGRICULTURE DEVELOPMENT IN SALINE-ALKALI SOIL AREA OF SONGNEN PLAIN,NORTHEAST CHINA显示文摘There is great potential for agriculture in saline-alkali soil area in Songnen Plain, Northeast China. But the sustainable crop production in this area has been restricted by a few of main factors, such as less precipitation, h igher evaporation and frequent drought, high salinity and alkalinity, high excha ngeable sodium content and poor infiltration of the soil, and insufficiency and low availability in nutrition. It is also considered that there are a few of fav orable conditions for agricultural development in this region, such as sufficien t light and heat resources, rich ground water resources, plenty of manure produc ed by livestock, and so on. At the same time, scientific management and measurem ents have been employed; rational irrigation and drainage system has been establ ished; reclamation, amendment and fertilization of soil, and suitable strategies of cropping practices have been made for the sustainable development of agricul ture. Great progress has been made during 1996-2000. | WANG Zhi-chun, LI Qu-sheng, LI Xiu-jun, SONG Chang-chun, ZHANG Guang-xin (Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012, P. R. China) | 2003 | Chinese Geographical Science2003，13，2： | 12 |
| 11 | Removal of adhesive dusts from flue gas using corona discharges with spraying water显示文摘Effective removal of adhesive and fine dusts from flue gas is very difficult. A new method of electrostatic precipitation of the corona discharges with spraying water(CDSW) was introduced. A new electrode configuration and the circulation spraying of water were employed in the method. The efficient electrostatic precipitation for adhesive and fine dusts can be accomplished without any drain water during a long operating period. The fundamental structure, discharge characteristics, mechanism of spraying and precipitation principle of the electrostatic precipitation using CDSW were described and analyzed. The V I characteristics, spraying state, supplying water quantity, influence of temperature and clean of the electrodes were researched in series experiments. The treating effects of circulating spraying using the corona plasma at the same time of electrostatic precipitation were investigated. The fundamental theories and experimental data were proposed, in order to effectively remove the adhesive dusts from flue gas using CDSW in practice. | XU De\|xuan, ZHAO Jian\|wei, DING Yun\|zheng, GE Wei\|li (Department of Environmental Science and Engineering, Northeast Normal University, Changchun 130024, China. | 2003 | Journal of Environmental Sciences2003，15，4： | 11 |
| 12 | QSAR Studies on the Toxicity of Nitrobenzenes to Population Growth of Tetrahymena Pyriformis显示文摘The IGC 50 (50% inhibitory growth concentration) values of 27 nitrobenzenes were determined for the population growth endpoint of Tetrahymena pyriformis . The toxicity order of the observed compounds was found to be as follows: dinitro compounds>mononitro compounds, dichloronitrobenzenes>monochloronitrobenzenes, meta substituted nitrobenzenes>ortho /para substituted nitrobenzenes(NT, NPh, NAnis) except for the dinitrobenzenes and nitroanilines(DNB, NAn). Quantitative structure activity relationships(QSARs) were developed with the logarithm of the reciprocal of IGC 50 [lg(IGC 50 ) -1 ] in mole liter as dependent variable and six molecular descriptors lg P , 1 X Ⅴ, I, 1K a, ∑σ - and E LUMO as independent variables. Via multiple regression analysis, one best equation was obtained: lg(IGC 50 ) -1 =3.029+0.860∑ σ -+0.341I n=27, r=0.924, r 2=0.854, s=0.265, f=70.44 , Pr> f =0.000 1 The equation was used to estimate IGC 50 for five analogues. | XU Jing bo 1** , JING Ti song 2, Pauli W. 3 and Berger S. 31. Department of Environmental Science, Northeast Normal University, Changchun 130024, P.R.China 2. College of Environment and Resource, Jilin University, Changchun 130026, P.R. China | 2002 | Chemical Research in Chinese Universities2002，18，3： | 9 |
| 13 | The single nucleotide polymorphisms of the chicken myostatin gene are associated with skeletal muscle and adipose growth显示文摘Myostatin, a new member of the TGF-β superfamily, is predominantly expressed in skeletal muscle cells and functions as a negative regulator of skeletal muscle growth in animals. Recently, we have reported three single nucleotide polymorphisms (SNPs) in the chicken myostatin gene. Herein, we investigate the association of those SNPs with the production traits in a F2 chicken line derived from Broilers crossing to Silky with the least square analysis. The results show that the BB and AA genotypes are strongly associated with abdominal fat weight (AFW), abdominal fat percentage (AFP), and birth weight (BW) (P < 0.05). Breast muscle percentage (BMP) of the AA type is higher than that of the AB type. The breast muscle weight and breast muscle percentages of F2 individuals have significant difference between CC and DD genotypes (P < 0.05). Breast muscle weight (BMW) of EF birds is higher than that of EE birds (P < 0.05). In this report, we present the first genetic evidence to show that chicken myostatin not only plays an important role in controlling skeletal muscle growth and differentiation, but also may be involved in regulation of adipose growth in chicken. | GU Zhiliang, ZHU Dahai, LI Ming, LI Hui, DENG Xuemei & WU ChangxinMolecular and Cellular Developmental Biology Laboratory, Harbin Institute of Technology, Harbin 150001, China College of Animal Science & Technology, Northeast Agricultural University, Harbin 150030, China National Laboratories for Agribiotechnology, China Agricultural University, Beijing 100094, China College of Animal Science & Technology, China Agricultural University, Beijing 100094, China Department of Life Science and Technology, Changshu Institute of Technology, Changshu 215500, China Department of Biochemistry and Molecular Biology, National Laboratory of Medical Molecular Biology, Peking Union Medical College, Beijing 100005, China | 2004 | Science China(Life Sciences)2004，47，1： | 9 |
| 14 | Present situation and tendency of saline-alkali soil in west Jilin Province显示文摘Taking west Jilin Province as an example, this paper put forward the assessment index of salinization, and based on it, the authors present the distribution characteristics of saline-alkali soil in the 1980s and the 1990s in west Jilin and analyze its physical and chemical properties in detail. The developing tendency of salinization was also inferred by comparing the saline-alkali soil of the 1980s with that of the 1990s. Finally, the natural and human factors leading to salinization are analyzed. | LIU Hui-qing, XU Jia-wei, WU Xiu-qin (Institute of Urban and Environment Science, Northeast Normal University, Changchun 130024, China) | 2001 | Journal of Geographical Sciences2001，11，3： | 9 |
| 15 | Z-Graded Lie Superalgebras with Depth One over Fields of Prime Characteristic | Yong Zheng ZHANG Department of Mathematics. Northeast Normal University. Changchun 130024. P. R. China | 2002 | Acta Mathematica Sinica,English Series2002，18，4： | 9 |
| 16 | Sonme Factors that Affect the Free Radical-scavenging Activity of Tea Extracts显示文摘1IntroductionTeahasbeenusedasdailybeverageinChinaforthousandsyears,theyears,theteacul-turewithorientalcharacteristicstherebyf... | Zhao Xinhuai ( Northeast Agricultural University, Harbin 150030 PRC) | 1999 | Journal of Northeast Agricultural University(English Edition)1999，6，1： | 9 |
| 17 | Periodicity in a “Food-limited” Population Model with Toxicants and Time Delays显示文摘Abstract With the help of a continuation theorem based on Gaines and Mawhin’s coincidence degree,westudy the global existence of positive periodic solutions of a 'food-limited' population model with toxicants andtime delays.Some new results are obtained. | Meng Fan, Ke WangDepartment of Mathematics, Key Laboratory for Vegetation Ecology of the Ministry of Education of China, Northeast Normal University, Changchun 130024, China | 2002 | Acta Mathematicae Applicatae Sinica2002，18，2： | 8 |
| 18 | VALENCE ELECTRON STRUCTURE OF HIGH PROPERTY HIGH SPEED RESISTANCE STEEL AND ITS COMPOSITION DESIGN显示文摘Theempiricalelectrontheory of solidsand molecules( EET) and theimproved TFDtheory wereapplied tocalculatethe phasestructurefactorsand interfaceconjunction factorsofcom mon alloying elementsin high speed impact resistance ( HSIR) steel. According tothese va lenceelectron structure parametersitis deduced thatthe alloying elements of high propertyHSIRsteelshould be Mn, Cr, Ni and Mo. The microscopicstructure ofthesteel with this compositionisthe mixtureof martensite, bainiteand austeniteafter quenching andlow tem peraturetempering.Itspropertiesare:σb = 1750 MPa,σ0 2 = 1460 MPa,δ5 = 12 7 % , AKV(at 40 ℃, cross direction) = 21J, which exceed the requirement of design. For the thick plateof high property HSIRsteel,itissuggestedto add alittleamountof Cu on thebasisofabovecomposition . | Z.L. Li1,2) ,C.X.Ma2) and Z.L.Liu1) 1) Department of Materials Science and Engineering,Liaoning Institute of Technology,Jinzhou 121001 ,China 2) Collage of Science, Northeast University ,Shenyang,110006 , China | 1999 | Acta Metallurgica Sinica(English Letters)1999，12，4： | 8 |
| 19 | Estimation of forest volumes by integrating Landsat TM imagery and forest inventory data显示文摘Accurate information about forest volumes is essential for forest management planning. The survey interval of the Forest Resource Inventory of China (FRIC) is too long to meet the demand for timely decision-making required for forest protection, management, and utilization. Analysis of satellite imagery provides good potential for more frequent reporting of forest parameters. In this study, we describe an application of the k-nearest neighbors (kNN) method to Landsat TM imagery for improving estimation of forest volumes. Several spectral features were tested and compared in forest volume estimations, including normalized difference vegetation index, environmental vegetation index, and the combination of the spectral features. The combined index resulted in the most accurate volume estimations. The kNN estimator and the combined index were then used in forest volume estimation. The estimation error (RMSE) of the total volume was44.2%, much lower than those for Larix forest (the RMSE was 51.7%) and those for the Korean pine and broadleaved forests (the estimation errors were over 71.7% and 88.19%,respectively). This preliminary study demonstrates the potential of forest volume estimations with remote sensing data to provide useful information for forest management if only limited ground information is available. | GU Huiyan, DAI Limin, WU Gang, XU Dong, WANG Shunzhong &WANG Hui Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China School of Forestry, Northeast Forestry University, Harbin 150040, China State Key Lab of Systems Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China Graduate University of Chinese Academy of Sciences, Beijing 100039, China | 2006 | Science China(Technological Sciences)2006，49，z1： | 8 |
| 20 | A Control Problem for Nonstationary Population Systems | WANG Hui(Department of Mathematics.Harbin Normal University,Harbin 150080)HOU Xuezhang(Deparfment of Mathematics,Northeast Normal University,Changchun 130024) | 1994 | Systems Science and Systems Engineering1994，4，1： | 7 |
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