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| 1 | The biomass and aboveground net primary productivity of Schima superba-Castanopsis carlesii forests in east China显示文摘The biomass and productivity of Schima superba-Castanopsis carlesii forests in Tiantong,Zhejiang Province,were determined using overlapping quadrants and stem analyses.The total community biomass was(225.3±30.1) t hm-2,of which the aboveground parts accounted for 72.0% and the underground parts accounted for 28.0%.About 87.2% of biomass existed in the tree layer.The resprouting biomass was small,of which over 95.0% occurred in the shrub layer.The productivity of the aboveground parts of the community was(386.8±98.9) g m-2a-1,in which more than 96.0% was present at the tree level.The trunk's contribution to productivity was the greatest,while that of leaves was the smallest.In China,the community biomass of subtropical evergreen broadleaved forests differs significantly with the age of the forest.The community biomass of the 52-year-old S.superba-C.carlesii forests in this study was lower than the average biomass of subtropical evergreen broadleaved forests in China,and was lower than the biomass of other subtropical evergreen broadleaved forests elsewhere in the world.Moreover,its productivity was lower than the model estimate,indicating that without disturbance,this community has great developmental potential in terms of community biomass and productivity. | YANG TongHui1,2,SONG Kun1,DA LiangJun1*,LI XiuPeng3 & WU JianPing1 1School of Resources and Environment Science,East China Normal University,Shanghai 200062,China 2Ningbo Academy of Agricultural Science,Ningbo 315040,China 3Ningbo Technology Extension Center for Forestry and Specialty Forest Products,Ningbo 315012,China | 2010 | Science China(Life Sciences)2010，53，7： | 23 |
| 2 | 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 |
| 3 | Rainfall interception by sand-stabilizing shrubs related to crown structure显示文摘On the edge of the Tengger Desert in northern China,revegetation has changed the landscape from moving dunes to stabilized dunes covered by shrubs,which further modifies the pattern of rainfall redistribution.To study rainfall interception loss by shrubs and its relationship to rainfall properties and crown structure,throughfalls passing through crowns of Artemisia ordosica Krash.and Caragana korshinskii Kom.were measured using nine PVC cups under the canopy of each of the two shrubs during 73 rain events over a three-year period,with total rainfall of 260.9 mm.Interception losses of gross rainfall by A.ordosica and C.korshinskii account for 15% and 27% of the total on a crown area basis,and 6% and 11% on a ground area basis,respectively.Individual throughfall(T) and interception(I) were significantly related to rainfall amount(Pg),duration(D),and intensity(R).Ratios of throughfall to rainfall(T/Pg) and interception to rainfall(I/Pg) were not only significantly related to Pg,D,and R,but also to shrub species,and interactions of species with crown volume(CV) and leaf area index(LAI).Under most rain events,interceptions by C.korshinskii with greater CV and LAI were significantly higher than those by A.ordosica,and more rainfall interception occurred at locations closer to the stems of the two shrubs.For C.korshinskii,I/Pg had a significant positive linear relation with CV and LAI,while T/Pg had a significant negative linear relation with them.CV has a greater influence on T/Pg and I/Pg than does LAI.Using a regression method,canopy water storage capacities are estimated to be 0.52 and 0.68 mm,and free throughfall coefficient to be 0.62 and 0.47 for A.ordosica and C.korshinskii,respectively. | ZhiShan Zhang 1*,XinRong Li 1,XueJun Dong 2,XiaoHong Jia 1,MingZhu He 1,HuiJuan Tan 1 1.Shapotou Desert Research and Experiment Station,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou,Gansu 730000,China.2.Central Grasslands Research Extension Center,North Dakota State University,Streeter,ND 58483,USA. | 2009 | Research in Cold and Arid Regions2009，1，2： | 9 |
| 4 | Introduction to Urban and Community Forestry in the United States of America: History, Accomplishments, Issues and Trends显示文摘The urban and community forestry movement in the United States has matured over the last 20 years from managing street trees, to understanding the benefits of trees in urban ecosystems, and now to managing urban green infrastructure. This paper introduced the history, development, and major accomplishments of the urban and community forestry movement, highlighted the economic, ecological, environmental, and social values of forests and trees to communities, and discussed issues and trends of the urban and community forestry program in the United States. | Qi Yadong1* Zhang Zhiqiang2 1Urban Forestry Program, Southern University Agricultural Research and Extension Center, Southern University, Baton Rouge 70813, USA 2College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, P. R. China | 2003 | Forestry Studies in China2003，5，4： | 3 |
| 5 | 细鳞斜颌鲴的驯养显示文摘密鲴亚科鱼类以它特有的食性,较高的群体生产力、个体生长较为迅速、适应性强和肉味鲜美等特点,而成为深受群众欢迎的中型经济鱼类。我国不少地区已将密鲴亚科鱼类作为养殖对象,但目前我区仍把它们视为“野鱼”,听其“自生自繁”。为了充分发掘水体生产潜力,提高鱼产量,研究密鲴的驯养,是很有价值的。 | Fisheries Technique Extension Station of Hwang-kan District,Hupei Province | 1976 | 水生生物学集刊1976，6，1： | 3 |
| 6 | Long-term subcutaneous pasireotide in an open-ended, multicenter, 显示文摘 | Petersenn S Farrall A J efficacy and safety of acromegaly: results from Phase II extension study | 2013 | Pituitary2013，30，： | 1 |
| 7 | elegans显示文摘 | Melendez A Talloczy Z Seaman M :Autophagy Genes Are Essential for Dauer Development and Life-Span Extension in C | 2003 | Science2003，301，： | 1 |
| 8 | 茶秆竹埋鞭造林技术的推广应用显示文摘怀集县东南部是茶秆竹的中心产区,主要分布在坳仔、大坑山、怀城等地。埋鞭造林5年近万亩。埋鞭造林成活率远高于挖兜造林成活率,埋鞭造林技术要点:选好造林地、种鞭1-2年生,正种茶秆竹,种鞭随起随种,斜插或全埋造林,头两年每年抚育2次,第三年抚育1次,加强养抚管理。 | The Tuyouzhai Forestry Branch of Huiji County Forestry Technical Extension Station,Guangdong Province(526400) | 1998 | 竹子研究汇刊1998，17，1： | 1 |
| 9 | Study on Cotton Nitrogen Diagnosis and Topdressing Recommendation in North Xinjiang,China显示文摘Field experiments were conducted to study cotton nitrogen diagnosis and topdressing recommen-dation by measuring cotton tissue NO-3 concentration with Reflectoquant . Results showed that the order ofNO-3 concentration in different cotton plant tissues is petiole > stem > leaf, and upper parts> lower parts.There was significant change in each growth period, which was, NO-3 concentration in budding-blooming peri-od was the highest whereas it was the lowest in full blooming period. NO-3 concentration in the 4th expandingpetiole is relatively stable and can sensitively indicate cotton nitrogen state so it was chosen as diagnosis tissue.NO-3 content in budding-blooming period was significantly correlated with seed-cotton yield so it was chosen asdiagnosis period. Primary cotton's nitrogen diagnosis index and amount of topdressing was formulated by re-gression of NO-3 concentration against seed-cotton yield. It was not only rapid and accurate but also time-savingand flexible by using Reflectoquant to diagnose cotton nitrogen states and make side-dressing recommenda-tion, so it is an agricultural technique with promising prospect. | WEI Chang-zhou, ZHANG Fu-suo, ZHU He-ming, HOU Zhen-an, GUO Guan-shan and BAO Bai-yang(Research Center of Xinjiang Crop High-Yield, Shihezi University, Shihezi 832000, P. R. China Collegeof Resources and Environment, China Agricultural University , Beijing 100094 , P. R. China AgricultureExtension Center, Fangcaohu Farm , Xinjiang Production and Construction Corps , Changji 831100,P. R. China Agriculture Extension Center , Xinhu Farm , Xinjiang Productionand Construction Corps , Changji 831100 , P. R. China) | 2002 | Agricultural Sciences in China2002，1，12： | 1 |
| 10 | Hypoparathy- intracerebral calcification in pa- tients with beta-thalassemia major显示文摘 | Karimi M Habibzadeh roidism with extensive F De Sanctis V | 2003 | Journal of Pediat- ric Endocrinology & Metabolism2003，16，6： | 1 |
| 11 | Pigno MA, Funk JJ显示文摘 | | 2001 | J Prosthet Dent2001，85，4： | 1 |
| 12 | 乡村农技推广是加速农业科技进步的关键──农业部1995年百县蹲点调查专题报告显示文摘 | $$$$The authors of this article analyzed the present situation of agricultural technical extension in countryside and put forward some problems and suggestions about agricultural technical extension in countryside. | 1996 | 农业科技管理1996，，01： | 1 |
| 13 | 乡村农技推广是加速农业科技进步的关键──农业部1995年百县蹲点调查专题报告显示文摘 | $$$$The authors of this article analyzed the present situation of agricultural technical extension in countryside and put forward some problems and suggestions about agricultural technical extension in countryside. | 1996 | 农业科技管理1996，，01： | 1 |
| 14 | Characteristics of Salt Affected Soil and Its Amelioration by Trees显示文摘Salt-affected soils extensively distribute on the earth.Although the causes are various,generally speaking salinization occurrence results from the accumulation of free salts to an extent that causes degradation of vegetation and soils.Besides,irrational human practices have increased soil salinity by allowing excess recharging of groundwater to change the natural balance of the water cycle in the landscape. This reduces the suitability to plant growth and increases the potential for other forms of land ... | ZHANG Jianfeng~1 ZHANG Deshun~(2**) FAN Baomin~3 SHAN Qihua~1 SHEN Liming~4 1.Institute of Subtropical Forestry,Chinese Academy of Forestry,Fuyang 311400,P.R.China 2.College of Architecture and Urban Planning,Tongji University,Shanghai 200092,P.R.China 3.Research Institute of Forestry Information and Policy,Chinese Academy of Forestry,Beijing 100090,P.R.China 4.Forestry Technology Extension Station,Yuyao 315400,P.R.China | 2009 | Chinese Forestry Science and Technology2009，8，1： | 1 |
| 15 | elegans显示文摘 | Melendez A Talloczy Z Seaman M et aL Autophagy genes areessential for dauer development and life-span extension in C | 2003 | Science2003，301，5638： | 1 |
| 16 | ETDRS report number 10显示文摘 | Early Treatment Diabetic Retinopathy Study Research Group Grading diabetic retinopathy from stereoscopic color fundus photographs-an extension of the modified Airlie House classification | | 0，，5： | 1 |
| 17 | User acceptance of computer technology: A comparison of two theoretical models显示文摘 | A theoretic extension and empirical test an integration of two theoretical models Davis F D Bagozzi R P Warshaw P R | 1989 | Management Science1989，35，8： | 1 |
| 18 | 264/AVC FRExt for high resolution video coding显示文摘 | Chenwei Deng Weisi Lin:Performance analysis parameter selection and extensions to H | 2011 | Journal of visual communication&image representation2011，22，8： | 1 |
| 19 | 2000-2004 显示文摘 | Centers for Disease Control and Prevention (CDC)Emergence of Mycobacterium tuberculosis with extensive resistens to secondline drugs-worldwide | 2006 | MMWR2006，55，： | 1 |
| 20 | Person-organization value congruence: no support for individual difference as a moderating influence 显示文摘 | validation and extension of a satisfaction and productivity Management Journal 2008 Posner B Z | 1992 | Human Relations1992，45，4： | 1 |
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