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| 1 | Changes in plant biomass and species composition of alpine Kobresia meadows along altitudinal gradient on the Qinghai-Tibetan Plateau显示文摘Alpine Kobresia meadows are major vegetation types on the Qinghai-Tibetan Plateau. There is growing concern over their relationships among biodiversity, productivity and environments. Despite the im-portance of species composition, species richness, the type of different growth forms, and plant bio-mass structure for Kobresia meadow ecosystems, few studies have been focused on the relationship between biomass and environmental gradient in the Kobresia meadow plant communities, particularly in relation to soil moisture and edaphic gradients. We measured the plant species composition, her-baceous litter, aboveground and belowground biomass in three Kobresia meadow plant communities in Haibei Alpine Meadow Ecosystem Research Station from 2001 to 2004. Community differences in plant species composition were reflected in biomass distribution. The total biomass showed a de-crease from 13196.96±719.69 g/m2 in the sedge-dominated K. tibetica swamp to 2869.58±147.52 g/m2 in the forb and sedge dominated K. pygmaea meadow, and to 2153.08±141.95 g/m2 in the forbs and grasses dominated K. humilis along with the increase of altitude. The vertical distribution of below-ground biomass is distinct in the three meadow communities, and the belowground biomass at the depth of 0-10 cm in K. tibetica swamp meadow was significantly higher than that in K. humilis and K. pygmaea meadows (P<0.01). The herbaceous litter in K. tibetica swamp was significantly higher than those in K. pygnaeca and K. humilis meadows. The effects of plant litter are enhanced when ground water and soil moisture levels are raised. The relative importance of litter and vegetation may vary with soil water availability. In the K. tibetica swamp, total biomass was negatively correlated to species richness (P<0.05); aboveground biomass was positively correlated to soil organic matter, soil moisture, and plant cover (P<0.05); belowground biomass was positively correlated with soil moisture (P<0.05). However, in the K. pygnaeca and K. humilis meadow communities, aboveground biomass was posi-tively correlated to soil organic matter and soil total nitrogen (P<0.05). This suggests that the distribu-tion of biomass coincided with soil moisture and edaphic gradient in alpine meadows. | WANG ChangTing1,3, CAO GuangMin1, WANG QiLan1, JING ZengChun1, DING LuMing1 & LONG RuiJun2 1 Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China 2 College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730070, China 3 Graduate University of the Chinese Academy of Sciences, Beijing 100039, China | 2008 | Science China(Life Sciences)2008，51，1： | 31 |
| 2 | Climate change tendency and grassland vegetation response during the growth season in Three-River Source Region显示文摘Climate change,climate suitablity change for grassland vegetation,and grassland response to climate change during the growth season are studied systematically by using meteorological data of temperature,precipitation,and length of sunlight from 1961 to 2007,NOAA/AVHRR NDVI from 1982 to 2006,and observations of grass height,biomass,and coverage in enclosed grassland from 1994 to 2006.Two models are developed to evaluate climate change and the climatic suitability of grassland vegetation growth.Average temperature,accumulative precipitation,and length of sunlight during the growth season increased from 1961 to 2007 at rates of 0.24°C/10 yr,2.32 mm/10 yr,and 2.81 h/10 yr,respectively.The increase rates of ave-rage temperature between April and May,and between June and August are 0.17 and 0.30°C/10 yr;accumulative rainfall between April and May increased at a rate of 2.80 mm/10 yr,and accumulative rainfall between June and August decreased at a rate of 0.38 mm/10 yr;the increase rates of accumulative length of sunlight between April and May,and between June and August are 2.15 and 1.2 h/10 yr.The climatic suitability of grassland vegetation growth showed an increasing trend,and the increase rate between April and May is greater than that between June and August.Both NDVI observations from 1982 to 2006 and measurements of grass height,dry biomass,and coverage from 1994 to 2006 show that the climate change has resulted in an increase in plant productivity of the grassland in Three-River Source Region.If some protection measures are taken as soon as possible,the deteriorated grassland in Three-River Source Region can recover. | QIAN Shuan1,FU Yang2 & PAN FeiFei3 1 National Meteorological Center,Beijing 100081,China 2 Qinghai Meteorological Research Institute,Xining 810001,China 3 Department of Geography,University of North Texas,Denton,TX 76203,USA | 2010 | Science China Earth Sciences2010，53，10： | 25 |
| 3 | Characterizing CO_2 fluxes for growing and non-growing seasons in a shrub ecosystem on the Qinghai-Tibet Plateau显示文摘To assess carbon budget for shrub ecosystems on the Qinghai-Tibet Plateau, CO2flux was measured with an open-path eddy covariance system for an alpine shrub ecosystem during growing and non-growing seasons. CO2 flux dynamics was distinct between the two seasons. During the growing season from May to September, the ecosystem exhibited net CO2uptake from 08:00 to 19:00 (Beijing Standard Time), but net CO2 emission from 19:00 to 08:00.Maximum CO2 uptake appeared around 12:00 with values of 0.71, 1.19, 1.46 and 0.67 g CO2m-2 h-1 for June, July, August and September, respectively. Diurnal fluctuation of CO2 flux showed higher correlation with photosynthetic photon flux density than temperature. The maximum net CO2 influx occurred in August with a value of 247 g CO2 m-2. The total CO2 uptake by the ecosystem was up to 583 g CO2 m-2 for the growing season. During the non-growing season from January to April and from October to December, CO2 flux showed small fluctuation with the largest net CO2 efflux of 0.30 g CO2 m-2 h-1 in April. The diurnal CO2 flux was close to zero during most time of the day, but showed a small net CO2 efflux from 11:00 to 18:00. Diurnal CO2 flux, is significantly correlated to diurnal temperature in the non-growing season. The maximum monthly net CO2 efflux appeared in April, with a value of 105 g CO2 m-2. The total net CO2 efflux for the whole non-growing season was 356 g CO2 m-2. | XU Shixiao, ZHAO Xinquan, FU Yuling, ZHAO Liang, LI Yingnian, CAO Guangmin, GU Song, WANG Qinxue & DU Mingyuan Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China Graduate School of the Chinese Academy of Sciences, Beijing 100136, China National Institute for Environmental Studies, Tsukuba 305-8569, Japan National Institute for Agro-Environmental Science, Tsukuba 305-8604, Japan | 2005 | Science China Earth Sciences2005，48，z1： | 12 |
| 4 | Soil organic carbon storage and soil CO_2 flux in the alpine meadow ecosystem显示文摘High-resolution sampling,measurements of organic carbon contents and 14C signatures of selected four soil profiles in the Haibei Station situated on the northeast Tibetan Plateau,and application of 14C tracing technology were conducted in an attempt to investigate the turnover times of soil organic car-bon and the soil-CO2 flux in the alpine meadow ecosystem. The results show that the organic carbon stored in the soils varies from 22.12×104 kg C hm-2 to 30.75×104 kg C hm-2 in the alpine meadow eco-systems,with an average of 26.86×104 kg C hm-2. Turnover times of organic carbon pools increase with depth from 45 a to 73 a in the surface soil horizon to hundreds of years or millennia or even longer at the deep soil horizons in the alpine meadow ecosystems. The soil-CO2 flux ranges from 103.24 g C m-2 a-1 to 254.93 gC m-2 a-1,with an average of 191.23 g C m-2 a-1. The CO2 efflux produced from microbial decomposition of organic matter varies from 73.3 g C m-2 a-1 to 181 g C m-2 a-1. More than 30% of total soil organic carbon resides in the active carbon pool and 72.8%―81.23% of total CO2 emitted from or-ganic matter decomposition results from the topsoil horizon (from 0 cm to 10 cm) for the Kobresia meadow. Responding to global warming,the storage,volume of flow and fate of the soil organic carbon in the alpine meadow ecosystem of the Tibetan Plateau will be changed,which needs further research. | TAO Zhen1,2,SHEN ChengDe2,GAO QuanZhou1,SUN YanMin2,YI WeiXi2 & LI YingNian3 1 School of Geography and Planning,Sun Yat-sen University,Guangzhou 510275,China 2 Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China 3 Northwest Plateau Institute of Biology,Chinese Academy of Sciences,Xining 810001,China | 2007 | Science China Earth Sciences2007，50，7： | 12 |
| 5 | Study on the changes of water cycle and its impacts in the source region of the Yellow River显示文摘The water cycle in the source region of the Yellow River underwent great changes in the 1990s. The major features of the changes are as follows: the gauged runoff declined significantly while the precipitation increased slightly, and the runoff process was more concentrated on the flood season. Water balance analyses indicate that the pondage was kept in the status of negative equilibrium, causing eco-environmental problems. The runoff decrement is due to evaporation increment in this region. Studies show that the runoff process in this region is closely related to that of the other hydrological stations in the upper reaches. When the runoff declines in the source regions, the amount of water also declines in the whole upper reaches of the Yellow River, affecting the balance between water demand and supply. Meanwhile changes will take place in the water cycle of the river course system when the eco-environment deteriorates. The trend of water cycle change in the source region is that the runoff will keep declining with the increment of evaporation caused by temperature rise in the northwest of China in the 21st century. But the hydraulic engineering in the source region will help to mitigate the deterioration of local eco-environment system, though the impacts to the lower reaches of this project may not be the case. | ZHANG Shifeng1, JIA Shaofeng1, LIU Changming1, CAO Wenbing2, HAO Fanghua3, LIU Jiuyu4 & YAN Huayun5 1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China 2. China University of Geosciences, Beijing 100083, China 3. Beijing Normal University, Beijing 100875, China 4. Bureau of Hydrology of Yellow River Conservancy Commission, Zhengzhou 450003, China 5. Bureau of Hydrology and Water Resource Investigation of Qinghai Province, Xining 810001, China | 2004 | Science China(Technological Sciences)2004，47，z1： | 10 |
| 6 | 盐湖化学与化工现状及发展对策显示文摘盐湖化学与化工现状及发展对策附件盐湖化学与化工现状及发展对策专题组编者按:原中国科学院化学学部第20次学部常委会决定进行(盐湖化学与化工现状及发展对策)的专题调研.为此,成立了以学部委员倪嘉缵先生为专题组长的调研组.经全组同志努力,完成了调研报告,于... | Group Monographic Study(Qinghai Institute of Salt Lakes, Academia Sinica, Xining 810001) | 1994 | 盐湖研究1994，2，4： | 7 |
| 7 | Grassland Degradation and Its Control in Region AroundQinghai Lake显示文摘A quite severe degradation was found in all seven types of grasslands in the study area involving 12counties of the northwestern Qinghai Province. The slightly, moderately and severely degraded grasslandsoccupied 49.7%, 32.0% and 18.3% of the area respectively. The major factors resulting in the degradationwere overgrazing, the damages from mice and grasshopper and blown sands, and improper use of grasslands.The measures to deal with these problems should be: 1) to make livestock development in accordancewith grassland carrying capacity for animals; 2) to build more artificial grasslands with a stable and highergraas yield; 3) to put more widely the rotation grazing system into practice; 4) to clear up the poisonousgrass species; and 5) to adopt more effective measures to deal with the damages to grasslands by mice andgrasshoppers. | JIANG JIANJUN NI SHAOXIANG GONG AIQI WANG WEIJUN ZHA YONG WANG JIECHENG F. VOSS(l College of Geographic Science, Nanjing Normal University, Nanjing 210097 (China))(2 General Grassland Station of Qinghai Province, Xining 810001 (China))(3 Institute of Ceog | 1999 | Pedosphere1999，9，4： | 4 |
| 8 | Landscape ecology of the region around Qinghai Lake,Qinghai Province of China based on romote sensing显示文摘1IntroductionAsaveryhighandcoldregion,theQingzangPlateau(TibetQinghaiPlateau)isverypeculiarinecologicallandscapefeature.Alth... | Ni Shao xiang, Jiang Jian jun, Wang Jie cheng College of Geographic Science, Nanjing Normal University, Nanjing 210097, China Gong Ai qi, Wang Wei jun General Grassland Station of Qinghai Province, Xining 810001, China F.Voss Institute of | 1999 | Journal of Environmental Sciences1999，11，2： | 3 |
| 9 | Analysis on the Characteristics of Climate Changes in the Surrounding Area of Qinghai Lake显示文摘[Objective] The aim was to study the characteristics of climate changes in the surrounding area of Qinghai Lake.[Method] Based on the data of temperature,precipitation and sunshine hours from 5 representative meteorological stations in the surrounding area of Qinghai Lake during 1961-2007,the annual,seasonal and decadal variation of meteorological factors were analyzed.[Result] In recent 47 years,temperature showed obvious increase trend in the surrounding area of Qinghai Lake,and annual average temperature increased with the climatic tendency of ≥0.30 ℃/10 a,while annual average minimum temperature increased more significant than annual average temperature and annual average maximum temperature;annual mean precipitation decreased with the climatic tendency of-3.67 mm/10 a,and precipitation in spring and autumn reduced obviously,while precipitation in summer and winter increased slightly;annual sunshine hours also showed decrease trend with the climatic tendency of-1.79 h/10 a,while sunshine hours decreased most obviously in summer,and next came winter,while there was no obvious decrease in spring and autumn.[Conclusion] The study could provide theoretical references for the effective prevention of meteorological disasters in the surrounding area of Qinghai Lake. | HE Yong-qing1,LI Feng-xia2 1.Anhui Agricultural University,Hefei 230036,China 2.Qinghai Meteorological Science Institute,Xining 810001,China | 2011 | Meteorological and Environmental Research2011，2，3： | 2 |
| 10 | Two New Xanthone Glycosides from Swertia Tetraptera显示文摘Two new xanthone glycosides, tetraswerosides A and B, were isolated from the whole plant of Swertia tetraptera. Their structures were determined as 3-O-■-D-glucopyranosyl-1-hydroxy-4,7- dimethoxyxanthone and 3-O-[■-D- xylopyranosyl -(1→6)-■-D-glucopyranosyl]-1-hydroxy-4,7- dimethoxyxanthone by spectroscopic methods. | Zhi Xin LIAO1,2, Yu Lin LI2, Ming Kui WANG3, Li Sheng DING3*,Yao Zu CHEN1 1 State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000 2Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining 810001 3Chengdu | 2001 | Chinese Chemical Letters2001，12，5： | 2 |
| 11 | Characteristics and Zonation of the Cenozoic Volcanic Rocks on the Qinghai-Tibet Plateau显示文摘 | YANG Jingsui XU Zhiqin BAI Wenji (Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China) ZHAO Rough (Geological Survey of Qinghai Province Xining 810001 China) | 1997 | Continental Dynamics1997，，01： | 1 |
| 12 | STUDY ON THE POLYMER ELECTROLYTES OF(PMA/PEG)n:LiClO_4 SYSTEM显示文摘Lithium ion conducting polymer electrolyteswere prepared by blending poly(methyl acrylate)[PMA]with poly(ethylene glycol)[PEG]and coordinating themwith LiC104.The highest conductivity was above1×10-6S/cm at room temperature. | Yan LIU (Department of Chemistry,Qinghai Medical Colleng,xining,810001) Zeng Liang CAI Chang Ming FANG Yi ZHANG Hai Chun GAO (Qinghai Institute of Salt Lakes,Chinese Academy of Science,Xining,810008) | 1991 | Chinese Chemical Letters1991，2，9： | 0 |
| 13 | 急进高海拔地区大鼠肾素-血管紧张素-醛固酮系统的功能对比性研究显示文摘为探讨急进高海拔地区机体对低压、低氧环境的适应机制,将海拔10m处的平原大鼠快速带至海拔2261m再带入海拔3800m处,用放射免疫法测定大鼠血浆肾素、血管紧张素Ⅱ和醛固酮的浓度。结果发现:(1)随海拔高度递增,大鼠肾素及血管紧张素Ⅱ含量呈上升趋势,醛固酮浓度逐渐下降,统计学处理有显著性差异;(2)急进高海拔地区,醛固酮对血管紧张素Ⅱ的反应钝化,使醛固酮处于低水平状态。上述结果提示:急进高海拔地区,机体对水、电解质的调节会发生变化。 | Zhang Hui Li.Qinghai Medical College(810001) | 1999 | 中国公共卫生1999，15，2： | 0 |
| 14 | Study of Equidistance Feature of Earthquake Distribution and Future Earthquake Tendency in Northeastern of Qinghai-Xizang Plateau显示文摘We propose a new method for the interpretation of equidistant feature of earthquake distribution mechanism. Using plastic mechanics and the geodynamical principle and previous research result, we considered that the genesis mechanism of earthquake equidistance results from interaction of glide nets of the middle and lower crust with the upper crust. Their common force sources come from the united interaction of the circum-Pacific and Eurasian seismic zones. Applying the strong earthquake equidistant distribution characteristics, the tendency of future strong earthquake location has been forecasted. | Zhang Xiaodong, Zhang Yaling, and Ma WenjingSeismological Bureau of Qinghai Province, Xining 810001, China | 1998 | Earthquake Research in China1998，12，3： | 0 |
| 15 | Heat shock response and mammal adaptation to high elevation(hypoxia)显示文摘The mammal's high elevation(hypoxia) adaptation was studied by using the immu-nological and the molecular biological methods to understand the significance of Hsp(hypoxia) ad-aptation in the organic high elevation,through the mammal heat shock response.(1) From high ele-vation to low elevation(natural hypoxia) :Western blot and conventional RT-PCR and real-time fluo-rescence quota PCR were adopted.Expression difference of heat shock protein of 70(Hsp70) and natural expression of brain tissue of Hsp70 gene was determined in the cardiac muscle tissue among the different elevation mammals(yak) .(2) From low elevation to high elevation(hypoxia induction) :The mammals(domestic rabbits) from the low elevation were sent directly to the areas with different high elevations like 2300,3300 and 5000 m above sea level to be raised for a period of 3 weeks be-fore being slaughtered and the genetic inductive expression of the brain tissue of Hsp70 was deter-mined with RT-PCR.The result indicated that all of the mammals at different elevations possessed their heat shock response gene.Hsp70 of the high elevation mammal rose abruptly under stress and might be induced to come into being by high elevation(hypoxia) .The speedy synthesis of Hsp70 in the process of heat shock response is suitable to maintain the cells' normal physiological functions under stress.The Hsp70 has its threshold value.The altitude of 5000 m above sea level is the best condition for the heat shock response,and it starts to reduce when the altitude is over 6000 m above sea level.The Hsp70 production quantity and the cell hypoxia bearing capacity have their direct ratio. | WANG Xiaolin1,2,3,XU Cunshuan4,WANG Xiujie5,WANG Dongjie6,WANG Qingshang7 & ZHANG Baochen11.Northwest Plateau Biological Research Institute,Chinese Academy of Sciences,Xining 810001,China 2.Graduate School of the Chinese Academy of Sciences,Beijing 100039,China 3.Affiliated Hospital of Medical College of Qinghai University,Xining 810001,China 4.Key Laboratory of Ministry of Science and Technology of China in Henan Normal University,Xinxiang 453000,China 5.Key Laboratory of China Ministry of Education in Oncology Research Institute of Western Hospital of Sichuan University,Chengdu 610041,China 6.Guangzhou Meizheng Pharmaceutical Industry & Key Laboratory of Ministry of Health of China,Guangzhou 510075,China 7.Rubber Research Institute,China Tropical Agricultural Academy of Sciences,Haikou 571737,China | 2006 | Science China(Life Sciences)2006，49，5： | 0 |
| 16 | Industrial Restructuring and the Selection of Pillar Industries in Qinghai Province, China显示文摘Based on the data from the Qinghai Statistical Yearbook 2009, the evolution course of industrial structure and the developmental status of pillar industries is analyzed. The pillar industries in Qinghai Province are analyzed and revaluated from four aspects, which cover demand and income elasticity, location quotient, contribution rate and interrelationship between industries. Through analyzing the problems and causes of the industrial structure of Qinghai Province, we know that the output structure of the three main industries has seriously departed from the employment structure; the pillar industries mainly concentrated on the fields of resource exploitation and primary processing; the interrelationship between the industries is low; and the development between the light and heavy industries are imbalanced. With the globalization and the further implementation of national preferential policies on western development, Qinghai Province follows the following principles in the restructuring of industrial structure in order to carry out the scientific thought of development and the 'Ecological province' strategy. Firstly, the restructuring of industrial structure should be guided by market and scientific and technological progress. Secondly, it should fully display the regional advantages. Thirdly, it should attach importance to the developmental status and prospect of relevant accessory industries. Fourthly, the restructuring should be helpful to the labor transfer and reemployment of rural surplus labor forces. Suggestions on the selection of pillar industries and optimization of industrial structure are put forward. Qinghai Province should accelerate the restructuring of industrial structure, strengthen the support on pillar industries and lay stress on the introduction of the capitals, technologies and talents. | XU Shang-rong1, CHEN Xiao-ling2, WANG Qi2, WANG Jing-sheng1 1. Continuing Education School , Qinghai University, Xining 810001, China 2. Qinghai University, Xining 810016, China | 2010 | Asian Agricultural Research2010，2，9： | 0 |
| 17 | Analysis of the Process of Extreme Heavy Rainfall in the Cold Lake in Qinghai显示文摘[Objective] The aim was to analyze the process and reason of the extreme heavy rainfall on June 15,2011 in Cold Lake in Qinghai.[Method] The weather,physical field and satellite of one extreme heavy rain in the cold lake in Qinghai were expounded.[Result] The formation of the loop 'crooked neck' of high pressure,which on the one hand posed a typical situation in the circulation of heavy precipitation in Qinghai,and on the other hand,formed the southwest,southeast of the two water vapor transport in air,in addition to the small groove from the trough of Lake Balk hash and the split vortex plateau,resulted into the extreme heavy rainfall in Cold Lake.The presence of thermal low pressure 700 hPa was conducive to the accumulation of low energy and low-level moisture transport from the Qinghai region to the south of Qaidam Basin.[Conclusion] The resulting process was mainly due to heavy rain in the lower troposphere convergence,high-level divergence,high humidity areas and a strong vertical upward motion. | SHI Xiu-yun1,2,LI Sheng-chen3 1.Golmud Meteorological Bureau in Qinghai,Golmud 816000,China 2.Key Laboratory of Disaster Prevention and Mitigation in Qinghai,Xining 810001,China 3.Qinghai Meteorological Observatory,Xining 810001,China | 2011 | Meteorological and Environmental Research2011，2，10： | 0 |
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