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Climate controls on dust storm occurrence in Maowusu Desert, Inner Mongolia, North china

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Journal of Environmental Sciences 2001年第1期13卷 14-21页

作者： HUANG Fu xiang, GAO Qiong (laboratory of quantitative {2. {3., institute of botany, Chinese Academy of Sciences, beijing 100093. china. E mail: hfx112.@***) laboratory of quantitative {2. {3. Institute of Botany Chinese Academy of Sciences Beijing 100093 China. hfx1121@***

Dust storms occurring in arid and semi-arid regions play a main role in the evolution of landscapes. Climate is generally regarded to be important factors influencing the occurrence of dust storm, however, the way of climate controlling dust storms had been poorly understood. In this paper, we present the Eω Index model to describe the relationship between climate variables and dust storm frequency using the available meteorological data from three meteorological stations in Maowusu Desert. This index model explains 83.6%, 69.5% and 65.09% of the variance of dust storm frequency in three regions from the north to the south, respectively and this difference is probably caused by the difference of the human disturbance. The Eω Index model is an effective predictor of dust storm frequency and provides us a quite good understanding on the occurrence of dust storms in Maowusu Desert.

关键词： Arid regions Dust Meteorology

Distribution of C_4 plants along the Northeast china transect and its correlation to the environmental factors

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Chinese Science Bulletin 1999年第14期44卷 1316-1320页

作者： TANG HaipingOpen Research laboratory of Environmental Changes and Natural Disaster of the Ministry of National Education, beijing Normal University , beijing 100875, laboratory of quantitative vegetation ecology , institute of botany , Chinese Academy of Sciences , beijing 100093. china Open Research laboratory of Environmental Changes and Natural Disaster of the Ministry of National Education Beijing Normal University Beijing laboratory of quantitative {2. {3. Institute of Botany Chinese Academy of Sciences Beijing China

The distribution of C4 plants and the C4/C3.ratio along Northeast china transect （NECT） have been studied. A model to quantify their relation with environmental factors has been set up. The ratio of the number of C4... 详细信息

The distribution of C4 plants and the C4/C3./sub> ratio along Northeast china transect （NECT） have been studied. A model to quantify their relation with environmental factors has been set up. The ratio of the number of C4 plants to that of C3./sub> plants along NECT shows two low and two high trends from east to west, and their distribution is mainly decided by annual average temperature and precipitation.

关键词： Northeast china transect (NECT) distribution of C4 plants the C4/C3 ratio stepwise regression analysis.

Value of ecosystem services in china

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Chinese Science Bulletin 2000年第10期45卷 870-876页

作者： CHEN Zhongxin & ZHANG Xinshilaboratory of quantitative {2. {3., institute of botany, Chinese Academy of Sciences, beijing 100093. china Current address: institute of Natural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, beijing 100081, china laboratory of quantitative {2. {3. Institute of Botany Chinese Academy of Sciences Beijing China

The function and services are the important components of the life-support system in theplanet, as well as the basic elements for sustainable development of environment and society. It is a must to evaluate it for incorporating it with the social-economic system. It is also an important approach to draw the public attention on the environmental and ecosystem conservation. In this study, the ecosystem function and services in china were estimated by employing the classification and economic parameters from Costanza et al. The type and area of terrestrial ecosystems were extracted from vegetation Map of china (1:4 000 000), and then the distribution map of ecosystem services of china was drawn. According to our calculation, the total value of ecosystem services in china is 77 83..48×108 RMB yuan per annum. The value for terrestrial ecosystem is 56 098.46×108 yuan per annum, and that for marine ecosystem is 2. 73..02.108 yuan per annum. The value of ecosystem services in china is 1.73.times bigger

关键词： ecosystem function service.

quantitative relationships between vegetation and several pollen taxa in surface soil from North {2.

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Chinese Science Bulletin 2000年第16期45卷 1519-1523页

作者： LI Yiyin, ZHANG Xinshi & ZHOU Guangsheng1. Department of Urbon and Environmental Sciences, Peking University, beijing 100871, china {2.,{3., Chinese Academy of Sciences, beijing 100093. china 3. School of Urban and Environmental Sciences, Northeast Normal University, Changchun 13.02., china Correspondence should be addressed to Li Yiyin Department of Urbon and Environmental Sciences Peking University Beijing China School of Urban and Environmental Sciences Northeast Normal University Changchun China laboratory of quantitative {2. {3. Institute of Botany Chinese Academy of Sciences Beijing China

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

关键词： pollen taxa in surface soil vegetation regression parameters (slope term and y-intercept term) representation Northeast china Transect (NECT).

Terrestrial transect study on driving mechanism of vegetation changes

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Science china Earth Sciences 2008年第7期51卷 984-991页

作者： ZHANG YuJin1,2.& ZHOU GuangSheng1 1 State Key laboratory of vegetation and Environmental Change,{2., Chinese Academy of Sciences,{3. 2.Graduate University of Chinese Academy of Sciences, beijing 100049, china 1. State Key laboratory of vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing 100093 China 2. Graduate University of Chinese Academy of Sciences Beijing 100049 China

In terms of Chinese climate-vegetation model based on the classification of plant functional types, to- gether with climatic data from 1951 to 1980 and two future climatic scenarios (SRES-A2.and SRES-B2. in {3. from the highest and the lowest emission scenarios of greenhouse gases, the distribution patterns of vegetation types and their changes along the Northeast {3. Transect (NECT) and the North-South Transect of Eastern {3. (NSTEC) were simulated in order to understand the driving mechanisms of vegetation changes under climatic change. The results indicated that the vegetation distribution patterns would change significantly under future climate, and the major factors driving the vegetation changes were water and heat. However, the responses of various vegetation types to the changes in water and heat factors were obviously different. The vegetation changes were more sensi- tive to heat factors than to water factors. Thus, in the future climate warming will significantly affect vegetation distribution patterns.

关键词： driving mechanism vegetation terrestrial transect climatic change plant functional types

Study on climate-vegetation interaction in china

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Journal of Environmental Sciences 1993年第2期5卷 130-149页

作者： Zhang Xinshi (Chang Hsinshi) Yang Diananlaboratory of quantitative {2. {3., institute of botany, Chinese Academy ofSciences, beijing 100044, china Lab. of quantitative vegetation {2. Inst. of Botany Chinese Academy of Sciences Beijing 100044 China China

The climate-vegetation interaction of china is mainly controlled by the atmospheric circulations and topographic characteristics. The distribution and NPP of vegetation zones show a close relationship with a series of climatological indexes, such as annual mean temperature, precipitation, various thermal indexes, and potential evapotranspiration rates. The multivariate analysis (DCA) for climate and vegetation, zones in china provides quantitative environmental interpretation for two significant ecological gradients. The first gradient is mainly a thermal gradient, it can be displayed by latitude, altitude, biotemperature, and annual mean temperature. The second gradient is basically a moisture gradient, it correlated highly with longitude and potential evaportranspiration. The quantitative interaction or statistical models between vegetation zones and climato-geographical indexes can provide a fundamental scenario and comparative parameters for the study on climate and vegetation changes in china.

关键词： climate-vegetation interaction ecological gradient china.

Carbon Storage and Vertical Distribution in Three Shrubland Communities in Gurbantünggüt Desert,Uygur AutonomousRegion of Xinjiang,Northwest china

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Chinese Geographical Science 2012年第5期22卷 541-549页

作者： GONG Yanming 1 ,HU Yukun 1 ,FANG Fei 1 ,LIU Yanyan 1 ,LI Kaihui 1 ,ZHANG Guangming 2.(1.Key laboratory of Biogeography and Bioresource in Arid Land,Xinjiang institute of {2. and Geography,Chinese Academy of Sciences,Urumqi 83.011,{3. 2.State Key laboratory of vegetation and Environmental Change, institute of botany,Chinese Academy of Sciences,beijing 100093.{3.) 1. Key laboratory of Biogeography and Bioresource in Arid Land Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China 2. State Key laboratory of vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing 100093 China

This study was carried out in the Gurbantünggüt Desert,Uygur Autonomous Region of Xinjiang,Northwest china in August,*** quantify the storage,contribution and vertical distribution patterns of plant biomass carbon (PBC)and soil organic carbon(SOC)in the study area,we investigated the carbon concentrations and its vertical distribution in three different desert shrubland communities dominated by Reaumuria soongorica,Haloxylon ammodendron+*** and Tamarix ramosissima+***,*** analyzed vertical distribution of root biomass carbon and soil carbon contents by excavating soil profiles for each dominated *** results show that SOC is considerably the larger carbon pool in the soil layers of 1.0-3.0 m(the mean value of three shrubland communities is 3..46%)and 3.0-5.0 m(the mean value is 40.2.%).In contrast,70.74%of belowground biomass carbon storage in 0-1.0 m layer,and its content decrease with increasing soil *** Haloxylon ammodendron+R. soongorica shrubland community has the highest belowground biomass carbon among three selected communities. This study highlights the importance of SOC stored in deep soil layers(lower than 3.0 m from the surface)in arid shrubland communities in the global carbon *** addition,it provides the data support for revealing deep soil solid carbon potential,and offers scientific basis for the further research in the carbon cycle of terrestrial ecosystem.

关键词： shrubland community plant biomass carbon soil organic carbon vertical distribution Gurbantünggüt desert

Toward a general evaluation model for soil respiration (GEMSR)

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Science china(Life Sciences) 2008年第3期51卷 254-262页

作者： ZHOU GuangSheng, JIA BingRui, HAN GuangXuan & ZHOU Li Key laboratory of vegetation and Environmental Change,{2., Chinese Academy of Sciences,{3. Key laboratory of vegetation Environmental Change Institute of Botany Chinese Academy of Sciences Beijing 100093 China

Soil respiration is an important component of terrestrial carbon budget. Its accurate evaluation is es- sential to the study of terrestrial carbon source/sink. Studies on soil respiration at present mostly focus on the temporal variations and the controlling factors of soil respiration, but its spatial variations and controlling factors draw less attention. Moreover, the evaluation models for soil respiration at present include only the effects of water and heat factors, while the biological and soil factors controlling soil respiration and their interactions with water and heat factors have not been considered yet. These models are not able to accurately evaluate soil respiration in different vegetation/terrestrial ecosystems at different temporal and spatial scales. Thus, a general evaluation model for soil respiration (GEMSR) including the interacting meteorological (water and heat factors), soil nutrient and biological factors is suggested in this paper, and the basic procedure developing GEMSR and the research tasks of soil respiration in the future are also discussed.

关键词： soil respiration controlling factors general evaluation model

Environmental archaeology of the Dachang region in the Daning Valley,the Three Gorges reservoir region of the Yangtze River,china

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Chinese Science Bulletin 2008年第S1期53卷 140-152页

作者： ZHANG Yun 1 &ZHU Cheng 2.1 State Key laboratory of vegetation and Environmental Change,{2. of {3.,Chinese Academy of Sciences,beijing 100093. china 2.School of Geographic and Oceanographic Sciences,Nanjing University,Nanjing 2.0093.china 1. State Key laboratory of vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing 100093 China 2. School of Geographic and Oceanographic Sciences Nanjing University Nanjing 210093 China

Environmental archaeology of archaeological sites on both sides of the Dachang section in the Daning River,the Three Gorges of the Yangtze River,shows that riverbed evolution has a great influence on the distribution of archaeological sites during the prehistorical and historical period,and it restricts human activity and the development of ancient *** investigation,dating data,paleocurrent analysis of 100 gravels on the riverbed and archaeological excavation reveal that the riverbed of the Dachang section developed in the Shuangyantang region during the early stage,after about 3. kaBP it shifted westward gradually and reached the present *** with the westward shift,the focus of ancient culture changed for several *** the Western Zhou Dynasty's period,the east riverbank of the Daning River was the main residential *** the Han Dynasty,along with the westward shift,the living space of ancient people was no longer confined to the east riverbank and the focus of culture moved *** the Zhangjiawan site became the main dwelling *** the late Han Dynasty, the villages were flooded and the ancients had to immigrate to a high *** of the Han and the Jin Dynasties outcropped on the flood plain of the east bank because their surface sediments were eroded by several flood events and the westward shift of the riverbed.

关键词： the Daning River environmental archaeology the Shuangyantang site the Zhangjiawan site tombs of the Han and the Jin Dynasties