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| 1 | A high-resolution climatic change since Holocene inferred from multi-proxy of lake sediment in westerly area of China显示文摘Multi-proxy data are presented and a discuss is made of paleoclimatic and paleoenvironmental changes during Holocene from a 225-cm-long sediment core from Wulungu Lake, located in westerly area of China. The chronology is constructed from six AMS radiocarbon dates on the bulk organic matter. Analyses of pollen, TOC, TN, δ 13Corg, ostracod assemblages and the shell stable isotopes, suggest Holocene climate pattern as follows: temperate and dry (10.0―7.6 cal. ka BP)-warm and wet (7.6―5.3 cal. ka BP) -warm and moist (5.3―3.6 cal. ka BP) -temperate and dry (3.6―2.1 cal. ka BP)-temperate and moist (2.1―1.3 cal. ka BP) -cool and dry (1.3 cal. ka BP―present). With the climatic change, Wulungu Lake experienced two large-scale retreat (5.3―3.6 cal. ka BP and 1.3 cal. ka BP―present) and an obvious transgression (7.6―5.3 cal. ka BP). The records of climatic and environmental evolution of Wulungu Lake were in good accordance with those of adjacent areas. It responded to regional environmental change, global abrupt climate events and followed the westerly climate change mode. | JIANG QingFeng SHEN Ji LIU XingQi ZHANG EnLou XIAO XiaYun | 2007 | Chinese Science Bulletin2007，52，14： | 28 |
| 2 | Environmental changes during early-middle Holocene from the sediment record of the Chaohu Lake,Anhui Province显示文摘A typical lake sediment core is obtained from the Chaohu Lake in the lower reaches of the Yangtze River,Anhui Province,China.The timing scale is constrained by AMS 14 C dating method.Climate proxies such as pollen and grain size in the core are analyzed to reconstruct the environment changes at this site approximately between 9870 and 2170 cal.a BP.The results indicate that at the research area, the climate in the early-middle Holocene had evolved through 3 stages.From 9870 to 6040 cal.a BP, proxy records show a warm and dry climate with low water levels after the late-glacial period.During this stage,cool and dry events occurred at about 8910 and 6060-6030 cal.a BP.Then,between 6040 and 4860 cal.a BP,the climate was humid and vegetation was more flourishing in the Chaohu Lake Valley.The Holocene Optimum occurred at 5840-5500 cal.a BP in the Chaohu Lake,showing the best condition of water and heat.Elm Decline occurred at the period of 5380-4930 cal.a BP.Since 4860 cal.a BP,the climate was warm and dry through 2170 cal.a BP as shown in both pollen spectrum and grain-size histories.Two obvious dry events occurred in 3760 and 2170 cal.a BP,respectively.At 2170 cal.a BP,the water level of the Chaohu Lake reached the lowest as the lakebed possibly exposed. Such lake sediment observations are consistent with the historical records in this area. | XinYuan Wang GuangSheng Zhang Li Wu XiHui Zhang EnLou Zhang XiaYun Xiao QingFeng Jiang | 2008 | Chinese Science Bulletin2008，53，S1： | 15 |
| 3 | Palynological evidence for vegetational and climatic changes from the HQ deep drilling core in Yunnan Province, China显示文摘The high-resolution pollen study of a 737.72-m-long lake sediment core in the Heqing Basin of Yunnan Province shows that the vegetation and climate of mountains around the Heqing Basin went through six obvious changes since 2.780 Ma B.P. Namely, Pinus forest occupied most mountains around the studied area and the structure of vertical vegetational belt was simple between 2.780 and 2.729 Ma B.P., reflecting a relatively warm and dry climate. During 2.729―2.608 Ma B.P., the areas of cold-temperate conifer forest (CTCF) and Tsuga forest increased and the structure of vertical vegetational belt became clear. According to percentages of tropical and subtropical elements growing in low-altitude regions rifely increased, we speculate that the increase of CTCF and Tsuga forest areas mainly resulted from strong uplift of mountains which provided upward expanding space and growing condition for these plants. Thus, the climate of the low-altitude regions around the basin was relatively warm and humid. Between 2.608 and 1.553 Ma B.P., Pinus forest occupied most mountains around the studied area and forest line of CTCF rose, which reflects a moderately warm-dry climate on the whole. During 1.553―0.876 Ma B.P., the structure of vertical vegetational belt in mountains around the studied area became complicated and the amplitude of vegetational belts shifting up and down enlarged, which implies that the amplitude of climatic change increased, the climatic associational feature was more complex and the climate was moderately cold at a majority of the stage. During 0.876―0.252 Ma B.P., there were all vertical vegetational belts existing at present in mountains around the studied area. The elements of each belt were more abundant and complex than earlier. At different periods in the stage vertical vegetational belts occurred as expanding or shrinking, and alternated each other. The amplitude of vegetational belts shifting up and down was the maximum in the whole section. This change suggests that the amplitude of climatic change was evidently larger than earlier, but the frequency reduced and the climatic associational feature was more complex. From 0.252 Ma B.P. to the present, the most time was characteristic of the expanding of Pinus forest and semi-humid evergreen broad-leaved forest (SEBF) in mountains around the studied area, while expanding time of other vegetational belts was very short, which reflects a smaller amplitude of cold and warm fluctuation. On the basis of the six obvious cycles of vegetational and climatic changes, there were still many times of secondary vegetational successions and climatic oscillations. Based on the above analysis, the forcing mechanism of vegeta-tional succession and climatic change in the Heqing Basin is further discussed. It is primarily consid-ered that main influential factors were exterior factors such as orbital parameters, etc., but the uplift of the Qinghai-Tibet Plateau played a very important function for environmental changes in the Heqing Basin at two times obvious increase of vertical vegetational belts and three climatic transitions. | XIAO XiaYun SHEN Ji WANG SuMin XIAO HaiFeng TONG GuoBang | 2007 | Science China Earth Sciences2007，50，8： | 10 |
| 4 | Surface pollen distribution patterns in Beibu Gulf and corresponding sediment dynamics environment显示文摘The Beibu Gulf is a semi-enclosed gulf in the northwest of the South China Sea.We palynologically analyzed 306 surface sediment samples from the eastern Beibu Gulf to improve bioclimatic interpretation of fossil pollen records there.Surface pollen assemblages could be classified into five pollen regions based on the distributions of total,arboreal,herbaceous and fern pollen concentrations.Four high-concentration and three low-concentration subregions could be distinguished within these regions.The distribution patterns of surface pollen assemblages were consistent with those of grain sizes of surface sediments.Sediments from regions with high pollen concentrations were very fine and fine silts (>7.0,<0.008 mm),whereas those with low pollen concentrations were fine sand (<3.5,>0.088 mm).Sedimentary heterogeneity of surface pollen assemblages was closely related to pollen source,transportation and sedimentation controlled by ocean currents,tides and waves,and oceanic bottom topography.Fern spores exhibited higher percentages along the east margins of the region,while arboreal types like Pinus increased in concentration towards the center.Herbaceous pollen appeared in high percentages around seacoasts near their source areas.Dacrydium and mangrove pollen were distributed near their source regions at low percentages.We discuss the sediment dynamic environments in the eastern Beibu Gulf based on surface pollen distributions.The estuary region is an important access to the sea basin and a depositional site for terrestrial pollen grains.Coastal regions can accumulate pollen due to the back-and-forth movements of tides there.Although ocean currents on a gulf scale tend to spread pollen grains,the interaction of multiple currents could lead to pollen accumulation and deposition.Low surface pollen concentrations in the northeast shallow-water regions of the eastern Beibu Gulf could be attributed to repeated washing and sediment floatation caused by severe wave activities during the summer.Strong tides in Qiongzhou Strait frequently wash the seabed and disadvantage pollen deposition,leading to low surface pollen concentrations there. | TONG GuoBan CHEN Lian LONG JiangPing LI TuanJie XIAO XiaYun TONG SongMei | 2012 | Chinese Science Bulletin2012，57，8： | 8 |
| 5 | The plant diversity and its relationship with paleoenvironment since 2.78 Ma revealed by pollen records in the Heqing deep drilling core显示文摘Multifold palynological diversity indices calculated by pollen data of the Heqing deep drilling core are synthetically analyzed, the results show that the plant diversity rapidly increased and its fluctuant amplitude and frequency evidently largened during the stages of 2.729―2.608 Ma, 1.176―0.342 Ma and since 0.118 Ma respectively, while during the other periods the plant diversity was relatively low with a gentle fluctuation. To discuss further the relation between ancient plant diversity and paleoenvironment, it is considered that the plant diversity in the Heqing region lies on increase or decrease of vertical vegetational belts in mountains around the studied area and richness of components of these vegetational belts, and is controlled by amplitude of tectonic uplift of mountains and climatic changes. The high plant diversity during 2.729―2.608 Ma responded to the strong uplift of mountains at the stage, while the plant diversity greatly increased and its fluctuant amplitude and frequency markedly largened at about 1.176 Ma was obviously response to the Middle Pleistocene Transition. The plant diversity and its fluctuant amplitude and frequency increased further at about 0.991 Ma may be superposably affected by both the Middle Pleistocene Transition and the tectonic uplift. The plant diversity increased since 0.118 Ma may indicate that the southwest monsoon strengthened and humid climate more fitted many kinds of plants to grow. | XIAO XiaYun SHEN Ji WANG SuMin XIAO HaiFeng TONG GuoBang | 2008 | Chinese Science Bulletin2008，53，23： | 8 |
| 6 | Pollen-based Holocene quantitative temperature reconstruction on the eastern Tibetan Plateau using a comprehensive method framework显示文摘Quantitative climate reconstruction on long timescales can provide important insights for understanding the climate variability and providing valuable data for simulations. Unfortunately, the credibility of some attempts was hampered by incomplete reconstruction procedures. We here establish a comprehensive framework resting on high-quality Chinese modern pollen database, including modern pollen data screening, calibration set selection, major climate factor analysis, appropriate model selection, strict statistical assessment of results and ecological interpretation. The application of this framework to three high-resolution pollen records from the eastern Tibetan Plateau allows accurate quantitative inferences of Holocene temperature changes, which is the major control of regional vegetation. The results show that the mean warmest month temperature(MTwa)during the early Holocene was ca. 10.4℃ and reached the highest value at 8.5–6 ka BP(ca. 11℃). The early and mid-Holocene(11–5 ka BP) warmth was followed by 1.2℃ temperature decrease, culminating in the coolest temperatures of the Holocene during the Neoglacial cooling. Superimposing on the general cooling trend, MTwareveals a significant 500-yr periodicity with varying intensities through time, showing that warm(cold) intervals are in phase with solar maxima(minima) periods. This spectral similarity indicates a possible connection of multi-century scale climate fluctuations with solar forcing. | Chen LIANG Yan ZHAO Feng QIN Zhuo ZHENG Xiayun XIAO Chunmei MA Huan LI Wenwei ZHAO | 2020 | Science China Earth Sciences2020，63，8： | 5 |
| 7 | The orbital scale evolution of regional climate recorded in a long sediment core from Heqing,China显示文摘Based on the analysis of carbonate content and loss on ignition for a long sediment core (737 m in length) drilled in Heqing, the orbital scale evolution of the Southwest Monsoon is revealed, by using overlapped spectral analysis and filter methods. It is shown that the obliquity cycle and precession cycle are the key factors for the Southwest Monsoon evolution and that the change of the global ice volume and the uplift of the Qinghai-Tibetan Plateau also impose great influences on it. | SHEN Ji XIAO HaiFeng WANG SuMin AN ZhiSheng QIANG XiaoKe XIAO XiaYun | 2007 | Chinese Science Bulletin2007，52，13： | 4 |
| 8 | Experimental study on high viscosity fluid micro-droplet jetting system显示文摘 | XiaYun Shu HongHai Zhang HuaYong Liu Dan Xie JunFeng Xiao | 2010 | Science in China Series E: Technological Sciences2010，，1： | 2 |
| 9 | Ploidy level and performance in meiotic gynogenetic offsprings of grass carp using UV-irradiated blunt snout bream sperm显示文摘Diploid(2n)gynogens,triploid(3n)hybrids and 2n hybrids fish were produced in meiotic gynogenetic offsprings of grass carp(Ctenopharyngodon idella)eggs using UV-irradiated blunt snout bream(Megalobrama amblycephala)sperm.Flow cytometry revealed that a total of 306(54.2%)2n gynogens,157(27.7%)2n hybrids and 102(18.1%)3n hybrids were identified at one year old stage examined.Chromosome analysis showed that 2n gynogens and 2n hybrid individuals had the same chromosome number as their parents(2n¼48),while the chromosome number of 3n hybrids was 3n¼72.The morphological characters of 2n hybrids and 3n hybrids were intermediate between their parents,and the 2n gynogens were similar to grass carp.Microsatellite genetic analysis showed that the expected heterozygosity(He)of 2n gynogens,2n hybrids,3n hybrids and grass carp control were 0.3775,0.6518,0.6601,0.6502,respectively,and the polymorphism information content(PIC)was 0.3791,0.5749,0.5907,0.5738,respectively.Compared with 2n and 3n hybrids,the He and PIC of 2n gynogens were significantly decreased,indicating that high homozygous could be obtained by the gynogenetic method.The 3n hybrids grew faster than both 2n gynogens and 2n hybrid individuals,suggesting that 3n hybrids had an obvious growth advantage. | Guodong Zheng Chenglong Wang Dandan Guo Xiayun Jiang Shuming Zou | 2017 | Aquaculture and Fisheries2017，2，5： | 2 |
| 10 | The interaction of DNA with phytoferritin during iron oxidation显示文摘 | Rui Yang Senpei Yang Xiayun Liao Jianjun Deng Guanghua Zhao | 2014 | Food Chemistry2014，，： | 1 |
| 11 | A novel strategy of natural plant ferritin to protect DNA from oxidative damage during iron oxidation显示文摘 | Xiayun Liao Chenyan Lv Xiuqing Zhang Taro Masuda Meiliang Li Guanghua Zhao | 2012 | Free Radical Biology and Medicine2012，，2： | 1 |
| 12 | Salidroside ameliorates cognitive impairment in a d -galactose-induced rat model of Alzheimer’s disease显示文摘 | Jin Gao He He Wenjiao Jiang Xiayun Chang Lingpeng Zhu Fen Luo Rui Zhou Chunhua Ma Tianhua Yan | 2015 | Behavioural Brain Research2015，，： | 1 |
| 13 | The design of exoskeleton lower limbs rehabilitation robot显示文摘To achieve human lower limbs rehabilitation training,the exoskeleton lower limbs rehabilitation robot is designed. Through respective motor driving, the retarding mechanism and telescopic adjusting mechanism, the function of human walking is accomplished. After the design of the mechanical structure, the finite element analysis is carried out on the important parts and the control system is achieved by Single Chip Microcomputer. | Zhao Xiayun Wang Zhengxing Liu Zhengyu Zhang Li | 2016 | Computer Aided Drafting,Design and Manufacturing2016，26，2： | 1 |
| 14 | Radial basis function neural network-based QSPR for the prediction of criticM temperature显示文摘 | YAO Xiao-jun WANG Ya-wei ZHANG Xiayun | 2002 | Chemometrics and Intelligent Laboratory Systems2002，62，2： | 1 |
| 15 | Experimental study on high viscosity fluid micro-droplet jetting system显示文摘 | XiaYun Shu HongHai Zhang HuaYong Liu Dan Xie JunFeng Xiao | 2010 | Science in China Series E: Technological Sciences2010，，1： | 1 |
| 16 | High resolution imaging using a wideband MIMO radar system with two distributed arrays 显示文摘 | Wang Dei Ma Xiayun Chen An | 2010 | IEEE Transactions on Image Processing2010，19，5： | 1 |
| 17 | Thermal behaviour of 3-nitro1,2,4-triazol-5-one and its salts显示文摘 | Yi X Rongzu H Xiayun | 1991 | Thermochimica Acta1991，189，： | 1 |
| 18 | Purification,characterization and action mode of a chitosanase from streptomyces roseolus induced by chitin显示文摘 | Jiang Xiayun Chen Daochun Chen Liehuan | | 0，，： | 1 |
| 19 | Chinese Enterprises in Laos and Cambodia显示文摘In recent years there has been a rapid increase in Chinese enterprises investing in Laos and Cambodia. However, this increase has drawn both praise and criticism. Praise is mainly concerning Chinese enterprises' efforts to support local development, and their assistance in achieving power-sufficiency in power generation and stabilizing domestic prices. Criticisms, which mainly concentrate on their lack of transparency, environmental awareness, and communication with local communities, reflect the challenges Chinese companies face in going global. To address these criticisms, the Chinese government needs to strengthen their oversight capacity with respect to Chinese overseas enterprises and help them develop an awareness of corporate social responsibility (CSR). Enterprises themselves should improve their overseas image by internalizing the idea of CSR in their business model, and interacting more with local communities and NGOs. | Huang Ying, Ni Xiayun, Zhang Xuegang | 2010 | Contemporary International Relations2010，20，4： | 0 |
| 20 | Polydiacetylene-Tb3+ Nanosheets of Which Both the Color and the Fluorescence Can Be Reversibly Switched between Two Colors显示文摘 | Yuansi Yao Kaiyu Fu Xiayun Huang Daoyong Chen | 2017 | Chinese Journal of Chemistry2017，35，11： | 0 |
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