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| 1 | Stable classi?cation with limited sample: transferring a 30-m resolution sample set collected in 2015 to mapping 10-m resolution global land cover in 2017显示文摘As the world strives to reduce the impact of population growth, urbanization, agricultural expansion, and climate change on food security, energy and water shortage, resource over-exploration, biodiversity loss, environmental pollution, and ultimately human health, timely and higher resolution land cover information is urgently needed to achieve the sustainable development goals of the United Nations. | Peng Gong Han Liu Meinan Zhang Congcong Li Jie Wang Huabing Huang Nicholas Clinton Luyan Ji Wenyu Li Yuqi Bai Bin Chen Bing Xu Zhiliang Zhu Cui Yuan Hoi Ping Suen Jing Guo Nan Xu Weijia Li Yuanyuan Zhao Jun Yang Chaoqing Yu Xi Wang Haohuan Fu Le Yu Iryna Dronova Fengming Hui Xiao Cheng Xueli Shi Fengjin Xiao Qiufeng Liu Lianchun Song | 2019 | Science Bulletin2019,64,6: | 166 |
| 2 | Changes in Mean and Extreme Temperature and Precipitation over the Arid Region of Northwestern China: Observation and Projection显示文摘This paper reports a comprehensive study on the observed and projected spatiotemporal changes in mean and extreme climate over the arid region of northwestern China, based on gridded observation data and CMIP5 simulations under the RCP4.5 and RCP8.5 scenarios. The observational results reveal an increase in annual mean temperature since 1961, largely attributable to the increase in minimum temperature. The annual mean precipitation also exhibits a significant increasing tendency. The precipitation amount in the most recent decade was greater than in any preceding decade since 1961. Seasonally,the greatest increase in temperature and precipitation appears in winter and in summer, respectively. Widespread significant changes in temperature-related extremes are consistent with warming, with decreases in cold extremes and increases in warm extremes. The warming of the coldest night is greater than that of the warmest day, and changes in cold and warm nights are more evident than for cold and warm days. Extreme precipitation and wet days exhibit an increasing trend, and the maximum number of consecutive dry days shows a tendency toward shorter duration. Multi-model ensemble mean projections indicate an overall continual increase in temperature and precipitation during the 21 st century. Decreases in cold extremes, increases in warm extremes, intensification of extreme precipitation, increases in wet days, and decreases in consecutive dry days, are expected under both emissions scenarios, with larger changes corresponding to stronger radiative forcing. | Yujie WANG Botao ZHOU Dahe QIN Jia WU Rong GAO Lianchun SONG | 2017 | Advances in Atmospheric Sciences2017,34,3: | 37 |
| 3 | Dust storms and loess accumulation on the Tibetan Plateau: A case study of dust event on 4 March 2003 in Lhasa显示文摘Whether the Tibetan Plateau is a significant dust source area is of great importance, because this is re-lated to the understanding of sources, accumulation and environmental effects of dusts on the Tibetan Plateau and in the Far East-Pacific Ocean regions as well as to the evolution of coupling of the Tibetan Plateau and atmosphere-ocean- continent exchange. Synoptic dynamics and remote sensing tracing of a dust storm on 3 to 5 March, 2003 in Lhasa on South Tibet demonstrate that the Tibetan Plateau possesses all factors and conditions of generating dust storms. Accom-panied with this dust storm is a strong ascending stream on the Plateau which has raised various sizes of dust particles into different levels. The lifted coarse particles were largely fallen down and accumulated as loess on the eastern Tibetan Plateau, and the fine particles were translated by the west-erly jet and subsided in the northern Pacific Ocean. The spa-tial-temporal distribution of dust-storms between years 1961 and 2000 on the Plateau shows that dust-storms mainly occur in winter and early spring with high frequency, and the path of dust storm moves gradually from south to north, which is closely coupled with the northward moving of the westerly jet from winter to spring over the Tibetan Plateau. Com-pared with other twelve dust source areas in China, the Ti-betan Plateau is one of the key dust source areas for the long-distance transport because its high occurring frequency and elevation cause fine particles easily to be lifted into the zone of the westerly jet. | FANG Xiaomin HAN Yongxiang MA Jinghui SONG Lianchun YANG Shengli ZHANG Xiaoye | 2004 | Chinese Science Bulletin2004,49,9: | 25 |
| 4 | Prediction of Primary Climate Variability Modes at the Beijing Climate Center显示文摘Climate variability modes, usually known as primary climate phenomena, are well recognized as the most important predictability sources in subseasonal–interannual climate prediction. This paper begins by reviewing the research and development carried out, and the recent progress made, at the Beijing Climate Center(BCC) in predicting some primary climate variability modes. These include the El Ni?o–Southern Oscillation(ENSO), Madden–Julian Oscillation(MJO), and Arctic Oscillation(AO), on global scales, as well as the sea surface temperature(SST) modes in the Indian Ocean and North Atlantic, western Pacific subtropical high(WPSH), and the East Asian winter and summer monsoons(EAWM and EASM, respectively), on regional scales. Based on its latest climate and statistical models, the BCC has established a climate phenomenon prediction system(CPPS) and completed a hindcast experiment for the period 1991–2014. The performance of the CPPS in predicting such climate variability modes is systematically evaluated. The results show that skillful predictions have been made for ENSO, MJO, the Indian Ocean basin mode, the WPSH, and partly for the EASM, whereas less skillful predictions were made for the Indian Ocean Dipole(IOD) and North Atlantic SST Tripole, and no clear skill at all for the AO, subtropical IOD, and EAWM. Improvements in the prediction of these climate variability modes with low skill need to be achieved by improving the BCC's climate models, developing physically based statistical models as well as correction methods for model predictions.Some of the monitoring/prediction products of the BCC-CPPS are also introduced in this paper. | Hong-Li REN Fei-Fei JIN Lianchun SONG Bo LU Ben TIAN Jinqing ZUO Ying LIU Jie WU Chongbo ZHAO Yu NIE Peiqun ZHANG Jin BA Yujie WU Jianghua WAN Yuping YAN Fang ZHOU | 2017 | Journal of Meteorological Research2017,31,1: | 13 |
| 5 | Re-Assessing Climatic Warming in China since 1900显示文摘The regional mean surface air temperature(SAT)in China has risen with a rate of 1.3–1.7℃(100 yr)^-1 since 1900,based on the recently developed homogenized observations.This estimate is larger than those[0.5–0.8℃(100 yr)^-1]adopted in the early National Reports of Climate Change in China.The present paper reviews the studies of the longterm SAT series of China,highlighting the homogenization of station observations as the key progress.The SAT series of China in early studies showed a prominent warm peak in the 1940s,mainly due to inhomogeneous records associated with site-moves of a number of stations from urban to outskirts in the early 1950s,thus leading to underestimates of the centennial warming trend.Parts of China were relatively warm around the 1940s but with differentphase interdecadal variations,while some parts were even relatively cool.This fact is supported by proxy data and could partly be explained by interdecadal changes in large-scale circulation.The effect of urbanization should have a minor contribution to the observed warming in China,although the estimates of such contributions for individual urban stations remain controversial.Further studies relevant to the present topic are discussed. | Zhongwei YAN Yihui DING Panmao ZHAI Lianchun SONG Lijuan CAO Zhen LI | 2020 | Journal of Meteorological Research2020,34,2: | 9 |
| 6 | Dust storm in Asia continent and its bio-environmental effects in the North Pacific: A case study of the strongest dust event in April, 2001 in central Asia显示文摘Testing the effects of iron fertilization in booming metabolism of microbes in North Pacific Ocean has become an important hot topic in current global climate change study. The first supportive evidence with natural iron inputs to ocean was ob-tained by Bishop and his colleagues at the PAPA re-gion in North Pacific Ocean. They found a rapid in-crease of marine phytoplankton over North Pacific Ocean after a strong dust storm in April 2001. We demonstrate that the dust deposition flux during this dust storm period decreases exponentially with in-creasing distance from the dust source regions along the dust transport pathway, through integration of synoptic dynamics, changes of TOMS-AI (aerosol index) and surface PM10 values along the dust pathway and changes of particulate organic carbon and chlorophyll in surface oceans. This strong dust storm may result in deposition of about 3.1—5.8 μg/m3 eolian iron into the PAPA region in North Pa-cific Ocean, thus causing a rapid increase of marine phytoplankton productivity observed by Bishop and his colleagues. This work supplies more direct and detailed evidence, from continental dust process, to support the iron hypothesis with natural iron inputs to the surface oceans through dust storms. | HAN Yongxiang FANG Xiaomin XI Xiaoxia SONG Lianchun YANG Shengli | 2006 | Chinese Science Bulletin2006,51,6: | 8 |
| 7 | The Boreal Summer Intraseasonal Oscillation Simulated by Four Chinese AGCMs Participating in the CMIP5 Project显示文摘The performances of four Chinese AGCMs participating in the Coupled Model Intercomparison Project Phase 5(CMIP5)in the simulation of the boreal summer intraseasonal oscillation(BSISO) are assessed. The authors focus on the major characteristics of BSISO: the intensity, significant period, and propagation. The results show that the four AGCMs can reproduce boreal summer intraseasonal signals of precipitation; however their limitations are also evident. Compared with the Climate Prediction Center Merged Analysis of Precipitation(CMAP) data, the models underestimate the strength of the intraseasonal oscillation(ISO) over the eastern equatorial Indian Ocean(IO) during the boreal summer(May to October),but overestimate the intraseasonal variability over the western Pacific(WP). In the model results, the westward propagation dominates, whereas the eastward propagation dominates in the CMAP data. The northward propagation in these models is tilted southwest–northeast, which is also different from the CMAP result. Thus, there is not a northeast–southwest tilted rain belt revolution off the equator during the BSISO's eastward journey in the models. The biases of the BSISO are consistent with the summer mean state, especially the vertical shear. Analysis also shows that there is a positive feedback between the intraseasonal precipitation and the summer mean precipitation. The positive feedback processes may amplify the models' biases in the BSISO simulation. | ZHAO Chongbo ZHOU Tianjun SONG Lianchun REN Hongli | 2014 | Advances in Atmospheric Sciences2014,31,5: | 7 |
| 8 | Tropical cyclone hazards analysis based on tropical cyclone potential impact index显示文摘热带气旋,有重降雨和强风的破坏气象学的系统触发了的一个高精力巨大的山崩和暴风,形成重要威胁到沿海的区域。在这份报纸,我们基于热带气旋的空气团轨道,灾难信息,紧张,持续时间,和频率开发了一个热带气旋潜在的影响索引(TCPI ) 。我们在时期上分析了空间模式和 TCPI 的 interannual 变化 19492009,并且作为一个例子拿超级台风 Saomai 检验了在损失,全部的降雨,和最大值弯屈的 TCPI 和直接经济之间的关系速度。结果表明瓷器 TCPI 看起来是在时期上的一个弱减少趋势,它不是重要的在一些时期全面,却重要。在过去的 20 年,当它在浙江,福建和台湾的东南的沿海的省增加了时, TCPI 在海南,广东和 Guangxi 的南部的中国沿海的省减少了。TCPI 的最高的价值主要在台湾被观察,海南,广东和福建和浙江的沿海的区域南部的海岸。TCPI 与直接经济的损失,降雨,和最大的风速度有好关联(P=0.01 ) 。 | XIAO Fengjin YIN Yizhou LUO Yong SONG Lianchun YE Dianxiu | 2011 | Journal of Geographical Sciences2011,21,5: | 5 |
| 9 | PEG-assisted Hydrothermal synthesis and photoluminescence of CdMoO 4 :Tb 3+ green phosphor显示文摘 | Junjun Zhang Tianqi Zhao Bingnan Wang Linlin Li Lianchun Zou Shucai Gan | 2014 | Journal of Physics and Chemistry of Solids2014,,: | 4 |
| 10 | Tropospheric Wet Refractivity Tomography Based on the BeiDou Satellite System显示文摘This paper presents a novel approach for assessing the precision of the wet refractivity field using BDS(BeiDou navigation satellite system) simulations only, GPS, and BDS+GPS for the Shenzhen and Hongkong GNSS network. The simulations are carried out by adding artificial noise to a real observation dataset. Instead of using the δ and σ parameters computed from slant wet delay, as in previous studies, we employ the Bias and RMS parameters, computed from the tomography results of total voxels, in order to obtain a more direct and comprehensive evaluation of the precision of the refractivity field determination. The results show that:(1) the precision of tropospheric wet refractivity estimated using BDS alone(only 9 satellites used) is basically comparable to that of GPS;(2) BDS+GPS(as of current operation) may not be able to significantly improve the data's spatial density for the application of refractivity tomography; and(3) any slight increase in the precision of refractivity tomography, particularly in the lower atmosphere, bears great significance for any applications dependent on the Chinese operational meteorological service. | WANG Xiaoying WANG Xianliang DAI Ziqiang KE Fuyang CAO Yunchang WANG Feifei SONG Lianchun | 2014 | Advances in Atmospheric Sciences2014,31,2: | 3 |
| 11 | Spatiotemporal distribution characteristics of the fog regions in China显示文摘The spatial distribution and monthly/annual variation of foggy days in China are analyzed based on the monthly mean fog data collected from 604 observational stations for the period 1961–2000. Results show that there are six fog regions in China: the middle reaches of the Yangtze River, coastal areas, Yunnan-Guizhou Plateau, eastern Gansu–Shaanxi region, Huaihe River valley, Tianshan mountainous area and northern Xinjiang. On the whole the interannual variation trend of foggy days is descending, especially an obvious decline after the 1980s. The areas where the foggy days have obvious tendency present a southwest-northeast direction. The rising trend regions alternate with descending trend regions, forming a SE-NW directional wave structure. In general, the number of foggy days in autumn and winter is larger than in spring and summer over most fog regions. The monthly variation curves of foggy days are bimodal in the coastal area of the Yellow Sea and northern Xinjiang, and unimodal in other regions. | WANG Liping CHEN Shaoyong DONG Anxiang SONG Lianchun | 2006 | Journal of Geographical Sciences2006,16,3: | 3 |
| 12 | Genetic diversity and association analyses of fruit traits with microsatellite ISSRs in Sapindus显示文摘Sapindus mukorossi Gaertn. and S. delavayi Franchet are among the most valuable species in the genus Sapindus for their commercially exploitable plant oils and chemicals. However, few studies have addressed genetic variation and improvement for either species. We evaluated the genetic diversity of germplasm from selected plus trees within a wide region and established the relationship between fruit traits and molecular markers. An association analysis based on inter-simple sequence repeats(ISSRs)provided a genetic basis for studies of fruit traits. A total of 247 loci were detected by scanning 61 trees of S. mukorossi and S. delavayi using 16 ISSR markers. Genetic diversity parameters were estimated for selected superior trees(or germplasm) and S. mukorossi and S. delavayi were categorized into two main groups, as well as into four groups within S. mukorossi. An association analysis between the ISSR markers and 14 fruit traits used the TASSEL MLM model. A genetic structure analysis differentiated S.mukorossi and S. delavayi. Eighteen ISSR loci associated with 13 fruit traits(P<0.005) were identified, with 13, 1,and 4 loci associated with seed oil production, fruit saponin production, and fruit quality, respectively. Using this information, a core collection was selected with adequate genetic diversity and good seed oil characters. Our results demonstrate the feasibility of effectively estimating fruit trait associations in Sapindus using ISSR markers, and the method is applicable and valuable for select germplasm conservation. The markers obtained in this study are potentially useful for molecular-assisted breeding of Sapindus spp. | Caowen Sun Liming Jia Benye Xi Jiming Liu Lianchun Wang Xuehuang Weng | 2019 | Journal of Forestry Research2019,30,1: | 2 |
| 13 | Construction and Application of a Climate Risk Index for China显示文摘In the context of global warming,China is facing with increasing climate risks.It is imperative to develop quantitative indices to reflect the climate risks caused by extreme weather/climate events and adverse climatic conditions in association with different industries.Based on the observations at 2288 meteorological stations in China and the meteorological disasters data,a set of indices are developed to measure climate risks due to water-logging,drought,high temperature,cryogenic freezing,and typhoon.A statistical method is then used to construct an overall climate risk index(CRI)for China from these individual indices.There is a good correspondence between these indices and historical climatic conditions.The CRI,the index of water-logging by rain,and the high temperature index increase at a rate of 0.28,0.37,and 0.65 per decade,respectively,from 1961 to 2016.The cryogenic freezing index is closely related to changes in the consumer price index for food.The high temperature index is correlated with the consumption of energy and electricity.The correlation between the yearly growth in claims on household property insurance and the sum of the water-logging index and the typhoon index in the same year is as high as 0.70.Both the growth rate of claims on agricultural insurance and the annual growth rate of hospital inpatients are positively correlated with the CRI.The year-on-year growth in the number of domestic tourists is significantly negatively correlated with the CRI in the same year.More efforts are needed to develop regional CRIs. | Yujie WANG Lianchun SONG Dianxiu YE Zhe WANG Rong GAO Xiucang LI Yizhou YIN Zunya WANG Yaoming LIAO | 2018 | Journal of Meteorological Research2018,32,6: | 2 |
| 14 | Reliability of weak signals detection in neurons with noise显示文摘Previous experimental and theoretical studies have demonstrated that a weak signal can be amplified and optimized by the assistance of noise. The response of the system undergoes stochastic resonance(SR) like behavior. The underlying mechanisms are fairly simple and robust. This phenomenon has been observed in a large variety of systems, including physical and biological systems. In the nervous system, the majority of synaptic input is too weak to make neurons fire a spike. This weak(or subthreshold) signals detection is very important for animal survival, and pulse detection is a simple but basic task of neuronal information transmission and processing. Some studies have found that subthreshold signals can be transmitted by the application of external noise. However, neurons are subjected to various kinds of inherent noise. Recently, theoretical work has revealed that this inherent noise improves signals detection ability. The detection ability of a single neuron is limited, and the neuronal circuit can perform this task very well by detecting the synchronization of presynaptic potentials. Here, we review recent studies of subthreshold detection by both single neurons and neuronal circuits. | SHEN YueLing YU LianChun CHEN Yong | 2016 | Science China(Technological Sciences)2016,59,3: | 2 |
| 15 | Multi-institutional retrospective analysis of FOLFIRI in patients with advanced biliary tract cancers显示文摘BACKGROUND Gemcitabine plus platinum is the standard of care first-line treatment for advanced biliary tract cancers(BTC).There is no established second-line therapy,and retrospective reviews report median progression-free survival(PFS)less than 3 mo on second-line therapy.5-Fluorouracil plus irinotecan(FOLFIRI)is a commonly used regimen in patients with BTC who have progressed on gemcitabine plus platinum,though there is a paucity of data regarding its efficacy in this population.AIM To assess the efficacy of FOLFIRI in patients with biliary tract cancers.METHODS We retrospectively identified patients with advanced BTC who were treated with FOLFIRI at MD Anderson,University of Michigan and Mayo Clinic in Jacksonville.Data were collected on patient demographics,BTC subtype,response per RECIST v1.1,progression and survival.RESULTS Ninety-eight patients were included of which 74(75%)had metastatic and 24(25%)had locally advanced disease at the time of treatment with FOLFIRI.The median age was 60(range,22-86)years.The number of patients with extrahepatic cholangiocarcinoma,gall bladder cancer and intrahepatic cholangiocarcinoma were 10,17 and 71,respectively.FOLFIRI was used as 1st,2nd,3rd or 4th–Nth lines in 8,50,36 and 4 patients,respectively.Median duration on FOLFIRI in the entire cohort was 2.2(range,0.5-8.4)mo.The median PFS and overall survival were 2.4(95%confidence interval(CI):1.7-3.1)and 6.6(95%CI:4.7-8.4)mo,respectively.Median PFS for patients treated with FOLFIRI in 1st,2nd,3rd or 4th–Nth lines were 3.1,2.5,2.3 and 1.5 mo,respectively.Eighteen patients received concurrent bevacizumab(n=13)or EGFR-targeted therapy(n=5)with FOLFIRI,with a median PFS of 2.7 mo(95%CI:1.7-5.1).CONCLUSION In this largest multi-institution retrospective review of 98 patients with BTC treated with FOLFIRI,efficacy appears to be modest with outcomes similar to other cytotoxic chemotherapy regimens. | Jonathan D Mizrahi Valerie Gunchick Kabir Mody Lianchun Xiao Phanikeerthi Surapaneni Rachna T Shroff Vaibhav Sahai | 2020 | World Journal of Gastrointestinal Oncology2020,12,1: | 2 |
| 16 | Location of pulmonary metastasis in pediatric osteosarcoma is predictive of outcome显示文摘 | Phillip A. Letourneau Lianchun Xiao Matthew T. Harting Kevin P. Lally Charles S. Cox Richard J. Andrassy Andrea A. Hayes-Jordan | 2011 | Journal of Pediatric Surgery2011,,7: | 1 |
| 17 | A new design method for stainless steel columns subjected to flexural buckling显示文摘 | Shu Ganping Zheng Baofeng Xin Lianchun | 2014 | Thin-Walled Structures2014,83,: | 1 |
| 18 | Preparation,characterization and catalytic activity of sulphated zirconia-silica nanocrystalline catalyst显示文摘 | Yang Hua Lu Rong Shen Lianchun etal | 2003 | Materials Letters2003,57,16: | 1 |
| 19 | Direct tandem mass spectrometry reveals limitations in protein profiling experiments for plasma biomarker discovery 显示文摘 | KOOMEN J M LI Donghui XIAO Lianchun | 2005 | J Proteome Res2005,4,3: | 1 |
| 20 | Characteristic of hydrologic transfer between soil and atmosphere over gobi near oasis at the end of summer显示文摘 | Zhang Qiang Song Lianchun Huang Ronghui | 2003 | Advance in Atmosphere Sciences2003,20,3: | 1 |