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| 1 | Development of a Chinese land data assimilation system:its progress and prospects显示文摘陆地数据吸收的目的是为改进陆地表面状态的评价把多来源观察合成陆地表面模型的动力学。我们为中国的陆地领土开发了一个陆地数据吸收系统。在这个系统,普通陆地模型和简单生物圈,模型 2 被用来模仿陆地表面过程。当转移的观察操作员为预言建模进估计的亮度温度,融化并且结冰的土壤,雪,湖,和植被的放射的转移模型被使用。一个 Monte-Carlo 顺序的过滤器,整体 Kalman 过滤器,作为数据吸收方法被实现集成当模特儿并且观察。系统能够遥远地吸收被动微波察觉到的数据象特殊传感器微波成像器那样(SSM 我) , TRMM 微波成像器(TMI ) ,和先进微波扫描辐射计为曙光女神(AMSRE ) 提高了并且在土壤和雪的 situmeasurements 常规。与 0.25 度的一个空间决定和一个小时的时间的分辨率,为土壤潮湿,土壤温度,雪和冻结的土壤的空间与时间地一致的吸收数据集被生产了。这篇论文介绍在数据吸收算法,陆地表面水文学变量的陆地表面建模微波遥感,和大气的强迫的数据的准备上做的中国陆地数据吸收系统和进步的开发。为未来开发开发陆地数据吸收系统和观点的不同特征和挑战也被讨论。 | Li Xin Huang Chunlin Che Tao Jin Rui Wang Shugong Wang Jiemin Gao Feng Zhang Shuwen Qiu Chongjian Wang Chenghai | 2007 | Progress in Natural Science:Materials International2007，17，8： | 30 |
| 2 | Hierarchical hollow Li4Ti5O12 urchin-like microspheres with ultra-high specific surface area for high rate lithium ion batteries显示文摘 | Jin Cheng Renchao Che Chongyun Liang Jiwei Liu Min Wang Junjie Xu | 2014 | Nano Research2014，7，7： | 11 |
| 3 | Mapping the permafrost stability on the Tibetan Plateau for 2005–2015显示文摘Data scarcity is a major obstacle for high-resolution mapping of permafrost on the Tibetan Plateau(TP).This study produces a new permafrost stability distribution map for the 2010 s(2005–2015)derived from the predicted mean annual ground temperature(MAGT)at a depth of zero annual amplitude(10–25 m)by integrating remotely sensed freezing degree-days and thawing degree-days,snow cover days,leaf area index,soil bulk density,high-accuracy soil moisture data,and in situ MAGT measurements from 237 boreholes on the TP by using an ensemble learning method that employs a support vector regression model based on distance-blocked resampled training data with 200 repetitions.Validation of the new permafrost map indicates that it is probably the most accurate of all currently available maps.This map shows that the total area of permafrost on the TP,excluding glaciers and lakes,is approximately 115.02(105.47–129.59)×10^4 km^2.The areas corresponding to the very stable,stable,semi-stable,transitional,and unstable types are 0.86×10^4,9.62×10^4,38.45×10^4,42.29×10^4,and 23.80×10^4 km^2,respectively.This new map is of fundamental importance for engineering planning and design,ecosystem management,and evaluation of the permafrost change in the future on the TP as a baseline. | Youhua RAN Xin LI Guodong CHENG Zhuotong NAN Jinxing CHE Yu SHENG Qingbai WU Huijun JIN Dongliang LUO Zhiguang TANG Xiaobo WU | 2021 | Science China Earth Sciences2021，64，1： | 11 |
| 4 | Hierarchical Magnetic Network Constructed by CoFe Nanoparticles Suspended Within “Tubes on Rods” Matrix Toward Enhanced Microwave Absorption显示文摘Hierarchical magnetic-dielectric composites are promising functional materials with prospective applications in microwave absorption(MA)field.Herein,a three-dimension hierarchical“nanotubes on microrods,”core–shell magnetic metal–carbon composite is rationally constructed for the first time via a fast metal–organic frameworksbased ligand exchange strategy followed by a carbonization treatment with melamine.Abundant magnetic CoFe nanoparticles are embedded within one-dimensional graphitized carbon/carbon nanotubes supported on micro-scale Mo2N rod(Mo2N@CoFe@C/CNT),constructing a special multi-dimension hierarchical MA material.Ligand exchange reaction is found to determine the formation of hierarchical magnetic-dielectric composite,which is assembled by dielectric Mo2N as core and spatially dispersed CoFe nanoparticles within C/CNTs as shell.Mo2N@CoFe@C/CNT composites exhibit superior MA performance with maximum reflection loss of−53.5 dB at 2 mm thickness and show a broad effective absorption bandwidth of 5.0 GHz.The Mo2N@CoFe@C/CNT composites hold the following advantages:(1)hierarchical core–shell structure offers plentiful of heterojunction interfaces and triggers interfacial polarization,(2)unique electronic migration/hop paths in the graphitized C/CNTs and Mo2N rod facilitate conductive loss,(3)highly dispersed magnetic CoFe nanoparticles within“tubes on rods”matrix build multi-scale magnetic coupling network and reinforce magnetic response capability,confirmed by the off-axis electron holography. | Chunyang Xu Lei Wang Xiao Li Xiang Qian Zhengchen Wu Wenbin You Ke Pei Gang Qin Qingwen Zeng Ziqi Yang Chen Jin Renchao Che | 2021 | Nano-Micro Letters2021，13，3： | 10 |
| 5 | Matrilineal History of the Rana longicrus Species Group(Rana,Ranidae,Anura) and the Description of a New Species from Hunan,southern China显示文摘Fieldwork in Jiemuxi National Nature Reserve,Hunan,China,discovered morphologically indistinguishable groups of brown frogs that bred at different,exclusive times of the year.A principal components analysis of morphometric data,molecular analyses,and the exclusive breeding season suggested the occurrence of two species.The population that breeds during the winter was found to be an undescribed species and was subsequently described as Rana jiemuxiensis sp.nov.The new cryptic species can be identified from its congeners at the same locality by having a different breeding season and a divergent DNA barcode.Six major lineages of brown frogs were resolved with high nodal support.Rana japonica,R.chaochiaoensis,R.omeimontis,and R.jiemuxiensis have independent maternal lineages.Rana hanlunica and R.maoershanensis have essentially identical maternal lineages and they appear to represent the same species.The validity of the species R.longicrus,R.zhenhaiensis,and R.culaiensis and their genealogical relationships are not resolved and deserve further study.The genealogy indicates that sympatric cryptic lineages probably widely exist in the R.longicrus group.This highlights the importance of future more fine-scaled samplings and the inclusion of nuclear genes. | Fang YAN Ke JIANG Hongman CHEN Ping FANG Jieqiong JIN Yi LI Shaoneng WANG Robert W.MURPHY Jing CHE Yaping ZHANG | 2011 | Asian Herpetological Research2011，2，2： | 8 |
| 6 | Hypothalamic paraventricular nucleus stimulation reduces intestinal injury in rats with ulcerative colitis显示文摘AIM: To investigate the effect and mechanism of stimulation of the hypothalamic paraventricular nucleus with glutamate acid in rats with ulcerative colitis(UC).METHODS: The rats were anesthetized with 10% chloral hydrate via abdominal injection and treated with an equal volume of TNBS + 50% ethanol enema, injected into the upper section of the anus with the tail facing up. Colonic damage scores were calculated after injecting a certain dose of glutamic acid into the paraventricular nucleus(p VN), and the effect of the nucleus tractus solitarius(NTS) and vagus nerve in alleviating UC injury through chemical stimulation of the p VN was observed in rats. Expression changes of C-myc, Apaf-1, caspase-3, interleukin(IL)-6, and IL-17 during the protection against UC injury through chemical stimulation of the p VN in rats were detected by Western blot. Malondialdehyde(MDA) content and superoxide dismutase(SOD) activity in colon tissues of rats were measured by colorimetric methods. RESULTS: Chemical stimulation of the PVN significantly reduced UC in rats in a dose-dependent manner. The protective effects of the chemical stimulationof the p VN on rats with UC were eliminated after chemical damage to the p VN. After glutamate receptor antagonist kynurenic acid was injected into the p VN, the protective effects of the chemical stimulation of the p VN were eliminated in rats with UC. After AVpVl receptor antagonist([Deamino-penl, val4, D-Arg8]-vasopressin) was injected into NTS or bilateral chemical damage to NTS, the protective effect of the chemical stimulation of p VN on UC was also eliminated. After chemical stimulation of the p VN, SOD activity increased, MDA content decreased, C-myc protein expression significantly increased, caspase-3 and Apaf-1 protein expression significantly decreased, and IL-6 and IL-17 expression decreased in colon tissues in rats with UC. CONCLUSION: Chemical stimulation of the hypothalamic p VN provides a protective effect against UC injury in rats. Hypothalamic p VN, NTS and vagus nerve play key roles in this process. | Quan-Jun Deng Ding-Jing Deng Jin Che Hai-Rong Zhao Jun-Jie Yu Yong-Yu Lu | 2016 | World Journal of Gastroenterology2016，22，14： | 7 |
| 7 | Monitoring the frozen duration of Qinghai Lake using satellite passive microwave remote sensing low frequency data显示文摘The Qinghai Lake is the largest inland lake in China.The significant difference of dielectric properties between water and ice suggests that a simple method of monitoring the Qinghai lake freeze-up and break-up dates using satellite passive microwave remote sensing data could be used.The freeze-up and break-up dates from the Qinghai Lake hydrological station and the MODIS L1B reflectance data were used to validate the passive microwave remote sensing results.The validation shows that passive microwave remote sensing data can accurately monitor the lake ice.Some uncertainty comes mainly from the revisit frequency of satellite overpass.The data from 1978 to 2006 show that lake ice duration is reduced by about 14―15 days.The freeze-up dates are about 4 days later and break-up dates about 10 days earlier.The regression analyses show that,at the 0.05 significance level,the correlations are 0.83,0.66 and 0.89 between monthly mean air temperature(MMAT) and lake ice duration days,freeze-up dates,break-up dates,respectively.Therefore,inter-annual variations of the Qinghai Lake ice duration days can significantly reflect the regional climate variation. | CHE Tao LI Xin JIN Rui | 2009 | Chinese Science Bulletin2009，54，13： | 5 |
| 8 | Direct conversion of fructose-based carbohydrates to 5-ethoxymethylfurfural catalyzed by AlCl_3·6H_2O/BF_3·(Et)_2O in ethanol显示文摘Direct conversion of fructose-based carbohydrates to 5-ethoxymethylfurfural (EMF) catalyzed by Lewis acid in ethanol was investigated. It was found that BF3(Et)2O was favorable for 5-hydroxymethylfurfural (HMF) etherification to EMF. BF3(Et)2O combination with AlCl3 6H2O with the molar ratio of 1 was an effective catalyst system for synthesis of EMF from fructose-based carbohydrates. 55.0%, 45.4% and 23.9% of EMF yields were obtained from fructose, inulin and sucrose under optimized conditions, respectively. | Xiuquan Jia Jiping Ma Penghua Che Fang Lu Hong Miao Jin Gao Jie Xu | 2013 | Journal of Energy Chemistry2013，22，1： | 5 |
| 9 | Upregulation of human DNA binding protein A (dbpA) in gastric cancer cells显示文摘 | Guo-rong WANG Yan ZHENG Xiang-ming CHE Xin-yang WANG Jia-hui ZHAO Kai-jie WU Jin ZENG Chen-en PAN Da-lin HE | 2009 | Acta Pharmacologica Sinica2009，30，10： | 5 |
| 10 | Natatanuran frogs used the Indian Plate to step-stone disperse and radiate across the Indian Ocean显示文摘Investigating the evolutionary history of widespread higher taxa, subjected to multiple tectonic events, can provide evidence for or against various palaeogeographical models of early Earth history (1,2)Contemporary biotic distributions have been strongly influenced by events associated with the breakup of Gondwana into present-day Africa,Antarctica, Australia, South America,Madagascar and India, during the Late Mesozoic and Early Palaeogene (2)The fragmentation of Gondwana and subsequent tectonic drift ultimately allowed biotic exchanges between Laurasia and Gondwana [2,3], influencing the global distributions of many taxa. | Zhi-Yong Yuan Bao-Lin Zhang Christopher J.Raxworthy David W.Weisrock Paul M.Hime Jie-Qiong Jin Emily M.Lemmon Alan R.Lemmon Sean D.Holland Michelle L.Kortyna Wei-Wei Zhou Min-Sheng Peng Jing Che Elizabeth Prendini | 2019 | National Science Review2019，6，1： | 5 |
| 11 | The evolution of microstructure and texture of AZ80 Mg alloy cup-shaped pieces processed by rotating backward extrusion显示文摘This study proposed an effective plastic deformation technique,rotating backward extrusion(RBE),for producing high performance AZ80 magnesium alloy cup-shaped pieces.The RBE process was carried on the Gleeble-3500 test machine at 653 K,and the conventional backward extrusion(CBE)was also conducted for comparison.A detailed microstructure analysis was performed using the optical microscopy(OM)and electron back-scatter diffraction(EBSD).The results shown that the equivalent strain and deformation uniformity of the cup pieces could be substantially increased by the RBE process compared with the CBE process.Furthermore,the RBE process could significantly improve the grain refining capacity and the proportion of dynamic recrystallization(DRX),of which the maximum reduction of grain size was 88.60%,and the maximum increase of DRX proportion was 55.30%in the cup bottom.The main deformation mechanism of the RBE process was the discontinuous DRX(DDRX),while the continuous DRX(CDRX)was also occurred in the cup transition.Compared with the CBE sample,the texture of the cup bottom was weakened for the RBE sample.The microhardness value of the RBE sample was higher than that of the CBE sample,which can be attributed to the grain refinement strengthening. | Xin Che Qiang Wang Beibei Dong Mu Meng Zhi Gao Kai Liu Jin Ma Fulai Yang Zhiming Zhang | 2021 | Journal of Magnesium and Alloys2021，9，5： | 4 |
| 12 | The Australasian frog family Ceratobatrachidae in China,Myanmar and Thailand:discovery of a new Himalayan forest frog clade显示文摘In an effort to study the systematic affinities and specieslevel phylogenetic relationships of the enigmatic anurans variably assigned to the genera Ingerana or Limnonectes(family Dicroglossidae),we col ected new molecular sequence data for five species including four Himalayan taxa,Limnonectes xizangensis,Lim.medogensis,Lim.alpina,Ingerana borealis and one southeast Asian species,I.tasanae,and analyzed these together with data from previous studies involving other ostensibly related taxa.Our surprising results demonstrate unequivocal y that Lim.xizangensis,Lim.medogensis and Lim.alpina form a strongly supported clade,the sister-group of the family Australasian forest frog family Ceratobatrachidae.This discovery requires an expansion of the definition of Ceratobatrachidae and represents the first record of this family in China.These three species are distinguished from the species of Ingerana and Limnonectes by the:(1)absence of interdigital webbing of the foot,(2)absence of termina discs on fingers and toes,(3)absence of circumargina grooves on the fingers and toes,and(4)absence of tarsal folds.Given their phylogenetic and morphologica distinctiveness,we assign them to the oldest available generic name for this clade,Liurana Dubois 1987,and transfer Liurana from Dicroglossidae to the family Ceratobatrachidae.In contrast,Ingerana tasanae was found to be clustered with strong support with the recently described genus Alcalus(Ceratobatrachidae),asmall clade of otherwise Sundaic species;this constitutes a new record of the family Ceratobatrachidae for Myanmar and Thailand.Final y,Ingerana borealis clustered with the 'true' Ingerana(family Dicroglossidae),for which the type species is I.tenasserimensis. | Fang YAN Ke JIANG Kai WANG Jie-Qiong JIN Chatmongkon SUWANNAPOOM Cheng LI Jens V.VINDUM Rafe M.BROWN Jing CHE State Key Laboratory of Genetic Resources and Evolution,Kunming Institute of Zoology,Chinese Academy of Sciences Southeast Asia Biodiversity Research Institute,Chinese Academy of Sciences Sam Noble Oklahoma Museum of Natural History and Department of Biology,University of Oklahoma School of Agriculture and Natural Resources,University of Phayao Imaging Biodiversity Expedition Department of Herpetology,California Academy of Sciences Biodiversity Institute and Department of Ecology and Evolutionary Biology,1345 Jayhawk Blvd,University of Kansas | 2016 | Zoological Research2016，37，1： | 4 |
| 13 | HEIHE WATERSHED ALLIED TELEMETRY EXPERIMENTAL RESEARCH (HiWATER): Scientific Objectives and Experimental Design显示文摘 | Li Xin Cheng Guodong Liu Shaomin Xiao Qing Ma Mingguo Jin Rui Che Tao Liu Qinhuo Wang Weizhen Qi Yuan Wen Jianguang Li Hongyi Zhu Gaofeng Guo Jianwen Ran Youhua Wang Shuoguo Zhu Zhongli Zhou Jian Hu Xiaoli Xu Ziwei | 2013 | Bulletin of the American Meteorological Society2013，，8： | 3 |
| 14 | Multispectral Plasmon of Anisotropic Core-shell Gold Nanorods@SiO2: Dual-band Absorption Enhancement with Coupling Dye Molecules显示文摘 | CHE Yuping WANG Yang YOU Tingting CHANG Huaiqiu YIN Penggang ZHAI Jin | 2018 | Chemical Research in Chinese Universities2018，34，5： | 3 |
| 15 | Development of DWDM Filter Manufacture显示文摘DWDM technology is developing rapidly. Thin film narrow bandpass filter plays an important role in this field. This article presents some achievements in developing the DWDM narrow bandpass filters and also describes the results achieved by us. | MIAO Tong qun,JIN Nan shan, ZHOU Fang che, QIAN Long sheng (Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130022, China) | 2001 | 光学精密工程2001，9，5： | 3 |
| 16 | Insights into the enhanced structure stability and electrochemical performance of Ti^(4+)/F^(-) co-doped P2-Na_(0.67)Ni_(0.33)Mn_(0.67)O_(2) cathodes for sodium ion batteries at high voltage显示文摘P2-Na_(0.67)N_(i0.33)Mn_(0.67)O_(2)is considered as a promising cathode material for sodium-ion battery (SIBs)because of its high capacity and discharge potential.However,its practical use is limited by Na^(+)/vacancy ordering and P2-O2 phase transition.Herein,a Ti^(4+)/F^(-) co-doping strategy is developed to address these issues.The optimal P2-Na_(0.67)Ni_(0.33)Mn_(0.37)Ti_(0.3)O_(1.9)F_(0.1) exhibits much enhanced sodium storage performance in the high voltage range of 2.0–4.4 V,including a cycling stability of 77.2%over 300cycles at a rate of 2 C and a high-rate capability of 87.7 m Ah g^(-1) at 6 C.Moreover,the P2-Na_(0.67)Ni_(0.33)Mn_(0.37)Ti_(0.3)O_(1.9)F_(0.1) delivers reversible capacities of 82.7 and 128.1 m Ah g^(-1) at-10 and 50℃ at a rate of 2 C,respectively.The capacity retentions over 200 cycles at-10℃ is 94.2%,implying more opportunity for practical application.In-situ X-ray diffraction analysis reveals that both P2-O2 phase transitions and Na^(+)/vacancy ordering is suppressed by Ti^(4+)/F^(-) co-doping,which resulting in fast Na^(+) diffusion and stable phase structure.The hard carbon//P2-Na_(0.67)Ni_(0.33)Mn_(0.37)Ti_(0.3)O_(1.9)F_(0.1) full cell exhibits a high energy density of 310.2 Wh kg^(-1) and remarkable cyclability with 82.1%retention after 300 cycles at 1 C in the voltage range of 1.5–4.2 V.These results demonstrate that the co-doping Ti^(4+)/F^(-) is a promising strategy to improve the electrochemical properties of P2-Na_(0.67)Ni_(0.33)Mn_(0.67)O_(2),providing a facile tactic to develop high performance cathode materials for SIBs. | Pengfei Zhou Jing Zhang Zhennan Che Zuhao Quan Ju Duan Xiaozhong Wu Junying Weng Jinping Zhao Jin Zhou | 2022 | Journal of Energy Chemistry2022，31，4： | 3 |
| 17 | Subtyping of type A influenza by sequencing the variable regions of HA gene specifically amplified with RT-PCR显示文摘The outbreak of a novel influenza A(H1N1) virus across the globe poses a threat to human health.It is of paramount importance to develop a rapid,reliable and inexpensive diagnostic procedure.Based on the bioinformatic information from public database,primers specific for influenza A virus surface protein haemagglutinin(HA) of several subtypes(including H1,H2,H3,H5,H7 and H9) were designed.Primer-specific PCR products were subjected to sequencing for accurately distinguishing H1 and H3 subtypes from others.This sequencing-based detection method will not only be applied to rapid detection and simultaneous subtype identification of new influenza A virus H1N1,but also provide the strategies to monitor other new types ofinfluenza virus with explosive potential. | YAN An DING GuoHui ZHOU ZhenFeng DONG Hui ZHANG YaKun ZHU Lei HE YunGang ZHANG GuoQing LI YiXue SUN Bing HUANG Zhong LAN Ke JIN Li WANG HongYan WANG XiaoNing YANG Zhong ZHONG Yang DAI JianXin GUO YaJun WANG Hao CHE XiaoYan WU Fan YUAN ZhenGan ZHANG Xi CAO ZhiWei ZHOU XiaoNong ZHOU JiaHai MA ZhiYong TONG GuangZhi ZHAO GuoPing JIN WeiRong XIONG Hui | 2009 | Chinese Science Bulletin2009，54，13： | 3 |
| 18 | The mutation network for the hemagglutinin gene from the novel influenza A (H1N1) virus显示文摘A mutation network for the hemagglutinin gene(HA) of the novel type A(H1N1) influenza virus was constructed.Sequence homology analysis indicated that one HA sequence type from the viruses mainly isolated from Mexico was likely the original type in this epidemic.Based on the 658A and 1408T mutations in HA,the viruses evolving into this epidemic were divided into three categories,the Mexico,the transitional and the New York type.The three groups of viruses presented distinctive clustering features in their geographic distributions. | HE YunGang DING GuoHui BIAN Chao HUANG Zhong LAN Ke SUN Bing WANG XueCai LI YiXue WANG HongYan WANG XiaoNing YANG Zhong ZHONG Yang JIN WeiRong XIONG Hui DAI JianXin GUO YaJun WANG Hao CHE XiaoYan WU Fan YUAN ZhenAn ZHANG Xi CAO ZhiWei ZHOU XiaoNong ZHOU JiaHai MA ZhiYong TONG GuangZhi ZHAO GuoPing JIN Li | 2009 | Chinese Science Bulletin2009，54，13： | 3 |
| 19 | Herpetological phylogeographic analyses support a Miocene focal point of Himalayan uplift and biological diversification显示文摘The Himalaya are among the youngest and highest mountains in the world,but the exact timing of their uplift and origins of their biodiversity are still in debate.The Himalayan region is a relatively small area but with exceptional diversity and endemism.One common hypothesis to explain the rich montane diversity is uplift-driven diversification—that orogeny creates conditions favoring rapid in situ speciation of resident lineages.We test this hypothesis in the Himalayan region using amphibians and reptiles,two environmentally sensitive vertebrate groups.In addition,analysis of diversification of the herpetofauna provides an independent source of information to test competing geological hypotheses of Himalayan orogenesis.We conclude that the origins of the Himalayan herpetofauna date to the early Paleocene,but that diversification of most groups was concentrated in the Miocene.There was an increase in both rates and modes of diversification during the early to middle Miocene,together with regional interchange(dispersal)between the Himalaya and adjacent regions.Our analyses support a recently proposed stepwise geological model of Himalayan uplift beginning in the Paleocene,with a subsequent rapid increase of uplifting during the Miocene,finally giving rise to the intensification of the modern South Asian Monsoon. | Wei Xu Wen-Jie Dong Ting-Ting Fu Wei Gao Chen-Qi Lu Fang Yan Yun-He Wu Ke Jiang Jie-Qiong Jin Hong-Man Chen Ya-Ping Zhang David M.Hillis Jing Che | 2021 | National Science Review2021，8，9： | 3 |
| 20 | Permafrost changes in the Nanwenghe Wetlands Reserve on the southern slope of the Da Xing'anling‒Yile'huli mountains,Northeast China显示文摘The Nanwenghe Wetlands Reserve in the Yile'huli Mountains is a representative region of the Xing'an permafrost.The response of permafrost to climate change remains unclear due to limited field investigations.Thus,longer-term responses of the ground thermal state to climate change since 2011 have been monitored at four sites with varied surface characteristics:Carex tato wetland(P1)and shrub-C.tato wetland(P2)with a multi-year average temperatures at the depth of zero annual amplitude(T_(ZAA))of−0.52 and−1.19℃,respectively;Betula platyphylla-Larix gmelinii(Rupr.)Kuzen mixed forest(P3)with T_(ZAA) of 0.17℃,and;the forest of L.gmelinii(Rupr.)Kuzen(P4)with T_(ZAA) of 1.65℃.Continuous observations demonstrate that the ecosystem-protected Xing'an permafrost experienced a cooling under a warming climate.The temperature at the top of permafrost(TTOP)rose(1.8℃ per decade)but the TZAA declined(−0.14℃ per decade),while the active layer thickness(ALT)thinned from 0.9 m in 2012 to 0.8 m in 2014 at P1.Both the TTOP and TZAA increased(0.89 and 0.06℃ per decade,respectively),but the ALT thinned from 1.4 m in 2012 to 0.7 m in 2016 at P2.Vertically detached permafrost at P3 disappeared in summer 2012,with warming rates of+0.42 and+0.17℃ per decade for TTOP and T_(ZAA),respectively.However,up to date,the ground thermal state has remained stable at P4.We conclude that the thermal offset is crucial for the preservation and persistence of the Xing'an permafrost at the southern fringe. | HE Rui-Xia JIN Hui-Jun LUO Dong-Liang LI Xiao-Ying ZHOU Chuan-Fang JIA Ning JIN Xiao-Ying LI Xin-Yu CHE Tao YANG Xue WANG Li-Zhong LI Wei-Hai WEI Chang-Lei CHANG Xiao-Li YU Shao-Peng | 2021 | Advances in Climate Change Research2021，12，5： | 3 |
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