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| 1 | Diurnal freeze/thaw cycles of the ground surface on the Tibetan Plateau显示文摘The exchange of energy and water between the lithosphere and atmosphere mainly takes place at the ground surface. Therefore, freeze/thaw condition at the ground surface is an important factor in ex- amining the interactions between the land surface and atmosphere. Based on the observation data obtained by CEOP/CAMP-Tibet, the diurnal freeze/thaw cycles of the ground surface near Naqu, central Tibetan Plateau was preliminarily analyzed. The results show that the surface layer was completely frozen for approximately one month. However, the time that the ground surface experienced diurnal freeze/thaw cycles was about 6 months. The high frequency of freeze/thaw cycles at the ground surface significantly influences water and energy exchanges between ground and atmosphere over half a year. The interaction processes between the ground and atmosphere under different soil conditions (such as complete thaw, complete freeze and diurnal freeze/thaw cycles) are issues worthy of further examina- tion. | YANG MeiXue YAO TanDong GOU XiaoHua HIROSE Nozomu FUJII Hide Yuki HAO LiSheng D. F. LEVIA | 2007 | Chinese Science Bulletin2007，52，1： | 44 |
| 2 | Tree ring based streamflow reconstruction for the Upper Yellow River over the past 1234 years显示文摘We established a Juniperus przewalski tree ring width chronology, based on tree ring cores collected from the A’nyêmaqên Mountains. Statistical analysis showed that the chronology was highly correlated with instrumental streamflow records from previous August to current July from the Tangnaihai Station in the upper reaches of the Yellow River, with a correlation coefficient of 0.656. Streamflow for the upper reaches of the Yellow River was reconstructed for the past 1234 years. Low flow periods for the 11-year averaged streamflow reconstruction were definite as lower than mean plus 1 standard deviation, and high flow periods were higher than mean minus 1 standard deviation. Over the past 1234 years, high flows occurred 18 times, and low flows occurred 12 times. The main low flow periods were identified as AD 1140–1156, AD 1295–1309, AD 1473–1500, and AD 1820–1847, and the main high flow periods were identified as AD 846–873, and AD 1375–1400. Extremely low streamflow over the reconstruction period was seen during the late 15th century, coinciding with a widespread drought phenomenon, which took place in the northeastern Tibetan Plateau over the same period. Reconstructed streamflow shows significant low-frequency variability, which is in line with drought variability of neighboring regions, as inferred from tree rings and other proxies. Multi-taper spectral analysis suggests the existence of significant periods of 2–5, 22, 35–38, 55–62, and 114–227 years, particularly significant for cyclic variations of years 159 and 36. | GOU XiaoHua DENG Yang CHEN FaHu YANG MeiXue FANG KeYan GAO LinLin YANG Tao ZHANG Fen | 2010 | Chinese Science Bulletin2010，55，36： | 37 |
| 3 | A 457-year reconstruction of precipitation in the southeastern Qinghai-Tibet Plateau,China using tree-ring records显示文摘This paper presents a 457-year reconstruction of precipitation in the southeastern Qinghai-Tibet Plateau using tree-ring records.Tree-ring samples were collected from the Hengduan Mountains in the southeastern part of the Qinghai-Tibet Plateau,China.A nearly 500-year chronology was developed using tree-ring width records.Correlation analysis shows moisture is the main factor limiting tree growth in this region.Ring-widths were significantly positively correlated with the Palmer Drought Severity Index(PDSI) and precipitation in many months.The highest correlation coefficient was found between the annual growth of trees and precipitation from the previous September to the current June(0.738).Based on this relationship,we reconstructed the precipitation history from 1509 to 2006.The reconstruction explains 54.4%(Radj2=53.5%,N=49,F=56.12) of the actual precipitation variation during the calibration period(1958-2006).During the reliable period of the reconstruction(1549-2006),some low-frequency climate signals are included,indicating this region has been getting wetter in the last 20 years.The reconstruction documents six apparently dry and five pluvial periods and the 17th century dry period lasted longer than any other.When compared with other recent studies,this study and these earlier reconstructions show a similar trend in the variation of drought and pluvial.Further spatial correlation analysis confirms that the reconstructed precipitation adequately represents the rainfall history of the entire Hengduan Mountain area.The Multi-taper method,a type of spectral analysis,reveals that precipitation in this area had significant(P<0.01) spectral peaks at 3-5 a,60 a and 79-85 a. | GOU XiaoHua YANG Tao GAO LinLin DENG Yang YANG MeiXue CHEN FaHu | 2013 | Chinese Science Bulletin2013，58，10： | 16 |
| 4 | Decentralized wastewater treatment technologies and management in Chinese villages显示文摘在中国在农村区域对待污水的问题在最近的年里吸引了增加的注意。然而,仅仅,有的 6% 农村区域在 2010 底喷洒排水和废水处理系统。估计当前使用的技术是必要的以便在农村区域的污水处理能适当地被开发,到提供可靠、买得起的废水处理,在这些区域。我们评估了在各一直在操作至少一年了的 62 台设备上进行案例研究当前在农村区域使用的污水处理技术。我们的学习在 2009 和 2011 之间被执行,并且目的是在那经期期间估计状况并且估计在村庄里涉及分散的污水治疗的任何问题。我们发现那个分散的污水处理是村庄里的最流行的废水处理方法,并且最普通的主要处理技术在农村区域使用了,这是化粪池。我们的调查加亮需要为估计自河质量建立标准,包括目标污染物质的一个范围。我们的结果也证明自河应该被再使用在不同区域满足本地环境要求,特别在生态地敏感的区域。 | Xuesong GUO Zehang LIU Meixue CHEN Junxin LIU Min YANG | 2014 | Frontiers of Environmental Science & Engineering2014，8，6： | 13 |
| 5 | Biotransformation of nonylphenol ethoxylates during sewage treatment under anaerobic and aerobic conditions显示文摘ethoxylates (NPEO ) 在连续厌氧的污水处理期间与污水的氧气的治疗相比的 nonylphenol 的 Biotransformation 在 90 d 的经期上与 23 μ m ol/L 刺了技术 NPEO。NPEO 的立即的降级在厌氧、氧气的条件下面被观察,显示酶和细菌为 NPEO 要求降级在氧气、厌氧的污泥富有地存在。两个处理完成了高移动(>92%) 刺的 NPEO9 混合。液体层析团光谱测定(最小公倍数)分析显示出积累在的那短链的 NPEO ( NPEO1 NPEO3 )厌氧( 2.01 2.56 μm ol/L )并且氧气( 1.62 2.03 μm ol/L )自河,与 nonylphenol ( NP )( 0.24 0.31 μm ol/L )作为在厌氧的自河的另一组代谢物,并且在氧气的自河的 nonylphenoxy 羧化物( NPEC )( 2.79 3.30 μm ol/L )。在厌氧的污泥的 NP 和在二个反应堆的污泥的 NPEO1 3 的重要累积被观察。这些结果显示在常规处理过程控制这些有害代谢物是困难的。污泥样品的使中毒的坡度胶化电气泳动侧面支持 NPEO 降级细菌可能是主导的土生土长的种类的推测。 | ZHANG Jing YANG Min ZHANG Yu CHEN Meixue | 2008 | Journal of Environmental Sciences2008，20，2： | 6 |
| 6 | Variations in Soil Temperature at BJ Site on the Central Tibetan Plateau显示文摘The temporal and spatial variation in soil temperature play a significant role in energy and water cycle between land surface and atmosphere on the Tibetan Plateau.Based on the observed soil temperature data(hourly data from 1 January 2001 to 31 December 2005)obtained by GAME-Tibet,the diurnal,seasonal and interannual variations in soil temperature at BJ site(31.37°N,91.90°E;4509 m a.s.l.)near Naqu in the central Tibetan Plateau were analyzed.Results showed that the average diurnal variation in soil temperature at 4 and 20 cm depth can be described as sinusoidal curve,which is consistent with the variation of solar radiation. However,the average diurnal variation in soil temperature under 60 cm was very weak.The average diurnal amplitude in soil temperature decreased by the exponential decay function with the increase of soil depth(R2=0.92,p<0.01).It is demonstrated that the average diurnal maximum soil temperature decreased by the exponential decay function with the increase of soil depth(R2=0.78,p<0.01).In contrast, the average diurnal minimum soil temperature increased by the exponential grow function with increasing of soil depth(R2=0.86,p<0.01).There were a linear negative correlation between the average annual maximum Ts and soil depth(R2=0.96, p<0.01),a logarithmic function relationship between the average annual minimum soil temperature and soil depth(R2=0.92,p<0.01).The average seasonal amplitude in soil temperature followed the exponential decay function with the increase of soil depth(R2=0.98,p<0.01).The mean annual soil temperature in each layer indicated a warming trend prominently.During the study period,the mean annual soil temperature at 4,20,40,60,80,100,130, 160,200 and 250 cm depth increased by 0.034,0.041, 0.061,0.056,0.062,0.050,0.057,0.051,0.047 and 0.042°C/a,respectively. | WAN Guoning YANG Meixue WANG Xuejia | 2012 | Journal of Mountain Science2012，9，2： | 6 |
| 7 | Review on simulation of land-surface processes on the Tibetan Plateau显示文摘The Tibetan Plateau(TP) has powerful dynamics and thermal effects, which makes the interaction between its land and atmosphere significantly affect climate and environment in the regional or global area. By retrospecting the latest research progress in the simulation of land-surface processes(LSPs) over the past 20 years, this study discusses both the simulation ability of land-surface models(LSMs) and the modification of parameterization schemes from two perspectives, the models' applicability and improved parameterization schemes. Our review suggests that different LSMs can well capture the spatiotemporal variations of the physical quantities of LSPs; but none of them can be fully applied to the plateau, meaning that all need to be revised according to the characteristics specific to the TP. Avoiding the unstable iterative computation and determining the freeze-thaw critical temperature according to the thermodynamic equilibrium equation, the unreasonable freeze-thaw parameterization scheme can be improved. Due to the complex underlying surface of the TP, no parameterization scheme of roughness length can well simulate the various characteristics of the turbulent flux over the TP at different temporal scales. The uniform soil thermodynamic and hydraulic parameterization scheme is unreasonable when it is applied to the plateau, as a result of the strong soil heterogeneity. There is little research on the snow-cover process so far,and the improved scheme has no advantage over the original one due to the lack of some related physical processes. The constant interaction among subprocesses of LSPs makes the improvement of a multiparameterization scheme yield better simulation results. According to the review of existing research, adding high-quality observation stations, developing a parameterization scheme suitable for the special LSPs of the TP, and adjusting the model structures can be helpful to the simulation of LSPs on the TP. | Rui Chen MeiXue Yang XueJia Wang GuoNing Wan | 2019 | Research in Cold and Arid Regions2019，11，2： | 2 |
| 8 | Elevated miR-10a-5p facilitates cell cycle and restrains adipogenic differentiation via targeting Map2k6 and Fasn,respectively显示文摘miRNAs are a small class of noncoding RNAs that perform biological functions by regulating the stability or translation of target genes in various biological processes.This study illustrated the role of miR-10a-5p,which is relatively enriched in adipose tissues,using primary mouse preadipocytes as model.With elevated miR-10a-5p expression,the proliferative ability of mouse preadipocytes was significantly enhanced,indicated by increased EdU+cells and G1/S transition,accompanied by upregulated Cyclin B,Cyclin D and PCNA and downregulated p21 and p27.Meanwhile,the adi-pogenic differentiation was significantly attenuated by elevated miR-10a-5p,supported by Oil Red 0 staining and suppressed PPARγand aP2 expression.Furthermore,Map2k6 and Fasn were pre-dicted to be the target genes of miR-10a-5p in silico,and dual luciferase reporter assay confirmed the direct targeting effects.Western blot analysis results showed that miR-10a-5p specially reduced Map2k6 expression at the proliferative stage without affecting Fasn expression,while significantly restrained Fasn expression with unchanged Map2k6 expression during adipogenic differentiation.Taken together,these results revealed a potential role of miR-10a-5p in adipogenesis and in the treatment of obesity. | Xiaoyu Wang Huifang Zhang Meixue Xu Xin'E Shi Gongshe Yang Shiduo Sun Xiao Li | 2020 | Acta Biochimica et Biophysica Sinica2020，52，11： | 2 |
| 9 | Permafrost degradation and its environmental effects on the Tibetan Plateau: A review of recent research显示文摘 | Meixue Yang Frederick E. Nelson Nikolay I. Shiklomanov Donglin Guo Guoning Wan | 2010 | Earth Science Reviews2010，，1： | 1 |
| 10 | Desertification and its relationship with permafrost degradation in Qinghai-Xizang (Tibet) plateau显示文摘 | Meixue Yang Shaoling Wang Tandong Yao Xiaohua Gou Anxin Lu Xuejun Guo | 2004 | Cold Regions Science and Technology2004，，1： | 1 |
| 11 | ENSO events recorded in the Guliya ice core 显示文摘 | Yang Meixue Yao Tandong He Yuanqing | 2000 | Climatic Change2000，47，： | 1 |
| 12 | Desertifica- tion and its relationship with permafrost degradation in Qinghai- Xizang (Tibet) Plateau显示文摘 | Yang Meixue Wang Shaoling Yao Tandong | 2004 | Cold Regions Science and Technol- ogy2004，39，1： | 1 |
| 13 | ENSO events recorded in the Guliya ice core 显示文摘 | Yang Meixue Yao Tandong He Yuanqing and Thompson L G | 2000 | Journal of Climate2000，47，： | 1 |
| 14 | Desertification and its relationship with permafrost degradation in Qinghai-Xizang(Tibet) Plateau显示文摘 | Yang Meixue Wang Shaoling Yao Tandong | 2004 | Cold Regions Science and Technology2004，39，1： | 1 |
| 15 | The soil moisture distribution, thawing-freezing processes and their effects on the seasonal transition on the Qinghai-Xizang (Tibetan) Plateau显示文摘 | Meixue Yang Tandong Yao Xiaohua Gou | 2003 | Journal of Asian Earth Sciences2003，21，： | 1 |
| 16 | Permafrost degradation and its environmental effects on the Tibetan Plateau:A review of recent research显示文摘 | Yang Meixue Nelson F E Shiklomanov N I | 2010 | Earth-Science Reviews2010，103，1： | 1 |
| 17 | Permafrost degradation and its environmental effects on the Tibetan Plateau: A review of recent research显示文摘 | Meixue Yang Frederick E. Nelson Nikolay I. Shiklomanov Donglin Guo Guoning Wan | 2010 | Earth Science Reviews2010，，1： | 1 |
| 18 | Sensible and latent heat flux response to diurnal variation in soil surface temperature and moisture under different freeze/thaw soil conditions in the seasonal frozen soil region of the central Tibetan Plateau显示文摘 | Guo Donglin Yang Meixue Wang Huijun | 2011 | Environmental Earth Sciences2011，63，： | 1 |
| 19 | Estimating the criterion for determining water vapour sources of summer precipitation on the northern Tibetan Plateau显示文摘 | Yang Meixue Yao Tandong Wang Huijun | 2006 | Hydrological Processes2006，20，： | 1 |
| 20 | Permafrost degradation and its environmental effects on the Tibetan Plateau: A review of recent research显示文摘 | Yang Meixue Nelson Frederick E Shiklomanov N I | 2010 | Earth-Science Reviews2010，103，1： | 1 |
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