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Projection of future streamflow of the Hunza River Basin,Karakoram Range(Pakistan)using HBV hydrological model

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Journal of Mountain Science 2018年第10期15卷 2218-2235页

作者： Ayaz Fateh ALI xiao Cun-de zhang xiao-peng Muhammad ADNAN Mudassar IQBAL Garee KHAN State Key Laboratory of Cryospheric Science Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Land Surface and Resource Ecology Beijing Normal UniversityBeejing 100875China Key Laboratory of land Surface Process and Climate Change in Cold and Arid Regions Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 73o000China Department of Earth Sciences Karakoram International UniversityGilgit 15100Pakistan

Hydrologiska Byrans Vattenbalansavdeling(HBV) Light model was used to evaluate the performance of the model in response to climate change in the snowy and glaciated catchment area of Hunza River Basin. The study aimed to understand the temporal variation of streamflow of Hunza River and its contribution to Indus River System(IRS). HBV model performed fairly well both during calibration(R2=0.87, Reff=0.85, PBIAS=-0.36) and validation(R2=0.86, Reff=0.83, PBIAS=-13.58) periods on daily time scale in the Hunza River Basin. Model performed better on monthly time scale with slightly underestimated low flows period during bothcalibration(R2=0.94, Reff=0.88, PBIAS=0.47) and validation(R2=0.92, Reff=0.85, PBIAS=15.83) periods. Simulated streamflow analysis from 1995-2010 unveiled that the average percentage contribution of snow, rain and glacier melt to the streamflow of Hunza River is about 16.5%, 19.4% and 64% respectively. In addition, the HBV-Light model performance was also evaluated for prediction of future streamflow in the Hunza River using future projected data of three General Circulation Model(GCMs) i.e. BCC-CSM1.1, CanESM2, and MIROCESM under RCP2.6, 4.5 and 8.5 and predictions were made over three time periods, 2010-2039, 2040-2069 and 2070-2099, using 1980-2010 as the control period. Overall projected climate results reveal that temperature and precipitation are the most sensitiveparameters to the streamflow of Hunza River. MIROC-ESM predicted the highest increase in the future streamflow of the Hunza River due to increase in temperature and precipitation under RCP4.5 and 8.5 scenarios from 2010-2099 while predicted slight increase in the streamflow under RCP2.6 during the start and end of the 21 th century. However, BCCCSM1.1 predicted decrease in the streamflow under RCP8.5 due to decrease in temperature and precipitation from 2010-2099. However, Can ESM2 predicted 22%-88% increase in the streamflow under RCP4.5 from 2010-2099. The results of this study could

关键词： HBV Light model Hydrological modeling Hunza River Upper Indus Basin Snow and glacier-melt

Comprehensive interpretation of the Sedongpu glacier-related mass flows in the eastern Himalayan syntaxis

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Journal of Mountain Science 2022年第9期19卷 2469-2486页

作者： zhang xiao-peng HU Kai-heng LIU Shuang NIE Yong HAN Yun-zhong Institute of Mountain Hazards and Environment Chinese Academy of SciencesChengdu 610041China University of Chinese Academy of Sciences Beijing 100049China Beijing Institute of Spacecraft System Engineering Beijing 100094China

Glacier-related mass flows(GMFs)in the high-mountain cryosphere have become more frequent in the last decade,e.g.,the 2018 Sedongpu(SDP)GMFs in the *** forcing,thermal perturbation and heavy rainfall are common triggers of the *** the exact role of seimic forcing in the GMF formation is poorly known due to scarity of observational data of real *** the evolution processes of the GMFs and the detachment of the trunk glacier in SDP are reconstructed by using remote sensing techniques,including feature-tracking of multi-source optical satellite imagery and visual *** reconstruction demonstrates that the high frequency of GMF events in SDP after the Milin earthquake on 18 November 2017 was mainly attributed to the earthquake-induced glacial stress changes and *** post-earthquake velocity of the trunk glacier is about three times of that in December 2016 and December *** median glacier-surface velocity raised to 0.32 m d-1between November 2017 and June 2018,being 14%-77%higher than that of pre-earthquake,which is initiated by the seismic forcing and then aggravated by additional loading of ice/rock avalanches,infiltration of liquid water,progressively crevassed glacier,and local compressional *** surge motion of the trunk glacier resulted from high temperature and heavy precipitation between July and September *** infer that the trunk glacier is more sensitive to the thermal perturbation after the Milin earthquake,which is the predominant cause in sudden surge *** findings reveal comprehensive mechanisms of quakeinduced,low-angle,glacial detachment and multisource-driven GMF in the Himalayas.

关键词： Glacier-related mass flow(GMF) Milin earthquake Glacial speedup Glacier detachment Ice/rock avalanche

Quantitative assessment of the impact of earthquakeinduced geohazards on natural landscapes in Jiuzhaigou Valley

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Journal of Mountain Science 2019年第2期16卷 441-452页

作者： HU Xu-dong HU Kai-heng zhang xiao-peng WEI Li TANG Jin-bo Key Laboratory of Mountain Hazards and Earth Surface Processes Chinese Academy of Sciences Institute of Mountain Hazards and Environment Chinese Academy of Sciences University of Chinese Academy of Sciences

Many natural landscapes that lie in high mountain regions are highly susceptible to geological hazards, and their values and integrity are strongly threatened by the hazards. A preliminary framework was proposed to undertake a quantitative assessment of the impact of earthquake-induced geological hazards on the natural landscapes. Four factors reflecting the aesthetic value, ecological value, integrity of landscapes were selected to assess their vulnerability. The impact of earthquake-induced geological hazards on the landscapes is quantitatively expressed as the product of their vulnerability and resilience. The assessment framework was applied to Jiuzhaigou Valley which was severely struck by the Ms 7.0 earthquake on August 8, 2017. Field survey, satellite image interpretation, high-resolution DEM and unmanned aerial vehicle(UAV) reconnaissance were used to retrieve the values of the assessment factors. Twenty seven World Heritage Sites in the valley strongly influenced by the earthquakeinduced geohazards were evaluated. The impact values of two sites of them(Sparking Lake and Nuorilang Waterfall) are up to 8.24 and 4.65, respectively, and their natural landscapes were greatly damaged. The assessment results show a good agreement with the actual damages of the heritage sites.

关键词： Natural landscapes assessment Jiuzhaigou earthquake Earthquake-induced geohazards World Heritage Sites

Local Environmental Dependence of Galaxy Properties in a Volume-Limited Sample of Main Galaxies

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Chinese Journal of Astronomy and Astrophysics 2007年第5期7卷 639-648页

作者： Xin-Fa Deng Ji-Zhou He Qun zhang xiao-Xia Qian peng Jiang Yong Xin School of Science Nanchang University Nanchang 330031

Using a volume-limited sample of Main Galaxies from SDSS Data Release 5, we investigate the dependence of galaxy properties on local environment. For each galaxy, a local three-dimensional density is calculated. We find that the galaxy morphological type depends strongly on the local environment; galaxies in dense environments have predominantly early type morphologies. Galaxy colors have only a weak dependence on the environment. This puts an important constraint on the process of galaxy formation.

关键词： galaxy distances and redshifts -- galaxies statistics

Variance of Solid-state Pt…Pt Interactions in Luminescent Cyclometalated Cationic Pt(Ⅱ)-isocyanide Complexes

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Chinese Journal of Structural Chemistry 2020年第4期39卷 709-717页

作者： QI xiao-Wei WU Shui-Xing HAN Li-Zhi SHI Zai-Feng zhang xiao-peng Key Laboratory of Water Pollution Treatment&Resource Reuse of Hainan Province College of Chemistry and Chemical EngineeringHainan Normal UniversityHaikou 571158China Department of Chemistry Northeast Normal UniversityChangchun 130024China

Polymorphic structures of cyclometalated cationic Pt(Ⅱ)-isocyanide complexes(-)-1[Pt((−)-NNC)(Dmpi)]Cl with different packing modes can be isolated *** this paper,a series of solid-state powders with variable colors(yellow,orange and red)have been obtained from the evaporation of complex(-)-1 in different *** crystallinity,thermogravimetric properties,absorption,luminescence and excited state lifetimes have been *** addition,intermolecular Pt…Pt interactions in the optimized configurations of different aggregates have been explored,and calculations of frontier molecular orbitals of monomer,dimer,trimer and tetramer have been carried out.

关键词： Pt(Ⅱ)complex luminescence Pt…Pt interactions density functional theory(DFT)

Loupe-assisted versus microscopic varicocelectomy： s there an intraoperative anatomic difference？

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Asian Journal of Andrology 2014年第1期16卷 112-114页

作者： Hao zhang xiao-peng Liu xiao-Jian Yang Wen-Tao Huang Xing-Xing Ruan Heng-Jun xiao Liao-Yuan Li Xin Gao Yan zhang Department of Urology The Third Affiliated Hospital of Sun Yat-sen University Guangzhou China

The aim of this study was to compare the intraoperative difference in anatomic details between Ioupe-assisted and microscopic varicocelectomy within the same spermatic cord. Between April 2011 and August 2011, 26 men with 33 sides containing grade 2-3 varicocele were enrolled in this study. First, one surgeon performed the open inguinal varicocelectomy under x 3.5 Ioupe magnification. The presumed vascular channels and lymphatics were isolated and marked without ligation. Another surgeon then microsurgically dissected and checked the same spermatic cord using an operating microscope to judge the results in terms of the ligation of the internal spermatic veins and the preservation of the arteries and lymphatics. There were significant differences in the average number of internal spermatic arteries （1.51 vs 0.97）, internal spermatic veins （5.70 vs 4.39） and lymphatics （3.52 vs 1.61） between the microscope and Ioupe-assisted procedures （P 〈 0.001, P 〈 0.001, P 〈 0.001, respectively）. Meanwhile, in varicocele repair with Ioupe magnification, an average of 1.30 β± 1.07 （43/33） internal spermatic veins per side were missed, among the overlooked veins, 1.12 ± 0.93 （37/33） were adhered to the preserved testicular artery, as well as 0.55 ± 0.79 lymphatics and 0.36 ± 0.55 arteries that were to be ligated. In conclusion, microscopic varicocelectomy could preserve more internal spermatic arteries and lymphatics and could ligate more veins than the Ioupe-assisted procedure. To some degree, Ioupe magnification is inadequate for the reliable identification and dissection of the tiny vessels of the spermatic cord, as most of the overlooked veins were adhered to the preserved testicular artery.

关键词： intraoperative difference Ioupe-assisted microscopic varicocelectomy

Immunotoxicological Evaluation of Wheat Genetically Modified with TaDREB4 Gene on BALB/c Mice

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Biomedical and Environmental Sciences 2013年第8期26卷 663-670页

作者： LIANG Chun Lai zhang xiao peng SONG Yan JIA Xu Dong Key Laboratory of Food Safety Risk Assessment Ministry of Health (China National Center for Food Safety Risk Assessment)

Objective To evaluate the immunotoxicological effects of genetically modified wheat with TaDREB4 gene in female BALB/c mice. Methods Female mice weighing 18-22 g were divided into five groups （10 mice/group）, which were set as negative control group, common wheat group, parental wheat group, genetically modified wheat group and cyclophosphamide positive control group, respectively. Mice in negative control group and positive control group were fed with AIN93G diet, mice in common wheat group, non-genetically modified parental wheat group and genetically modified wheat group were fed with feedstuffs added corresponding wheat （the proportion is 76%} for 30 days, then body weight, absolute and relative weight of spleen and thymus, white blood cell count, histological examination of immune organ, peripheral blood lymphocytes phenotyping, serum cytokine, serum immunoglobulin, antibody plaque-forming cell, serum half hemolysis value, mitogen-induced splenocyte proliferation, delayed-type hypersensitivity reaction and phagocytic activities of phagocytes were detected. Results No immunotoxicological effects related to the consumption of the genetically modified wheat were observed in BALB/c mice when compared with parental wheat group, common wheat group and negative control group. Conclusion From the immunotoxicological point of view, results from this study demonstrate that genetically modified wheat with TaDREB4 gene is as safe as the parental wheat.

关键词： Genetically modified wheat Immunotoxicological effects BALB/c mice

A Subchronic Toxicity Study on Lactobacillus Fermentum GM 090 in Rat

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Biomedical and Environmental Sciences 2013年第8期26卷 680-683页

作者： JIA Xu Dong zhang xiao peng LI Ning Key Laboratory of Food Safety Risk Assessment of Ministry of Health China National Center for Food Safety Risk Assessment

Lactobacillus fermentum （L. fermentum） is one of seven species in the genus Lactobacillus[1]. With a long history of safe use in fermented food production, Lactobacillus is considered as one of the most beneficial probiotics[23]. The most well-known potential health benefit is improving digestion and immune function[4.s]. Other beneficial functions of Lactobacillus strains include managing lactose intoleranceIs], lowering cholesterol and blood pressureIs], reducing inflammation[~], and prevention of cancerIs＇7]. L. fermentum is usually found during malt whisky fermentation]8]. L. fermentum CP34 was found to have the significant effect of decreasing the serum antigen-specific IgE levels compared to a control group[9].

关键词： A Subchronic Toxicity Study on Lactobacillus Fermentum GM 090 in Rat body GM

A novel mutation in ACS11 leads to androecy in cucumber

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Journal of Integrative Agriculture 2023年第11期22卷 3312-3320页

作者： WANG Jie LI Shuai CHEN Chen zhang Qi-qi zhang Hui-min CUI Qing-zhi CAI Guang-hua zhang xiao-peng CHAI Sen WAN Li YANG Xue-yong zhang Zhong-hua HUANG San-wen CHEN Hui-ming SUN Jin-jing College of Horticulture Qingdao Agricultural UniversityQingdao 266109P.R.China State Key Laboratory of Vegetable Biobreeding Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing 100081P.R.China Hunan Vegetable Research Institute Hunan Academy of Agricultural SciencesChangsha 410125P.R.China Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs Agricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518124P.R.China Chinese Academy of Tropical Agriculture Sciences Haikou 571101P.R.China College of Horticulture Hunan Agricultural UniversityChangsha 410128P.R.China

Sex determination in plants gives rise to unisexual flowers. A better understanding of the regulatory mechanism underlying the production of unisexual flowers will help to clarify the process of sex determination in plants and allow researchers and farmers to harness heterosis. Androecious cucumber(Cucumis sativus L.) plants can be used as the male parent when planted alongside a gynoecious line to produce heterozygous seeds, thus reducing the cost of seed production. The isolation and characterization of additional androecious genotypes in varied backgrounds will increase the pool of available germplasm for breeding. Here, we discovered an androecious mutant in a previously generated ethyl methanesulfonate(EMS)-mutagenized library of the cucumber inbred line ‘406’. Genetic analysis, whole-genome resequencing, and molecular marker-assisted verification demonstrated that a nonsynonymous mutation in the ethylene biosynthetic gene 1-AMINOCYCLOPROPANE-1-CARBOXYLATE SYNTHASE 11(ACS11) conferred androecy. The mutation caused an amino acid change from serine(Ser) to phenylalanine(Phe) at position 301(S301F). In vitro enzyme activity assays revealed that this S301F mutation leads to a complete loss of enzymatic activity. This study provides a new germplasm for use in cucumber breeding as the androecious male parent, and it offers new insights into the catalytic mechanism of ACS enzymes.

关键词： cucumber androecy ethylene marker-assisted breeding