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| 1 | 博斯腾湖流域山区地表径流对近期气候变化的响应显示文摘近年来,在全球和区域气候变化影响下,新疆博斯腾湖主要产流区开都河出山径流呈现异常波动,引起气候变化研究的关注。鉴于产流区复杂地形和径流补给特征以及传统观测资料的不足,借助雷达、微波及可见光等多源遥感数据从山区降水、积雪和冰川等方面与出山径流变化关系进行比较来揭示径流突变原因。结果表明,产流区平均径流深与降水量关系的转变是引起出山径流异常波动直接原因;进一步的冰川变化分析显示,径流深的波动主要由冰川融水径流变化引起:20世纪80年代中期后的温度上升加速了山顶冰川消融,导致1987~2002年的径流增加和湖泊水位升高;1984~2000年间,流域山顶冰川面积消退近40%,随着分布在较低海拔,对温度升高最敏感的中小冰川的消失,冰雪消融带来的径流增加效应开始减弱;2002年后,在流域气温、降水等变化并不显著的情况下,出山径流量却急剧降低,反映了特定冰川分布条件地区在气候变暖中融水径流先升后降的现象。 | 孙占东 Christian Opp 王润 高前兆 | 2010 | 山地学报2010，28，2： | 16 |
| 2 | 胡杨冠幅对塔里木河下游应急生态输水的响应显示文摘以塔里木河下游10次生态输水的效果为背景,根据近5 a在塔里木河下游阿拉干断面的大量野外调查数据,分析了胡杨冠幅对应急生态输水的响应。结果显示:随着输水次数的增加,胡杨冠幅呈梯度变化的趋势,输水对增加胡杨叶量和活枝有一定的促进作用,不同冠幅级的胡杨主要分布在距河道200 m的范围,且其分布都与离河道距离呈显著负相关关系,由于离河道距离的不同,胡杨冠幅对输水响应也不一样;总体趋势为,随着离河道距离(地下水埋深)的增加,胡杨冠幅变化幅度不明显。 | 玉米提.哈力克 塔依尔江.艾山 艾里西尔.库尔班 Bernd Cyffka Christian Opp | 2011 | 东北林业大学学报2011，39，9： | 16 |
| 3 | 塔里木河下游阿拉干断面胡杨林空间分布特征及其影响因素显示文摘通过小尺度生态监测与遥感数据分析获取塔里木河下游荒漠河岸林现状信息,集中对阿拉干断面设立的100hm2长期监测样方内的胡杨树进行了详细的调查,对该断面胡杨林空间分布特征及其影响因素进行了分析。研究结果表明:塔里木河下游的胡杨具有伴河生长的特性;随着离河距离的增加,胡杨株数呈递减趋势;大部分胡杨主要分布在离河道200m范围内,且其分布都与离河道距离呈显著负相关关系;与此同时随着离河岸距离增加,胡杨的密度也同样呈现降低规律。不同地下水埋深条件下生长的胡杨总体状况显示,地下水埋深,即与河道距离的近远是影响胡杨分布最重要的因素之一。 | 塔依尔江·艾山 玉米提·哈力克 艾尔肯·艾白不拉 Bernd Cvffka Christian Opp | 2011 | 干旱区资源与环境2011，25，12： | 10 |
| 4 | 塔里木河下游输水恢复过程中胡杨生长对地下水位的响应显示文摘通过近几年对塔里木河下游3个典型断面的胡杨各项生态指标的实地监测,分析了输水恢复过程中胡杨生长对地下水位的响应程度。研究表明:(1)河岸胡杨林生长与地下水埋深有密切的关系,通过10次生态输水,下游河道沿岸的地下水得到补充,水位明显抬升,胡杨长势也随着地下水位的抬升有不同程度的好转。(2)地下水位愈深,胡杨的干旱胁迫程度愈强。横向上,胡杨对生态输水的响应随着河道距离的增加逐渐减弱;纵向上,从上段至下段胡杨生长对输水的响应范围逐渐减小。(3)在输水河道两侧过水湿润岸滩,虽有胡杨实生苗零星出现,但就目前输水方式,还无法实现胡杨大面积繁殖更新。 | 玉米提.哈力克 柴政 艾尔肯.艾白不拉 塔依尔江.艾山 Bernd Cyffka Christian Opp | 2011 | 水土保持通报2011，31，5： | 6 |
| 5 | 经验正交函数方法和TRMM数据对长江流域降水模式与极端水文过程的研究显示文摘气候变化加剧了极端天气和水文事件的发生,降水是区域干旱与洪水事件最直接驱动因素。以TRMM/PR月累积降水反演遥感数据为基础,利用经验正交函数EOF(Empirical Orthogonal Function)方法对长江流域降水时空变化模式进行提取,并对比分析了主要模式振幅强弱与极端水文事件的对应关系。结果表明在流域尺度上EOF方法及TRMM/PR数据可以较好地识别降水主要模式,通过时空尺度变换成功揭示主要降水模式强弱与流域极端水文事件的对应关系。鉴于日益丰富的巨量水文气象时空数据,EOF方法在模式提取、水文模拟、极端事件预估及灾害适应性研究等方面具有应用潜力。 | 孙占东 黄群 姜加虎 OPP Christian | 2012 | 长江流域资源与环境2012，21，3： | 5 |
| 6 | Rating Agencies in the Face of Regulation显示文摘 | Opp Christian C Opp Marcus M Harris Milton | 2013 | Journal of Financial Economies2013，108，1： | 1 |
| 7 | Evalu-ation of ecological restoration through vegetation patterns inthe lower Tarim River,China with MODIS NDVI data显示文摘 | Sun Zhandong Chang Nibin Opp Christian | 2011 | Ecological Informatics2011，6，2： | 1 |
| 8 | Impacts and Implications of Major Changes Caused by the Three Gorges Dam in the Middle Reaches of the Yangtze River, China显示文摘 | Zhandong Sun Qun Huang Christian Opp Thomas Hennig Ulf Marold | 2012 | Water Resources Management2012，，12： | 1 |
| 9 | Evaluation of ecological restoration through vegetation patterns in the lower Tarim River, China with MODIS NDVI data显示文摘 | Zhandong Sun Ni-Bin Chang Christian Opp Thomas Hennig | 2010 | Ecological Informatics2010，，2： | 1 |
| 10 | Catchment soils as a factor of trace metal accumulation in sediments of the reservoir Klingenberg(eastern Ore Mountains, Germany)显示文摘The release and accumulation dynamics of trace metals in soils and aquatic sediments were exemplarily investigated in the catchment area of the Reservoir Klingenberg(Germany).Catchment soils were examined for mobilizable and total concentrations of arsenic(As),cadmium(Cd),chrome(Cr),iron(Fe),manganese(Mn),nickel(Ni),lead(Pb),and zinc(Zn)and compared with trace metal quantities accumulated in riverbed and reservoir sediments.The comparison of all samples showed relatively small variations of Cr(7.96–46.0 mg/kg),Fe(7.79–40.4 g/kg),and Ni(6.06–56.5 mg/kg),while stronger differences were found for As(11.2–164 mg/kg),Cd(0.14–30.5 mg/kg),Mn(0.08–1.84 g/kg),Pb(20.7–183 mg/kg),and Zn(69.1–916 mg/kg).The catchment soils were slightly enriched by Cd,Pb,and Zn.Especially Cd and Zn were characterized by large mobilizable proportions.The mean trace metal concentrations in riverbed sediments were higher than in catchment soils,while reservoir sediments accumulated the highest amounts of the analyzed elements.The enrichment of trace metals in reservoir sediments was generally determined by the sedimentation of fine particles,while the distribution of As,Fe,and Mn was additionally impacted by redox conditions.For Cd and Zn,which in comparison were most enriched in riverbed and reservoir sediments,a significant release from soils by leaching processes was observed.The accumulation of As and Pb in reservoir sediments was influenced to a greater extent by soil erosion and by anthropogenic or chalcogen sources in the catchment. | Jens Hahn Christian Opp Raphael Ganzenmuller Anntke Ewert Birgit Schneider Nina Zitzer Gabriela Laufenberg | 2019 | Journal of Environmental Sciences2019，31，12： | 0 |
| 11 | Regime dynamics of hydrochemical and toxicological parameters of the Irtysh River in Kazakhstan显示文摘Since the Irtysh River flows through the important economic,ecological and social territories of China,Kazakhstan and Russia,the water quality issues growingly draw the attention of the water authorities from these countries.Therefore,a detailed study of the hydrochemical regime and toxicological indicators in Kazakhstan was carried out for understanding the regime dynamics of water quality and its affect factors.The combined assessment of maximum permissible concentration(MPC)of chemical components and biotesting method were proposed and performed for the study area.The results clearly showed that the concentrations of single chemical component at different locations are mostly under MPC standard in a basin scale.However,the watershed surface runoff and tributary stream flow from mining industry areas had high concentration of heavy metals and had significant impact on the water quality near Ust-Kamenogorsk.Furthermore,even the stream water generally meet MPC standard,the results of biotesting method show the toxicity level of water sample is lethal for the test objects of phytoplankton and Daphnia.The survival rates of most water samples are lower than 46.7%.Hereby,this study strongly suggests using combined water assessment methods to evaluate the water quality. | Diana M BURLIBAYEVA Malik Zh BURLIBAYEV Christian OPP BAO Anming | 2016 | Journal of Arid Land2016，8，4： | 0 |
| 12 | Spatial and temporal gradients in the rate of dust deposition and aerosol optical thickness in southwestern Iran显示文摘The southwestern Iran is one of the regions that are most prone to dust events.The objective of this study is the analysis of the spatial and temporal distributions of dust deposition rate as a key factor for finding the relative impact of the dust.First,the monthly mean aerosol optical thickness(AOT)from Moderate Resolution Imaging Spectroradiometer(MODIS)was analyzed and compared with the dust amount variations from ground deposition rate(GDR),and the results were further used to investigate the spatial and temporal distributions of dust events in southwestern Iran for the period between 2014 and 2015.Moving air mass trajectories,using the Hybrid Single-Particle Lagrangian Integrated Trajectory(HYSPLIT)model,were proven to be a discriminator of their local and regional origin.The results from GDR analysis produced a correlation coefficient between dust event history and deposition rates at dust magnitudes of>0.93 that is meaningful at the 95%confidence level.Furthermore,the deposition rates varied from 3 g/m2 per month in summer to 10 g/m2 per month in spring and gave insight into the transport direction of the dust.Within the same time series,AOT correspondences with MODIS on Terra in four aerosol thickness layers(clean,thin,thick,and strong thick)were shown in relation to each other.The deepest mixed layers were observed in spring and summer with a thickness of approximately 3500 m above ground level in the study area.Investigations of ground-based observations were correlated with the same variations for each aerosol thickness layer from MODIS images and they can be applied to discriminate layers of aeolian dust from layers of other aerosols.Together,dust distribution plots from AOT participated to enhance mass calculations and estimation deposition rates from the thick and strong thick aerosol thickness layers using the results from GDR.Despite all the advances of AOT,under certain circumstances,ground-based observations are better able to represent aerosol conditions over the study area,which were tested in southwestern Iran,even though the low number of observations is a commonly acknowledged drawback of GDR. | Mansour A FOROUSHANI Christian OPP Michael GROLL | 2021 | Journal of Arid Land2021，13，1： | 0 |
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