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132篇 您的检索式:作者名="Syvitski"
    题名 作者 年代 出处 被引量
1Assessing the Effect of Natural Controls and Land Use Change on Sediment Yield in a Major Andean River:The Magdalena Drainage Basin,Colombia显示文摘马格达莱纳河是哥伦比亚安第斯山区的一个世界级的河流网络,该河流年产沙量约为150Mt,是全世界10大主要产沙河流之一。在本研究中,我们探讨主要自然因子和人类活动对马格达莱纳河流域产沙模式的影响,重建该区森林砍伐和农业活动时空模式,探讨土地利用变化与产沙趋势的关系。我们的研究结果表明,整个马格达莱纳河流域的产沙量可以用自然变量(包括径流量和最大河水流量)来解释。这两个因子解释了产沙量58%的变化。含沙率和土地利用的时间分析表明,在过去10~20年里流域侵蚀呈现增加的趋势。许多人类活动的影响,包括森林覆被在20年里减小了近40%.农业和牧场增加了65%、土壤保持差、开矿活动,以及城市化的加速,都促进了该地区域尺度上产沙量的增加。Juan Dario Restrepo James P. M. Syvitski 方海燕(译) 2006AMBIO-人类环境杂志2006,35,2:4
2Geomorphic/tectonic control of sediment discharge to the ocean : The importance of small mountainous rivers显示文摘Milliman J D Syvitski J P M 1992Journal of Geology1992,100,:1
3Geomorphic/tectonic control of sediment dischnrge to the ocenns: The importance of small mountainous rivers 显示文摘Milliman J D Syvitski J P M 1992J Geol1992,100,5:1
4Geomorphic/tectonic control of sediment discharge to the ocean: The importance of small mountainous rivers 显示文摘MILLIMAN J D SYVITSKI J P M 1992The Journal of Geology1992,100,5:1
5Impact of Humans on the flux of terrestrial sediment to the global coastal ocean显示文摘James P M Syvitski Charles J Vorosmarty 0,,:1
6Geomorphologie/teetonic control of sediment discharge to the ocean:the importance of small mountainous rivers显示文摘Milliman J D Syvitski J P M 0,,:1
7Deltas at Risk 显示文摘Syvitski J P 2008Sustainability Sci-ence ?2008,3,1:1
8Sinking deltas due to human activities显示文摘Syvitski J P M Kettner A J Overeem I 2009Nature Geosci2009,2,10:1
9Sink-ing Deltas Due to Human Activities 显示文摘Syvitski J P Kettner A J Overeem I 2009NatureGeoscience2009,2,10:1
10Impact of humans on the flux of terrestrial sediment to the global coastal ocean显示文摘Syvitski J P VSrfsmarty C J Kettner A J 2005Science2005,308,5720:1
11Chronology and pa- leoenvironments during the late Weichselian deglaciation of the southwest Iceland shelf显示文摘Jennings A Syvitski J Gersob L 2000Boreas2000,29,3:1
12Marine hyperpycnal flows:initiation,behavior and related deposits显示文摘Mulder T Syvitski J P Migeon S 2003A Review Jmpg2003,20,6:1
13Impact of Humans on the Flux of Terrestrial Sediment to the Global Coastal Ocean 显示文摘Syvitski J P M Vorosmarty C J Kettner A J Green P 2005Science2005,,308:1
14In situ observation of floc settling velocities in Glacier Bay, Alaska显示文摘HILL P S SYVITSKI J P COWAN E A 1998Maine Geology1998,145,:1
15Structural characterization of the antimicrobial peptide pleurocidin from winter flounder显示文摘Syvitski RT Burton I Mattatall N R 0,,19:1
16Estimating fluvi- al sediment transport: the rating parameters显示文摘Syvitski J P Morehead M D Bahr D B 2000Water Re- sources Research2000,36,9:1
17Morphodynamics of Deltas under the in fuence of humans显示文摘Syvitski J P M Saito Y 2007Glob Planet Changes2007,57,4:1
18Impact of humans on the flux of terrestrial sediment to the global coastal ocean显示文摘Syvitski J P M V6r6smarty C J Kettner A J 2005Science2005,308,5720:1
19Impact of Humans on the flux of terrestrial sediment to the Global Coastal Ocean 显示文摘Syvitski J P V6r6smarty C J Kettner A J 2005Science2005,308,:1
20Morphodynamics of deltas under the influence of humans显示文摘Syvitski J Saito Y 2007Global and Planetary Change2007,57,34:1
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