The formation of an anabranching planform in a sandy floodplain by increased flows and sediment load

S?owik Marcin

摘要

Abstract >Anabranching rivers evolve in various geomorphic settings and various river planforms are present within these multi‐channel systems. In some cases, anabranches develop meandering patterns. Such river courses existed in Europe prior to intensive hydro‐technical works carried out during the last 250?years. Proglacial stream valleys, inherited from the last glaciation, provided a suitable environment for the development of anabranching rivers (wide valleys floors with abundant sand deposits). The main objective of the present study is to reconstruct the formation of an anabranching river planform characterized by meandering anabranches. Based on geophysical and geological data obtained from field research and a reconstruction of palaeodischarges, a model of the evolution of an anabranching river formed in a sandy floodplain is proposed. It is demonstrated that such a river system evolves from a meandering to an anabranching planform in periods of high flows that contribute to the formation of crevasse splays. The splay channels evolve then into new meandering flow paths that form ‘second‐order’ crevasses, avulsions and cutoffs. The efficiency of the flow is maintained by the formation of cutoffs and avulsions preventing the development of high sinuosity channels, and redirecting the flow to newly formed channels during maximum flow events. A comparison with other anabranching systems revealed that increased discharges and sediment loads are capable of forming anabranching planforms both in dryland and temperate climate zones. The sediment type available for transport, often inherited from older sedimentary environments, is an important variable determining whether the channel planform is anabranching, with actively migrating channels, or anastomosing, with stable, straight or sinuous branches. Copyright ? 2017 John Wiley & So </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract XMLNS =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”> <title type =“main”>抽象</ title> > anabranching河流在这些多通道系统中存在各种地貌设置和各种河流形式的发展。在某些情况下，Anabranches开发了蜿蜒的模式。在过去250岁以下的电力技术作品之前，欧洲存在这样的河流课程。继承了最后冰川的流行流谷，为人类开发的河流（宽阔的山地沉积物覆盖地板）提供了合适的环境。本研究的主要目的是重建一种由蜿蜒的Anabranches的人的构成的河边河流的形成。基于从现场研究中获得的地球物理和地质数据和古古策略的重建，提出了一种在沙滩丛中形成的一条人的河流河流的演变模型。结果表明，这种河流系统从曲折到高流量时期的曲折平面形式发展，这有助于形成裂隙的剧烈剧烈。 SPLAY通道进入新的蜿蜒流动路径，该路径形成“二阶”裂缝，牵引和截止。通过形成截止值和撕开的流动的效率维持，防止高索光通道的发展，并在最大流动事件期间将流程重定向到新形成的通道。与其他人支体系的比较揭示了增加的放电和沉积物负荷能够在旱地和温带气候区中形成一体的人体平移。可用于运输的沉积物，通常是从旧沉积环境中继承的，是确定频道平面形式是否是一种重要的变量，具有积极迁移的通道，或吻合，具有稳定，直的或扭曲的分支。版权？ 2017年John Wiley＆amp;所以 </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-22319/'>《Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group》</a> <b style="margin: 0 2px;">|</b><span>2018年第3期</span><b style="margin: 0 2px;">|</b><span>共16页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=S?owik Marcin&option=202" target="_blank" rel="nofollow">S?owik Marcin;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Geographic and Geologic SciencesAdam Mickiewicz UniversityPoznań Poland;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/163.html" title="地球物理学">地球物理学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=river planform changes&option=203" rel="nofollow">river planform changes;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=anabranching rivers&option=203" rel="nofollow">anabranching rivers;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=splay channels&option=203" rel="nofollow">splay channels;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=ground‐penetrating radar&option=203" rel="nofollow">ground‐penetrating radar;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=palaeodischarge&option=203" rel="nofollow">palaeodischarge;</a> </p> <div class="translation"> 机译：河普拉特变化;人群河流;SPLAY频道;地面穿透雷达;古老索多克雷; </div> </li> </ul> </div> </div> <div class="literature cardcommon" id="literaturereference" style="display:none"> <div class="similarity "> <h3 class="all_title" id="enpatent111">引文网络</h3> <div class="referencetab clearfix"> <ul id="referencedaohang"> <li dataid="referenceul">参考文献</li> <li dataid="citationul">引证文献</li> <li dataid="commonreferenceul">共引文献</li> <li dataid="commoncitationul">同被引文献</li> <li dataid="tworeferenceul">二级参考文献</li> <li dataid="twocitationul">二级引证文献</li> </ul> </div> <div class="reference_details" id="referenceList"> <ul id="referenceul"></ul> <ul id="citationul"></ul> <ul id="commonreferenceul"></ul> <ul id="commoncitationul"></ul> <ul id="tworeferenceul"></ul> <ul id="twocitationul"></ul> </div> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704023139225.html">The formation of an anabranching planform in a sandy floodplain by increased flows and sediment load</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=S?owik Marcin&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">S?owik Marcin </a> <a href="/journal-foreign-22319/" target="_blank" rel="nofollow" class="tuijian_authcolor">Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group .</a> <span>2018</span><span>,第3期</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：通过增加流动和沉积物负荷，在沙滩泛洪叶中形成一架矛盾的平面图</span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/academic-journal-foreign_geomorphology_thesis/0204112264031.html">The late Quaternary evolution of the Negro River, Amazon, Brazil: Implications for island and floodplain formation in large anabranching tropical systems</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Edgardo M. 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storage basin for retained tidal or inland surface water</a> <b>[P]</b> . <span> 外国专利：  DE3006164A1 </span> <span> . 1981-08-20</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：去除沙质潮汐通道中的沉积物-包括逆流存储池，用于保留潮汐或内陆地表水 </span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06130475501337.html">PROCESSING OF ORGANIZATION OF A PLANFORM OF A PLANFORM, SPECIFICLY TRYCKSAKER, SOM FAERDIGSTAELLS I FJAELLARTADE FORMATIONER</a> <b>[P]</b> . <span> 外国专利：  FI831987A0 </span> <span> . 1983-06-02</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：平面图的组织过程，特别是印刷的事项，以山地构造完成 </span> </p> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130474291540.html">PROCESSING OF ORGANIZATION OF A PLANFORM OF A PLANFORM, SPECIFICLY TRYCKSAKER, SOM FAERDIGSTAELLS I FJAELLARTADE FORMATIONER</a> <b>[P]</b> . <span> 外国专利：  FI831987L </span> <span> . 1983-12-04</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：平面图的组织过程，特别是印刷的事项，以山地构造完成 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704023139225','4',7,2,1,'',this,24)" class="delivery" prompt="010401" title="通过人工服务将文献原文发送至邮箱" >获取原文</div> <div class="journalsub-pop-up" style="display: none"> <div 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