A model for catchment soil erosion management in humid agricultural environments

Pe?uela Andrés; Sellami Haykel; Smith Hugh G.

摘要

Abstract >Intensive agricultural practices have critically contributed to the global increase in soil erosion and sediment fluxes. To reduce the impact of these practices, models able to represent the effect of changes in agricultural land‐use, farming and conservation practices are needed. Moreover, simulations spanning multi‐decadal periods can overcome the potentially confounding influence of climate variability on shorter‐term studies of impacts from agricultural change. Conceptual erosion models, such as the Morgan–Morgan–Finney (MMF) model, allow simulation of soil erosion rates and sediment fluxes over longer periods, while still retaining a general description of runoff and sediment generation processes. In addition, the modified‐MMF (MMMF) model offers improved representation of vegetation cover effects through measurable plant properties. However, as an annual model, the MMF model does not capture seasonal variability in climate, hydrology and land cover. Here, we propose a new model for humid environments based on the MMF model to address its limitations and improve its predictive ability, while retaining its simplicity and low computational and parameterization requirements. This includes monthly computation, representation of catchment hydrology based on delineation of saturated areas according to the topographic wetness index (TWI), and improved representation of ground and vegetation cover effects. The proposed model, MMF‐TWI, was applied in an agricultural catchment in the UK and performance compared to published data and MMMF simulation results. Land cover spatial and temporal variability, crop type as well as farming and conservation practices were found to have a significant influence on simulated sediment yields. Our findings demonstrate: (a) that MMF‐TWI model improves predictive ability compared to the MMMF model </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> >密集农业实践对土壤侵蚀和沉积物通量的全球性增加有贡献。为减少这些实践的影响，需要代表农业用途，农业和保护实践变动影响的模型。此外，跨越多数截止时期的模拟可以克服气候变化对农业变革影响短期变化的潜在混淆影响。概念侵蚀模型，如Morgan-Morgan-Finney（MMF）模型，允许模拟土壤侵蚀率和沉积物通量超过更长的时间，同时仍然保留径流和沉积物产生过程的一般描述。此外，改进的-MMF（MMMF）型号通过可测量的植物特性提供了改进的植被覆盖效应的表示。然而，作为年度模型，MMF模型不会在气候，水文和陆地覆盖中捕获季节性变异性。在这里，我们提出了一种基于MMF模型的潮湿环境的新模型，解决其限制并提高其预测能力，同时保留其简单性和低计算和参数化要求。这包括每月计算，根据地形湿度指数（TWI）描绘饱和区域的划分，改善了地面和植被覆盖效应的提高。拟议的模型，MMF-TWI应用于英国的农业集水区，与发表的数据和MMMF仿真结果相比，表现相比。发现土地覆盖空间和时间可变性，作物类型以及农业和保护实践对模拟沉积物产量产生了重大影响。我们的研究结果表明：（a）与MMMF模型相比，MMF-TWI模型提高了预测能力 </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15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=Pe?uela Andrés&option=202" target="_blank" rel="nofollow">Pe?uela Andrés;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sellami Haykel&option=202" target="_blank" rel="nofollow">Sellami Haykel;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Smith Hugh G.&option=202" target="_blank" rel="nofollow">Smith Hugh G.;</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>School of Environmental SciencesUniversity of LiverpoolRoxby Building Liverpool UK;</p> <p>Laboratory of GeoresourcesCentre for Water Research and TechnologiesBorjCedria Tunisia;</p> <p>School of Environmental SciencesUniversity of LiverpoolRoxby Building Liverpool UK;</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=soil erosion&option=203" rel="nofollow">soil erosion;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=erosion modelling&option=203" rel="nofollow">erosion modelling;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=land cover&option=203" rel="nofollow">land cover;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=seasonality&option=203" rel="nofollow">seasonality;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=sediment yield&option=203" rel="nofollow">sediment yield;</a> </p> <div class="translation"> 机译：土壤侵蚀;侵蚀建模;陆地覆盖;季节性;沉积物产量; </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/0704023139220.html">A model for catchment soil erosion management in humid agricultural environments</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Pe?uela Andrés&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Pe?uela Andrés,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sellami Haykel&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Sellami Haykel,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Smith Hugh G.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Smith Hugh G. </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：潮湿农业环境中集水区土壤侵蚀管理模型</span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/academic-journal-foreign_journal-environmental-radioactivity_thesis/020411438782.html">Using ~(137)Cs to study spatial patterns of soil erosion and soil organic carbon (SOC) in an agricultural catchment of the typical black soil region, Northeast China</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Haiyan Fang&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Haiyan Fang,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Qiuyan Li&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Qiuyan Li,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liying Sun&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Liying Sun,</a> <a href="/journal-foreign-3075/" target="_blank" rel="nofollow" class="tuijian_authcolor">Journal of Environmental Radioactivity .</a> <span>2012</span><span>,第期</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：利用〜（137）Cs研究东北典型黑土区农业集水区土壤侵蚀和土壤有机碳（SOC）的空间格局</span> </p> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/academic-journal-foreign_hydrological-prochydrological-processesesses_thesis/0204112278255.html">RUNOFF GENERATION AND SOIL EROSION IN SMALL AGRICULTURAL CATCHMENTS WITH LOESS‐DERIVED SOILS</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=VAN DIJK P. 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