4种牧草种间竞争力和种间关系的研究  被引量：40

Competitive ability and interspecific relationship among four forage species</em> <p class='article-op'> <span id="bdshare" class="bdshare_t bds_tools get-codes-bdshare baidufx"><span><span class="bds_more" style="display: block; width: 62px; height: 29px; background: url(/images/share.gif) no-repeat!important; padding: 0;"></span></span></span> </p> <p class="article-source"> <a href ='/article/read.aspx?id=6762439' class='btnTitle btnIsView' target='_blank'><img alt='在线阅读' src='/images/btn-read.png'/></a><a class='btnTitle btnIsView' href="javascript:showdown('Rxjhdh9keiNCrajC6QmGbCt8cej1Fl8XV4x66x1HMvk=')"><img alt="下载全文" src="/images/btn-down.png" /></a> <input id="hiddowninfo" type="hidden" value="Rxjhdh9keiNCrajC6QmGbCt8cej1Fl8XV4x66x1HMvk="/> </p> <div class="collect" style="display: none"> <h5>我的收藏</h5> <div class="cnt"> <p> 名 称：<input type="text" name="collTitle" id="collSumTitle" /> </p> <p> 注 释：<input type="text" name="collRemark" id="collSumRemark" /> </p> <p style="text-align: center;"> <a href="javascript:void(0)" onclick="g_collectSumOk();"> <img width="65" height="17" src="/images_new/collect_ok.png" alt="完成" /></a> <a href="javascript:void(0)" onclick="g_collectSumCancel();"> <img width="65" height="17" src="/images_new/collect_no.png" alt="取消" /></a> </p> </div> </div> </div> <form name="wxTransfer" method="post"> <input type="hidden" name="lid" value="" /> <input type="hidden" name="sip" value="" /> <input type="hidden" name="date" value="" /> <input type="hidden" name="co" value="" /> <input type="hidden" name="Title_C" value="" /> <input type="hidden" name="Writers" value="" /> <input type="hidden" name="Name_C" value="" /> <input type="hidden" name="Num" value="" /> <input type="hidden" name="Years" value="" /> <input type="hidden" name="Volumn" value="" /> <input type="hidden" name="GCH" value="" /> <input type="hidden" name="Vol" value="" /> <input type="hidden" name="BookID" value="" /> <input type="hidden" name="SubjectNum" value="" /> <input type="hidden" name="SpecialNum" value="" /> <input type="hidden" name="mirrorName" value="" /> <input type="hidden" name="UserID" value="" /> <input type="hidden" name="UserName" value="" /> <input type="hidden" name="sourceID" value="" /> </form> <script type="text/javascript" src="/scripts/transfer.min.js"></script> <div class="article-detail"> <p class='author'><strong>作　　者：</strong><a href='/writer/article.aspx?id=100000007641551' target='_blank' ><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=A%3d%5b%e6%b2%88%e7%a6%b9%e9%a2%96%5d' title='沈禹颖[1]'>沈禹颖[1]</a> <a href='/zk/search.aspx?key=A%3d%5b%e6%9d%8e%e6%98%80%5d' title='李昀'>李昀</a> <a href='/writer/article.aspx?id=100000012386483' target='_blank' ><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=A%3d%5b%e9%99%86%e5%a6%ae%5d' title='陆妮[1]'>陆妮[1]</a> <em> </em></p><p class='organ'><strong>机构地区：</strong><a href='/organ/article.aspx?id=65835&subid=&showname=&searchtype=' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=S%3d%e5%85%b0%e5%b7%9e%e5%a4%a7%e5%ad%a6%e8%8d%89%e5%9c%b0%e5%86%9c%e4%b8%9a%e7%a7%91%e6%8a%80%e5%ad%a6%e9%99%a2%e7%94%98%e8%82%83%e7%9c%81%e8%8d%89%e5%8e%9f%e7%94%9f%e6%80%81%e7%a0%94%e7%a9%b6%e6%89%80' title='[1]兰州大学草地农业科技学院甘肃省草原生态研究所,兰州730020'>[1]兰州大学草地农业科技学院甘肃省草原生态研究所,兰州730020</a> <a href='/zk/search.aspx?key=S%3d%e7%94%98%e8%82%83%e7%9c%81%e5%8a%a8%e7%89%a9%e8%90%a5%e5%85%bb%e7%a0%94%e7%a9%b6%e6%89%80' title='[2]甘肃省动物营养研究所,兰州730030'>[2]甘肃省动物营养研究所,兰州730030</a> <em> </em></p><p class='from'><strong>出　　处：</strong><a href='/journal/summary.aspx?gch=97784X' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=J%3d%5b%e8%8d%89%e4%b8%9a%e5%ad%a6%e6%8a%a5%5d' title='草业学报'>《草业学报》</a>2002年第3期8-13,共6页<em>Acta Prataculturae Sinica</em></p><p class='fund'><strong>基　　金：</strong>国家自然科学基金重点项目(39630250);甘肃省科委"九五"攻关(K971-2-34A);国家重点基础研究发展规划(G2000018602)资助</p><p class='abstrack'><strong>摘　　要：</strong>盆栽条件下利用添加系列设计对箭舌豌豆(ViciasativaCV.333/A),黄花草木樨(Melilotsofficinalis),牛尾草(Festucaelatior)和长穗偃麦草(Elytrigiaelongata)个体的种间关系和种间竞争力进行了测定。结果表明:81.3%的目标种单株生物量潜势Pmax与邻居种密度显著负相关,56.3%的目标种单株生物量潜势Pmax与邻居种生物量呈显著负相关(P<0.05),邻居种密度平均可解释74.9%的目标种生物量变异。4个种的竞争效应和竞争反应对邻居种敏感,它们的等级无显著的协同性(P>0.05)。1年生豆科牧草箭舌豌豆的竞争效应和竞争反应均占首位,生长当年与多年生牧草混播有生长优势;草木樨和长穗偃麦草的竞争反应较大,生长后期生长优势明显。<em><Abstrcat> In a pot experiment, an additive design was used to determine the competittive ability and interspecific competition relationship among four forage species: Vicia sativa Var. 333/A, Melilots officinalis, Festuca elatior and Elytrigia elnogata. The results indicated that significantly negative linear regression of individual target biomass potential was 81.3% on neighbour density and 56.0% on neighbour biomass. Proportion of variance in target biomass explained by neighbour density and biomass was 74.3% and 63.0% respectively (P<0.05). Interspecific competition relationship was revealed between species species combination. The hierarchies of competitive effect and response were not concordant among target species or among neighbour species, which meant each species was sensitive to neighbour one. As the best competitor species, V. sativa could occupy the resource in early stage, while the weaker competitors, E. elongata, M. officinalis use resource better in later stage.</em></p><p class='subject'><strong>关 键 词：</strong><a href='/subject/article.aspx?id=4794678' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=K%3d%5b%e7%89%a7%e8%8d%89%5d' title='牧草'>牧草</a> <a href='/subject/article.aspx?id=3350328' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=K%3d%5b%e7%a7%8d%e9%97%b4%e7%ab%9e%e4%ba%89%e5%8a%9b%5d' title='种间竞争力'>种间竞争力</a> <a href='/subject/article.aspx?id=3350301' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=K%3d%5b%e7%a7%8d%e9%97%b4%e5%85%b3%e7%b3%bb%5d' title='种间关系'>种间关系</a> <a href='/subject/article.aspx?id=5871573' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=K%3d%5b%e7%ae%ad%e8%88%8c%e8%b1%8c%e8%b1%86%5d' title='箭舌豌豆'>箭舌豌豆</a> <a href='/subject/article.aspx?id=8889061' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=K%3d%5b%e8%8d%89%e6%9c%a8%e6%a8%a8%5d' title='草木樨'>草木樨</a> <a href='/zk/search.aspx?key=K%3d%5b%e7%89%9b%e5%b0%be%e8%8d%89%5d' title='牛尾草'>牛尾草</a> <a href='/subject/article.aspx?id=8969931' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=K%3d%5b%e9%95%bf%e7%a9%97%e5%81%83%e9%ba%a6%e8%8d%89%5d' title='长穗偃麦草'>长穗偃麦草</a> <a href='/zk/search.aspx?key=K%3d%5b%e7%be%a4%e8%90%bd%e7%bb%93%e6%9e%84%5d' title='群落结构'>群落结构</a> </p><p class='class'><strong>分 类 号：</strong><a href='/zk/search.aspx?key=C%3dS54' title='S54'>S54</a>[<a href = '/domain/article.aspx?id=534' >农业科学—作物学</a>] <a href='/zk/search.aspx?key=C%3dS314' title='S314'>S314</a></p> </div> <div id="content_wzxg" name="wzxg" class="article-graph"> <object width="695" height="250" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" id="FlashID"> <param value="../flash/relation.swf" name="movie"> 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