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当前位置: 首页 > 文章 > 砍伐与滑坡对东祁连山杜鹃灌丛草地土壤肥力的影响草业学报 2002,11 (3) 74-77

Position: Home > Articles > Effect of deforestation and landslide on soil of Rhododendron shrub ecosystem in the eastern Qilian mountains</span> <a class="link-jour" href="/journal/detail.html?gid=17E85FC4-F154-4455-BAE2-DF6F65D7D439">Acta Prataculturae Sinica</a> 2002,11 (3) 74-77 </div> <div class="article_content"> <div class="article_details_left"> <div class="article_details"> <h3 id="ARTICLE_TITLE" class="article_title">砍伐与滑坡对东祁连山杜鹃灌丛草地土壤肥力的影响</h3> <div class="abs-indent"> <div class="indent-list"> <div class="list-label">作者：</div> <div class="list-cont" data-cls="author-item">张德罡</div> </div> <div class="indent-list"> <div class="list-label">单位：</div> <div class="list-cont" data-block="div">甘肃农业大学草业学院</div> </div> <div class="indent-list"> <div class="list-label">关键词：</div> <div class="list-cont">东祁连山;杜鹃灌丛;砍伐;滑坡;土壤肥力</div> </div> <div class="indent-list"> <div class="list-label">摘要：</div> <div class="list-cont" data-skip="true">分布于东祁连山高山地带的杜鹃灌丛下的土壤中,有效氮与有机质含量呈正相关关系(r=0.8794,P<0.01),全氮和全磷在年内变幅较小。砍伐后第1年内有机质、全氮含量变幅很小,分别由砍伐前的24.43%和1.00%降为24.39%和0.97%;全磷含量未见变化;有效氮含量和pH值则分别由543.4×10-6和7.34上升为597.8×10-6和7.43。在植被完全遭到破坏的自然滑坡地段,土壤有机质、有效氮、全氮和全磷含量与其对照相比,有不同程度的下降,分别由16.56%、415.4×10-6、0.97%和0.052%下降为9.20%、204.0×10-6、0.46%和0.038%;土壤pH值则由7.61上升为7.79。研究表明,干扰对土壤因子有较大影响,尤以滑坡最为严重。</div> </div> </div> <div class="article_abs abs-indent"> <div class="indent-list"> <div class="list-label">译名：</div> <div class="list-cont"><title>Effect of deforestation and landslide on soil of Rhododendron shrub ecosystem in the eastern Qilian mountains</div> </div> <div class="indent-list"> <div class="list-label">作者：</div> <div class="list-cont" data-cls="author-item">ZHANG Degang(Pratacultural Institute, Gansu Agricultural University, Lanzhou 730070, China)</div> </div> <div class="indent-list"> <div class="list-label">关键词：</div> <div class="list-cont">eastern Qilian mountains; Rhododendron shrub; disturbance; landslip; soil fertility</div> </div> <div class="indent-list"> <div class="list-label">摘要：</div> <div class="list-cont" data-skip="true"><Abstrcat> The content of organic matter (OM ) in the soil of Rhododendron community located in the eastern Qilian mountains was positively correlated with available nitrogen (AN ) (r=0.879 4, P<0.01). The contents of total nitrogen (TN) and total phosphorous (TP) appeared a stable status. In the first year after the shrub was deforested, the contents of OM and TN changed from 24.43% and 1.00% to 24.39% and 0.97% respectively. But TP did not change. Meanwhile, the content of AN and pH value increased from 543.4×10-6 and 7.34 to 597.8×10-6 and 7.43. However, in the area where the vegetation was totally destroyed by landslip, the contents of OM, AN, TN and TP decreased greatly from 16.56%, 415.4×10-6, 0.97% and 0.052% to 9.20%, 204.0×10-6, 0.46% and 0.038% respectively. And pH value within 0-10 cm increased from 7.61 to 7.79. It is indicated that the effect of disturbing on the soil is severe especially landslip. </div> </div> </div>  </div> <div class="share-box"> <div class="share"> <script type="text/javascript" charset="utf-8" src="/frontend/b/buttonLite.js#style=-1&uuid=&pophcol=2&lang=zh"></script> <script type="text/javascript" charset="utf-8" src="/frontend/b/bshareC0.js"></script> <div class="bshare-custom"> <p style="height: 26px; padding-top: 5px;"> <span>分享到：</span> <a title="分享到QQ空间" class="bshare-qzone share_btn"></a> <a title="分享到微博" class="bshare-sinaminiblog share_btn"></a> <a title="分享到微信" class="bshare-weixin share_btn" href="javascript:void(0);"></a> <span class="BSHARE_COUNT bshare-share-count">0</span> </p> </div> <script type="text/javascript" charset="UTF-8"> bShare.init(); $('.share_btn').on('click', function () { var entity = { title: $('#ARTICLE_TITLE').html() } bShare.addEntry(entity); }) </script> </div> </div> <style type="text/css"> .bshare-custom .bshare-share-count{ color: 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