...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Catena: An Interdisciplinary Journal of Soil Science Hydrology-Geomorphology Focusing on Geoecology and Landscape Evolution >Ant mounds as a source of sediment on citrus orchard plantations in eastern Spain. A three-scale rainfall simulation approach
【24h】

Ant mounds as a source of sediment on citrus orchard plantations in eastern Spain. A three-scale rainfall simulation approach

机译：蚁丘是西班牙东部柑桔园人工林的沉积物来源。三尺度降雨模拟方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Ants are widely found in Mediterranean soils, where they increase water infiltration rates by forming soil macropores during nest construction. While higher water infiltration usually results in lower soil erosion rates, new soil brought to the surface by ant activity could increase sediments available for erosion. This could be especially important in intensively-managed citrus orchards, where surface mineral soil is exposed due to the lack of vegetation cover as a consequence of herbicide treatments. In the summer of 2009 rainfall simulations of low frequency-high intensity rainstorms were conducted in an orange orchard in eastern Spain on plots that contained ant nests and adjacent paired-plots without ant nests. Since soil erosion is a scale-dependent process, we used three plot sizes (0.25 m(2), 1 m(2), and 12 m(2)) to determine the effect of ant burrowing and nesting on soil and water losses. Ant nests decreased water losses from 22.5% at 0.25 m(2) to 10.6% at 12 m(2), but soil erosion rates were nearly double in areas with ant activity (0.56 to 0.59 Mg ha(-1) h(-1)), as compared to soil with no ants (0.31 to 036 Mg ha(-1) h(-1)). Our results indicate that the presence of ants can increase soil erosion when rainfall intensity is greater than the infiltration capacity of the ant macropores
机译：蚂蚁在地中海土壤中被广泛发现，它们在筑巢期间通过形成土壤大孔来增加水的渗透率。虽然较高的水渗透通常会导致较低的土壤侵蚀速率，但通过蚂蚁活动带到地表的新土壤可能会增加可用于侵蚀的沉积物。在集约经营的柑桔园中，由于除草剂处理导致植被覆盖不足而使表层矿物土壤裸露，这可能尤其重要。在2009年夏季，在西班牙东部的一个橙色果园中，在包含蚂蚁窝和不带蚂蚁窝的相邻成对地块上进行了低频-高强度暴雨的降雨模拟。由于土壤侵蚀是一个与规模有关的过程，因此我们使用三种样地大小（0.25 m（2），1 m（2）和12 m（2））来确定蚂蚁穴居和筑巢对水土流失的影响。蚁巢使水的损失从0.25 m（2）的22.5％减少到12 m（2）的10.6％，但是在具有蚂蚁活性的地区（0.56至0.59 Mg ha（-1）h（-1），土壤侵蚀速率几乎翻了一番）），相比之下，没有蚂蚁的土壤（0.31至036 Mg ha（-1）h（-1））。我们的结果表明，当降雨强度大于蚂蚁大孔的渗透能力时，蚂蚁的存在会加剧土壤侵蚀。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号