• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Advances in Materials and Manufacturing >Spatial distribution in forest soil nutrients and its relationship with ecological factors on the up stream of Taihu lake basin
【24h】

Spatial distribution in forest soil nutrients and its relationship with ecological factors on the up stream of Taihu lake basin

机译：太湖流域林壤土养分的空间分布及其与生态因素的关系

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To examine the role of the forest in non-point source pollution control in the Taihu lake region, the soil profile nutrients including nitrate, hydrolyze nitrogen (HN), available phosphorus (AP), total nitrogen (TN), total phosphorus (TP) concentration of 26 forest sample plots along the Xitiaoxi River from upstream to downstream were measured through July to August 2009, the relationship between vegetation type and topographic factors and soil nutrients was analyzed. results show that: (1) All of five soil nutrients concentration decreased with increasing soil depth; (2) Soil nutrients of different soil depth is intermediate variability, the coefficient of variation of AP, TN, HN, TP were increased with the increasing of soil depth, and the coefficient of variation of nitrate was decreased with the increasing of soil depth. (3)Soil HN content under plots with an average tree height above 10 m was significantly higher than plots with an average tree height less than 10 m; (4) Soil AP, HN, TN, TP content was first decreased and then increased with the increasing of elevation. In summary, the soil nutrients of different soil depth was found to be closely related to vegetation type, community age, structure, fertilization and topographic features in the upstream of Taihu lake basin.
机译：要检查森林在太湖地区非点源污染控制中的作用，土壤剖面营养素，包括硝酸盐，水解氮（HN），可用磷（AP），总氮（TN），总磷（TP）从上游到下游是通过测量七月到2009年8月沿西苕溪26块森林样地的浓度，植被的类型和地形因子和土壤养分之间的关​​系进行了分析。结果表明：（1）五种土壤营养素浓度随着土壤深度的增加而降低; （2）不同土壤深度的土壤营养素是中间变异性，随着土壤深度的增加，AP，TN，HN，TP的变异系数随着土壤深度的增加而增加，硝酸盐的变化系数随着土壤深度的增加而降低。 （3）平均树高于10米的图的土壤HN含量显着高于平均树高度小于10米的曲线; （4）土壤AP，HN，TN，TP含量首先降低，然后随着升高的增加而增加。总之，发现不同土壤深度的土壤养分与太湖池盆地上游的植被类型，群落年龄，结构，施肥和地形特征密切相关。

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