...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Plant and Soil >Young shade trees improve soil quality in intensively managed coffee systems recently converted to agroforestry in Yunnan Province, China
【24h】

Young shade trees improve soil quality in intensively managed coffee systems recently converted to agroforestry in Yunnan Province, China

机译：年轻的遮阳树改善了云南省云南省农林商的集中管理咖啡系统中的土壤质量

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

Background and aims The trend of soil degradation in intensive open coffee systems is well-documented. This study highlights the impact of young shade trees on soil quality only 4 years after their intercropping with coffee. Methods 18 young shade trees belonging to three tree species (Cinnamomum camphora,Bishofia javanicaandJacaranda mimosifolia) were selected in an intensive coffee system in Southern Yunnan. Soil samples (0-20 cm) were tested for chemical composition, soil communities and soil enzyme activities under their canopies and in open areas, both in coffee rows and inter-rows, once during the rainy and once during the dry season. Additionally, root systems were characterized using trenches. Soil water profiles and litterfall were monitored along the production cycle. Coffee yield was recorded for two consecutive years. Results We detected a positive impact of all shade tree species on soil chemical, biological and biochemical components, especially during the dry season. This positive impact included higher soil organic matter (+10%) and more abundant soil microbial communities (+64%) under shaded coffee than under open coffee. Furthermore, shaded coffee trees yielded as much as open coffee trees, except underC. camphora, probably due to high below-ground competition. Conclusions These results demonstrate that carefully selected shade trees can rapidly contribute to preserving and/or restoring soil quality in intensive coffee systems, while maintaining high coffee yield.
机译：背景和旨在充分记录了密集开放式咖啡系统中土壤退化的趋势。这项研究突出了咖啡间隔后4年的幼苗树木对土壤质量的影响。方法采用18种属于三种树种（Cannamomum Camphora，Bishofia JavanicaAndjacaranda Mimosifolia）的年轻阴影树木，在云南南部的一款密集的咖啡系统中选择。在咖啡排和行中的燕麦和开放区域下测试土壤样品（0-20cm），在咖啡排和行下的开放区域进行化学成分，土壤群落和土壤酶活性，一次在雨季期间曾经在旱季和一次。另外，通过沟槽表征根系。沿着生产周期监测土壤水分谱和落叶。咖啡率连续两年记录。结果我们检测到所有遮阳树物种对土壤化学，生物化学和生化组分的积极影响，特别是在干燥季节。这种积极的影响包括较高的土壤有机物（+ 10％）和更丰富的土壤微生物社区（+ 64％）而不是在开放的咖啡下。此外，除非欠款，阴影咖啡树尽可能多地产生开放的咖啡树。樟树，可能是由于低于地面竞争。结论这些结果表明，精心挑选的树木树木可以迅速促进保存和/或恢复密集咖啡系统的土壤质量，同时保持高咖啡产量。

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