• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Lesnicky casopis >Soil erosion in Mediterranean chestnut tree plantations at risk due to climate change and land abandonment
【24h】

Soil erosion in Mediterranean chestnut tree plantations at risk due to climate change and land abandonment

机译：由于气候变化和陆地遗弃，地中海栗树种植园的土壤侵蚀

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

摘要

Chestnut cultivation is a type of traditional centennial exploitation in southern areas of Extremadura. Currently, chestnut is in danger of extinction due to the effects of climate change, some diseases (e.g. Cryphonectria parasitica) and land mismanagement. The high temporal variability of rainfall leads to soil erosion in chestnut cultivation. New forms of management are proposed to try, among other things, to reduce soil losses. This study quantifies soil losses in areas under tree canopies and open areas considering two different age plantations; 1990s and 1960s. To achieve the proposed goal 18 erosion plots were installed as paired plots under tree canopies and open areas in both plantations. The total amount of rainfall per event, tree cover, bare soil, runoff coefficient and sediment concentration were also measured in every plot. The results showed that the highest percentage of bare soil ( 45%) coincides with the period of greatest tree cover ( 75%). The open areas and the youngest plantation showed soil losses higher than the areas under the tree and the oldest plantation. In addition, soil losses increase as higher percentages of bare soil are recorded. We conclude that the size of the trees and a better soil stability in older plantations help reduce soil losses.
机译：栗子栽培是一种传统百年沿肢体区域的百年泛滥。目前，由于气候变化的影响，栗子是灭绝的危险，一些疾病（例如，Cryphonectria Parasitica）和土地管理。栗子栽培中降雨量的高颞变率导致土壤侵蚀。建议新形式的管理层，以及其他事情，以减少土壤损失。本研究量化树木檐篷和考虑两年不同年龄种植园的开放区域的土壤损失; 20世纪90年代和20世纪60年代。为了实现所提出的目标，18个侵蚀地块被安装为树木檐篷和两种种植园的开放区域的配对地块。每个事件，树木覆盖，裸土，径流系数和沉积物浓度的总降雨量也在每种曲线中测量。结果表明，裸土（> 45％）的最高百分比与最大的树木覆盖（> 75％）一致。开放区域和最小的种植园表明土壤损失高于树下的区域和最古老的种植园。此外，记录了土壤损失随着记录较高百分比的偏观百分比而增加。我们得出结论，老年种植园中树木的规模和更好的土壤稳定有助于减少土壤损失。

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