首页> 外文期刊>Agricultural and Forest Meteorology >Long-term record and analysis of soil temperatures and soil heat fluxes in a grassland area, The Netherlands
【24h】

Long-term record and analysis of soil temperatures and soil heat fluxes in a grassland area, The Netherlands

机译:荷兰草原地区土壤温度和土壤热通量的长期记录和分析

获取原文
获取原文并翻译 | 示例
       

摘要

A 27-year soil temperature record at five depths and soil heat flux record at one depth were analyzed for a grassland area in The Netherlands. The annual mean soil temperature of the last 23 years of soil measurements (no data gaps) showed a statistically significant increase of about 1.0 degrees C, consistent with the observed air temperature increase of about 1.3 degrees C for the same period. This positive trend correlates well with global brightening of 5.3 W m(-2) per decade. The 10-day mean soil temperature varied smoothly throughout the year with relatively small inter-annual variability. The deeper the measurement depth, the smoother the annual cycle and the smaller the variability. In February and at the end of the year the variability appears to be somewhat larger. A Fast Fourier Transform was applied to the measurements and revealed an annual and daily damping depth of 1.80 m and 0.10 m, respectively. An example of the usefulness of this data is provided for agriculture, where an aggressive root-knot nematode is affected by the mean soil temperature increase. It appears that the 600 degree day life-cycle threshold is reached 16 days earlier, which may lead to a potential serious increase in agriculture crop damage
机译:分析了荷兰草原地区27年的5个深度的土壤温度记录和1个深度的土壤热通量记录。最近23年土壤测量的年平均土壤温度(无数据缺口)显示出统计学上的显着升高,约为1.0摄氏度,这与同期观测到的气温升高约1.3摄氏度相一致。这种积极的趋势与每十年5.3 W m(-2)的全球增亮密切相关。全年的10天平均土壤温度在一年中平稳变化,且年际变化较小。测量深度越深,年周期越平滑,变异性越小。在二月和年底,差异似乎更大。快速傅里叶变换应用于测量,并显示出每年和每天的阻尼深度分别为1.80 m和0.10 m。该数据对农业的有用性提供了一个示例,在该农业中,侵袭性的根结线虫受到平均土壤温度升高的影响。似乎提前16天达到了600度的全天候生命周期阈值,这可能会导致潜在的农作物严重受损

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