...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Agricultural and Food Chemistry >Effects of Wilting and Dew on the Water Isotope Composition of Detached Grass in Temperate Grassland
【24h】

Effects of Wilting and Dew on the Water Isotope Composition of Detached Grass in Temperate Grassland

机译：枯萎与露水对温带草地脱落草水同位素组成的影响

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

Understanding the water isotopes in feed products derived from grass is fundamental for tracing domestic animal products. Grass silage water was reported to have fewer heavy isotopes than fresh grass, but it is still unknown whether dew formation (either dewfall or dewrise), exchange with soil water, or other processes override the expected enrichment of heavy isotopes due to wilting. The isotopic variations of water (delta H-2, delta O-18) in fresh grass and cut grass during wilting on soil and on plastic were compared in this study. Drying enriched heavier isotopes, but this was overridden by three processes that finally caused low delta H-2 and delta O-18 values: (i) the adsorption of humidity from the surroundings, (ii) the exchange with humidity, and (iii) the depletion of heavy water isotopes close to organic surfaces, called the surface effect, which was the most dominant effect at the end of drying when the water content became low.
机译：了解来自草地的饲料产品中的水同位素是追踪国内动物产品的基础。 据报道，草青贮水比鲜草较少，但仍然未知是否露珠（脱污水或制品），与土壤水的交换，或其他过程覆盖由于萎氏萎的沉重同位素的预期富集。 在本研究中，比较了在土壤和塑料下的新鲜草和切割草丛中水（Delta H-2，Delta O-18）的同位素变化。 干燥富含较重的同位素，但是这是由三种过程覆盖的，最终引起了低δH-2和ΔO-18值：（i）从周围环境中吸附湿度，（ii）与湿度的交换和（iii） 靠近有机表面的重水同位素的耗尽，称为表面效应，当水含量变低时，在干燥结束时是最显着的效果。

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