...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chinese science bulletin >Models for calculating phreatic water evaporation on bare and Tamarix-vegetated lands
【24h】

Models for calculating phreatic water evaporation on bare and Tamarix-vegetated lands

机译：裸露的土地和Tamarix植被土地上的潜水水蒸发量计算模型

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

Groundwater is the main source of water consumption of natural vegetation in arid regions. It is an effective approach to study ecological water demand of natural vegetation by phreatic evaporation. In order to study the ecological water demand of Tarim river basin, based on the observation data of phreatic evaporation on bare lands at the Aksu Water Balance Experimental station from 1989 to 1996, by analyzing the relationship of phreatic evaporation, depth of phreatic surface and evaporation of water, taking the limit rate of phreatic evaporation as the control condition, and based on the objective law that the relation between phreatic evaporation and evaporation of water is nonlinear, we establish models for calculating phreatic evaporation on bare land, which can fully reflect the law of phreatic evaporation in the Tarim river basin. According to the data of depth of phreatic surface and soil moisture when pheratic level decline is caused just by evapotran-spiration on Tamarix-vegetated land from 2003 to 2004, we calculate the amount of phreatic evaporation and set up models for calculating phreatic evaporation on Tamarix- vegetated land. Phreatic evaporation on bare land and Tamarix-vegetated land could be transformed each other by a Tamarix vegetation conversion coefficient. The test results show that the calculation accuracy of the models is high and the models are suitable for Tarim river basin.
机译：地下水是干旱地区天然植被耗水的主要来源。这是通过潜水蒸发研究天然植被生态需水量的有效途径。为了研究塔里木河流域的生态需水量，基于阿克苏水平衡试验站1989年至1996年裸地潜水蒸发观测数据，分析了潜水蒸发，潜水深度与蒸发之间的关系。水，以潜水蒸发的极限速率为控制条件，并根据潜水蒸发与水蒸发之间的非线性关系的客观规律，建立了裸地潜水蒸发计算模型，可以充分反映水的蒸发量。塔里木河流域的潜水蒸发规律。根据2003年至2004年仅由塔马里克（Tamarix）植被土地上的蒸发蒸腾引起的球面水位下降而引起的地表深度和土壤水分的数据，我们计算了塔里木（Tamarix）上的蒸发量并建立了计算塔顶蒸发量的模型。 -植被的土地。裸地和Ta柳植被地上的潜水蒸发可以通过Ta柳植被转化系数相互转化。测试结果表明，该模型计算精度较高，适用于塔里木河流域。

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