whlbus的个人博客分享 http://blog.sciencenet.cn/u/whlbus

博文

测试最大熵方法在低能量湿润地区闭合冠层灌木蒸散发估算中的应用

已有 2764 次阅读 2017-10-11 19:18 |系统分类:科研笔记

经过一番与审稿人的拉锯战,这篇小文也接收了,目前正在印刷中,网上可见最终接收稿。下附。大致内容:我们应用最大熵方法结合简单的温湿度和辐射测量,估算了灌木蒸腾量、总蒸散发量以及可能的截留蒸发量,并讨论了该灌木在其所在流域内对水文过程的影响。

Hydrological Processes,DOI: 10.1002/hyp.11363

接收稿 Wang et al. 2017-HP_Accepted.pdf

补充材料 Supporting_Information_R2.pdf


Abstract:

Quantifying and partitioning evapotranspiration (ET) into evaporation (E) and transpiration (T) is challenging but important for interpreting vegetation effects on the water balance. We applied a model based on the theory of maximum entropy production (MEP) to estimate ET for shrubs for the first time in a low-energy humid headwater catchment in the Scottish Highlands. In total, 53% of rainfall over the growing season was returned to the atmosphere through ET (59±2% as transpiration), with 22% of rainfall ascribed to interception loss and understory ET. The remainder of rainfall percolated below the rooting zone. The MEP model showed good capability for total ET estimation, in addition to providing a first approximation for distinguishing E and T in such ecosystems. This study shows that this simple and low-cost approach has potential for local to regional ET estimation with availability of high-resolution hydroclimatic data. Limitations of the approach are also discussed.


ET_partition_validation.jpg



https://blog.sciencenet.cn/blog-700639-1080219.html

上一篇:苏格兰源头流域赤松对环境变化的响应及对水量平衡的影响研究
下一篇:地表-地下耦合模型研究地下水在源头流域产流过程中的作用
收藏 IP: 139.133.86.*| 热度|

0

该博文允许注册用户评论 请点击登录 评论 (1 个评论)

数据加载中...
扫一扫,分享此博文

Archiver|手机版|科学网 ( 京ICP备07017567号-12 )

GMT+8, 2024-4-17 03:27

Powered by ScienceNet.cn

Copyright © 2007- 中国科学报社

返回顶部