The use of plant tissue silica content for estimating transpiration
The use of plant tissue silica content for estimating transpiration
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DOI：
10.1016/j.ecoleng.2005.06.003
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发表时间：
2005-11-01
影响因子：
3.8
通讯作者：
Schwab, AP
中科院分区：
文献类型：
--
作者：
Euliss, KW;Dorsey, BL;Schwab, AP
饱和土壤、沉积物和类似基质的脱水是一个新出现的问题，需要低成本的解决方案。植物具有通过蒸腾作用从其生长的基质中去除水分的能力，可用于帮助去除水分。然而，需要一种快速筛选工具来识别可以在高含水量基质中生长的具有高蒸腾速率的植物物种。本研究探讨了植物二氧化硅含量与植物蒸腾速率之间的关系。在两种土壤中种植了多种植物物种和类型，以了解二氧化硅与蒸腾作用之间的关系。使用红外气体分析仪 (IRGA) 定量蒸腾速率，并使用酸不溶性灰分定量二氧化硅，确定了植物二氧化硅含量和植物蒸腾速率之间的统计显着关系 (p < 0.01)。植物类型（湿地、草或禾本科植物）也是植物蒸腾速率的重要指标（p < 0.01）。这些工具与植物生长特性的知识相结合，可用于识别非常适合特定脱水应用的植物物种。 (c) 2005 Elsevier B.V. 保留所有权利。
Dewatering of saturated soils, sediments, and similar substrates is an emerging issue that requires a low cost solution. Plants have the ability to remove water from the substrate in which they grow through transpiration and could be used to aid in moisture removal. However, the need exists for a rapid screening tool to identify plant species with high transpiration rates that can grow in high water content substrates. This study examines the relationship between plant silica content and plant transpiration rate. A variety of plant species and types were grown in two soils to understand the relationship between silica and transpiration. Using an Infrared Gas Analyzer (IRGA) to quantify transpiration rate and acid-insoluble ash to quantify silica, a statistically significant relationship (p < 0.01) between plant silica content and plant transpiration rate was determined. Plant type (wetland, grass, or forb) also was a significant (p < 0.01) indicator of plant transpiration rate. These tools combined with knowledge of plant growth characteristics can be used in identifying plant species well-suited for particular dewatering applications. (c) 2005 Elsevier B.V. All rights reserved.