Extraction term models of soil moisture use by transpiring plants.

Extraction term models of soil moisture use by transpiring plants.
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DOI:
10.1029/wr006i005p01346
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发表时间:
1970-10
影响因子:
5.4
通讯作者:
F. Molz;I. Remson
F. Molz;I. Remson
中科院分区:
地球科学1区
文献类型:
--
作者:
F. Molz;I. Remson

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开发了一个数学模型来描述蒸腾植物根部从土壤中去除水分的过程。该模型在一维土壤水分流方程中使用宏观提取项。它描述了植物去除水分和引起的水分通过土壤的运动。使用基于道格拉斯-琼斯预测校正器方法的数值程序来求解该模型,并将解与实验数据进行比较。结果表明,提取项模型在计算和物理上都是可行的,并且可以深入了解整个水分提取过程的力学。
A mathematical model is developed describing moisture removal from soil by the roots of transpiring plants. The model uses a macroscopic extraction term in the one-dimensional soil moisture flow equation. It describes both moisture removal by the plant and induced moisture movement through the soil. A numerical procedure based on the Douglas-Jones predictor-corrector method is used to solve the model, and solutions are compared with experimental data. The results indicate that extraction term models are computationally and physically feasible and give insight into the mechanics of the overall moisture extraction process.