کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6371700 | 1318986 | 2008 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Allometric scaling laws for water uptake by plant roots
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Allometric scaling laws for water uptake by plant roots Allometric scaling laws for water uptake by plant roots](/preview/png/6371700.png)
چکیده انگلیسی
This paper develops scaling laws for plant roots of any arbitrary volume and branching configuration that maximize water uptake. Water uptake can occur along any part of the root network, and thus there is no branch-to-branch fluid conservation. Maximizing water uptake, therefore, involves balancing two flows that are inversely related: axial and radial conductivity. The scaling laws are tested against the root data of 1759 plants from 77 herbaceous species, and compared with those from the WBE model. I further discuss whether the scaling laws are invariant to soil water distribution. A summary of some of the results follows. (1) The optimal radius for a single root (no branches) scales with volume as râvolume28+a(0
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Theoretical Biology - Volume 251, Issue 1, 7 March 2008, Pages 35-59
Journal: Journal of Theoretical Biology - Volume 251, Issue 1, 7 March 2008, Pages 35-59
نویسندگان
Mario Biondini,