کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4498331 | 1318976 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Facilitation, competition, and vegetation patchiness: From scale free distribution to patterns
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Facilitation, competition, and vegetation patchiness: From scale free distribution to patterns Facilitation, competition, and vegetation patchiness: From scale free distribution to patterns](/preview/png/4498331.png)
چکیده انگلیسی
A new technique for the modeling of perennial vegetation patchiness in the arid/semiarid climatic zone is suggested. Incorporating the stochasticity that affects life history of seedlings and the deterministic dynamics of soil moisture and biomass, this model is flexible enough to yield qualitatively different forms of spatial organization. In the facilitation-dominated regime, scale free distribution of patch sizes is observed, in correspondence with recent field studies. In the competition controlled case, on the other hand, power-law statistics is valid up to a cutoff, and an intrinsic length scale appears.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Theoretical Biology - Volume 253, Issue 4, 21 August 2008, Pages 838-842
Journal: Journal of Theoretical Biology - Volume 253, Issue 4, 21 August 2008, Pages 838-842
نویسندگان
Alon Manor, Nadav M. Shnerb,