کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10426655 908376 2005 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Finslerian Volterra-Hamilton systems in Clementsian forest succession
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Finslerian Volterra-Hamilton systems in Clementsian forest succession
چکیده انگلیسی
Use is made of F.E. Clements' classification scheme for forests to model succession. We apply an approximation procedure which allows concentration on dominant and codominant species in the model forest. Volterra-Hamilton systems (a special sort of second-order ode system) are used to model the dynamics of modular populations after J.L. Harper, who conceived of a plant as a collection of populations of various modular units (leaves, roots, flower parts, etc.). There are two timescales, one the ecological (real) one, involving classical competitive, parasitic, commensal, and mutualistic interactions in what we term an ecoscene, and a much longer timescale of primary production towards climax. The climax arises as a result of transformations along a sere. These carry one ecoscene into another, perhaps far removed in real time from the first. Mathematically, these transformations are semi-projective, consisting of a projective time-sequencing change part and an environmental part, after Clements' ideas. The main result is that there are eight types of climax ecoscenes our model allows for dominant/codominant forestry. Each conserves its primary production cost functional. All are Jacobi stable and steady states are linearly stable.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nonlinear Analysis: Real World Applications - Volume 6, Issue 5, December 2005, Pages 899-913
نویسندگان
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