کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9443657 | 1303545 | 2005 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modelling plant resource allocation and growth partitioning in response to environmental heterogeneity
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Modelling plant resource allocation and growth partitioning in response to environmental heterogeneity Modelling plant resource allocation and growth partitioning in response to environmental heterogeneity](/preview/png/9443657.png)
چکیده انگلیسی
Plant morphological adjustment in response to spatial resource heterogeneity is an important factor that determines the outcomes of plant-plant and plant-environment interactions. In this study, a dynamic model of resource allocation and growth partitioning at the whole-plant level is presented. The aim is to suggest a mechanism by which plants are capable of modifying their resource allocation to favour the growth of their growing parts sited in resource-rich patches. In this model, an individual plant is treated as a population of relatively independent subunits competing for internal resources. The growth decision of individual shoot and root subunits depends on their local endogenous nutrient status. The allocation of nutrients to different shoot parts and root parts is determined by the structure of the vascular networks. No specific partitioning functions and driving coefficients are introduced in the model to coordinate resource allocation and growth partitioning at the whole-plant level. Vascular tissues acquire resources from the nutrient flow passing through them to grow and maintain their activities. The simulation results show that, based on simple rules of nutrient supply, transport and utilization, plants are able to integrate activities at the whole-plant level to allocate proportionally more growth to their growing parts in the most favourable positions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Modelling - Volume 181, Issue 1, 10 January 2005, Pages 59-77
Journal: Ecological Modelling - Volume 181, Issue 1, 10 January 2005, Pages 59-77
نویسندگان
Zongjian Yang, David J. Midmore,