کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9467300 | 1316497 | 2005 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Predicting the effects of soil water content and soil water potential on transpiration of maize
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
An improved steady-state soil-vegetation-atmosphere transfer model was applied to three types of soils (loess, loamy soil, and sandy soil) and three typical daily meteorological conditions (a sunny day, a cloudy day, and an overcast day) to calculate the relationships between maize transpiration rates and an average soil water content or soil water potential. The model proposed can simulate the soil-plant-atmosphere continuum allowing to express soil, plant and atmospheric properties in detail, and thus, calculate the relationship between transpiration rate and average soil water content or soil water potential in the root zone. Atmospheric factors strongly affected the ratio between the actual and potential transpiration (relative transpiration) in conditions of the water stress. On the other hand, when the soil water content was sufficiently high, the relative transpiration was practically independent of atmospheric factors. The simulated relationships between transpiration of maize, soil water content and soil water potential were found to be in a good agreement with measured data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agricultural Water Management - Volume 76, Issue 3, 10 August 2005, Pages 211-223
Journal: Agricultural Water Management - Volume 76, Issue 3, 10 August 2005, Pages 211-223
نویسندگان
V. Novák, T. Hurtalová, F. Matejka,