نتایج جستجو برای: moisture variation
تعداد نتایج: 333904 فیلتر نتایج به سال:
water is one of the most vital constituents in plants. in this research, for an estimation of leaf moisture content, the variation of capacitance was employed. the variations were measured via designed and manufactured capacitive sensors. the objective of the research was to estimate leaf moisture content by measuring its capacitance for five agronomic crops. experiments for measuring leaf capa...
maximum values occurring at mean moisture contents of 0.17 cm 3 /cm 3 and 0.19 cm 3 /cm 3 for the 800 m and 50-km scale, respectively. Based on these data, they derived empirical relationships between the coefficient of variation and the mean soil moisture content in order to estimate the uncertainty in field observations of mean moisture content. The authors are to be commended for providing t...
[1] In dryland ecosystems, understanding the effects of heterogeneity in soil moisture and geophysical properties on vegetation structure and dynamics poses a suite of challenging research questions. Heterogeneity in soil depth can affect resource availability and the subsequent organization of woody vegetation, while spatiotemporal variation in soil moisture can reveal important ecohydrologica...
A combined experimental and analytic approach to moisture diffusion analysis (MDA) has evolved in proof of principle form as a new instrument termed a ~ist~re ~rof~lometer .. The ob~ec~ive in m?isture profilometry is the quantitative analysis of the spat1al d1str1but~on of m?1stu~e.w1th1n compos1tes . and definition of localized internal stress fields. An electrolyt1c cell 1s ut1l1zed to record...
Ecohydrology 2017;e1825. https://doi.org/10.1002/eco.1825 Abstract Topography may mitigate drought effects on vegetation along a hillslope gradient through redistribution of soil moisture. We examined the interaction of topography, climate, soil moisture, and transpiration in a low‐elevation, mixed‐hardwood forest in the southern Appalachian Mountains. The effects of meteorological variation (w...
A dynamical forecast model is applied to study thlJ moisture variation in the planetary boundary layer under the chosen synoptic condition. The observed l2-hour moisture patterns are compa.red with the forecast patterns. Four numerical experiments, using the same initial data on 0600 CST, March 25, 1967, are made. However, in one case only the effects of evaporation from the Gulf of Mexico, and...
There are many historic buildings whose construction is based on timber frame walls. Most buildings built during the nineteenth and early twentieth centuries were based on timber frame walls with vertical support elements. These timber frame elements are affected by their moisture content and by the passage of time. If the interaction of the timber frame walls with hygrothermal fluctuations wer...
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