نتایج جستجو برای: hazel index under both moisture conditions

تعداد نتایج: 3437628  

2013
Amor V. M. Ines Binayak P. Mohanty Yongchul Shin

[1] We present an unmixing method, based on genetic algorithm-soil-vegetationatmosphere-transfer modeling to extract subgrid information of soil and vegetation from remotely sensed soil moisture (downscaled; e.g., soil hydraulic properties, area fractions of soil-vegetation combinations, and unmixed soil moisture time series) that most land surface models use. The unmixing method was evaluated ...

Journal: :تحقیقات مهندسی کشاورزی 0
کامیار نوروزیان دانش آموخته کارشناسی ارشد سازه های آبی دانشگاه صنعتی اصفهان نادر عباسی دانشیار بخش تحقیقات آبیاری و زهکشی مؤسسه تحقیقات فنی و مهندسی کشاورزی جهانگیر عابدی کوپایی استاد گروه مهندسی آب دانشگاه صنعتی اصفهان

different additives have been considered to improve stabilization of the engineering properties of fine-grained soil. the present study investigated the effect of the addition of sewage sludge ash on the compressive strength of clay soil at optimum moisture content and under saturated conditions. the four treatments tested were the addition of 0%, 5%, 10% and 15% sewage sludge ash to clayey soi...

Journal: :Annals of botany 2009
Robert F Reynolds William L Bauerle Ying Wang

BACKGROUND AND AIMS Deciduous trees have a seasonal carbon dioxide exchange pattern that is attributed to changes in leaf biochemical properties. However, it is not known if the pattern in leaf biochemical properties - maximum Rubisco carboxylation (V(cmax)) and electron transport (J(max)) - differ between species. This study explored whether a general pattern of changes in V(cmax), J(max), and...

2008
A. Mubashar I. A. Ashcroft G. W. Critchlow A. D. Crocombe

This paper presents a methodology for predicting moisture concentration in an epoxy adhesive under cyclic moisture absorption-desorption conditions. The diffusion characteristics of the adhesive were determined by gravimetric experiments under cyclic moisture conditions and the dependence of diffusion coefficient and saturated mass uptake on moisture history was determined. Non-Fickian moisture...

Journal: :تحقیقات مهندسی کشاورزی 0
عادل میرمجیدی عضو هیئت علمی مؤسسه تحقیقات فنی و مهندسی کشاورزی رامین حسین خواه عضو هیئت علمی مؤسسه تحقیقات فنی و مهندسی کشاورزی هما بهمدی عضو هیئت علمی مؤسسه تحقیقات فنی و مهندسی کشاورزی

rapeseed is one of the important oilseeds, as its oil ranks second in the world after soybean. the rapeseed cultivation has been increased recently in iran. drying of seeds to a safe moisture level is necessary for storage of oilseeds before processing. rapeseed drying conditions affect the seed quality, total oil and germination capacity. hence in this research the effects of different tempera...

2007
P. E. DENNISON

Normalized Difference Vegetation Index (NDVI) and Normalized Difference Water Index (NDWI) were compared for monitoring live fuel moisture in a shrubland ecosystem. Both indices were calculated from 500 m spatial resolution Moderate Resolution Imaging Spectroradiometer (MODIS) reflectance data covering a 33 month period from 2000 to 2002. Both NDVI and NDWI were positively correlated with live ...

2004
Jeffrey P. Walker Garry R. Willgoose Jetse D. Kalma

A number of automated techniques for point measurement of soil moisture content have been developed to an operational level over the past few decades. While each of those techniques have been individually evaluated by the thermogravimetric (oven drying and weighing) method, typically under laboratory conditions, there have been few studies which have made a direct comparison between the various...

Journal: :Ecological Informatics 2010
Yongqiang Liu John Stanturf Scott Goodrick

a r t i c l e i n f o Keywords: Regional climate modeling Wildfire potential Drought KBDI Soil moisture NDVI Regional climate modeling is a technique for simulating high-resolution physical processes in the atmosphere, soil and vegetation. It can be used to evaluate wildfire potential by either providing meteorological conditions for computation of fire indices or predicting soil moisture as a ...

2009
Chunling Tang Thomas C. Piechota

This research investigates the interannual variability of soil moisture as related to large-scale climate variability and also evaluates the spatial and temporal variability of modeled deep layer (40–140 cm) soil moisture in the Upper Colorado River Basin (UCRB). A three layers hydrological model VIC-3L (Variable Infiltration Capacity Model – 3 layers) was used to generate soil moisture in the ...

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