نتایج جستجو برای: available water content

تعداد نتایج: 1429636  

2016
Silvia Imhoff Alvaro Pires da Silva Pablo J Ghiberto Cássio A Tormena Miguel A Pilatti Paulo L Libardi

Mollisols of Santa Fe have different tilth and load support capacity. Despite the importance of these attributes to achieve a sustainable crop production, few information is available. The objectives of this study are i) to assess soil physical indicators related to plant growth and to soil mechanical behavior; and ii) to establish relationships to estimate the impact of soil loading on the soi...

محمدی, کورش ,

In this paper, a numerical solution is presented for one-dimensional unsaturated flows in the subsurface. Water flow in the subsurface, however, is highly nonlinear and in most cases, exact analytical solutions are impossible. The method of reference-operators has been used to formulate a discrete model of the continuum physical system. Many of the standard finite difference methods and also th...

2010
G. J. Engelhart S. N. Pandis

The composition and physical properties of aged atmospheric aerosol were characterized at a remote sampling site on the northern coast of Crete, Greece during the Finokalia Aerosol Measurement Experiment in May 2008 (FAME-2008). A reduced Dry-Ambient Aerosol Size Spectrometer (DAASS) was deployed to measure the aerosol water content and volumetric growth factor of fine particulate matter. The p...

2013
Siamak Khorram

I '!be objective of this investigationl is to design a general remote sensing-aided information .system to provide the estimates of two important inputs to .water yieid forecast roodels. These input paraJreters are snow areal extent, snow water content, and cost-effectiveness analysis applied to snow water content-est1ma.tion. The techniques under development in this investigation are being tes...

Journal: :Tree physiology 2007
Peter A Beedlow David T Tingey Ronald S Waschmann Donald L Phillips Mark G Johnson

Purportedly, large Douglas-fir trees in the American Pacific Northwest use water stored in bole tissues to ameliorate the effects of seasonal summer drought, the water content of bole tissues being drawn down over the summer months and replenished during the winter. Continuous monitoring of bole relative water content (RWC) in two 110-120-year-old Douglas-fir trees with ThetaProbe impedance dev...

2004
F Olivier A Singels

Effective irrigation scheduling is a prerequisite to optimising the use of expensive irrigation water for sugarcane production in South Africa. Accurate irrigation scheduling is not widely practised in the sugar industry despite the many scheduling tools available to sugarcane growers. This leads to very low water use efficiencies (WUE) of approximately 50% of what could be achieved theoretical...

قناتی, فائزه, مدرس ثانوی, سیدعلی‌محمد , پوردهقان, مونا, کرمی, سمیه,

In order to investigate the effect of Hexaconazole (HEX) on quantitative and qualitative characteristics of two soybean (Glycine max L.) cultivars under water deficit stress, an experiment was conducted in the Faculty of Agriculture of Tarbiat Modares University in the year 2010-2011 as a factorial experiment in randomized complete block design arrangement. Factors examined in this study were s...

Journal: :international journal of environmental research 2012
j. volmajer valh a. majcen le marechal b. križanec s. vajnhandl

the trend of sustainable use of available water resources encourages textile finishing enterprisesto implement efficient wastewater treatment technologies that enable water recycling, and not just it’sdischarging into the local wastewater treatment plants (wwtp). this paper presents the results obtainedfrom the h2o2/uv treatment of wastewater from slovene textile finishing company. laboratory s...

Journal: :pollution 2015
k. swarnalatha bindhu radhakrishnan

phytoremediation is an eco-friendly method for removal of pollutants, which can be relied upon as a sustainable technology, if implemented under optimum conditions of plant growth. the effectiveness of water hyacinth, a topical weed, for the removal of zinc (zn) and chromium (cr) ions from aqueous solutions has been presented in this article. the potential of this plant in removing metals by ph...

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