Results 31 to 40 of about 8,927,155 (404)
Two-Factor Model of Soil Suction from Capillarity, Shrinkage, Adsorbed Film, and Intra-aggregate Structure [PDF]
The Open Hydrology Journal 4 (2010) 44-64, 2014 The objective of this work is to derive the soil water retention from the soil structure without curve-fitting and only using the physical parameters found irrespective of an experimental retention curve. Two key points underlie the work: (i) the soil suction at drying coincides with that of the soil intra-aggregate matrix and contributive clay; and ...
arxiv +1 more source
What Is the Range of Soil Water Density? Critical Reviews With a Unified Model
Reviews of Geophysics, 2018 The soil water density is defined as the ratio of soil water mass to soil water volume. It is a cornerstone in defining thermodynamic states of either saturated or unsaturated soils for quantifying water storage and movement in the subsurface and for ...
Chao Zhang, N. Lu
semanticscholar +1 more source
Impact of sensor placement in soil water estimation: A real-case study [PDF]
, 2022 One of the essential elements in implementing a closed-loop irrigation system is soil moisture estimation based on a limited number of available sensors. One associated problem is the determination of the optimal locations to install the sensors such that good soil moisture estimation can be obtained.
arxiv +1 more source
A modification of the mixed form of Richards equation and its application in vertically inhomogeneous soils [PDF]
, 2011 Recently, new soil data maps were developed, which include vertical soil properties like soil type. Implementing those into a multilayer Soil-Vegetation-Atmosphere-Transfer (SVAT) scheme, discontinuities in the water content occur at the interface ...
Ahrens, Bodo, Kalinka, Frank
core +2 more sources
Turkish Journal of Agriculture: Food Science and Technology, 2015 Cultivation of field crops is a challenge and risky business in sloping areas. A study was conducted as a demonstration model for the sloppy lands of Fateh Jang, Pakistan.
Obaid ur Rehman +4 more
doaj +1 more source
Characterization of cowpea to harvest rainwater for wheat in semiarid conditions
Spanish Journal of Agricultural Research, 2021 Aim of study: A field experiment was executed, under rainfed conditions from 2014-15 to 2017-18, to study the role of cowpea (Vigna unguiculata L.) in rainwater harvesting to enhance the wheat (Triticum aestivum L.) yield.
Muhammad R. Sajjad +8 more
doaj +1 more source
, 2004 This resource is one among many in the UMSLCAB open dataset at IRL.UMSL.edu/CABhttps://irl.umsl.edu/cab/1513/thumbnail ...
Jefferson County Soil and Water Cons District
core +4 more sources
Variation in Tree Species Ability to Capture and Retain Airborne Fine Particulate Matter (PM2.5)
Scientific Reports, 2017 Human health risks caused by PM2.5 raise awareness to the role of trees as bio-filters of urban air pollution, but not all species are equally capable of filtering the air. The objectives of this current study were: (1) to determine the foliar traits for
Lixin Chen +4 more
doaj +1 more source
Ecological Processes, 2019 Background Evaluation of carbon (C), nitrogen (N), and phosphorus (P) ratios in aquatic and terrestrial ecosystems can advance our understanding of biological processes, nutrient cycling, and the fate of organic matter (OM) in these ecosystems ...
Paul Julian +7 more
doaj +1 more source
Testing plant use of mobile vs immobile soil water sources using stable isotope experiments.
New Phytologist, 2017 We tested for isotope exchange between bound (immobile) and mobile soil water, and whether there is isotope fractionation during plant water uptake. These are critical assumptions to the formulation of the 'two water worlds' hypothesis based on isotope ...
A. I. Vargas +3 more
semanticscholar +1 more source