Results 71 to 80 of about 435 (159)

HUMEDAD CRÍTICA Y REPELENCIA AL AGUA EN ANDISOLES COLOMBIANOS BAJO COBERTURA DE Pinus patula Schltdl y Cham CRITICAL MOISTURE AND WATER REPELLENCY OF COLOMBIAN ANDISOLS COVERED WITH Pinus patula Schltdl and Cham

open access: yesRevista Facultad Nacional de Agronomía Medellín, 2005
En un lote con Andisoles bajo cobertura de Pinus patula Schltdl y Cham se ubicaron 4 transectos sobre los cuales se hizo un muestreo horizontal cada 5 cm, en 4 profundidades, con el fin de establecer si había una zona de transición de humedad crítica en ...
Daniel Francisco Jaramillo Jaramillo
doaj  

微咸水与再生水混灌对土壤特性的影响与灌溉效应评估

open access: yesShuitu Baochi Xuebao, 2022
为了探讨淡水资源不足地区微咸水的合理利用方式。通过盆栽试验, 以清水灌溉为对照, 研究不同比例微咸水与再生水混合灌溉对水盐、水溶性离子、滴水穿透时间WDPT、有机质以及酶活性的影响, 并利用第二代生物综合响应指数法(IBRv2)对微咸水与再生水混灌效应进行评价。结果表明: (1)与再生水灌溉(T1)相比, 随着混合溶液中微咸水比重的升高, 土壤含水率和含盐量逐渐升高且差异显著(P<0.05)。(2)与T1处理相比, 随着混合溶液中微咸水比重的升高, 土壤K+、Ca2+含量呈降低趋势, Na+、Cl ...
刘春成   +4 more
doaj  

Application of Semi-Hydrophobic Layers to Decrease Bare Soil Evaporation

open access: yes, 2019
Evaporative water loss from bare agricultural soils is a primary area of water conservation research. Mulching is the commonly utilized method to decrease evaporative water loss.
Barnes, Jesse Lee
core   +1 more source

Relationships of water repellency to soil properties for soils of southwestern Australia [PDF]

open access: yes, 1997
In order predict the susceptibility of soils to the development of water repellency, it is necessary to identify predictive relationships between water repellence and commonly measured soil properties. This paper evaluates these relationships for diverse
McKissock, I.   +3 more
core  

Impacts of thinning of a Mediterranean oak forest on soil properties influencing water infiltration

open access: yesJournal of Hydrology and Hydromechanics, 2017
In Mediterranean ecosystems, special attention needs to be paid to forest–water relationships due to water scarcity. In this context, Adaptive Forest Management (AFM) has the objective to establish how forest resources have to be managed with regards to ...
Di Prima Simone   +9 more
doaj   +1 more source

Characterization of Soil Water Repellency for Agricultural Farms with Different Soil Management Systems [PDF]

open access: yes, 2017
Soil water repellency (SWR) is a phenomenon that can reduce water infiltration into the soil. Generally, the quantity and quality of soil organic matter and the soil moisture content will govern the severity of SWR.
Wijewardana, Y.N.S.   +17 more
core   +1 more source

Time-dependent contact angle and repellency persistence in water-repellent Japanese forest soils in relation to droplet geometry and line tension

open access: yesJournal of Hydrology and Hydromechanics
Water repellency (WR) restricts the spontaneous wetting of soil and lowers the affinity between soil and water. Studies focused on temporal alteration of droplet contact angles on hydrophobic soil substrates and their relation to persistence of WR are ...
Leelamanie D.A.L., Maeda Morihiro
doaj   +1 more source

Influência da concentração de extratos hidrofóbicos na repelência à água em solos arenosos

open access: yesPesquisa Florestal Brasileira, 2011
A repelência à água é estudada em vários solos do  mundo, sendo os casos mais extremos encontrados  em solos arenosos. Acredita-se que a repelência à  água seja causada pelo recobrimento das partículas do  solo por compostos hidrofóbicos derivados da ...
Yorleni Chang Cambronero   +3 more
doaj  

Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils

open access: yesJournal of Hydrology and Hydromechanics, 2017
Assessment of soil water repellency (SWR) was conducted in the decomposed organic floor layer (duff) and in the mineral soil layer of two Mediterranean pine forests, one in Italy and the other in Spain, by the widely-used water drop penetration time ...
Alagna Vincenzo   +4 more
doaj   +1 more source

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