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Results 1 - 10 from 117 for soil salinity in 0.178 sec.

Environmental Restoration: Microcatchment Water Harvesting
(Shanan and Tadmor, 1979). Microcatchments have been used successfully with domesticated ... infiltration capacity of a particular area include: the moisture content of the soil; macro-pores in the soil as a result of decaying roots or burrowing animals; and the compaction ...
www.ecocomposite.org

USGS Patuxent Wildlife Research Center SIS Project
Physical (hydrology, water table level, surface flooding, marsh development), chemical (soil salinity, soil sulfide), and ecological (vegetation, nekton, waterbirds, cryptic birds, marsh invertebrates, mosquito production) factors will be ...
www.pwrc.usgs.gov

Recycled Organics Unit
Research into direct soil injection indicates that this process can increase soil organic matter and the availability of nutrients in soil and may also increase soil microbial activity. However, ... environmental impacts via odours, attraction of pests, soil salinity and/or leachate into rivers or groundwater. More information on direct soil injection can be found in the report 'Food ...
www.recycledorganics.com

Directory of arid lands research institutions 1995
Library Collection of approximately 5,000 books, concentrating on botany, forestry, horticulture, soil science, genetics, environment and agroforestry; microfiche--reading Facilities Computer catalog Yes, using Foxpro, ... and vegetation of playa salt lake, (4) effect of Tamarix and Atriplex on soil salinity, (5) mining potential of Zarand-Kerman, (6) comparison of Atriplex growth in different ...
fao.org

The Contribution of Root Accessible Water Tables Towards the Irrigation Requirements of Crops
This, together with observed crop losses caused by waterlogging and increased soil salinity, motivated this investigation. The objectives of this ... could be predicted. The one dimensional finite difference approach was incorporated into the Soil Water Balance (SWB) model of Annandale et al. (1999), whereas the upward cascading ...
fwr.org

THE ECONOMIC IMPACT OF CHANGING WATER QUALITY ON IRRIGATED AGRICULTURE IN THE LOWER VAAL AND RIET RIVERS
By understanding the full dynamics and interactions between irrigation water quality and the soil salinity status on crop yield over irrigated time, mistakes made in the past by ... between soil saturation extract salinity (for which yield response data is available) and soil solution salinity. (ii) the deviation of the salinity of the soil saturation extract from the mean soil profile salinity, to ...
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FAO/AGL - Global Network on Integrated Soil Management for Sustainable Use of Salt-affected Soils
Global Network on Integrated Soil Management for Sustainable Use of Salt-affected Soils FAO Home Agriculture Land Water WAICENT FAO Search Français Español Introduction Network info Salinity issues References Contacts ... hectares of arable land every minute because of soil salinity. Images: Saline soil, Sodic Soil, Profile in Sodic Soil Based on the FAO/Unesco Soil Map of the World, the total area ...
fao.org

Water Quality Guidelines Online - Flow diagram for evaluating salinity and sodicity impacts of irrigation water
Sodicity degrades soil structure by breaking down clay aggregates, which makes the soil more erodible and less permeable to water, and reduces plant growth. The effects of salinity ... zone salinity as outlined in this section. Average root zone salinity is considered the key limitation to plant growth in response to salinity and sodicity levels in irrigation water. However, poor soil ...
www.ozh2o.com

Water Quality Guidelines Online - Tolerance of plants to salinity in Irrigation Water
No. W55. Shown below are the salinity (EC) thresholds for various common plants. Salt effects plants through the roots. The soil type changes the relationship between the salinity ...
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Acacia saligna
Center of Diversity, orange wattle, or cvs thereof, is reported to tolerate alkalinity, drought, heavy soil, poor soil, salinity, salt spray, sand, shade, slope, waterlogging, and weeds. (2n = 26) Distribution Acacia saligna ... . It occurs on poor acid or calcareous sands, under the most dry and adverse soil conditions, in moderately heavy clays and a range of podzols (NAS, 1980a). Cultivation Seeds ...
www.hort.purdue.edu