scholarly journals Vegetation Controls on Dryland Salinity

2018 ◽  
Vol 45 (21) ◽  
pp. 11,669-11,682 ◽  
Author(s):  
Saverio Perri ◽  
Samir Suweis ◽  
Dara Entekhabi ◽  
Annalisa Molini
Keyword(s):  
Dryland Salinity

Dryland Salinity and Ecosystem Distress Syndrome: Human Health Implications

EcoHealth ◽  
2007 ◽  
Vol 4 (1) ◽  
pp. 10-17 ◽  
Author(s):  
Andrew Jardine ◽  
Peter Speldewinde ◽  
Scott Carver ◽  
Philip Weinstein
Keyword(s):  
Human Health ◽  
Distress Syndrome ◽  
Dryland Salinity ◽  
Health Implications ◽  
Ecosystem Distress Syndrome

The systematic collection and characterisation of herbaceous forage species for recharge and discharge environments in southern Australia

2008 ◽  
Vol 48 (4) ◽  
pp. 397 ◽  
Author(s):  
S. J. Hughes ◽  
R. Snowball ◽  
K. F. M. Reed ◽  
B. Cohen ◽  
K. Gajda ◽  
...  
Keyword(s):  
Genetic Resource ◽  
Dryland Salinity ◽  
Diverse Range ◽  
Comprehensive Collection ◽  
Forage Species ◽  
Improvement Programs ◽  
Species Specific ◽  
New Germplasm ◽  
Herb Species ◽  
Systematic Collection

Australian temperate pasture Genetic Resource Centres (GRCs) co-ordinated a major program to introduce and screen herbaceous forage species. This program aims to expand the environments where such species could reduce recharge and manage discharge for the control of dryland salinity in southern Australia. The sustainability of agriculture, in Australia especially, depends on continued access to new germplasm to enable plant breeders to continue crop and forage improvement. The GRCs supported the selection and identification of promising new legume, grass and herb species as part of a national pasture evaluation program. In total, 671 species and 21 non-species-specific genera were identified as having potential to increase water use profitability of recharge lands and to improve the productivity of saline lands across a diverse range of agricultural environments in southern Australia. Through a series of activities, 201 of these species, representing legumes, herbs and grasses were identified as promising. These were then disseminated for evaluation in a range of environments across southern Australia. The progress of selected species was monitored and germplasm of the most promising 11 species and three leguminous genera was targeted for intensive acquisition and characterisation as the basis for selection and breeding. In addition to the identification and dissemination of promising species of immediate potential, a comprehensive collection of 544 native and exotic, wild and cultivated pasture species was conserved and is now available to service future plant improvement programs.

Salt source for dryland salinity - evidence from an upland catchment on the Southern Tablelands of New South Wales

Soil Research ◽  
2001 ◽  
Vol 39 (1) ◽  
pp. 39 ◽  
Author(s):  
R. I. Acworth ◽  
J. Jankowski
Keyword(s):  
New South ◽  
New South Wales ◽  
Dust Storms ◽  
Dryland Salinity ◽  
Heterogeneous Distribution ◽  
Small Catchment ◽  
South Wales ◽  
Bedrock Weathering ◽  
Salt Distribution ◽  
The Last Glacial

A detailed study involving drilling, geophysics, hydrogeochemistry, and groundwater monitoring over a 10-year period has been carried out at a small catchment south-east of Yass on the Southern Tablelands of New South Wales to investigate the source of salt causing dryland salinity. The catchment is within 2 km of the top of a regional groundwater and surface water divide and remains substantially tree covered. The investigations have found a highly heterogeneous distribution of salt, most of which is associated with swelling clay. Dispersion of this clay causes the surface features commonly associated with dryland salinity. There is no hydrogeochemical evidence to suggest evaporative or transpirative concentration of salt in the groundwater. The short flow path from the top of the catchment cannot provide a significant source of salt from bedrock weathering. An alternative model of salt accumulation is proposed with the salt imported into the catchment with silt during dust storms in the arid and windy conditions during the last glacial. The management implications of this model of salt distribution and the associated dryland salinity development are discussed.

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