Abstract
The climate situation is one of the main factors for developing of green spaces in semiarid regions, because the first priority of people for available water will be for living and agricultural products. In such big semiarid zones in the world, each year different projects are launched in order to reduction of irrigation costs and development of green spaces. The objective of this research was to find a practical way for afforestation development and optimal and viable solution for creation and irrigation of planting in semiarid zones. This research has been continued for 1 year and 4 broadleaves and 4 confers were evaluated under 5 treatments by the use of superabsorbent material, bearing the trade market as Stockosorb 300. The results of the research proved that the type of treatment which had been employed had a positive effect on the aliveness of the saplings with reduction of minimum 50% water irrigation for many species. The statistical analyses indicated tree species under treatments are significantly different that Robinia pseudoacaccia proved to be the best species and Cupressus sempervirens the worst.
Highlights
According to the climatologic categorizations, Iran has arid climate and the average annual precipitation in this country is less than 250 mm
The results revealed that, from among the different percentages of the super absorbent polymer, the 0.3 weight percent was the most effective in enhancing the porosity of the soil
The results indicated positive effects of the larger amounts of super absorbent on the properties which were under study, especially the height of the field corns and the dry biomass of these plants[1]
Summary
According to the climatologic categorizations, Iran has arid climate and the average annual precipitation in this country is less than 250 mm. Soil stabilization and development of planting are one of the appropriate ways to tackle the problem and prevent furtherance of it. To accomplish this important objective, arid and semiarid countries of the world have resolved to search and devise new ways of planting which bear lower costs of irrigation. Using hygroscopic polymers in the plantation of saplings is one the novel methods which have been adopted in the recent years These hydrophilic polymers are capable of absorbing a plenty of water (as much as 100 times their weight) and turn it into a gelatinous material and in water shortage (deficit) and during dry spells, the plant is gradually provided with the water stored in the polymer
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