The effect of soil surface height pruning on quantitative and qualitative characteristics of Haloxylon plantations of Sabzevar

Document Type : Research article

Authors

1 Environment Expert, Faculty of Natural Resources, Allameh Mohaddes Nouri University, Noor, Iran

2 Prof., Department of Forestry, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor, Iran

3 Assistant Prof., Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran

Abstract

The determination of effective parameters on survival, growth and vitality of Haloxylon shrubs is essential for sustainable management of Haloxylon plantations of desert areas. This research aimed to investigate of soil surface height pruning effect on ecological situation of Haloxylon plantations in Hares Abad region of Sabzevar. Six sample plots (20 m × 20 m) were chosen systematic-randomly in two fields (control field and pruned field). In each plot, height, crown diameter, number of secondary branches separated from collar and vitality of Haloxylon shrubs and also number, height and crown diameter of auxiliary regenerated species were measured. The results indicated that annual increment of height and crown diameter and number of secondary branches separated from collar in pruned shrubs were significantly greater than control shrubs. Number of trees in hectare and number of auxiliary regenerated species was also higher in pruned field than control but without significant difference. Furthermore, questionnaires were filled out by regain residents for assessment of environmental impacts of these Haloxylon plantations. The results of this opinion poll showed that Haloxylon plantations have had positive effects for residents of Hares Abad region.

Keywords

References

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