Evaluation of the crisis severity in forests of Kohgiluye and Boyerahmad province (Case study: Tang-e Solak)

Document Type : Research article

Authors

1 Ph.D. Graduated in Forestry and Forest Economic, Faculty of Natural Resources, Lorestan University, Khoramabad, Iran

2 Assistant Prof., Department of Forestry, Faculty of Natural Resources, Lorestan University, Khoramabad, Iran.

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

Abstract

In this study, some forest biometric parameters were studied to evaluate the decline severity in Tang-e Solak forest area in Kohgiluyeh and Boyerahmad province. Hundred plots of one hectare each were used. The Fierke method was used to evaluate the decline severity. In this method, crown condition classes (CCC) and Basal Emergence hole Classes (BEC) are divided into 6 groups. Finally Rapid Estimation Index (REI) was calculated by aggregating CCC and BEC. REI was then classified into tree classes for determining the dieback severity. The result of this study showed that 88% of broad-leaved trees are in weak severity, while only 12% include medium severity of decline.
 

Keywords

References

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Iranian Journal of Forest and Poplar Research
Volume 24, Issue 4 - Serial Number 66
January 2017
Pages 674-665

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