Determination of the best canopy gap area on the basis of soil characteristics using the Analytical Hierarchy Process (AHP)

Kooch, Y. and Hosseini, S.M. and Mohammadi, J. and Hojjati, S.M. (2012) Determination of the best canopy gap area on the basis of soil characteristics using the Analytical Hierarchy Process (AHP). Folia Forestalia Polonica, Series A, 54 (1). pp. 15-24.

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Abstract

The assessment of canopy gap areas on the basis of soil characteristics in forest ecosystems could be one of benefit points for management of forests. This research was conducted in 20 ha areas of Experimental Forest Station of Tarbiat Modares University that is located in a temperate forest of Mazandaran province in the north of Iran. Twenty one canopy gaps with different areas were found in studied areas and classified as small (85.12 m2), medium (325.21 m2), large (512.11 m2) and very large (723.85 m 2) gaps. These areas classes of canopy gaps were assessed with respect to nine criteria (soil pH, carbon to nitrogen ratio, cation exchange capacity, phosphorus, potassium, calcium, nitrogen mineralization, microbial respiration and earthworm's biomass). Soil samples (0-45 cm depth from the gap center and edge positions) were measured in the laboratory. The Analytical Hierarchy Process (AHP) was used for assessment of canopy gap areas. This method is widely used the Multiple Criteria Decision Support (MCDS) method and perhaps the most popular in many fields, including natural resource management, especially in forest sciences. Results of AHP indicate that the maximum of local priority belongs to small areas of canopy gaps when considering all soil characteristics. However, medium, large and very large canopy gap areas have priorities, respectively. The calculated overall priority showed that with respect to considered criterias, small and medium gap areas have higher, more ideal condition in comparison to large and very large areas. AHP results emphasise that considering soil characteristics canopy gap areas should be less than 400 m2 in Hyrcanian forests of Iran. Also, AHP can be introduced as an effective instrument in decision-making processes for investment planning and prioritization in compliance with environmental regulations.

Item Type: Article
Additional Information: cited By
Uncontrolled Keywords: analytical hierarchy process; canopy architecture; canopy gap; compliance; deciduous forest; decision making; decision support system; detection method; ecoregion; forest canopy; forest ecosystem; forest management; forest resource; investment; mineralization; mixed forest; prioritization; soil property; temperate forest, Iran, Fagus
Subjects: WA Public Health > Public Health Education WA.18 > WA 30 Social, Economic, and Environmental factor in public health
WA Public Health > WA 30 Social, Economic, and Environmental factor in public health
Divisions: Faculty of Medicine
Depositing User: zahra bagheri .
Date Deposited: 15 Aug 2017 09:15
Last Modified: 15 Aug 2017 09:15
URI: http://eprints.skums.ac.ir/id/eprint/3035

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