Modeling of Beta Diversity along a Gradient of Disturbance and Environmental Factors in Hyrcanian Forests-Kheyrud Kenar, Nowshahr

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Erfani Malihe; DANEHKAR AFSHIN; SALMANMAHINY ABDOLRASSOUL; ETEMAD VAHID

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Journal: JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY Year:2021 | Volume:23 | Issue:1 (104) Page(s): 145-158

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Title

Modeling of Beta Diversity along a Gradient of Disturbance and Environmental Factors in Hyrcanian Forests-Kheyrud Kenar, Nowshahr

Author(s)

Erfani Malihe | DANEHKAR AFSHIN | SALMANMAHINY ABDOLRASSOUL | ETEMAD VAHID | Issue Writer Certificate

Keywords

Species DiversityQ1

Beta DiversityQ1

DisturbanceQ1

Environmental HeterogeneityQ1

ModelingQ2

Abstract

Introduction: Knowledge of distribution patterns and maintenance mechanisms of biodiversity along environmental and Disturbance gradients is essential to develop biodiversity conservation strategies. In this study, Modeling of Beta Diversity construct was performed at Kheyrud forests of Noshahr. Material and Methods: Modeling of Beta Diversity was conducted using 7 indicators for Disturbance construct, 4 indicators for Environmental Heterogeneity, 10 indicators for soil, and 5 indicators for land cover and crown percent construct. All species of vascular plants at 100 plots and 6 homogeneous zones were recorded along Disturbance gradients in cluster sampling. Beta Diversity indices were calculated for each cluster and with other indicators of constructs were entered in structural equation Modeling. Results: Results showed that the remaining indicators in the model were able to explain the variation in Beta Diversity (R2= 0. 761). The predictive relevance of the model for the Beta Diversity construct was very large (Q2= 0. 422). Discussion and Conclusions: The most important Disturbance indicators were area accessibility, number of management plans for harvest, reverse of the years since last harvest, number of grazing days per year and livestock density per hectare, respectively. Effective soil indicators for Beta Diversity were soil organic matter content, nitrogen and percentage of calcium carbonate of the soil, effective bulk density and soil potassium levels, respectively. Canopy cover and litter cover had negative influence on Beta Diversity. Environmental Heterogeneity had a significant moderator role in reduction of Disturbance influence on Beta Diversity. Because of the scale of Disturbance and Environmental Heterogeneity, Beta Diversity is useful for comparing communities.

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APA: Copy

Erfani, Malihe, DANEHKAR, AFSHIN, SALMANMAHINY, ABDOLRASSOUL, & ETEMAD, VAHID. (2021). Modeling of Beta Diversity along a Gradient of Disturbance and Environmental Factors in Hyrcanian Forests-Kheyrud Kenar, Nowshahr. JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 23(1 (104) ), 145-158. SID. https://sid.ir/paper/389986/en

Vancouver: Copy

Erfani Malihe, DANEHKAR AFSHIN, SALMANMAHINY ABDOLRASSOUL, ETEMAD VAHID. Modeling of Beta Diversity along a Gradient of Disturbance and Environmental Factors in Hyrcanian Forests-Kheyrud Kenar, Nowshahr. JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY[Internet]. 2021;23(1 (104) ):145-158. Available from: https://sid.ir/paper/389986/en

IEEE: Copy

Malihe Erfani, AFSHIN DANEHKAR, ABDOLRASSOUL SALMANMAHINY, and VAHID ETEMAD, “Modeling of Beta Diversity along a Gradient of Disturbance and Environmental Factors in Hyrcanian Forests-Kheyrud Kenar, Nowshahr,” JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, vol. 23, no. 1 (104) , pp. 145–158, 2021, [Online]. Available: https://sid.ir/paper/389986/en

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