Temat: ecological method - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Delphi technique for generating criteria and indicators in monitoring ecotourism sustainability in Northern forests of Iran: Case study on Dohezar and Sehezar Watersheds
Autorzy:: Mariapan, Manohar
Ismail, Mohd Hasmadi
Barzekar, Godratollah
Aziz, Azlizam
Wydawca:: Instytut Badawczy Leśnictwa (Forest Research Institute), Komitet Nauk Leśnych PAN (The Committee on Forestry Sciences of the Polish Academy of Sciences)
Opis:: Przemysław Szmit
Ecotourism is widely accepted as the most effective type of sustainable development. For monitoring ecotourism sustainability in the Northern forest of Iran, a study was designed to help identifying criteria and indicators (C&I) with the principle goal to ensure the objectives of forest management, and at the same time – maintain processes in a sustainable manner. Indicators act as an instrument which can be used for monitoring sustainability. Hence indicators should be multidisciplinary, and cover all aspect of social, ecological, cultural, economic and institutional factors affecting sustainability of ecotourism. In this study, C&I were identified by using the Delphi approach through multidisciplinary panel team. Three rounds of meetings were held for discussions and dissemination of research to a panel of local experts. At the end of the second round we reached a consensus on 9 criteria and 61 indicators, which include 21 indicators related to ecological aspects, 8 to economic aspects, 21 to social aspects, 6 to cultural aspects and 5 to institutional aspects. The selected indicators would be applied by the Iranian Cultural, Heritage, Handicrafts and Tourism Organization for monitoring ecotourism sustainability in the Northern forest of Iran.
Dostawca treści:: Repozytorium Centrum Otwartej Nauki

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Tytuł:: Thinning effects on stand formation and modifications of a young pine/birch forest: a boreal zone case study
Autorzy:: Nakvasina, Elena Nikolaevna
Minin, Nicolai Stepanovich
Koptev, Sergey Viktorovich
Zakharov, Andrey Yurievich
Volkov, Alexey Gennadievich
Voevodkina, Alexandra Viktorovna
Wydawca:: Committee on Forestry Sciences and Wood Technology of the Polish Academy of Sciences and the Forest Research Institute in Sękocin Stary
Cytata wydawnicza:: Nakvasina, E., Voevodkina, A., Volkov, A., Zakharov, A., Koptev, S., & Minin, N. (2019). Thinning effects on stand formation and modifications of a young pine/birch forest: a boreal zone case study, Folia Forestalia Polonica, 61(3), 197-210. doi: https://doi.org/10.2478/ffp-2019-0019
Opis:: Thinning of young forests attracts the attention of scientists despite the long-term commercial effect. However, these researches are scarce. Therefore, it is important to study experiments with a long history. The aim of our study is to investigate the impact of thinning carried out in young pine/birch boreal forests on stand formation, natural regeneration, ground cover and properties of the soil layers in stands. We investigated three types of thinning in young pine/birch forests. In one plot of the initial stand, thinning was performed in two stages with a time interval of 27 years; in the first stage, thinning intensity was 75% of stems, while in the second stage, thinning intensity was 30%. In two other plots, thinning was performed in one stage at a stand age of 13 years, with thinning intensities of 76 and 84%. At the stand age of 72 years (2017), integrated studies of the silvicultural and ecological states were carried out. All thinned plots had developed into pure pine stands with 28–53% thicker stems, 12–18% higher trees and a growing stock 55–92% higher compared to the un-thinned reference stand. The most pronounced differences were observed for Option 1. With thinning, forest type changed to red whortleberry type, while the un-thinned reference site developed into a blueberry type forest. Thinning in young pine/birch stands results in the formation of pure pine stands. The associated modification of environmental properties changed the composition and density of the ground cover and some properties of the upper soil layers. Two-stage thinning had the least impacts; this approach can be used to produce stands with high com- mercial value. It is especially recommended for young pine/birch forests in the northern taiga.
Dostawca treści:: Repozytorium Centrum Otwartej Nauki

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