HeydariPothierFaramarziEtAl2014

Référence

Heydari, M., Pothier, D., Faramarzi, M. and Merzaei, J. (2014) Short-term abandonment of human disturbances in Zagros Oak forest ecosystems: Effects on secondary succession of soil seed bank and aboveground vegetation. Biodiversitas, 15:147-161.

Résumé

Zagros Oak forests in the west of Iran have been degraded by anthropogenic activities during many years and to fight against this degrad ation, several management strategies have been implemented. The principal objectives this study were to identify the characteristics of the soil seed bank and the aboveground vegetation that were affected by degradation and short term abandonment of human disturbances and evaluate the potential of the soil seed bank to restore the degraded types after short term conservatio n management. For that, we compared three types of Zagros forest ecosystem with different management regimes: (1) Long term disturbed type as LDT (also used and disturbed at the present), (2) Short term abandonment of human disturbances as SAD (5 years without human disturbances) and an undisturbed control or C (3). We selected three replicates or stands per type. In the aboveground vegetation (ABV), 115, 72 and 51 species were recorded in C, SAD and LDT types, respectively, whereas in the soil seed bank (SSB) flora, 33, 19 and 12 plant taxa were observed in C, SAD and LDT types, respectively. The percentage of annuals increased in ABV and decreased in SSB with increasing site degradation with human activities such as animal husbandry in the forest edges . The percentage of perennial and biennial herbs decreased in ABV and increased in SSB with increasing site degradation. The Shannon index of the SSB decreased with increasing site degradation. The average seed density in the SAD type was significantly larger than that of the LDT type. DCA analysis showed that the seed bank flora of SAD and LDT types were relatively similar and differed from that of the C type. This indicates that a full recovery of degraded type in the oak forest ecosystem in the Zagros region cannot be based only on the soil seed bank present at the beginning of the protection period while a more complete recovery may require a longer period of protection.

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { HeydariPothierFaramarziEtAl2014,
    AUTHOR = { Heydari, M. and Pothier, D. and Faramarzi, M. and Merzaei, J. },
    TITLE = { Short-term abandonment of human disturbances in Zagros Oak forest ecosystems: Effects on secondary succession of soil seed bank and aboveground vegetation },
    JOURNAL = { Biodiversitas },
    YEAR = { 2014 },
    VOLUME = { 15 },
    PAGES = { 147-161 },
    ABSTRACT = { Zagros Oak forests in the west of Iran have been degraded by anthropogenic activities during many years and to fight against this degrad ation, several management strategies have been implemented. The principal objectives this study were to identify the characteristics of the soil seed bank and the aboveground vegetation that were affected by degradation and short term abandonment of human disturbances and evaluate the potential of the soil seed bank to restore the degraded types after short term conservatio n management. For that, we compared three types of Zagros forest ecosystem with different management regimes: (1) Long term disturbed type as LDT (also used and disturbed at the present), (2) Short term abandonment of human disturbances as SAD (5 years without human disturbances) and an undisturbed control or C (3). We selected three replicates or stands per type. In the aboveground vegetation (ABV), 115, 72 and 51 species were recorded in C, SAD and LDT types, respectively, whereas in the soil seed bank (SSB) flora, 33, 19 and 12 plant taxa were observed in C, SAD and LDT types, respectively. The percentage of annuals increased in ABV and decreased in SSB with increasing site degradation with human activities such as animal husbandry in the forest edges . The percentage of perennial and biennial herbs decreased in ABV and increased in SSB with increasing site degradation. The Shannon index of the SSB decreased with increasing site degradation. The average seed density in the SAD type was significantly larger than that of the LDT type. DCA analysis showed that the seed bank flora of SAD and LDT types were relatively similar and differed from that of the C type. This indicates that a full recovery of degraded type in the oak forest ecosystem in the Zagros region cannot be based only on the soil seed bank present at the beginning of the protection period while a more complete recovery may require a longer period of protection. },
    OWNER = { nafon9 },
    TIMESTAMP = { 2014.12.10 },
}

********************************************************** ***************** Facebook Twitter *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ************* Colloque **************************** **********************************************************

1er au 3 mai 2019
UQAC

********************************************************** ************* R à Québec 2019**************************** **********************************************************

********************************************************** ********************* Traits **************************** **********************************************************

********************************************************** ************* Écoles d'été et formation **************************** **********************************************************

Écoles d'été et formations

Cours intensif sur l'analyse des pistes 
6-10 mai 2019, Université de Sherbrooke
Cours intensif : Taxonomie et méthodes d’échantillonnage en tourbières 
6-17 mai 2019, Université Laval
Dendrochronological Fieldweek 2019 
16-21 mai 2019, Station FERLD
Traits Fonctionnels des Organismes - École thématique internationale
19-24 mai 2019, Porquerolles, France
Cours aux cycles supérieurs: Terrain avancé en géographie 
10-15 juin 2019, FERLD, Abitibi-Témiscamingue
École d'été « Drones et télédétection environnementale » 
13-14 juin 2019, Sherbrooke
Ecole d'été en Biologie et Ecologie intégratives 
6-12 juillet 2019, Pyrénées françaises
École d'été en modélisation de la biodiversité 
19-23 août 2019, Orford
Cours aux cycles supérieurs: Aménagement des écosystèmes forestiers 
19-30 août 2019, Station FERLD

********************************************************** ***************** Pub - Carapace ****************** **********************************************************

********************************************************** ***************** Pub - Budworm ****************** **********************************************************

********************************************************** ***************** Pub - Colibri **************************** **********************************************************

********************************************************** ********** Pub 6 - Au coeur de l'arbre *********** **********************************************************

...Une exposition
virtuelle sur l'arbre!

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

Jérémie Alluard (2016) Les statistiques au moments de la rédaction 

  • Ce document a pour but de guider les étudiants à intégrer de manière appropriée une analyse statistique dans leur rapport de recherche.

Voir les autres...