Effect of Alnus subcordata, Acer insigne and Sequoia sempervirens plantations on plant diversity in Hyrcanian forest of Iran

Biodiversitas

MOSLEM AKBARINIA¹  YAHYA KOOCH²  FATEMEH GHEIBI² 

[1] Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, 46417-76489, Noor, Mazandaran, Iran. Tel: + 98-122-6253101 (-3), Fax: + 98-122-6253499, email: akbarim@moda res.ac.ir.;Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, 46417-76489, Noor, Mazandaran, Iran.;

关键词: diversity;    evenness;    richness;    sequoia;    understory;   

DOI  :  10.13057/biodiv/d160102

来源: DOAJ

【 摘 要 】

Gheibi F, Akbarinia M, Kooch Y. 2015. Effect of Alnus subcordata, Acer insigne and Sequoia sempervirens plantations on plant diversity in Hyrcanian forest of Iran. Biodiversitas 16: 10-15. Forest plantation is a common action in order to restore the degraded forests in Hyrcanian forests of Iran. This study compares the plant biodiversity in four 25-year-old stands of plantation, adjacent understory of alder (Alnus subcordata C. A. Mey.), maple (Acer insigne Boiss.), sequoia or red wood (Sequoia sempervirens (D. Don) Endl.) and mixed stand (maple and sequoia), located in Salmanshahr of Mazandaran Province, northern Iran. Research carried out in, 10 sample plots with 20m × 20m area which taken by systematic-random in each plantation. All understory species were identified, recorded and then the biodiversity indices (diversity, richness and evenness) were calculated. Our findings show that the planted species had significant effects on understory diversity. Statistical comparisons revealed that the highest and lowest diversity (Simpson and Shanon-Winer) and richness (Margalef and Menhinic) indices occurred in sequoia and alder stands, respectively. The evenness indices (Camargo and Smith-Wilson) were significantly greater in maple, sequoia and mixed stands compared with the alder type. As a conclusion, floristic change trends were different according to the planted tree species. A good understanding of the complexity of vegetation processes requires long-term monitoring of vegetation change.

【 授权许可】

Unknown