FEELING THE WETLANDS IN SOUTHERN COAST OF CASPIAN SEA (IRAN)

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SHOKRI M.; SAFAIAN N.A.; SAFAIAN R.

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Journal: Journal of Environmental Studies Year:2006 | Volume:32 | Issue:39 Page(s): 119-128

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Title

FEELING THE WETLANDS IN SOUTHERN COAST OF CASPIAN SEA (IRAN)

Author(s)

SHOKRI M. | SAFAIAN N.A. | SAFAIAN R. | Issue Writer Certificate

Keywords

WETLANDQ2

RAMSAR CONVENTIONQ2

PHOTODYNAMICQ4

AQUATIC PLANTSQ3

EUTROPHICATIONQ2

IRANQ2

AGENDA 21Q2

Abstract

The WETLANDs are dynamic ecosystems, having greater biodiversity and special botanicecologica l structure. These ecosystems are always changing under the influence of natural and human factors by passing through healthy threshold and destruction. One of the approved regulations of RAMSAR CONVENTION and AGENDA 21 about wise use of WETLANDs and immigrant birds, for member countries is the measurement of ecological characteristics and sustaining the biodiversity in order to evaluate the environmental consequences in WETLANDs. To understand the effects of socio-economical activities of human societies around WETLANDs on vegetation structure of these ecosystems, the present research has been carried out in 7 indicator WETLANDs in northern IRAN, located in southern coast of Caspian sea during 1995-2005. The evaluation of the changes in relative density of observed plants on water surface has been done by Distance Method and the statistical analysis has been carried out by using the ANOVA with SPSS9 software. Based in the results of the research, the following plant species: Azolla filiculoides, Nympha alba, Phragmites australis, Nelumbiym nuciferum, Juncus articulatus, Scirpus maritimus and Utricularia neglecta are the increasing species and the following plant species: Lemna minor, Butomus umbelatus, Sparganium erectum, Salvinia natans and Iris pseudacorus are the decreasing species in northern IRAN's WETLANDs. Considering the growth rate, propagation and morphological characteristics of increasing species, these plants decrease the penetration of light into the water with their continuous canopy cover, interfere in the food chain, decrease the diversity of fauna and flora and finally by accumulation in the WETLAND bed, create the phenomenon of EUTROPHICATION and the death of these aquatic ecosystems.

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APA: Copy

SHOKRI, M., SAFAIAN, N.A., & SAFAIAN, R.. (2006). FEELING THE WETLANDS IN SOUTHERN COAST OF CASPIAN SEA (IRAN). JOURNAL OF ENVIRONMENTAL STUDIES, 32(39), 119-128. SID. https://sid.ir/paper/3137/en

Vancouver: Copy

SHOKRI M., SAFAIAN N.A., SAFAIAN R.. FEELING THE WETLANDS IN SOUTHERN COAST OF CASPIAN SEA (IRAN). JOURNAL OF ENVIRONMENTAL STUDIES[Internet]. 2006;32(39):119-128. Available from: https://sid.ir/paper/3137/en

IEEE: Copy

M. SHOKRI, N.A. SAFAIAN, and R. SAFAIAN, “FEELING THE WETLANDS IN SOUTHERN COAST OF CASPIAN SEA (IRAN),” JOURNAL OF ENVIRONMENTAL STUDIES, vol. 32, no. 39, pp. 119–128, 2006, [Online]. Available: https://sid.ir/paper/3137/en

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