The Effects of Shade and Nutrients on Standing Crop of Periphyton Communities in Artificial Streams
Publish place: دومین کنفرانس بین المللی محیط زیست و منابع طبیعی
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
View: 454
This Paper With 5 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
IENC02_013
تاریخ نمایه سازی: 5 بهمن 1395
Abstract:
T In order to study the effects of shading and addition on nutrients of periphyton standing crop, we exposed periphyton communities to two levels of irradiance and three levels of nutrients in artificial streams. We observed that periphyton communities has been affected by both light levels and nutrients treatments in artificial streams. Results obtained from these experiments revealed that various aspects of the community productivity including dry mass, ash- free dry mass, chlorophyll a and biovolume have decreased in shading treatment, whereas periphyton biomass increased in unshaded treatments. Addition of N and P increased periphyton biomass in both shaded and unshaded treatments. Both light and nutrient treatments altered taxonomic structure by increasing abundance of upright diatoms such as Achnanthes in all shading treatments.
Keywords:
Authors
Tahminah Mohammadi
Student Research committee, kermanshah University of Medical Sciences Kermanshah, Iran
Mohammad Ghafori
Department of Biology, Faculty of Science, Razi University, Kermanshah
Hiwa Hossaini
Department of Environmental Health, University of Medical Sciences Kermanshah, Iran
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :