نتایج جستجو برای: گیاه گونه ïris pseudacorus (yellow flag ïris )
تعداد نتایج: 137734 فیلتر نتایج به سال:
سابقه و هدف: دفع باکتری ها توسط سیستم وتلند حاوی گیاهان، در مطالعات متعدد توسط محققان گزارش شده است. این تحقیق برای تعیین کارآیی وتلندهای مصنوعی زیر سطحی در دفع باکتری های شاخص کلیفرم از فاضلاب خانگی با گیاه گونه iris pseudacorus معروف به yellow flag iris از تیره زنبق و خانواده iridaceae انجام گرفت. مواد و روش ها :چهار رآکتور آزمایشگاهی در دو سری که در هرسری سه تای آن به ترتیب حاوی 1، 2 و 3 گیا...
Non-native aquatic plants can alter the physiochemical condition of habitats and have negative ecological economic impacts. Thus, understanding characteristics non-native plant species is important as a foundation for conservation biodiversity environmental management. The yellow flag (Iris pseudacorus) an emergent native to Africa, northwest Asia, Europe that has been introduced through aquari...
Abstract Yellow-flag iris ( Iris pseudacorus L.) is a nonnative, invasive wetland plant that disrupts riparian ecosystem processes and widely distributed across the United States Canada. Due to its physiological morphological characteristics, I. has capacity exclude native vegetation form extensive monocultures in both lotic lentic systems. Methods commonly used manage include manual (e.g., han...
We conducted an intercontinental biogeographic survey to analyze the effects of invasive plant species in its native and invaded ranges. Our study system included tidal wetlands colonized by Iris pseudacorus L. (yellow flag iris, Iridaceae) along salinity gradients two estuaries European (Guadalquivir Estuary) North American (San Francisco Bay-Delta hypothesized I. would impart more negative co...
Background and Purpose: Removal of bacteria by macrophytes in wetland system had been reported by many researchers. This study was designed and performed to determine the efficiency of sub-surface constructed wetland in removal of coliform bacteria from sewage. Materials and Methods: We have used 4 plastic reactors in Bench-Scale in two series. Ïn each serie and to the three reactors were ...
BACKGROUND Despite its high prevalence, most acute low back pain (ALBP) is nonspecific, self-limiting with no definable pathology. Recurrence is prevalent, as is resultant chronicity. Psychosocial factors (yellow flags comprising depression and anxiety, negative pain beliefs, job dissatisfaction) are associated with the development of chronic LBP. METHODS A national insurer (Accident Compensa...
! Gilbert Baker designed the rainbow flag for the 1978 San Francisco's Gay Freedom Celebration. In the original eight-color version, pink stood for sexuality, red for life, orange for healing, yellow for the sun, green for nature, turquoise for art, indigo for harmony and violet for the soul.! First unveiled on 12/5/98 the bisexual pride flag was designed by Michael Page. This rectangular flag ...
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