Ecological Consideration for Restoration of the Degraded Urban River
نویسندگان
چکیده
منابع مشابه
River restoration: seeking ecological standards. Editor’s introduction
1. In the face of continuing anthropogenic stressors to freshwater systems worldwide , the natural resilience and resistance of the freshwater ecosystems that enables them to cope with or recover rapidly from certain levels of perturbation is under significant threat. In many systems, the changes brought about through human activities have significantly altered the physical habitat and ecologic...
متن کاملSocio-ecological complexity and the restoration of river ecosystems
Understanding socio-ecological characteristics associated with rivers and their catchments, and using that understanding to effectively manage and restore river ecosystems, is an increasingly complex challenge. While great strides have been made in the last half century in understanding rivers as ecological systems, human exploitation of river water and riparian zones have frustrated river mana...
متن کاملtechnical and legal parameters for determination of river boundary,( case study haraz river)
چکیده با توسعه شهر نشینی و دخل و تصرف غیر مجاز در حریم رودخانه ها خسارات زیادی به رودخانه و محیط زیست اطراف آن وارده می شود. در حال حاضر بر اساس آئین نامه اصلاح شده بستر و حریم رودخانه ها، حریم کمی رودخانه که بلافاصله پس از بستر قرار می گیرد از 1 تا20 متر از منتهی الیه طرفین بستر رودخانه تعیین، که مقدار دقیق آن در هر بازه از رودخانه مشخص نیست. در کشورهای دیگر روشهای متفاوتی من جمله: درصد ریسک...
15 صفحه اولDegraded Character Image Restoration
The design and analysis of an algorithm for the restoration of degraded images of machine-printed characters is presented. The input is a set of degraded bilevel images of a single unknown character ; the output is an approximation to the charac-ter's ideal artwork. The algorithm seeks to minimize the discrepancy between the approximation and the ideal, measured as the worst-case Euclidean dist...
متن کاملMorphological, hydrological, biogeochemical and ecological changes and challenges in river restoration – the Thur River case study
River restoration can enhance river dynamics, environmental heterogeneity and biodiversity, but the underlying processes governing the dynamic changes need to be understood to ensure that restoration projects meet their goals, and adverse effects are prevented. In particular, we need to comprehend how hydromorphological variability quantitatively relates to ecosystem functioning and services, b...
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ژورنال
عنوان ژورنال: The Korean Journal of Ecology
سال: 2002
ISSN: 1225-0317
DOI: 10.5141/jefb.2002.25.4.247