prioritization of sub-basins by morphometric analysis of the drainage basin for adopting protective measures in galikesh watershed

نویسندگان

ehsan alvandi gorgan university of agricultural sciences and natural resources

g. mirzaei

mahtab forootandanesh sari university of agricultural sciences and natural resources

ebrahim karimi sangchini gorgan university of agricultural sciences and natural resources

چکیده

watershed is regarded as a very complex system of natural, social, economic and ecological dimensions and like any similar systems, exploitation of its resources requires a comprehensive and coordinated planning and management. given the importance of watershed management projects for the development and management of natural resources, the enhancement of the efficiency of these activities is essential in order to avoid wasting capitals. prioritization of sub-basins is one of the most comprehensive natural resource management and sustainable development practices. the purpose of this study was to prioritize the sub-basins of galikesh watershed in golestan province by morphometric analysis and gis. morphometric analysis as a low-cost and quick method has attracted much attention in recent years. in this study, analysis of morphometric parameters included overland flow length, bifurcation ratio, drainage density, drainage texture, basin form coefficient, and roundness factor, coefficient of elongation and compression ratio. these parameters are divided as either linear (correlated with erosion) or form (inversely with erosion) coefficients. the priority of each sub-basin was determined according to the total averages of morphometric parameters. the results of morphometric parameters showed that the highest number of sub-basins fall in the middle to high classes (44.44%) with 6a, 4a and 9a facing critical situation, and 3a and 1a with a more favorable situation than the other sub-basins. field studies properly corroborate the results, as watersheds 6a and 4a have the highest erosion and poorest soils (hydrologic group c). therefore, this type of research can be used as a low-cost and quick method of watersheds prioritization in order to carry out protective measures.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Prioritization of sub-basins by morphometric analysis of the drainage basin for adopting protective measures in Galikesh Watershed

Watershed is regarded as a very complex system of natural, social, economic and ecological dimensions and like any similar systems, exploitation of its resources requires a comprehensive and coordinated planning and management. Given the importance of watershed management projects for the development and management of natural resources, the enhancement of the efficiency of these activities is e...

متن کامل

study of cohesive devices in the textbook of english for the students of apsychology by rastegarpour

this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...

sub-basin prioritization suing morphometric analysis and gis for watershed management measures (case study: maraveh tappeh watershed, golestan)

sub basin prioritization is one of the integrated watershed management and sustainable development strategies. to protect natural resources, through marking zones of potential damage in small areas for is a primary need sustainable development. degradation potential zones project for watershed protection measures is not cost-effective economically. so this is a prerequisite for sub basin priori...

متن کامل

analysis of power in the network society

اندیشمندان و صاحب نظران علوم اجتماعی بر این باورند که مرحله تازه ای در تاریخ جوامع بشری اغاز شده است. ویژگیهای این جامعه نو را می توان پدیده هایی از جمله اقتصاد اطلاعاتی جهانی ، هندسه متغیر شبکه ای، فرهنگ مجاز واقعی ، توسعه حیرت انگیز فناوری های دیجیتال، خدمات پیوسته و نیز فشردگی زمان و مکان برشمرد. از سوی دیگر قدرت به عنوان موضوع اصلی علم سیاست جایگاه مهمی در روابط انسانی دارد، قدرت و بازتولید...

15 صفحه اول

the analysis of the role of the speech acts theory in translating and dubbing hollywood films

از محوری ترین اثراتی که یک فیلم سینمایی ایجاد می کند دیالوگ هایی است که هنرپیش گان فیلم میگویند. به زعم یک فیلم ساز, یک شیوه متأثر نمودن مخاطب از اثر منظوره نیروی گفتارهای گوینده, مثل نیروی عاطفی, ترس آور, غم انگیز, هیجان انگیز و غیره, است. این مطالعه به بررسی این مسأله مبادرت کرده است که آیا نیروی فراگفتاری هنرپیش گان به مثابه ی اعمال گفتاری در پنج فیلم هالیوودی در نسخه های دوبله شده باز تولید...

15 صفحه اول

Prioritization sub-watershed of Acemangar Basin in Chaharmahal-e- Bakhtiari for soil and water management using morphometric parameters and ensemble of TOPSIS-multivariate linear regression algorithm

Sub-watershed prioritization is very important in natural resources and watershed management. This study deals with prioritization of sub-watersheds using a mixed multivariate linear model of New TOPSIS-Regression over morphometric parameters of 11 sub-watersheds. Morphometric parameters include constant of compression ratio, roundness factor, form ratio, slenderness ratio,channel maintenance, ...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
نشریه علمی - پژوهشی هیدرولوژی کاربردی

جلد ۲، شماره ۲، صفحات ۳۷-۴۴

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023