نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی کارشناسی ارشد آبخیزداری، دانشکده منابع طبیعی، دانشگاه صنعتی خاتم الانبیاء بهبهان
2 استادیار گروه مهندسی طبیعت، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان
3 استادیار، دانشکده منابع طبیعی، دانشگاه صنعتی خاتم الانبیاء بهبهان
چکیده
حفاظت و استفاده بهینه از منابع آب از اصول توسعه پایدار هر کشور است. آب‌های سطحی جاری یا رودخانه‌ها یکی از مهمترین منابع آب هستند که نقش مهمی در تامین آب مورد نیاز بخش‌های مختلف مانند کشاورزی، صنعت، شرب و تولید برق دارند. رودخانه شاوور که یکی از رودخانه‌های مهم و تاثیرگذار شهرستان شوش به‌شمار می‌رود، به‌دلیل استفاده از آب آن در کاربری‌های شهری و کشاورزی کیفیت آن حائز اهمیت است. کاربری اراضی و تغییرات آن تاثیر بسزایی بر کیفیت آب رودخانه‌ها دارد، در پژوهش حاضر، تاثیرات تغییر کاربری اراضی بر روی کیفیت آب رودخانه شاوور در دوره زمانی 1393-1363 بررسی شد. نقشه‌های کاربری اراضی مربوط به سال‌های 1363 و 1393 به کمک تصاویر ماهواره‌ای تهیه شد و سپس، تغییرات کاربری اراضی بررسی شد. نتایج نشان داد، در سری داده‌های مورد مطالعه، روند معنی‌دار وجود دارد و افزایش اراضی مسکونی و کشاورزی و کاهش اراضی مرتعی و جنگلی را در پی داشت. سپس، در دوره مطالعاتی روند تغییرات عوامل کیفی آب رودخانه شاوور به کمک آزمون من-کندال و نمودارها بررسی شد. نتایج نشان داد، روند کلی تغییرات پارامترهای HCO3 ،Cl ،TDS ،EC ،Ca ،Mg و SO4 در دوره زمانی مورد مطالعه، افزایشی بوده است. با توجه به تغییر معنی‌دار پارامترهای مورد مطالعه می‌توان دریافت، افزایش اراضی مسکونی و کشاورزی و کاهش اراضی مرتعی و جنگلی، باعث کاهش کیفیت آب رودخانه شاوور در طی دوره مورد مطالعه شده است.
کلیدواژه‌ها
عنوان مقاله [English]
Evaluation of impacts of land use change on Shavoor River water quality
نویسندگان [English]
- Soghra Malekpurlarki 1
- Zohre Khorsandi kouhanstani 2
- Mohammad Faraji 3
1 MSc Student, Faculty of Natural Resources, Behbahan Khatam Alanbia University of Technology, Iran
2 Assistant professor, Faculty of Natural Resource, Agricultural Sciences and Natural Resources University of Khuzestan, Iran
3 Assistant Professor, Natural resources faculty, Behbahan Khatam Alanbia University of Technology, Iran
چکیده [English]
Conservation and utilization of water resources are principles of sustainable development of each country. Surface waters or rivers are one of the most important water resources which have important role in supplying water demands in different sectors such as agriculture, industry, drinking water and energy. Shavoor River which is one of the effective rivers in Shoosh City is important due to its quality in water urban and agricultural usages. Land use and its changes have important effects on river water quality. In this research, the effect of land use change is investigated in water quality of Shavoor River in 1985-2015. For this reason, land use maps of 1985 and 2015 were prepared by satellite imageries and land use changes were investigated. Results showed an increase in residential and agricultural lands and a reduction in rangelands and forests. Also, the changing trend of water quality factors in Shavoor River was studied with Mann-Kendall test and graphs. Results demonstrated that the changes overall trend of Hco3, Cl, TDS, EC, Ca, Mg and So4 were increasing in the period. According to meaningful changes of parameters, it can be concluded that the increase in residential and agricultural lands and reduction in rangelands and forests cause the water quality of Shavoor River in the study period.
کلیدواژه‌ها [English]
- GIS
- Land use change
- Mann-Kendall
- Quality reduction
- Remote Sensing
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