fa تأثیر کاربری‌های مختلف بر کیفیت منابع آب سطحی (مطالعه موردی حوزه آبخیز سیاهرود قائمشهر) پژوهشي Research <p>رودخانه ها مهمترین و متداول‌ترین منابع تأمین آب آشامیدنی، کشاورزی و صنعتی به شمار می‌آیند و به علت‌این که از بسترها و مناطق مختلفی می‌گذرند و در ارتباط مستقیم با محیط پیرامون خود هستند نوسانات کیفی زیادی دارند. از طرفی بهره‌برداری بیش از حد خاک، استفاده مداوم از منابع آب سطحی و زیر زمینی و استفاده از مواد شیمیایی در کشاورزی (کودها و آفت کش‌ها) اثرات منفی معنی داری بر محیط زیست دارد. همچنین منابع آب بر اثر عوامل انسانی نظیرکاربری‌های مختلف اراضی دچار تغییرات فیزیکی، شیمیایی و بیولوژیکی می شود.‌این تغییرات عموما منفی بوده و بهره‌برداری از منابع آبی را به شدت محدود می‌کند.‌این مقاله به بررسی تأثیر کاربری‌های مختلف اراضی بر کیفیت منابع آب سطحی می پردازد.</p> <p dir="ltr" style="text-align: justify"><br> <span class="longtext1"><span style="color: black font-family: "Times New Roman", serif font-size: 10pt">The Rivers most common sources of drinking water supply, agriculture and industry are considered as due to the different regions </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">of</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">admission</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">and</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="longtext1"><span style="color: black font-family: "Times New Roman", serif font-size: 10pt">can pass and in direct contact with </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">with</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">its</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">surroundings</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">have many</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">quality</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">swings</span></span><span class="longtext1"><span style="color: black font-family: "Times New Roman", serif font-size: 10pt">. The other hand, excessive exploitation of soil, continuous use of surface and underground water resources and </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">sustainable</span></span><span class="longtext1"><span style="color: black font-family: "Times New Roman", serif font-size: 10pt"> use of agricultural chemicals (fertilizers and pesticides). </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">Significant</span></span><span class="longtext1"><span style="color: black font-family: "Times New Roman", serif font-size: 10pt"> negative effects have on the environment. </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">Human</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">factors</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">such as</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">various land</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> use changes </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">is important factor to</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">water resources</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">has being physical</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt">, </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">chemical</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">and</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">biological changes</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt">. </span></span><span class="longtext1"><span style="color: black font-family: "Times New Roman", serif font-size: 10pt">These changes were generally negative and </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">the</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">exploitation of</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="longtext1"><span style="color: black font-family: "Times New Roman", serif font-size: 10pt">water resources </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">are</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">severely limited</span></span><span class="longtext1"><span style="color: black font-family: "Times New Roman", serif font-size: 10pt">. </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">This paper</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">investigates the</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">effect </span></span><span class="longtext1"><span style="color: black font-family: "Times New Roman", serif font-size: 10pt">of different land uses on </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">the quality of</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="longtext1"><span style="color: black font-family: "Times New Roman", serif font-size: 10pt">surface water </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">resources</span></span><span class="longtext"><span style="font-family: "Times New Roman", serif font-size: 12pt"> </span></span><span class="hps"><span style="font-family: "Times New Roman", serif font-size: 12pt">are discussed</span></span><span class="longtext1"><span style="color: black font-family: "Times New Roman", serif font-size: 10pt">.</span></span></p> کیفیت آب, کاربری اراضی, نیترات, حوزه آبخیز سیاهرود Water Quality, Land use, Nitrate, Siahrud watershed 21 31 http://magazine.hormozgan.ac.ir/browse.php?a_code=A-10-237-1&slc_lang=fa&sid=1 حمیدرضا مرادی رکابدارکلائی hrmoradi@modares.ac.ir 10031947532846002521 10031947532846002521 Yes دانشگاه تربیت مدرس نوشین تقوی n.taghavi@yahoo.com 10031947532846002522 10031947532846002522 No دانشگاه تربیت مدرس نادر بهرامی فر nbahramifar@gmail.com 10031947532846002523 10031947532846002523 No دانشگاه تربیت مدرس