List of Articles USBR Open Access Article Abstract Page Full-Text 1 - Comparison of the Statistical Regression and Fuzzy Methods for Estimating Sediment Load for Telvar River Baharak Motamedvaziri Hasan Ahmadi Mohammad Mahdavi Forood Sharifi Open Access Article Abstract Page Full-Text 2 - Study on dynamism of the main nutrient elements along litter decomposition process of Bromus tomentellus Bornm zeinab jafarian Zahra Yuosefi Mohammad Hodjati Mohammad Tayebi