Objective: The aim of this study is to provide a management plan for the Sykan watershed of Darre shahr city located in Ilam province using GIS in land use planning. Methods: For land using of Sykan watershed of Ilam province with about 9 hectares area, map of classes, elevation, percent slope, geographical aspects, soil characteristics, vegetation density and the final map units were combined ...

The free-flowing Clinch and Powell watershed in Virginia, USA, harbors a high number of endemic mussel and fish species but they are declining or going extinct at an alarming rate. To prioritize resource management strategies with respect to these fauna, a geographical information system was developed and various statistical approaches were used to relate human land uses with available fish, ma...

Different sources and fates control riverine dissolved organic matter (DOM) composition in catchments of contrasting land use climate. However, assessing the changes DOM together with nutrient forms along rivers exposed to these gradients remains rare. Here we quantified spatial temporal patterns components mainstem a 5th order river through sequential forested, urban, agricultural reaches duri...