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University of Mohaghegh Ardabili (2017)

Evaluation of Land Use Distribution Model on Hydrological Response in Forest Watersheds of Guilan Province

Sadeghi Shal, Seyed Morteza

Titre : Evaluation of Land Use Distribution Model on Hydrological Response in Forest Watersheds of Guilan Province

ارزیابی الگوی پراکنش کاربری اراضی بر پاسخ هیدرولوژیکی در آبخیزهای جنگلی استان گیلان

Auteur : Sadeghi Shal, Seyed Morteza

Université de soutenance : University of Mohaghegh Ardabili

Grade : Master 2017

Résumé
Today, all countries in the world face a process of changing the use of forest lands and natural resources, which, of course, are different in terms of destruction in the countries. In Iran, the destruction of natural resources is alarming and alarming, which includes forests in the north of the country. In order to investigate the effect of land use dispersion on hydrologic response, 10 watersheds were selected in west of Guilan province. Monthly data of hydrometric stations were classified into 10-year statistical period. The purpose of this study is to evaluate the land use distribution pattern in response to some hydrological indicators such as specific runoff and water coefficient in selected areas. The land use map was prepared for each area, and on this map, land surface measurements for each of the hydrological units of the area were reduced by using Fragstats software. The relationship between terrestrial landmarks includes : and computational hydrologic indexes including : in each watershed area, was calculated. To analyze the relationship between land use characteristics and indices and measures and presenting the model, regression relationships were used in SPSS software. The results showed that using the different measurements in the studied watersheds, the two largest indexes of the largest apparent size (LSI) and the similarity of neighboring spots (PLADJ) had the greatest impact on the rate of runoff coefficient as well as the effective size of the stain (MESH), the greatest impact In the amount of Dubai specific watersheds selected in western Guilan. In total, it can be said that there is a meaningful relationship between land use distribution pattern and catchment response, which can be interpreted using territorial landmarks. Based on this, terrestrial landmarks can be used to predict the effect of changes in land use patterns and hydrologic indicators.

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