A Comparative Study of Land-Use Change and its Impact on Erosion Rate Using Object-Oriented Classification Method in Simineh Rood Basin of Boukan

Authors

  • piroozi, elnaz Faculty Literature of Humanities, Mohaghegh Ardabili University
Abstract:

Extended abstract 1- Introduction Human beings have always sought to assess changes and discover changes. Soil erosion is one of the most important factors in soil degradation and reduction of fertility. Today, erosion of the soil due to non-expert human intervention has been removed from its natural process and has led to irreparable consequences. Considering the importance of studying changes in land use and its role in soil erosion over time, land use changes in Simineh Rood of the Boukan County in West Azarbaijan province and its role in soil erosion (between 2000 and 2017) were studied. 2- Methodology The current research was conducted based on the integration of data analysis and remote sensing techniques as well as the geographic information system. In the present study, the layers of distance from the waterway and the distance from the road and the slope were delineated using Boukan topographic map. Also, the soil map of the area was prepared, using the soil map of the province. Moreover, the geology map of the area was sketched according to the geology map of the province. The basin rainfall map was set out using Boukan meteorological stations data as well as the adjacent stations, obtaining gradient equation of precipitation. To identify the area and to prepare a map of the city, the map of the county lands and the images of the google earth and the terra images of the Terrestrial Sensor, pertaining to the years 2000 and 2017, were utilized. ENVI 5.3, Arc GIS 10.5, Idrisi selvi and Excel were employed for the processing of the images and for the analyses of the data. The land use map of the basin was prepared using an object-oriented method. The WLC method as a multi-criteria analysis technique was applied to prepare the erosion zonation map. 3- Results The map of the studied basin was prepared in 9 classes (aquaculture, rainforest, orchards, residential areas, communication lines, water, pasture, rocky lands with scattered vegetation and Bayer lands) through an object-oriented method. According to the obtained map, the results showed that the highest area in 2000 was related to the use of rangeland with a total area of 541.979 square miles. In 2017, the highest amount of land covered with the rocky lands with a dispersed land cover was 591.70. Also, the lowest usage rates in both years included the use of communication lines with 5.358 and 8.192 km2, the residential areas with 9.141 and 15.639 sq. Km, and the water with 22.320 and 18.480. The coefficients of evaluation (Kappa coefficient) extracted in 2000 and 2017 were 0/89 and  0/92, respectively. According to the erosion zoning maps in the area, in 2000 the area of the high risk class was 147.924 sq. Km, which increased to 185.971 sq. Km in 2017. In contrast with the high risk area of 470,511 sq km in 2000, it increased to 571 .081 sq km in 2017. 4- Discussion & Conclusions According to the results of the study, during the study period, pastures, drought and water decreased, and in contrast with the use of aquaculture, dry land, rocky land and residential areas, there was an increasing trend. According to the results of erosion hazard zonation, the area of high-risk and high risk classes increased from 8.79% and 28.2% in 2000 to 11.04% and 34.08%, respectively, in 2017. This can be attributed to an increase of 180.408, 129.245, 96.875, and 6.498 km2 from the area of arable land, bayer lands, rocks and residential areas, and a decrease of 359.806 square kilometers of rangelands. Therefore, according to the erosion zoning maps in the study area, in 2000 and 2017, the areas with high-risk categories are either unused or with agronomic uses, and the areas with low risk are very little in the pastures. It can be concluded that the results of the study are as follows: the studies of Esfandiari et al. (2014), Moradi (2016), Faizizadeh (2017), Asghari et al. (2017), Martinsmurilo et al. (2011) and Dasilova et al. (2016) are consistent with the fact that crops are the most common and the pastures have the least potential for erosion.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

transference of imagery: a comparative formalistic study of shakespeares hamlet and its two persian translations

هدف از این تحقیق بررسی انتقال صور خیال هملت در دو ترجمه ی فارسی آن از نظر فرمالیستی بود. برای بدست آوردن داده-های مورد نیاز، 130 نمونه استعاره، مجاز، ایهام، کنایه و پارادوکس در متن اصلی مشخص شده و سپس بر اساس مدل نیومارک (1998) برای ترجمه ی استعاره یا بطور کلی زبان مجاز با معادل های فارسی شان مقایسه گردیدند. این تحقیق بر آن بود تا روش های استفاده شده برای ترجمه هر کدام از انواع زبان مجاز ذکر شد...

15 صفحه اول

Investigation of Land Use Change on Physicochemical Characteristics and Soil Erosion in Kaftargar Basin of Behshahr

The land-use change, cutting forest trees and the grasslands conversion to agricultural lands destroyed natural ecosystems and also current or future production capacity reduce and these are harmful effects on the soil physicochemical characteristics. This study taken with aim, checking the role of forest-land change on some soil physical-chemical characteristics and then identify some effectiv...

full text

a comparative study of the relationship between self-, peer-, and teacher-assessments in productive skills

تمایل به ارزیابی جایگزین و تعویض آن با آزمون سنتی مداد و کاغذ در سالهای اخیر افزایش یافته است. اکثر زبان آموزان در کلاس های زبان از نمره نهایی که استاد تعیین میکند ناراضی اند. این تحقیق جهت بررسی ارزیابی در کلاس های زبان انگلیسی به هدف رضایتمندی زبان آموزان از نمره هایشان انجام گرفته است که در آن نمرات ارائه شده توسط سه گروه ارزیاب (ارزیابی خود دانشجو، همسالان واستاد) در مهارت های تولید (تکل...

15 صفحه اول

a comparative study of the theme of "marriage" in three victorian novelists: charles dickens, george eliot and thomas hardy

این تحقیق کوشیده است با انتخاب پنج رمان از میان آثار برگزیده، «چارلز دیکنز»، «جورج الیوت» و «توماس هاردی » و با رویکردی تطبیقی به بررسی درونمایه ی «ازدواج» در آثار این سه رمان نویس بزرگ دوره ی ویکتوریا بپردازد. فرضیه ی اولیه ی تحقیق این بوده است که چارلز دیکنز (1870- 1812) با زبانی شوخ و گزنده، جورج الیوت(1880- 1819) با نگاهی آموزشی–اندرزگونه و توماس هاردی(1928- 1840) با رویکردی تلخ وانتقادی به...

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 8  issue 1

pages  94- 109

publication date 2018-05

By following a journal you will be notified via email when a new issue of this journal is published.

Keywords

No Keywords

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023