| Yazarlar |
Orhan Mete Kılıç
Türkiye |
|
Mesut Budak
Türkiye |
|
Elif Günal
|
Dr. Öğr. Üyesi Nurullah ACİR
Türkiye |
|
Rares Halbac-Cotoara Zamfir
|
|
Saleh Alfarra
|
|
Mohammad Javed Ansar
|
| Özet |
| Soil salinity is a major land degradation process reducing biological productivity in arid and semi-arid regions. Therefore, its effective monitoring and management is inevitable. Recent developments in remote sensing technology have made it possible to accurately identify and effectively monitor soil salinity. Hence, this study determined salinity levels of surface soils in 2650 ha agricultural and natural pastureland located in an arid region of central Anatolia, Turkey. The relationship between electrical conductivity (EC) values of 145 soil samples and the dataset created using Landsat 5 TM satellite image was investigated. Remote sensing dataset for 23 variables, including visible, near infrared (NIR) and short-wave infrared (SWIR) spectral ranges, salinity, and vegetation indices were created. The highest correlation between EC values and remote sensing dataset was obtained in SWIR1 band (r = -0.43). Linear regression analysis was used to reveal the relationship between six bands and indices selected from the variables with the highest correlations. Coefficient of determination (R-2 = 0.19) results indicated that models obtained using satellite image did not provide reliable results in determining soil salinity. Microtopography is the major factor affecting spatial distribution of soil salinity and caused heterogeneous distribution of salts on surface soils. Differences in salt content of soils caused heterogeneous distribution of halophytes and led to spectral complexity. The dark colored slickpots in small-scale depressions are common features of sodic soils, which are responsible for spectral complexity. In addition, low spatial resolution of Landsat 5 TM images is another reason decreasing the reliability of models in determining soil salinity. |
| Anahtar Kelimeler |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | PLOS ONE |
| Dergi ISSN | 1932-6203 |
| Dergi Tarandığı Indeksler | SCI |
| Dergi Grubu | Q2 |
| Makale Dili | Türkçe |
| Basım Tarihi | 01-2022 |
| Cilt No | 17 |
| Sayı | 4 |
| Sayfalar | 1 / 14 |
| Doi Numarası | 10.1371/journal.pone.0266915 |
| Makale Linki | http://dx.doi.org/10.1371/journal.pone.0266915 |
| Atıf Sayıları | |
| Google Scholar | 14 |
