Toprak Nemi İle Radarsat Geri Yansıtım Değerleri Arasındaki İlişkiler; Artvin-Merkez ve Gümüşhane-Karanlıkdere Orman Planlama Birimi Örnekleri

Year 2017, Volume: 17 Issue: 1, 36 - 44, 05.03.2017

Alkan Günlü , Emin Zeki Başkent

https://doi.org/10.17475/kastorman.296199

Cited By: 2

Abstract

Bu çalışmanın amacı, Artvin-Merkez ve
Gümüşhane-Karanlıkdere planlama birimlerinde farklı yetişme özellikleri ve
farklı meşcere kapalılığına sahip örnek alanlardan elde edilen toprak nemi ile
Radarsat uydu görüntüsü kullanılarak her bir örnek alandan elde edilen geri
yansıtım değerleri arasındaki ilişkilerin belirlenmesidir. Artvin-Merkez
planlama biriminde kuru ve taze-tazece yetişme ortamları ile düşük ve bozuk
orman alanlarında toprak nemi ile geri yansıtım değerleri arasında sırasıyla
negatif ilişkiler bulunmuştur (r=-0.85
ve r=-0.73). Buna karşın, orta ve tam kapalı meşcerelerde
herhangi bir ilişki bulunamamıştır. Gümüşhane-Karanlıkdere planlama biriminde
ise çok kuru-kuru ve taze-tazece yetişme ortamları ile düşük ve bozuk orman
alanlarında toprak nemi ile geri yansıtım değerleri arasında sırasıyla pozitif
ilişkiler bulunmuştur (r=0.78
ve r=0.83)

Keywords

Meşcere kapalılığı, Toprak nemi, Radarsat uydu görüntüsü

Relationships between Soil Moisture and RADARSAT derived Backscattering Coefficient Values: a case studies in Artvin-Merkez and Gümüşhane-Karanlıkdere Forest Planning Units

Abstract

The
purpose of this study was to determine the relationships between soil moisture
and backscattering coefficient values calculated for each sampling plot and
compare with soil moisture in different forest sites and crown closure classes
using Radarsat satellite images in Artvin-Merkez and Gümüşhane-Karanlıkdere
forest planning units. Results indicate that in low coverage and degraded
forest areas in dry and fresh-moderate fresh forest sites in Artvin forest
planning unit, the relations between soil moisture and backscatter coefficient
values were negatively correlated with r=-0.85 and r=-0.73, respectively.
However, there was no relationship between backscatter coefficient values and
soil moisture in medium crown coverage and full coverage stands.  Similarly, at low coverage and degraded
forest areas in very dry-dry and fresh-moderate fresh forest sites in
Gümüşhane-Karanlıkdere forest planning unit were positively correlated high and
significant r=0.78 and r=0.83, respectively

Keywords

Crown closure, Soil moisture, Radarsat Image

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