Çoruh Nehri Havzası’nda vejetasyon örtme derecesindeki değişimlerin izlenmesi: 2014-2018 yılları arasında zamansal bir değerlendirme
Yükleniyor...
Dosyalar
Tarih
2026
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Artvin Çoruh Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalışma, Orman Genel Müdürlüğü (OGM) koordinasyonunda yürütülen Artvin, Erzurum ve Bayburt illerini kapsayan Çoruh Nehri Havzası Rehabilitasyon Projesi (ÇNHRP) bünyesindeki havza ıslah faaliyetlerinin vejetasyon yapısı üzerindeki etkilerini belirlemeyi amaçlamaktadır. Araştırma modelinde, 12 mikro havzada belirlenen 708 örnekleme noktasında katmanlı basit rastgele örnekleme yöntemi kullanılmıştır. Veriler, mera alanlarında 1 m’lik transekt çubukları ve bozuk ormanlarda 20 m’lik çelik şerit metreler yardımıyla toplanmış; ortalama örtme derecesi, birey ve tür sayısı ile Shannon-Wiener ve Simpson biyoçeşitlilik indisleri hesaplanarak analiz edilmiştir. Bulgular, 2014 yılı mevcut durum tespitinde %40 olan ortalama vejetasyon örtme derecesinin faaliyetler neticesinde %66 seviyesine yükseldiğini ortaya koymuştur. Faaliyet alanlarındaki örtme artışı (%78), kontrol alanlarından (%52) anlamlı derecede yüksek bulunmuştur. Ayrıca, tür sayısında faaliyet alanlarında %66, kontrol alanlarında ise %57’lik bir artış saptanmıştır. Sonuç olarak, teknik müdahalelerin ve sahaların otlatmaya kapatılmasının doğal restorasyon süreçlerini önemli ölçüde hızlandırdığı, ancak kurak ve sığ topraklı alanlarda ağaçlandırma yerine koruma odaklı faaliyetlerin önceliklendirilmesi gerektiği tartışılmaktadır. Çalışma, havza rehabilitasyonunun biyolojik çeşitliliği ve ekosistem direncini artırmadaki kritik rolünü kanıtlamaktadır.
This study aims to determine the effects of watershed reclamation activities on vegetation structure within the Çoruh River Basin Rehabilitation Project (CNHRP), conducted under the coordination of the General Directorate of Forestry (OGM) and covering the provinces of Artvin, Erzurum, and Bayburt. In the research model, a stratified simple random sampling method was employed across 708 sampling points identified within 12 micro-catchments. Data were collected using 1-meter transect rods in rangelands and 20-meter steel measuring tapes in degraded forests; the analysis was performed by calculating the average crown cover, number of individuals and species, as well as the Shannon- Wiener and Simpson biodiversity indices. The findings revealed that the average vegetation cover, which was 40% in the baseline assessment in 2014, increased to 66% as a result of the project activities. The increase in cover within the treatment areas (78%) was found to be significantly higher than that in the control areas (52%). Additionally, a species richness increase of 66% was detected in the treatment areas, compared to a 57% increase in the control areas. In conclusion, it is discussed that technical interventions and the exclusion of sites from grazing substantially accelerate natural restoration processes; however, protection-oriented activities should be prioritized over afforestation in arid areas with shallow soils. This study demonstrates the critical role of watershed rehabilitation in enhancing biological diversity and ecosystem resilience
This study aims to determine the effects of watershed reclamation activities on vegetation structure within the Çoruh River Basin Rehabilitation Project (CNHRP), conducted under the coordination of the General Directorate of Forestry (OGM) and covering the provinces of Artvin, Erzurum, and Bayburt. In the research model, a stratified simple random sampling method was employed across 708 sampling points identified within 12 micro-catchments. Data were collected using 1-meter transect rods in rangelands and 20-meter steel measuring tapes in degraded forests; the analysis was performed by calculating the average crown cover, number of individuals and species, as well as the Shannon- Wiener and Simpson biodiversity indices. The findings revealed that the average vegetation cover, which was 40% in the baseline assessment in 2014, increased to 66% as a result of the project activities. The increase in cover within the treatment areas (78%) was found to be significantly higher than that in the control areas (52%). Additionally, a species richness increase of 66% was detected in the treatment areas, compared to a 57% increase in the control areas. In conclusion, it is discussed that technical interventions and the exclusion of sites from grazing substantially accelerate natural restoration processes; however, protection-oriented activities should be prioritized over afforestation in arid areas with shallow soils. This study demonstrates the critical role of watershed rehabilitation in enhancing biological diversity and ecosystem resilience
Açıklama
Anahtar Kelimeler
Biyoçeşitlilik, Çoruh havzası, Erozyon kontrolü, Havza rehabilitasyonu, Vejetasyon izleme, Biodiversity, Çoruh basin, Erosion control, Basin rehabilitation, Vegetation monitoring
Kaynak
Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
27
Sayı
2
