Correlation of flood sensitivity of sub-basins of the Büyükdere basin (Hı̇zan-Bı̇tlı̇s) with hydromorphometric analyses

Bülent Matpay

Makale detayları

Correlation of flood sensitivity of sub-basins of the Büyükdere basin (Hı̇zan-Bı̇tlı̇s) with hydromorphometric analyses

Yazarlar:

Bülent Matpay

Yayıncı:

Marmara University

Ana Başlıklar:

Doğal Afetler

Dergi:

International Journal of Geography and Geography Education Issue 53, pp.242-261

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001328398

pISSN:

2630-6336

Anahtar kelimeler:

Özet:

 The study area covers five sub-basins located in the southern part of Bitlis Hizan within the Dicle basin. These basins are located where human activities grape cultivation, gardening, rice, hazelnut cultivation, beekeeping activities, animal husbandry, population and settlement are high. Sub-basins have different characteristics lithology, elevation, slope, morphology. Floods have occurred in the basins at different times and loss of life and property has been experienced. Flood susceptibility of sub-basins with unique geographical conditions was correlated with hydromorphometric indices. In this direction, morphometric analyses were carried out through Geographic Information System GIS software by using digital elevation model, 125000 and 1100000 scale maps, remote sensing techniques and field observations. When the results of hydromorphometric calculations are compared for the basins, although the internal and external factors to which the basins are exposed are similar, the index results used for flooding differ. According to these results, when the flood susceptibility classification of the sub-basins are compared according to each other, they are Ağılözü basin, Pürtük river basin, Hizan basin, Kesen river basin and Cemeceli river basin respectively. In the sub-basins where flooding is predicted to increase gradually due to climate change, it is important to minimise the negative effects and to establish a proactive perspective in terms of the correct construction of the natural environment-human relationship. Briefly, in this study, it is thought that taking into account the results of comparative analyses of hydromorphometric indices for sub-basins will contribute to geographical planning settlements, agricultural activities and basin management studies and will contribute to the literature.

 The study area covers five sub-basins located in the southern part of Bitlis Hizan within the Dicle basin. These basins are located where human activities grape cultivation, gardening, rice, hazelnut cultivation, beekeeping activities, animal husbandry, population and settlement are high. Sub-basins have different characteristics lithology, elevation, slope, morphology. Floods have occurred in the basins at different times and loss of life and property has been experienced. Flood susceptibility of sub-basins with unique geographical conditions was correlated with hydromorphometric indices. In this direction, morphometric analyses were carried out through Geographic Information System GIS software by using digital elevation model, 125000 and 1100000 scale maps, remote sensing techniques and field observations. When the results of hydromorphometric calculations are compared for the basins, although the internal and external factors to which the basins are exposed are similar, the index results used for flooding differ. According to these results, when the flood susceptibility classification of the sub-basins are compared according to each other, they are Ağılözü basin, Pürtük river basin, Hizan basin, Kesen river basin and Cemeceli river basin respectively. In the sub-basins where flooding is predicted to increase gradually due to climate change, it is important to minimise the negative effects and to establish a proactive perspective in terms of the correct construction of the natural environment-human relationship. Briefly, in this study, it is thought that taking into account the results of comparative analyses of hydromorphometric indices for sub-basins will contribute to geographical planning settlements, agricultural activities and basin management studies and will contribute to the literature.

 The study area covers five sub-basins located in the southern part of Bitlis Hizan within the Dicle basin. These basins are located where human activities grape cultivation, gardening, rice, hazelnut cultivation, beekeeping activities, animal husbandry, population and settlement are high. Sub-basins have different characteristics lithology, elevation, slope, morphology. Floods have occurred in the basins at different times and loss of life and property has been experienced. Flood susceptibility of sub-basins with unique geographical conditions was correlated with hydromorphometric indices. In this direction, morphometric analyses were carried out through Geographic Information System GIS software by using digital elevation model, 125000 and 1100000 scale maps, remote sensing techniques and field observations. When the results of hydromorphometric calculations are compared for the basins, although the internal and external factors to which the basins are exposed are similar, the index results used for flooding differ. According to these results, when the flood susceptibility classification of the sub-basins are compared according to each other, they are Ağılözü basin, Pürtük river basin, Hizan basin, Kesen river basin and Cemeceli river basin respectively. In the sub-basins where flooding is predicted to increase gradually due to climate change, it is important to minimise the negative effects and to establish a proactive perspective in terms of the correct construction of the natural environment-human relationship. Briefly, in this study, it is thought that taking into account the results of comparative analyses of hydromorphometric indices for sub-basins will contribute to geographical planning settlements, agricultural activities and basin management studies and will contribute to the literature.

 Çalışma alanı, Dicle havzası içinde Bitlisiin Hizan ilçesinin güney kesiminde bulunan beş alt havzayı kapsamaktadır. Bu havzalar insan aktivitelerinin yoğun yapıldığı üzüm bağcılığı, bahçe işleri, pirinç çeltikleri, fındık yetiştiriciliği, arıcılık faaliyetleri, hayvancılık gibi, nüfus ve yerleşmenin fazla olduğu konumdadır. Alt havzalar farklı özelliklere litoloji, yükselti, eğim, morfoloji gibi sahiptir. Havzalarda farklı zamanlarda sel ve taşkınlar meydana gelmiş olup can ve mal kayıpları yaşanmıştır. Kendine özgü coğrafi koşullara sahip alt havzaların hidromorfometrik indislerle taşkın duyarlılıkları korele edilmiştir. Bu doğrultuda sayısal yükselti modelinden, 125000 ve 1100000 ölçekli haritalardan, uzaktan algılama teknikleri ve arazi gözlemlerinden faydalanılarak Coğrafi Bilgi Sistemi CBS yazılımı üzerinden morfometrik analizler yapılmıştır. Hidromorfometrik hesaplama sonuçları havzalar için kıyaslandığında havzaların maruz kaldığı iç ve dış etmenler benzerlik gösterse de taşkın için kullanılan indis sonuçları farklılık göstermektedir. Bu sonuçlara göre alt havzaların taşkın duyarlılığı sınıflaması birbirlerine göre kıyaslandığında fazladan aza doğru sırasıyla Ağılözü havzası, Pürtük Deresi havzası, Hizan havzası, Kesen Deresi havzası ve Cemeceli Deresi havzasıdır. İklim değişikliğinin tesiriyle gitgide su baskınlarının artış gösterebileceği öngörülen alt havzalarda olumsuz etkileri en aza indirgemek için proaktif bir bakışın oluşturulması gereklidir. Bu durum doğal ortam-insan ilişkisinin doğru kurgulanması bakımından önemlidir. Kısaca bu çalışmada ulaşılan indis sonuçlar ile alt havzaların karşılaştırılmalı analizi, taşkın bakımından havza önceliklendirilmesi, coğrafi planlaması yerleşim yeri, tarımsal aktiviteler gibi yapılabilir. Bu haliyle çalışma havza yönetim planlamalarına ve literatüre katkı sunacağı düşünülmektedir.

Makale detayları

Correlation of flood sensitivity of sub-basins of the Büyükdere basin (Hı̇zan-Bı̇tlı̇s) with hydromorphometric analyses

Yazarlar:

Bülent Matpay

Yayıncı:

Marmara University

Ana Başlıklar:

Doğal Afetler

Dergi:

International Journal of Geography and Geography Education Issue 53, pp.242-261

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001328398

pISSN:

2630-6336

Geographic information systems (GIS)

physical geography

basin

Hizan

morphometry

flood sensitivityCoğrafi bilgi sistemleri (CBS)

Fiziki coğrafya

Havza

Hizan

Morfometri

Taşkın duyarlılığı

Sayı

Makale detayları

Yazarlar: Bülent Matpay

Yayıncı: Marmara University

Ana Başlıklar: Doğal Afetler

Dergi: International Journal of Geography and Geography Education Issue 53, pp.242-261

Belge Tipi: Makale

Yayın Tarihi: 9/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001328398

pISSN: 2630-6336

Sayı

Yazarlar:

Bülent Matpay

Yayıncı:

Marmara University

Ana Başlıklar:

Doğal Afetler

Dergi:

International Journal of Geography and Geography Education Issue 53, pp.242-261

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001328398

pISSN:

2630-6336