Gürkan, Behzat
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Prof.Dr.
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01.01.02.02. Matematik Bölümü
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Former Staff
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Sustainable Development Goals
1NO POVERTY
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2ZERO HUNGER
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3GOOD HEALTH AND WELL-BEING
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4QUALITY EDUCATION
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5GENDER EQUALITY
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6CLEAN WATER AND SANITATION
1
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7AFFORDABLE AND CLEAN ENERGY
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8DECENT WORK AND ECONOMIC GROWTH
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9INDUSTRY, INNOVATION AND INFRASTRUCTURE
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10REDUCED INEQUALITIES
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11SUSTAINABLE CITIES AND COMMUNITIES
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12RESPONSIBLE CONSUMPTION AND PRODUCTION
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13CLIMATE ACTION
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14LIFE BELOW WATER
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15LIFE ON LAND
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16PEACE, JUSTICE AND STRONG INSTITUTIONS
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17PARTNERSHIPS FOR THE GOALS
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Documents
13
Citations
175
h-index
8
Documents
11
Citations
123
Scholarly Output
5
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4
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WoS Citation Count
38
Scopus Citation Count
36
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0
WoS Citations per Publication
7.60
Scopus Citations per Publication
7.20
Open Access Source
3
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0
| Journal | Count |
|---|---|
| Hacettepe Egitim Dergisi | 1 |
| Hacettepe Journal of Biology and Chemistry | 1 |
| Hacettepe Üniversitesi Eğitim Fakültesi Dergisi | 1 |
| iForest - Biogeosciences and Forestry | 1 |
| Plant Ecology | 1 |
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5 results
Scholarly Output Search Results
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Article Citation - WoS: 26Citation - Scopus: 26Long-term post-fire dynamics of co-occurring woody species in Pinus brutia forests: the role of regeneration mode(SPRINGER, 2014) Cagatay Tavsanoglu; Behzat Gurkan; Tavşanoğlu, Çağatay; Gürkan, BehzatRegeneration mode is one of the key attributes determining population structure and dynamics of plant species. We investigated long-term patterns after fire in the cover of plant species in a 100-year chronosequence of burned Pinus brutia forests in a humid Mediterranean climate region in Turkey. Significant trends were present in the change of cover in major species through post-fire chronosequence and species with similar trends were clustered in relation to their regeneration modes. Obligate resprouters increased their cover from the early post-fire years to the later stages while cover of obligate seeders with a soil seed bank increased in the early years but then decreased through time. Facultative resprouters were at an intermediate position with an increase in cover until mid-successional stages and then a decrease through time. The cover of the only obligate seeder with a canopy seed bank (P. brutia) followed a linear increasing trend during the succession. When species with the same regeneration mode were grouped the same trends were observed with more explained variances. A few life-history traits were enough to explain the observed trends. Our study shows that regeneration mode is an explanatory functional grouping system for describing long-term post-fire dynamics of Mediterranean Basin woody species. We suggest that regeneration mode must be a major component of any vegetation or forest stand dynamics model in the Mediterranean Basin. This result has important implications for the management of Mediterranean Basin ecosystems and can potentially be extrapolated to other Mediterranean-type fire-prone ecosystems.Article Citation - WoS: 12Citation - Scopus: 10Post-fire recovery of the plant community in pinus brutia forests: Active vs. indirect restoration techniques after salvage logging(SISEF - Italian Society of Silviculture and Forest Ecology Viale dell Ateneo Lucano Potenza I-85100, 2018) Okan Urker; Çağatay Tavşanoğlu; Behzat Gürkan; Ürker, Okan; Tavşanoğlu, Çağatay; Gürkan, BehzatAlthough reforestation is frequently utilized in many Mediterranean Basin countries to restore burned Mediterranean pine woodlands post-fire recovery of the plant community is often neglected. To compare the post-fire recovery of the plant community following active and indirect post-fire restoration techniques we studied three post-fire regeneration treatments in a salvage-logged Pinus brutia forest including two active (plantation and seeding) restoration techniques and one indirect (natural regeneration). An unburned pine stand was also included in the study. We applied the point-intercept method to obtain data on the presence and cover of individual species and functional groups in six replicate one-hectare plots for each treatment. We found no significant differences in plant species richness among post-fire treatments, however plant community composition and vegetation structure were significantly different between treatments. There was a shift in plant community structure when active restoration techniques were applied from the woody-and resprouter-dominated plant community of the unburned site to an annual herbaceous-and non-resprouter-dominated one. Our results suggest that active restoration by planting tree saplings in Mediterranean pine forests after a fire may decrease the plant community’s resilience and provide empirical evidence that pine plantation treatments change the plant species composition of these forests. These results have important implications for post-fire management of Mediterranean Basin pine forests. © 2018 Elsevier B.V. All rights reserved.Other AKTS kredisi anket analizi: Yaşar Üniversitesi uygulaması(2011) Albayrak, Raif Serkan; Gürkan, BehzatBir dersin AKTS kredisi ortalama öğrencinin dersi başarıyla tamamlaması için gereken iş yükünü saat cinsinden gösterir. Başlangıçta öğretim üyesinin kişisel birikimine bağlı olarak belirlenen kredi, sonrasında düzenli olarak öğrencilere yapılan anketlerle denetlenir. Ancak, uygulamada anket çalışmaları pek çok sorun içermektedir. Anket belli bir öğrenci grubuna mı yoksa dersi alan tüm öğrencilere mi yapılmalıdır? Anketi yanıtlayan ve anket sonuçlarından etkilenen öğrenci gruplarının farklı olması, anketle toplanan verinin güvenilirliğini düşürür mü? "Ortalama öğrenci" kimdir? Toplanan veri nasıl fıltrelenmeli ve analiz edilmelidir? Makalenin hedefi bu soruları tartışmaya açmak, istatistiki çözüm önerileri getirmektir. Bu amaçla sekiz farklı model tanımlanmış ve performansları karşılaştınlmıştır.Article Calculating ECTS Credits:Case of Yaşar University(2011) Albayrak, Raif Serkan; Gürkan, BehzatArticle Physical and chemical properties of the soils at burned and unburned Pinus brutia Ten. forest sites in the Marmaris region Turkey(2010) Behzat GÜRKAN; Çağatay TAVŞANOĞLU; Tavşanoğlu, Çağatay; Gürkan, BehzatThe aim of this study was to determine the long-term post-fire changes to the physical and chemical properties of the soil in Pinus brutia Ten. forests found on ophiolitic rocks in the Marmaris region southwestern Turkey. Six sites that had burned at different times (3 6 8 9 16 26 years ago) and two sites that had not burned for a long time (at least 50 and 100 years) were selected. Three plots 1 ha in size were randomly selected within each site and three soil samples were collected from randomly selected points within each plot. Soil texture pH $CaCO _3$ content organic matter content electrical conductivity and exchangeable cation concentrations of the soil samples were determined. Soil texture did not vary among the study sites and percentages of sand silt and clay did not differ significantly among the study sites. Organic matter content was significantly higher at unburned sites but was similar at all the burned sites. There was no significant difference between the three-year-old site and the other sites in terms of exchangeable cation concentrations electrical conductivity pH or amount of $CaCO _3$. Although there were some slight trends with time since the fire for some of the variables evaluated soil properties did not change drastically with time or at least changed without a trend among the study sites. This was attributed both to the importance of studying early post-fire years to detect a change in soil properties and of site heterogeneity.
