Mapping Spatial Variations of Land Cover in a Coastal Landscape Using Pattern Metrics

AbstractThe aim of this study is to analyze spatial variations of land cover using pattern metrics in the case of a Mediterranean coastal area. Various composition and configuration metrics were used to analyze characteristics of land cover and its spatial heterogeneity. Satellite images (i.e., SPOT) were used to classify land cover. Pattern analyses were conducted in Erdemli district of Mersin, Turkey, from coastline to about 200m ASL. Landscape patterns were quantified and mapped on the basis of number of patches (NP), edge density (ED), largest patch index (LPI), aggregation index (AI), Shannon's and Simpson's diversity and evenness indices (SHDI, SIDI, SHEI, SIEI). A relationship between observed patterns/calculated indices and current land uses were investigated. Results showed that many of the pattern features differed between the coast and upper lands due to varying composition and configuration characteristics of land cover types under investigation

Detecting coastal urbanization and land use change in Southern Turkey

One of the most important needs in contemporary landscape planning is quantitative land use/land cover (LU/LC) change information. The reason a strong emphasis is placed on landscape change information is that it serves as an ecological and geographical basis for preparing and implementing development plans in a more sustainable manner. Multi-temporal analysis of LU/LC changes on the Eastern Mediterranean coast of Turkey revealed that there is a marked preference for these areas primarily for building development. This paper demonstrates a methodology that relies on quantitative analysis techniques for assessing spatiotemporal changes in LU/LC in the case of the eastern Mediterranean coast of Turkey. In this respect, satellite image datasets (SPOT panchromatic, Landsat TM) acquired in 1989, 1995, 2001 and 2007 were enhanced. Resulting images were classified and compared to detect coastal urbanization and development trends.  Post-classification change analyses were employed to quantify land cover conversions in three periods from 1985 to 1995, from 1995 to 2001 and from 2001 to 2007. This paper demonstrated that urban, agriculture and shrublands changed rapidly in this part of the Mediterranean coast

Change detection in Southern Turkey using normalized difference vegetation index (NDVI)

This study analyzed landscape changes in the Mediterranean using remotely sensed satellite images. Bitemporal Thematic Mapper (TM) scenes of Erdemli (Southern Turkey) acquired by Landsat satellites were analyzed to detect landscape changes in the study area, which supports a mosaic of landscapes from coastline to altitudes over tree line. Visible and near infrared bands (i.e. bands 3 and 4) of the near-anniversary (August) images from 1984 and 2006 were used to derive Normalized Difference Vegetation Index (NDVI) images. NDVI images for the earlier and later dates were analyzed. ASTER and Quickbird images, topographic maps, forest stand maps were used as ancillary data. Spatial distribution of change is mapped and interpreted. Results showed that forest regeneration took place especially in upper lands, while deforestation occurred at lower altitudes in relatively smaller patches in close proximity to the coast and to the roads. First published online: 14 Dec 201

Hematopoietic stem cell transplantation for adolescents and adults with inborn errors of immunity: an EBMT IEWP study.

peer reviewedAllogeneic hematopoietic stem cell transplantation (HSCT) is the gold standard curative therapy for infants and children with many inborn errors of immunity (IEI), but adolescents and adults with IEI are rarely referred for transplant. Lack of published HSCT outcome data outside small, single-center studies and perceived high risk of transplant-related mortality have delayed the adoption of HSCT for IEI patients presenting or developing significant organ damage later in life. This large retrospective, multicenter HSCT outcome study reports on 329 IEI patients (age range, 15-62.5 years at HSCT). Patients underwent first HSCT between 2000 and 2019. Primary endpoints were overall survival (OS) and event-free survival (EFS). We also evaluated the influence of IEI-subgroup and IEI-specific risk factors at HSCT, including infections, bronchiectasis, colitis, malignancy, inflammatory lung disease, splenectomy, hepatic dysfunction, and systemic immunosuppression. At a median follow-up of 44.3 months, the estimated OS at 1 and 5 years post-HSCT for all patients was 78% and 71%, and EFS was 65% and 62%, respectively, with low rates of severe acute (8%) or extensive chronic (7%) graft-versus-host disease. On univariate analysis, OS and EFS were inferior in patients with primary antibody deficiency, bronchiectasis, prior splenectomy, hepatic comorbidity, and higher hematopoietic cell transplant comorbidity index scores. On multivariable analysis, EFS was inferior in those with a higher number of IEI-associated complications. Neither age nor donor had a significant effect on OS or EFS. We have identified age-independent risk factors for adverse outcome, providing much needed evidence to identify which patients are most likely to benefit from HSCT

Kıyı alnaları yönetiminde uzaktan algılama yöntemleri ile izleme (Monitoring) programı

TEZ5117Tez (Doktora) -- Çukurova Üniversitesi, Adana, 2004.Kaynakça (s. 168-188) var.xii, 188 s. ; 30 cm.

Yumurtalık dalyan çamlığı tabiatı koruma alanının yönetim planlaması için bir veri bankası oluşturulması

TEZ2834Tez (Yüksek Lisans) -- Çukurova Üniversitesi, Adana, 1998.Kaynakça (s. 131-135) var.vi, 135 s. ; res. ; 30 cm.

Settlement Suitability Assessment and Visual Analysis Approaches for Southern Coastal Areas of the Van Lake

Bu çalışmada, Van Gölü Güney kıyı bölgesinde alanın doğal ve sosyo-kültürel peyzaj özellikleri ile biyofiziksel peyzaj özelliklerini bir bütün olarak ele alıp yerleşime uygunluk tespitinde yardımcı olabilecek bir model oluşturulması amaçlanmıştır. Bu kapsamda Van Gölü Güney kıyı bölgesi ve yakın çevresinde yerleşim uygunluğu ve göl görünürlük haritasının üretilmesi üzere uzaktan algılama ve coğrafi bilgi sistemleri araçlarından yararlanmıştır. Araştırma sonucunda alanını yerleşim uygunluklarına göre değerlendirme, yerleşim uygunlukları ile göl manzarası varlığına göre değerlendirme ve yerleşim uygunlukları ile seçilmiş bakı noktalarının uzman görüşleri sonuçlarına göre değerlendirmeler gerçekleştirilmiştir. Ortaya çıkan haritalar, veriler, bilgiler ve öneriler; doğal ve kültürel değerler açısından zengin olan Van Gölü'nün Güney kıyıları ve yakın çevresinde alan kullanım planlamaları ve önemli bir göl peyzajı niteliğindeki alanın yüksek değer taşıyan görsel kaynaklarının korunması için temel altlık durumunda olabilecektirThe present study was conducted with aims to create a model through visual analysis approaches for the southern coastal areas of the Van Lake that could aid in settlement suitability assessments, taking into consideration the socio-cultural and biophysical landscape properties of the region as a whole. With respect to this scope, remote sensing and geographical information tools were employed to create settlement suitability and lake visibility maps of the southern coastal areas of the lake. Assessments were made for settlement suitability of the lake coastal zones, for settlement suitability and lake view, and for settlement suitability and selected points of orientation along with expert opinions. Resulting maps, data, information and suggestions of this study may constitute a basic database for settlement planning of coastal zones and close surroundings of the Van Lake, and for preservation of visual aspects of lake landscape

Analysing urban expansion and land use suitability for the city of Kahramanmaras, Turkey, and its surrounding region

WOS: 000259041300036PubMed ID: 18080781This study aimed at quantifying changes in urban area of the city of Kahramanmaras (K.Maras) between 1948 and 2006, and analysing suitability of existing land use (LU) to the land potential. Urban change information was derived from two black-white monoscopic aerial photographs, and IKONOS and the QuickBird images acquired in 1948, 1985, 2000 and 2006, respectively. QuickBird image and soil map with 1:25,000 scale were used to analyze suitability of the current LU pattern to the land potential. The findings showed that the urban area of K.Maras has expanded approximately 13 times during the past six decades. According to current LU and the soil map, productive and moderately productive soils were largely (73.2%) allocated for agricultural activities, which means that there was a strong consistency between the agricultural LU type and the land capability. However, widespread agriculture on the non-productive soils, and urbanization on the fertile agricultural lands were assessed as unsuitable from sustainable LU viewpoint. Considering this phenomenon, it is possible to say that rapid urban expansion has a growing pressure on the fertile agricultural soils. Monitoring LU changes, particularly urbanization, and developing effective LU plans based on the land capability were determined as the most important approaches to encourage sustainable use of land.Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [TOVAG 104O161]The authors gratefully acknowledge the scientific research grant (TOVAG 104O161) of the Scientific and Technological Research Council of Turkey (TUBITAK)

Post-classification comparison of land cover using multitemporal Landsat and ASTER imagery: the case of Kahramanmara angstrom, Turkey

WOS: 000263832800031PubMed ID: 18398690This study assessed land cover (LC) changes in Kahramanmara angstrom (K.Mara angstrom) and its environs by using multitemporal Landsat and ASTER imagery, respectively belong to 1989, 2000 and 2004. A priori defined nine land cover classes in the classification scheme were urban and built-up, forest, sparsely vegetated areas, grassland, vegetated stream beds, unvegetated stream beds, bare areas, crop fields, and water bodies. Individual classifications were employed using the combination of both unsupervised and supervised classification methods. Iterative Self Organizing Data Analysis (ISODATA) was used to reduce spectral variation in the scenes arising from complex pattern of crop fields. Maximum Likelihood classifier was used in the LC classification of the individual images. Image pairs of consecutive dates were compared by overlaying the thematic LC maps and cross-tabulating the LC statistics. Urbanization and expansion of agriculture were the major reasons for the dramatic LC conversions. The amount of conversion from crop fields to water occurred as large as 927.67 ha, accounting for 73% of the total land-to-water conversion. Conversions to agriculture have mainly been occurred from grasslands and sparsely vegetated areas as large as 1,314.95 and 1,325.84 ha, respectively. Urban coverage doubled in this period as a result of 1,443.45 ha of increase. Urban area increased in the second period from 2,920 to 3,526 ha. Conversions to agriculture occurred at high amounts. A total of 1,075.79 ha area changed from sparsely vegetated areas to crop fields. A landscape-level environmental monitoring scheme based on satellite remote sensing was proposed for effective environmental resource management.Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [TOVAG 104O161]The authors gratefully acknowledge the scientific research grant (TOVAG 104O161) of the Scientific and Technological Research Council of Turkey (TUBITAK)