Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands

Kavaklıgil, S. Sünal; Yılmaz, Ü.; Erşahin, S.

Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands

Ü. Yılmaz, (Çankırı Karatekin Üniversitesi, Orman Fakültesi, Toprak Bilimi ve Ekoloji Bölümü, Çankırı, Türkiye)

S. Erşahin, (Çankırı Karatekin Üniversitesi, Orman Fakültesi, Toprak Bilimi ve Ekoloji Bölümü, Çankırı, Türkiye)

S. Sünal Kavaklıgil (Çankırı Karatekin Üniversitesi, Orman Fakültesi, Toprak Bilimi ve Ekoloji Bölümü, Çankırı, Türkiye)

Anadolu Orman Araştırmaları Dergisi

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Yıl: 2020 Cilt: 6 Sayı: 1 Sayfa Aralığı: 1 - 8 Metin Dili: İngilizce İndeks Tarihi: 11-01-2023

Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands

Öz:

Semi-arid areas comprise a considerable acreage in Turkey and the vegetation cover is very sensitive in those areas. This study was conducted in a typical semi-arid area at the Çankırı Karatekin University Campus for the purpose of analyzing spatial relationships between soil properties and the number of plant species (NPS) per square meter, which is an important indicator for desertification studies. Two transects (one normal and other parallel to the slope) were placed on north-east and another two transects on south-west aspect of a hill in the study area. Soil samples were taken from 0-5 and 5-20 cm soil depth from 5-m apart on each transect and the NPS per square meter was determined at each sampling point. The soil samples were analyzed for physical (sand, silt, clay, bulk density, field capacity, wilting point, plant available water content, aggregate stability) and chemical (pH, electrical conductivity, organic matter and CaCO3 contents) properties. Descriptive statistics were calculated for all soil variables and the NPS. The results showed that the NPS was similar in mean and coefficient of variation on all the four transects. The correlation coefficients among the measured soil variables and the NPS changed between 0 and 0.82. The correlogram analysis of soil variables and cross-correlogram analysis between soil variables and the NPS were performed. The results of geostatistical analysis showed that sand content, bulk density, plant available water content, silt content, and EC spatially related to the NPS. The results have a potential for use in studies of grassland development.

Anahtar Kelime: Correlogram analysis desertification geostatistics plant diversity semi-arid grasslands

Yarı-kurak Bir Merada Toprak Karakteristikleri ve Bitki Zenginliğinin Uzaysal Değişkenliğinin Değerlendirilmesi

Öz:

Yarı-kurak alanlar Türkiye’de önemli bir yer kaplar ve bu alanlardaki vejetasyon dış etkenlere oldukça hassastır. Bu çalışma Çankırı koşullarında tipik-yarı kurak alanları temsilen seçilen bir merada bitki tür zenginliği ile toprak özellikleri arasındaki uzaysal ilişkilerin incelenmesi amacıyla yürütülmüştür. Birisi eğime dik ve diğeri eğime paralel olmak üzere iki örnekleme hattı tepenin kuzey-doğu ve güney-batı bakılarına yerleştirildi. Hatlar üzerinde 5 er m ara ile 0-5 ve 5-20 cm derinliklerden toprak örnekleri alınarak toprak fiziksel özellikleri (kum, silt, kil hacim ağırlığı, tarla kapasitesi, solma noktası ve agregat stabilite indeksi) ve kimyasal özellikler (pH, elektriksel iletkenlik, organik madde ve CaCO3 içeriği) için analiz edildi. Aynı zamanda örnekleme anında, her bir örnekleme noktasında 1 m2 ’lik alanda bitki tür sayısı belirlendi. Her bir toprak değişkeni ve bitki tür sayısı için tanımsal istatistikler hesaplandı. Sonuçlar bitki tür sayısına ilişkin her dört hat için hesaplanan aritmetik ortalama ve değişkenlik katsayısı değerlerinin benzer olduğunu göstermiştir. Toprak özellikleri arasında hesaplanan korelasyon katsayıları 0 ve 0.82 arasında değişen değerler almıştır. Korelogram analizi kum içeriği, silt içeriği, hacim ağırlığı, bitkiye yarayışlı su içeriği ve EC ile bitki tür sayısı arasında uzaysal ilişkinin olduğunu göstermiştir. Sonuçların mera geliştirme çalışmalarında kullanım potansiyeli bulunmaktadır.

Anahtar Kelime: Korelogram analizi Çölleşme Jeoistatistik Bitki çeşitliliği Yarı-kurak meralar.

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

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APA	Yılmaz Ü, Erşahin S, Kavaklıgil S (2020). Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands. , 1 - 8.
Chicago	Yılmaz Ü.,Erşahin S.,Kavaklıgil S. Sünal Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands. (2020): 1 - 8.
MLA	Yılmaz Ü.,Erşahin S.,Kavaklıgil S. Sünal Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands. , 2020, ss.1 - 8.
AMA	Yılmaz Ü,Erşahin S,Kavaklıgil S Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands. . 2020; 1 - 8.
Vancouver	Yılmaz Ü,Erşahin S,Kavaklıgil S Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands. . 2020; 1 - 8.
IEEE	Yılmaz Ü,Erşahin S,Kavaklıgil S "Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands." , ss.1 - 8, 2020.
ISNAD	Yılmaz, Ü. vd. "Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands". (2020), 1-8.

APA	Yılmaz Ü, Erşahin S, Kavaklıgil S (2020). Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands. Anadolu Orman Araştırmaları Dergisi, 6(1), 1 - 8.
Chicago	Yılmaz Ü.,Erşahin S.,Kavaklıgil S. Sünal Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands. Anadolu Orman Araştırmaları Dergisi 6, no.1 (2020): 1 - 8.
MLA	Yılmaz Ü.,Erşahin S.,Kavaklıgil S. Sünal Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands. Anadolu Orman Araştırmaları Dergisi, vol.6, no.1, 2020, ss.1 - 8.
AMA	Yılmaz Ü,Erşahin S,Kavaklıgil S Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands. Anadolu Orman Araştırmaları Dergisi. 2020; 6(1): 1 - 8.
Vancouver	Yılmaz Ü,Erşahin S,Kavaklıgil S Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands. Anadolu Orman Araştırmaları Dergisi. 2020; 6(1): 1 - 8.
IEEE	Yılmaz Ü,Erşahin S,Kavaklıgil S "Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands." Anadolu Orman Araştırmaları Dergisi, 6, ss.1 - 8, 2020.
ISNAD	Yılmaz, Ü. vd. "Assessment of Spatial Variability of Soil Characteristics and Plant Diversity in Semi-Arid Grasslands". Anadolu Orman Araştırmaları Dergisi 6/1 (2020), 1-8.