EROZYONUN BELİRLENMESİNDE YÜZEYSEL AKIŞ PARSELİ KULLANIMININ İRDELENMESİ

Arazi ya da laboratuar koşullarında, yağmur altında veya yapay yağmurlama kullanılarak erozyon, toprak kaybı, yüzeysel akış veya infiltrasyon ölçümleri yapılan parseller, genel anlamda yüzeysel akış parselleri olarak adlandırılmaktadır. Yüzeysel akış parsellerinden güvenilir veri elde edebilmek için uyulması gereken birçok esas bulunmaktadır. Bunların en önemlileri; yüzeysel akış parselinin arazi üzerine tesisi, parsel boyutlarının belirlenmesi, çalışma amacına uygun parsel kullanımı, veri toplama yöntemi, ölçüm süresi ve sıklığı, yüzeysel akış ve sediment örneklemesinin usulüne uygun yapılması, karşılaşılan sorunlar ve bu sorunların nasıl giderileceği şeklinde sıralanabilir. Parsel çalışmalarında bu esasların çalışma amacına, yönteme, çalışma süresine, çalışmanın laboratuar ortamı ya da arazi üzerinde olmasına bağlı olarak oldukça değişken olduğu görülmektedir. Daha önce yapılan çalışmalardan yararlanılarak, yüzeysel akış parselleri yukarıda belirtilen esaslar çerçevesinde ele alınmış ve irdelenmiştir.

Anahtar Kelimeler:

Erozyon, yüzeysel akış parseli, parsel ölçümleri, parsel kurulumu, parsel boyutu

EXAMINATION OF RUNOFF PLOT USE IN DETERMINING SOIL EROSION

The plots used for measurements of erosion, soil loss, runoff or infiltration in field or laboratory conditions under natural rain or using artificial rainfall are generally called runoff (field) plots. There are lots of principle to obey to get reliable data on runoff plots. The most important of these may be listed as construction of the plot, determine the plot sizes, using appropriate runoff plot for study aim, the method of data collection, measurement period and frequency, the accuracy of runoff and sediment sampling from runoff plot, the problems encountered and how these problems can be solved. It is observed that these principles in plot studies greatly vary depending on study aim, method, study period, whether the study is carried out in laboratory conditions or in the field. In this study, runoff plots were evaluated and examined within the framework of the principles mentioned above taking into consideration the previous studies.

Keywords:

Erosion, runoff plot, plot measurements, plot construction, plot size,

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