Ömer Karaöz

• Istanbul University

for shallow waters No need high crane No need core catcher and no loss of top sediments because of flexible plant sheet two ton vacuum force no problem

Abstract: Humic acids (HAs) are versetile natural products which are alkali soluble part of humic substances (HA, FA and Humas). HAs are used in many applications such as agriculture, animals’ health and feeding, pharmaceutical, foods, cosmetics and biomedical applications. In our present study, extraction and purification of HA were carried out fr...

Sediment deformations

It is difficult to sample cores without disturbing the physical properties of sedimentary assemblages in lakes with sediments containing high organic matter in shallow waters. Among the reasons for this are the use of different variety of valves are sediment holder adapters at the pipe bottom and the need for full isolated vacuum-former at top side...

Dünyadaki tüm karasal alanın %3’ünü yani 400 milyon hektarlık alanı kaplayan turbalıklar, FAO toprak sınıflandırmasında histosoller grubunda yer alan en az 40 cm veya daha kalın bir organik madde birikimine sahip organik toprak materyalleridir. Turba oluşumu en basit haliyle bitki materyalinin sınırlı olarak ayrışması ve birikmesiyle meydana gelmek...

Enzymes that catalyze biochemical reactions in the cell, the protein molecules in the structure. Hydrolysis reactions in the cell to continue on a regular basis are compounds found in the cell. Without any structural change, allowing the acceleration of chemical reactions catalysts are defined as. Soil enzyme activity and soil fertility, soil micro...

Hümik maddeler, insanlık tarihinin her döneminde doğada izlerine rastlanılan ilginç makromoleküllerdir. Bu maddeler hümik asit, fulvik asit ve humin olmak üzere üç bileşenden oluşmaktadır. Hümik asit koyu kahve renkli veya siyah renkte olup uzun zincirli yüksek molekül ağırlıklı maddelerdir. Aynı kaynaktan elde edilen hümik maddeler arasında farklı...

Humic substances are the macromolecules which are the major components of the natural organic matter in soil and water. They composed of three fractions: humic acid, fulvic acid and humin. Humic acids are the long chained substances in dark brown or black color and have high molecular weight. They can be dissolved solely in water when soil pH is hi...

577 | I n t e r n a t i o n a l C a u c a s i a n F o r e s t r y S y m p o s i u m Abstract: The study addressed the effect of altitude on soil properties and leaf traits in wild Vaccinium arctostaphylos L. populations in the forest understorey in Fırtına River Basin. For this purpose, 9 experimental sites were taken in three different levels of a...

Air pollution has become an actual problem in Balikesir because of rapid urbanisation and increasing of the polluting sources. Air pollutionproblems occur under the unfavorable meteorological conditions which increase in frequency of occurrence in winter due to use of low quality lignite coals for heating. The `Protection of Air Quality' in Turkey...

The first remarkable research about the effects of air pollution on forests in Turkey has been carried out in 1951. People are generally interested in visible effects of air pollution in urban areas. In fact, effects of air pollution on forests and plants covering the rural areas and, especially, sensitive mountainous forested regions have been neg...