Plant communities of the geologic past can be reconstructed with high fidelity only if they were preserved in place in an instant in time. Here we report such a flora from an early Permian (ca. 298 Ma) ash-fall tuff in Inner Mongolia, a time interval and area where such information is filling a large gap of knowledge. About 1,000 m(2) of forest growing on peat could be reconstructed based on th...

Residential combustion has been identified as one of the main sources of particulate matter (PM); fine particles are important because of their adverse effects on human health and the environment. In this thesis, fine particle emissions originating from residential pellet combustion were characterized in different operational situations and using different raw materials as pellet fuel. Moreover...

Abstract Peat soil is a soft with more than 75% organic content, very high void ratio, and water content. In recent times, the lack of land use has made peat as an option for agriculture, drainage channels, also construction. Utilization usually causes content to decrease. Based on condition its can be classified into several conditions, which constant affected by ambient dried soil. Some impro...

To study the effect of different substrates on growth and yield of gerbera, this experiment was carried out as randomized completely block design with 14 treatments and 3 replications. Treatments were as fallowing: fine sand, peat+fine sand (25%+75%), peat+fine sand (50%+50%), perlite+peat (75%+25%), perlite+peat (50%+50%), perlite+peat (25% +75%), perlite+peat+expanded clay (25%+70%+5%), perli...

Production and quality parameters of three commercial strains of cultivated mushroom Agaricus bisporus (Lange, Imbach) were evaluated. A correlation matrix was made between the main parameters. Blancochamp BL-40, a smooth white hybrid, generally produced the greatest number of mushrooms and provided the highest yield, and its firm mushrooms showed high protein, dry matter, and soluble solid con...

Contents 1. Introduction 2. Physical properties of peat 2.1. Decomposition degree of peat 2.2. Water retention property of peat 2.3. Specific gravity and bulk density of peat 3.

Abstract The middle Miocene Warukin Formation in the Asem-Asem Basin (Kalimantan) contains a 20-m-thick coal seam (BL1) that is mined at Jumbang mine. seam, formed tropical peat, was studied to reconstruct peat-forming environment and compare its characteristics with those of similarly aged coals from Tutupan mine Barito ( ~ 15 Ma) subtropical Leoben Eastern Alps (Austria). Although all were om...

Abstract Peat soil has a relatively high water content of up to 400%. With moisture content, peat can hinder construction work. For this reason, in planning, an investigation must be carried out on the characteristics and strength soil, especially properties that affect bearing capacity withstand load it. This study aimed determine changes after mixing with cement iron oxide admixture. The vari...