Raw-Material Quality of Fast Grown Eucalyptijs Globulus During the First Year

IAWA Journal ◽  
1990 ◽  
Vol 11 (4) ◽  
pp. 421-427 ◽  
Author(s):  
Helena Pereira ◽  
Clara Araújo

The raw material quality of Eucalyptus globulus during the first year was assessed in an experimental plantation established under four management strategies (control, fertiliser, irrigation and fertiliser/irrigation). The variation of bark content, moisture content, specific gravity and fibre length along the stem for 6-months and II-months-old trees is presented. Bark content decreases with tree diameter and was lowest for the irrigated and fertilised trees. Wood moisture was negatively correlated with specific gravity. No correlation was found between specific gravity and growth rate and fibre length was generally independent of management strategy.

IAWA Journal ◽  
1987 ◽  
Vol 8 (2) ◽  
pp. 182-186
Author(s):  
J.E. Phelps ◽  
J.G. Isebrands ◽  
R.M. Teclaw

The coppicing ability of Populus hybrid clones after dormant season harvesting is weil suited to a short-rotation, intensively cultured (SRIC) growth system. stems formed from coppice exhibit a greater amount of growth than first-rotation trees during the juvenile stage. This research examines and compares properties, including specific gravity and fibre length of the wood and bark, of 3-year-old firstrotation stems (from cuttings) and 3-year-old coppiced stems of three hybrid Populus clones grown und er SRIC. Trees produced from coppiced stumps were 1.5 to 2.5 times larger (in height and diameter at the base) than first-rotation trees after 3 years of growth. Some of the wood properties of the first-rotation trees differed from those of the coppiced trees. For example, wood specific gravity was higher and wood fibres were longer in the sampies removed from the basal portion of the first-rotation trees. Although significant, these differences were small and not important from an industrial standpoint. The increase in woody biom ass after coppicing is likely to be more important to industry than any decreases in wood properties expected during short-rotation, intensive culture of Populus trees.


2021 ◽  
Vol 11 (1) ◽  
pp. 51
Author(s):  
Agnes Caesarika Githanto Putri ◽  
Muhammad Muhammad ◽  
Cafid Fandeli

Wisata Alam Sumber Maron is a tourist destination in Malang Regency which is currently experiencing a surge in tourists. In addition, there are problems with the conversion of land from plantations to developed land. Both of these problems have an impact on the quality of the environment in Wisata Alam Sumber Maron, causing the tourist destination area to be unsustainable. The purpose of this research is to analyze the management strategies that can be applied in Wisata Alam Sumber Maron. The data analysis used is an analysis of the carrying capacity of the environment to determine its physical factors, stakeholder analysis to determine social factors and analysis of travel costs to determine economic factors. Based on the method used, the final result is ha the effective carrying capacity at the Wisata Alam Sumber Maron is 179 people/day. This figure is then used as a guideline for strategy formulation.The management strategy is formulated using the 4 pillars of tourism method as stated in the Undang-Undang Number 10 of 2009 about Kepariwisataan, namely the tourism industry, destinations, marketing, and tourism institutions.


2012 ◽  
Vol 27 (1) ◽  
pp. 130-136
Author(s):  
Antti Oksanen ◽  
Kristian Salminen ◽  
Jarmo Kouko ◽  
Elias Retulainen

Abstract Increase of filler content in paper improves quality of the final product and reduces raw material costs. However, this is often accompanied by deterioration of paper machine runnability. In this paper the effects of stratifying PCC (precipitated calcium carbonate) and TMP on fine paper quality and the mechanical properties of dry and wet paper were studied. In addition, a new method was introduced for evaluating the layer purity of pulp and filler stratifying by measuring the fibre length distribution in the thickness direction of the paper. The filler addition reduced the mechanical properties of paper more with chemical than mechanical pulps, with similar dry tensile indices. Stratifying filler onto paper surfaces gave higher dry tensile strength properties than samples with mixed structures, whereas only a small positive effect was detected for wet tensile and relaxation properties as a result of stratifying. Stratifying fillers only had a small negative effect on the internal bond strength. Stratifying or mixing TMP with a chemical pulp blend was shown to enable an increase in the filler content of 10% without significant changes in the residual tension (tension after 0.475 s of relaxation) or tensile index of wet samples. Based on layer purity analysis, stratifying TMP and filler was found to be successful in these trials.


2001 ◽  
Vol 24 (6) ◽  
pp. 527-538 ◽  
Author(s):  
D. GIANNINI ◽  
M.A. PARIN ◽  
L. GADALETA ◽  
G. CARRIZO ◽  
A. ZUGARRAMURDI

2016 ◽  
Vol 14 (4) ◽  
pp. 370-383 ◽  
Author(s):  
Akanksha Singh ◽  
Rupali Gupta ◽  
Shilpi K. Saikia ◽  
Aakanksha Pant ◽  
Rakesh Pandey

AbstractWith increasing interest in natural products of plant origin for medicinal and health care benefits there is added emphasis on the quality of the source raw material. In most cases the vegetative tissues and organs are the source of the required raw material. However, such tissues/organs may become infested/susceptible to many diseases causing deterioration of the quality of the desired economic product and loss of genetic resources. Considerable progress has been made with respect to the identification of disease causing organisms, and their pathogenic impact at organ, cellular and biochemical level. This review focuses on various diseases caused by bacteria, fungi, nematodes, viruses and phytoplasmas threatening the yield, biomass, bioactive potential of medicinal and aromatic plants of the sub-tropics. Several studies suggest that management of diseases through biological measures is more effective to check multiple diseases. Necessary management strategies for efficient disease management to realize quality raw material and enhanced metabolite productive potential have been outlined.


PALAPA ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 309-323
Author(s):  
Muflikha Muflikha ◽  
Budi Haryanto

This paper aims to analyze the Principal's leadership management strategy in improving the Performance of Educators and Education Personnel. The Headmaster Leadership management strategy is one of the keys to success for improving the quality of performance of educators and education personnel. Increasing the quality of the performance of educators and education personnel will have a significant impact on the educational process and the achievement of desired educational goals. This paper uses a descriptive qualitative approach that seeks to describe the form of leadership management strategies for school principals in order to improve the quality of educational performance and education personnel. The results of this study indicate that (1) the Principal's management strategy has a very important role in improving the performance of educators and education personnel. (2) the quality of the performance of educators and education personnel has an impact on improving the quality of learning and achieving educational goals to the fullest.


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