A site quality model for blackbutt (Eucalyptus PilularisSmith)

1995 ◽  
Vol 58 (2) ◽  
pp. 31-34
Author(s):  
Spencer Bruskin
Keyword(s):  
Site Quality ◽  
Quality Model ◽  
A Site

AN EVALUATION OF SEVERAL METHODS OF ESTIMATING SITE INDEX OF IMMATURE STANDS

1952 ◽  
Vol 28 (3) ◽  
pp. 63-74 ◽  
Author(s):  
John W. Ker
Keyword(s):  
Basal Area ◽  
Site Index ◽  
Site Quality ◽  
Average Height ◽  
Office Procedure ◽  
Minimum Sample ◽  
A Site ◽  
The University ◽  
Site Classes

The use of dominant heights for the estimation of site index is compared with the use of the average of dominant and codominant heights. Data collected on the University Research Forest are presented to illustrate the variability in tree heights and diameters within the two upper crown classes in well-stocked stands of immature Douglas fir.HeightIt is shown that the use of dominant heights reduces considerably the number of measurements required for a site index determination of given accuracy. Minimum sample sizes are given for three limits of accuracy for use in different site qualities. A general field and office procedure is outlined for the determination of minimum sample size in stands other than those described.DiameterThe use of diameter in site determination is discussed. Site indices based on the height of the tree of mean diameter, the height of the tree of mean basal area, and mean height are compared.ConclusionsQuick estimates of site quality can best be obtained by the measurement of total height of sample dominant trees, selected at random. For this purpose, tables are presented which list the average height of dominant trees by age and site classes for use in stands of Douglas fir, and western hemlock, respectively.

Water Quality Controls in Construction

2006 ◽  
Author(s):  
Claude J. Wookey
Keyword(s):  
Water Quality ◽  
Quality Control ◽  
Human Exposure ◽  
Water Discharge ◽  
The United States ◽  
Site Quality ◽  
Construction Sites ◽  
Water Quality Control ◽  
Preventative Measure ◽  
A Site

Water Quality control for construction sites is a requirement at any site within the United States. Erosion Controls are the first, and many times, last preventative measure for water discharge from a site. If these fail, streams, wetlands, or even off-site upland areas (yards, etc.) are adversely affected. Site quality is affected when valuable soil is lost and restoration requires replacement. Human exposure to contaminants, violation of governmental regulations, contractor reputation, and the overall economics involved in construction are at risk.

SNSQUAL: A Social Networking Site Quality Model

2016 ◽  
Vol 23 (3) ◽  
pp. 19-36 ◽  
Author(s):  
Brandon Phillips ◽  
Daniel Peak ◽  
Victor Prybutok
Keyword(s):  
Social Networking ◽  
Social Networking Site ◽  
Site Quality ◽  
Quality Model

Distribution of the radiative index of dryness and forest site quality in a mountainous watershed

1984 ◽  
Vol 14 (5) ◽  
pp. 717-721 ◽  
Author(s):  
S. J. Tajchman
Keyword(s):  
Complex Terrain ◽  
Forest Biomass ◽  
Aridity Index ◽  
Site Quality ◽  
Seasonal Effects ◽  
Forest Site ◽  
Net Radiation ◽  
Energy Exchanges ◽  
A Site

The radiative aridity index, β (i.e., the ratio of yearly sums of net radiation to those of the latent heat of precipitation), and forest biomass were obtained for 245 terrain segments [Formula: see text] in an Appalachian watershed. A hypothesis was tested that β can be used as a site quality indicator in complex terrain. Regression analysis yielded the following relationship between the average forest biomass of the watershed (Mo = 15.94 kg m−2), the biomass (Mi), the radiative aridity index (βi), and the azimuth (Ai) of terrain segments: Mi/M0 = 2βi[l−Ai/2π + (Ai/2π)4] ± 0.27. The value of the expression in the bracket reaches its maximum for Ai = 0 (north facing slopes), and a minimum for Ai = 227° (southwest facing slopes). A possible interpretation of the obtained relationship is that p represents long term (e.g., daily and seasonal) effects of water and energy exchanges of terrain segments on growth, and the expression in the bracket represents the aspect-related effects of daily fluctuations of microclimate of terrain segments on growth.

Regeneration in a Pole-Stage Forest of Eucalyptus regnans Subjected to Different Fire Intensities in 1982

1996 ◽  
Vol 44 (4) ◽  
pp. 393 ◽  
Author(s):  
DH Ashton ◽  
DG Martin
Keyword(s):  
Soil Seed Bank ◽  
Initial Density ◽  
Site Quality ◽  
First Year ◽  
Adjacent Area ◽  
Eucalyptus Regnans ◽  
Species Dominance ◽  
Vegetative Regeneration ◽  
Seed Regeneration ◽  
A Site

In 1982, fire burnt stands of Eucalyptus regnans F.Muell. in a relatively dry site in Victoria. In one area, the fire killed both canopy and understorey; in an adjacent area, only understorey was destroyed. Regeneration in the two areas was similar over the following year, but diverged thereafter to produce understoreys with different species dominance. In both stands, a poor supply of mature E. regnans seed in the crowns at the time of the fire resulted in relatively low initial density of seedlings: in the firekilled stand, this meant that closure of the canopy of the stratum was delayed for 5 or 6 years; however, in the understorey-killed stand, none of the E. regnans seedlings survived for 2 years. The soil seed bank was reduced more severely in the fire-killed than in the understorey-killed stand, although not all seed germinated in the first year. Vegetative regeneration of herbs and shrubs occurred from shallower layers of soil in the understorey-killed than in the fire-killed stand. An increase in soil fertility after the fire, as measured by seedling bioassay, was apparent only in the first season after the fire and was correlated with higher levels of available P. In the understorey-killed stand, fertility in the topsoil was greater than that in the fire-killed stand, and growth in diameter at breast height of dominant trees was significantly greater than in adjacent unburnt stands in the first few years after the fire. By comparison, when fire burnt through a site of higher rainfall after the maturation of the current crop of canopy-stored seed, regeneration was initially denser and growth considerably greater than that in the drier site. The study demonstrated that the course of secondary succession depends on site quality, timing of the fire in relation to seed production, soil seed germination, vegetative growth from protected organs, the severity of the fire, the presence or absence of browsing, and, in the long term, the frequency of recurrent fire.

A New Web Site Quality Assessment Model for the Web 2.0 Era

2010 ◽  
pp. 387-410 ◽  
Author(s):  
Minseok Pang ◽  
Woojong Suh ◽  
Jinwon Hong ◽  
Jongho Kim ◽  
Heeseok Lee
Keyword(s):  
Web 2.0 ◽  
Quality Assessment ◽  
Web Sites ◽  
Web Site ◽  
Assessment Model ◽  
Site Quality ◽  
Quality Model ◽  
Quality Dimensions ◽  
The Relationship ◽  
The Web

To find a strategy for improving the competitiveness of Web sites, it is necessary to use comprehensive, integrated Web site quality dimensions that effectively discover which improvements are needed. Previous studies on Web site quality, however, seem to have inconsistent and confusing scopes, creating a need of reconciliation among the quality dimensions. Therefore, this chapter attempts to provide a Web site quality model that can comprise all the quality scopes provided by previous studies. The relationship between the specific dimensions of the quality model and the characteristics or merits of Web 2.0 was discussed in this chapter with actual Web site examples. It is expected that this study can help Web sites improve their competitiveness in the Web 2.0 environment.

scholarly journals A framework for assessing quality of a web site

2018 ◽  
Vol 7 (2.8) ◽  
pp. 82
Author(s):  
M Vamsi Krishna ◽  
K Kiran Kumar ◽  
CH Sandiliya ◽  
K Vijaya Krishna
Keyword(s):  
Research Quality ◽  
Site Quality ◽  
Consumer Loyalty ◽  
Quality Factors ◽  
Web Architecture ◽  
Testing Region ◽  
A Site ◽  
Specific Part ◽  
The Web

The greater part of the data spread is occurring through Web locales and Web gateways. The adequacy and effectiveness with which data can be spread is especially reliant on the nature of the WEB webpage. The more the nature of a site/entryway, the more refined data can be made accessible to the client. In this manner it ends up noticeably important to characterize quality and furthermore decide the components that measure the nature of site. A quality factor should stick point to a specific part of the web architecture. It is additionally essential to characterize the sort of change that must be attempted for enhancing nature of the site from the perspective of a specific angle.This paper is principally cantered around deciding terrifically imperative quality factors that can consolidated mirror the aggregate quality and in addition nature of a specific part of web composition. This paper additionally gives a base utilizing which various types of upgrades that ought to be made all together that the nature of the Web website will significantly be improved. Websites are a piece of our regular day to day existence and are utilized to trade and to pass on data between client groups. Passed on data comes in various kinds, dialects and shapes and fuses content, pictures, sound, and video expected to illuminate, induce, offer, show a perspective or even change a demeanour or conviction. Regardless of site multiplication, appraisal of site quality remains a testing region of research. Quality identifies with consumer loyalty and furthermore with the level of achievement of client desire while interfacing a site.

Sign in / Sign up

Export Citation Format

Share Document