scholarly journals Assessment of the Regeneration Potential of Red Oaks and Ash on Minor Bottoms of Mississippi

1999 ◽  
Vol 23 (3) ◽  
pp. 133-138 ◽  
Author(s):  
Keith L. Belli ◽  
Christopher P. Hart ◽  
John D. Hodges ◽  
John A. Stanturf
Keyword(s):  
Assessment System ◽  
Diameter Class ◽  
High Quality ◽  
Regeneration Potential ◽  
Breast Height ◽  
Growing Seasons ◽  
Red Oaks ◽  
System A ◽  
Advance Regeneration ◽  
Stump Sprouts

Abstract Plots were established to monitor the success of advance regeneration for red oaks and ash on eight high quality sites on minor bottoms in Mississippi. Data were collected pre- and post-harvest, and annually for 3 yr following harvest. Red oak and ash stems were initially categorized by height class, or by diameter class for those stems at least 1 in. in diameter at breast height. Survival and competitive position were monitored to provide estimates of the probability of producing at least one free-to-grow stem 3 growing seasons following stand harvest. Regardless of species, the competitive advantage of larger seedlings and stump sprouts over smaller seedlings (less than 1 ft tall) was clear. Less than 10% of the smaller seedlings were free-to-grow after 3 growing seasons, whereas 26% to 71% of the larger seedlings and stump sprouts were judged free-to-grow after the same amount of time. Results were used to revise an existing regeneration assessment system. A field tally sheet was developed to aid in the application of the revised system. South. J. Appl: For. 23(3): 133-138.

scholarly journals Oak Regeneration Guidelines for the Central Appalachians

2008 ◽  
Vol 25 (1) ◽  
pp. 5-16 ◽  
Author(s):  
Kim C. Steiner ◽  
James C. Finley ◽  
Peter J. Gould ◽  
Songlin Fei ◽  
Marc McDill
Keyword(s):  
Data Collection ◽  
Classification System ◽  
Development Model ◽  
Strong Component ◽  
Oak Regeneration ◽  
Regeneration Potential ◽  
Central Appalachians ◽  
Advance Regeneration ◽  
Stand Conditions ◽  
Stump Sprouts

Abstract This article presents the first explicit guidelines for regenerating oaks in the central Appalachians. The objectives of this paper are (1) to describe the research foundation on which the guidelines are based and (2) to provide users with the instructions, data collection forms, supplementarytables, and decision charts needed to apply the guidelines in the field. The principal research foundation for the guidelines is a set of quantitative models that estimate, in advance of harvest, a stand's potential to regenerate oak stocking from advance regeneration and stump sprouts. Regeneration potential is measured by the predicted stocking by oak species, expressed as a percentage of full (100%) stocking, in the new stand in its third decade (21–30 years) after overstory removal. An understory classification system is used in conjunction with the models to help identifypotential barriers to regeneration development. Model results and other data on current stand conditions are used in the decision charts to identify prescriptions for achieving a strong component of oak regeneration after stand harvest. Overstory removals are recommended when the stand's oak regeneration potential is adequate to meet management goals. Otherwise, prescriptions designed to enhance seedling-origin oak regeneration potential are recommended.

Primary Exploration of the New Assessment Method on Green Building Which Based on the Environment Disturbance and Ecological Compensation

2011 ◽  
Vol 347-353 ◽  
pp. 4097-4103
Author(s):  
You Yin Jing ◽  
Jian Liang Zhang ◽  
He Bai
Keyword(s):  
Green Building ◽  
Assessment Method ◽  
Assessment System ◽  
Ecological Compensation ◽  
Green Architecture ◽  
System A ◽  
Building Assessment ◽  
Assessment Systems ◽  
Current Assessment ◽  
Ecological Building

This paper proposes some suggestions to perfect our current green building assessment system. Green building and ecological building is undoubtedly the trend of construction industry. Green building assessment systems play a directional function for the design, the construction and the use of green architecture. This paper introduces the development of green building assessment system at China and other country firstly. Through the comparison and analysis for some kinds of green building assessment systems, found that that the applicability for buildings and areas and the fairness for ecological environment and surrounding people of current assessment system should be optimized. Finally，proposed that several aspects must be considered, and thus establish the new system-A Green Building Assessment Method Which Based on the Environmental Disturbance and Ecological Compensation.

scholarly journals Wheat Grain Protein Content under Mediterranean Conditions Measured with Chlorophyll Meter

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 374
Author(s):  
Marta Aranguren ◽  
Ander Castellón ◽  
Ana Aizpurua
Keyword(s):  
Protein Content ◽  
Stem Elongation ◽  
Field Trials ◽  
Grain Protein Content ◽  
Grain Protein ◽  
Bread Making ◽  
High Quality ◽  
Chlorophyll Meter ◽  
Growing Seasons ◽  
Different Sources

Adequate N fertilisation is crucial to increase the grain protein content (GPC) values in wheat. The recommended level of GPC needed to achieve high-quality bread-making flour should be higher than 12.5%. However, it is difficult to ensure the GPC values that the crop will achieve because N in grain is derived from two different sources: N remobilized into the grain from N accumulated in the pre-anthesis period, and N absorbed from the soil in the post-anthesis period. This study aimed to (i) evaluate the effect of the application of N on the rate of stem elongation (GS30) when farmyard manures are applied as initial fertilisers on GPC and on the chlorophyll meter (CM) values at mid-anthesis (GS65), (ii) establish a relationship between the CM values at GS65 and GPC, and (iii) determine a minimum CM value at GS65 to obtain GPC values above 12.5%. Three field trials were performed in three consecutive growing seasons, and different N fertilisation doses were applied. Readings using the CM Yara N-TesterTM were taken at GS65. The type of initial fertiliser did not affect the GPC and CM values. Generally, the greater the N application at GS30 is, the higher the GPC and CM values are. CM values can help to estimate GPC values only when yields are below 8000 kg ha−1. Additionally, CM values at GS65 should be higher than 700 to achieve high-quality bread-making flour (12.5%) at such yield levels. These results will allow farmers and cooperatives to make better decisions regarding late-nitrogen fertilisation and wheat sales.

scholarly journals Coastline Management: Review and Countermeasure Proposal

2020 ◽  
Vol 206 ◽  
pp. 03029
Author(s):  
HUO Suxia ◽  
WANG Guogang ◽  
XIU Chun ◽  
ZHANG Tianyu ◽  
CHEN Keke
Keyword(s):  
Assessment System ◽  
Main Function ◽  
Ecological Civilization ◽  
Coordinated Development ◽  
High Quality ◽  
Marine Governance ◽  
Marine Economy ◽  
Double Index ◽  
Strategic Support ◽  
New Situation

The scientific coastline management is of great significance to the development of marine economy, coordinated development of land and marine and construction of ecological civilization. The coastline management in China has experienced two main stages: (i) the stage of basic survey and jurisprudential establishment, and (ii) the stage of perfection under new situation. There are challenges in promoting modern marine governance and marine power, which are characterized by the lack of high-quality management involvement throughout the coastline management process. Accordingly, coastline supervision is not comprehensive, the standardized system still needs to be improved, and the research on the main function of coastline has not been conducted yet. On this basis, the corresponding strategies were put forward from the perspectives of top-level design, main function, the “double-index” assessment system, requisition-compensation balance of natural coastline, with a view to provide strategic support for coastline management in China.

The Edmonton Symptom Assessment System: A narrative review of a standardized symptom assessment tool in head and neck oncology

Oral Oncology ◽  
2021 ◽  
Vol 123 ◽  
pp. 105595
Author(s):  
Christopher W. Noel ◽  
David Forner ◽  
Douglas B. Chepeha ◽  
Elif Baran ◽  
Kelvin K.W. Chan ◽  
...  
Keyword(s):  
Head And Neck ◽  
Assessment Tool ◽  
Symptom Assessment ◽  
Narrative Review ◽  
Assessment System ◽  
Head And Neck Oncology ◽  
Edmonton Symptom Assessment System ◽  
System A

Aftermath

2007 ◽  
Author(s):  
Peter Rowley-Conwy
Keyword(s):  
Stage Theory ◽  
Archaeological Theory ◽  
History Of Archaeology ◽  
Ancient History ◽  
High Quality ◽  
Academic Context ◽  
Anglophone Literature ◽  
Physical Evidence ◽  
System A ◽  
History Of

We have followed the story of the Three Age System a very long way indeed. We saw how it emerged in Copenhagen and Lund, how it was received there, and how Worsaae fought to establish it there. We then saw how it came to Britain, and followed in Worsaae’s footsteps from London to Edinburgh to Dublin and back to London again. In each of the three capitals in which it was considered, accepted or rejected, the academic context was quite different from the others. In London the archaeologists were safe sheltering under the dominant ethnological paradigm, and for some time saw no reason to venture out from beneath it. In Edinburgh the Four Stage Theory and long links with Denmark made the Scandinavian story much easier to swallow rapidly. In Dublin the historical elite was so blinded by the glory of their ancient history that there was no place for the archaeological theory, and it had to be carried into the capital by an originally provincial archaeological movement. Back in London, the safe ethnological chronology was jolted out of alignment by the discovery of human antiquity, and alongside this—and on the back of high-quality archaeological excavation—the Three Age System finally won the day. Some aspects of the story have long been well known. The roles of C. J. Thomsen, of J. J. A. Worsaae, of Daniel Wilson, and of John Lubbock have all received much exposure in discussions of the history of archaeology. But in following this story we have also sometimes looked beneath stones that have seldom if ever previously been lifted in this connection, at least in the Anglophone literature. It has for example rarely been understood that Thomsen’s ‘idea of prehistory’ was not simply forging back into hitherto uncharted chronological territory, but was to begin with leaning on the elaborate ancient historical structure of Peter Frederik Suhm. It was only when Christian Molbech kicked away this structure in the 1830s that the Three Age System had to stand on its own. Fortunately it was rapidly supported by three other chronologies employing physical evidence, and they acted as supports in its very earliest days of independence. When Worsaae hastened ancient history into its grave in the 1840s, the Three Age System was therefore able to stand on its own four feet (archaeology, economy, ecology, and craniology).

A Reliability and Validity of an Instrument to Evaluate the School-Based Assessment System: A Pilot Study

2016 ◽  
Vol 5 (2) ◽  
pp. 148 ◽  
Author(s):  
Nor Hasnida Md Ghazali
Keyword(s):  
Pilot Study ◽  
Secondary School Teachers ◽  
Evaluation Model ◽  
Reliability And Validity ◽  
Product Evaluation ◽  
Assessment System ◽  
Validity And Reliability ◽  
System A ◽  
School Based ◽  
Practical Instrument

A valid, reliable and practical instrument is needed to evaluate the implementation of the school-based assessment (SBA) system. The aim of this study is to develop and assess the validity and reliability of an instrument to measure the perception of teachers towards the SBA implementation in schools. The instrument is developed based on a conceptual framework developed by Daniel Stufflebeam, that is the CIPP (context, input, process and product) Evaluation Model. The instrument in the form of questionnaire is distributed to a sample of 120 primary and secondary school teachers. The response rate is 80 percent. The content validity is assessed by the experts and the construct validity is measured by Exploratory Factor Analysis (EFA). The reliability of the instrument is measured using internal consistence reliability, which is measured by alpha coefficient reliability or Cronbach Alpha. The finding of this pilot study shows that the instrument is valid and reliable. Finally, out of 71 items, 68 items are retained.

scholarly journals Controlling Beech Root and Stump Sprouts Using the Cut-Stump Treatment

2006 ◽  
Vol 23 (3) ◽  
pp. 155-165 ◽  
Author(s):  
Jeffrey D. Kochenderfer ◽  
James N. Kochenderfer ◽  
Gary W. Miller
Keyword(s):  
Radial Distance ◽  
Basal Area ◽  
Fagus Grandifolia ◽  
Complete Control ◽  
Growing Seasons ◽  
Control Root ◽  
Stump Sprouting ◽  
Number Of Stems ◽  
Cut Stump ◽  
Stump Sprouts

Abstract Application costs and efficacy were determined for cut-stump treatments applied to American beech (Fagus grandifolia Ehrh.) to control root and stump sprouts in central West Virginia. Glyphosate as Glypro (53.8%) was applied to the outer 2 in. of beech stumps from trees >6.0-in. dbh within 1 hour after cutting. In addition to treatment plots, individual beech stumps were treated to determine mortality patterns. The treatments were applied in early September 2001 and evaluated 12 months after treatment. A rating system ranging from 1 to 7 (0 to 100% crown affected) based on visual estimates of symptoms was used to evaluate the efficacy of the treatments. Trees with a rating of 5 (75% crown control or greater) were considered controlled. After 12 months, more than 90% of beech root sprouts ≥1-ft tall to 5.9-in. dbh on treated plots were controlled. Complete control of stump sprouting also was achieved. An average of 93 beech stems was controlled around each treated stump. Mortality around treated stumps declined as the radial distance from stumps increased and stump size decreased. Average application cost (chemical and labor) ranged from $39.43 to 62.34 per acre depending on the basal area and number of stems treated. After two growing seasons, the number of beech root sprouts on more than 90% of the treated regeneration plots remained below levels considered as interfering according to guidelines for Allegheny hardwoods. This study demonstrated that herbicide is readily translocated from the surfaces of freshly cut beech stumps via parent root systems to attached live beech stems. The cut-stump method can be applied in areas where beech is the primary species interfering with the establishment and development of desirable regeneration.

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