scholarly journals Analysis of Environmental Factors Determining the Adoption of Land Management Practices in Guinea Savanna Agro-Ecological Zone of Kaduna Using Principal Component Analysis (PCA)

2020 ◽  
pp. 18-28
Author(s):  
T. A. Awobona ◽  
J. O. Adedapo ◽  
J. O. Emmanuel ◽  
O. Osunsina ◽  
J. A. Ogunsanwo ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Land Management ◽  
Management Practices ◽  
Management Practice ◽  
Principal Component ◽  
Component Analysis ◽  
Sustainable Land Management ◽  
Farm Productivity ◽  
Positive Effects ◽  
Land Management Practice

This study analyzed the various determinants of land management practices in Chikun LGA of Kaduna State and determined most sustainable practice(s), with the specific focus on: Socio-economic characteristics of farmers; types of land management practices in relation to the determinant factors; effects of land management practices on the farm productivity; determine the most sustainable land management practice in the study area. A purposive sampling technique was adopted in collecting data from three hundred and eighty (380) rural farmers with structured questionnaires administered in Buruku, Chikun Local Government area of Kaduna State, Nigeria. Five land management practices showed positive effects on the farm productivity as compared to the mean of 3 points; these were cover crop, crop rotation, irrigation, organic manure and fertilizer application. Two land management practices as perceived to have good effects on farm productivity of respondents were agro-forestry and bush fallow as shown in the component one of the result of Principal Component Analysis (PCA). It was concluded that the farming population was ageing and was adversely affected the choice of best practices due to lack of education and knowledge to adopt the best land management practice. Sustainable land management practices has the potential to reverse the trend of food scarcity and environmental disasters, help to improve local livelihoods, restore natural ecosystems and also contribute significantly to climate change adaptation and mitigation. There is clear evidence that the productivity of soils in Buruku Village will continue to decline if strategic measures are not put in place to manage soil fertility in different soil units to support agricultural land.

Land Use - Terrain Correlations in the Piedmont Tract of Eastern India

2019 ◽  
pp. 1026-1064
Author(s):  
Ashis Sarkar ◽  
Priyank Pravin Patel
Keyword(s):  
Principal Component Analysis ◽  
Land Use ◽  
Land Management ◽  
Management Practices ◽  
Principal Component ◽  
Land Use Land Cover ◽  
Terrain Attributes ◽  
Gis Environment ◽  
Basin Area ◽  
Insight Into

The Dulung River flows across West Bengal and Jharkhand in India. The geographical variables present within the basin area are categorised into groups like Physiographic, Morphometric and Land Use-Land Cover (LULC) attributes. These facets are mapped and overlain in a GIS environment and correlations drawn between them. Factor Scores obtained through Principal Component Analysis are further compared and correlated. The different variables are fused to obtain a comprehensive grouping of the above three facets that is reflective of the overall terrain attributes and its overlying LULC classes. Through this, within the Dulung River Basin, three broad Physiographic-Soil-Land Use Units (PSLUs) are identified, which comprise of the structural ridges and residual hills, piedmont plains and floodplains. For further insight into existing LULC-landform relations, select villages across the basin landscape are examined in detail. The relations derived help in suggesting possible land management practices in this region.

scholarly journals Assessing organic potato cropping systems at the end of the first cycle of four-year rotations using principal component analysis

2008 ◽  
Vol 88 (4) ◽  
pp. 543-552 ◽  
Author(s):  
K. Liu ◽  
A M Hammermeister ◽  
D G Patriquin ◽  
R C Martin
Keyword(s):  
Principal Component Analysis ◽  
Management Practice ◽  
Cropping Systems ◽  
Soil Amendments ◽  
Cropping System ◽  
Principal Component ◽  
Component Analysis ◽  
High Background ◽  
Soil Variables ◽  
Organic Potato

A single or a few variables may not be sufficient to evaluate management practice effects in a complicated cropping system, so six plant and 13 soil variables were integrated using principal component analysis (PCA) to examine nine 4-yr organic potato rotations. The rotations were combinations of three forage levels (0, 1, and 2 yr of forages) with three soil amendments (monogastric compost, ruminant compost, and alfalfa meal). Quantities of amendments were estimated by soil test recommendations and amendment nutrient availabilities. In the 4th potato year, one half of each original plot was not amended ("the 4th year unamended plots"), while the other half received soil amendments ("4th year amended plots"). The first three principal components explained 67 and 63% of the overall variation for the 4th-yr amended and unamended plots, respectively. PCA ordination plots indicated that, overall, the type of soil amendments had larger effects on soil and plant variables, but forage frequencies were influential for the amendments showing weaker effects. PCA loading plots indicated that plant nutrient uptake and potato total tuber weight would be the best single variables for characterizing the current cropping systems. Plant variables, except for potato petiole nitrate, were closely displayed, but they were not strongly correlated with soil variables, which may reflect the high background fertility of this site. Applications of soil amendments in the 4th yr affected the relationships among variables, most notably the strength of relationships between soil pH and soil N variables. The results suggest that PCA provides an effective way to compare complex cropping systems, especially in situations with high site heterogeneity. Key words: Principal component analysis, soil amendment, livestock system, forage, potato, organic crop rotation

Land Use - Terrain Correlations in the Piedmont Tract of Eastern India

2017 ◽  
pp. 147-192 ◽  
Author(s):  
Ashis Sarkar ◽  
Priyank Pravin Patel
Keyword(s):  
Principal Component Analysis ◽  
Land Use ◽  
Land Management ◽  
Management Practices ◽  
Principal Component ◽  
Land Use Land Cover ◽  
Terrain Attributes ◽  
Gis Environment ◽  
Basin Area ◽  
Insight Into

The Dulung River flows across West Bengal and Jharkhand in India. The geographical variables present within the basin area are categorised into groups like Physiographic, Morphometric and Land Use-Land Cover (LULC) attributes. These facets are mapped and overlain in a GIS environment and correlations drawn between them. Factor Scores obtained through Principal Component Analysis are further compared and correlated. The different variables are fused to obtain a comprehensive grouping of the above three facets that is reflective of the overall terrain attributes and its overlying LULC classes. Through this, within the Dulung River Basin, three broad Physiographic-Soil-Land Use Units (PSLUs) are identified, which comprise of the structural ridges and residual hills, piedmont plains and floodplains. For further insight into existing LULC-landform relations, select villages across the basin landscape are examined in detail. The relations derived help in suggesting possible land management practices in this region.

Factors influencing service quality

2019 ◽  
Vol 37 (2) ◽  
pp. 215-228 ◽  
Author(s):  
Samson Oluseun Ojekalu ◽  
Olatoye Ojo ◽  
Timothy Tunde Oladokun ◽  
Sumoila Aremu Olabisi
Keyword(s):  
Principal Component Analysis ◽  
Service Quality ◽  
Management Practice ◽  
Principal Component ◽  
Component Analysis ◽  
Property Management ◽  
Content Type ◽  
Factors Influencing ◽  
Five Axes

Purpose The purpose of this paper is to examine factors influencing service quality of the property managers to the occupiers of shopping complexes in Ibadan, Nigeria. This was with a view to providing information that could enhance property management practice. Design/methodology/approach Primary data were used for the study. The study area was stratified into five axes using major roads where shopping complexes were highly concentrated. Systematic sampling technique was used to select 139 out of 276 shopping complexes in the study area. The data obtained were analyzed using mean ranking and principal component analysis. Findings The study found that ineffective employee’s compensation, high employee turnover, lack of continuous improvement culture, inadequate use of employee empowerment, inadequate staff, lack of teamwork, inability to see tenants as customer, lack of motivation, education and training of the property managers and poor planning among others were the most significant factors influencing service quality of the property managers using mean ranking. The study further found that professional and empowerment factor, teamwork and motivation factor, customer related factor, work volume and operation factor, skills and job satisfaction factor, top-management commitment factor, experience and communication factor as well as financial factor were the factors influencing service quality of the property managers using principal component analysis. Practical implications This study will aid the property managers of shopping complexes in identifying areas which needed to be improved upon in order to provide quality service to occupiers thereby enhancing tenant retention and loyalty. Originality/value Previous studies on factors influencing service quality have been focusing on hospitality, healthcare, real estate agency and library industries. This study is one of the very few studies that examined factors influencing service quality of property managers of shopping complex. Also, the paper underlines the need for property managers of shopping complexes to give required attention to factors influencing service quality for enhanced property management practice.

A German version of the Intermittent Claudication Questionnaire (ICQ): cultural adaptation and validation

VASA ◽  
2012 ◽  
Vol 41 (5) ◽  
pp. 333-342 ◽  
Author(s):  
Kirchberger ◽  
Finger ◽  
Müller-Bühl
Keyword(s):  
Principal Component Analysis ◽  
Intermittent Claudication ◽  
Completion Time ◽  
Short Form ◽  
Principal Component ◽  
Component Analysis ◽  
German Version ◽  
Average Completion Time ◽  
Sf 36 ◽  
Related Quality

Background: The Intermittent Claudication Questionnaire (ICQ) is a short questionnaire for the assessment of health-related quality of life (HRQOL) in patients with intermittent claudication (IC). The objective of this study was to translate the ICQ into German and to investigate the psychometric properties of the German ICQ version in patients with IC. Patients and methods: The original English version was translated using a forward-backward method. The resulting German version was reviewed by the author of the original version and an experienced clinician. Finally, it was tested for clarity with 5 German patients with IC. A sample of 81 patients were administered the German ICQ. The sample consisted of 58.0 % male patients with a median age of 71 years and a median IC duration of 36 months. Test of feasibility included completeness of questionnaires, completion time, and ratings of clarity, length and relevance. Reliability was assessed through a retest in 13 patients at 14 days, and analysis of Cronbach’s alpha for internal consistency. Construct validity was investigated using principal component analysis. Concurrent validity was assessed by correlating the ICQ scores with the Short Form 36 Health Survey (SF-36) as well as clinical measures. Results: The ICQ was completely filled in by 73 subjects (90.1 %) with an average completion time of 6.3 minutes. Cronbach’s alpha coefficient reached 0.75. Intra-class correlation for test-retest reliability was r = 0.88. Principal component analysis resulted in a 3 factor solution. The first factor explained 51.5 of the total variation and all items had loadings of at least 0.65 on it. The ICQ was significantly associated with the SF-36 and treadmill-walking distances whereas no association was found for resting ABPI. Conclusions: The German version of the ICQ demonstrated good feasibility, satisfactory reliability and good validity. Responsiveness should be investigated in further validation studies.

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