Soil Quality Assessment Strategies for Evaluating Soil Degradation in Northern Ethiopia
المؤلف
Tesfahunegn, Gebreyesus Brhane
المصدر
Applied and Environmental Soil Science
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-02-04
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
Soil quality (SQ) degradation continues to challenge sustainable development throughout the world.
One reason is that degradation indicators such as soil quality index (SQI) are neither well documented nor used to evaluate current land use and soil management systems (LUSMS).
The objective was to assess and identify an effective SQ indicator dataset from among 25 soil measurements, appropriate scoring functions for each indicator and an efficient SQ indexing method to evaluate soil degradation across the LUSMS in the Mai-Negus catchment of northern Ethiopia.
Eight LUSMS selected for soil sampling and analysis included (i) natural forest (LS1), (ii) plantation of protected area, (iii) grazed land, (iv) teff (Eragrostis tef)-faba bean (Vicia faba) rotation, (v) teff-wheat (Triticum vulgare)/barley (Hordeum vulgare) rotation, (vi) teff monocropping, (vii) maize (Zea mays) monocropping, and (viii) uncultivated marginal land (LS8).
Four principal components explained almost 88% of the variability among the LUSMS.
LS1 had the highest mean SQI (0.931) using the scoring functions and principal component analysis (PCA) dataset selection, while the lowest SQI (0.458) was measured for LS8.
Mean SQI values for LS1 and LS8 using expert opinion dataset selection method were 0.874 and 0.406, respectively.
Finally, a sensitivity analysis (S) used to compare PCA and expert opinion dataset selection procedures for various scoring functions ranged from 1.70 for unscreened-SQI to 2.63 for PCA-SQI.
Therefore, this study concludes that a PCA-based SQI would be the best way to distinguish among LUSMS since it appears more sensitive to disturbances and management practices and could thus help prevent further SQ degradation.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Tesfahunegn, Gebreyesus Brhane. 2014. Soil Quality Assessment Strategies for Evaluating Soil Degradation in Northern Ethiopia. Applied and Environmental Soil Science،Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-487868
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Tesfahunegn, Gebreyesus Brhane. Soil Quality Assessment Strategies for Evaluating Soil Degradation in Northern Ethiopia. Applied and Environmental Soil Science No. 2014 (2014), pp.1-14.
https://search.emarefa.net/detail/BIM-487868
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Tesfahunegn, Gebreyesus Brhane. Soil Quality Assessment Strategies for Evaluating Soil Degradation in Northern Ethiopia. Applied and Environmental Soil Science. 2014. Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-487868
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-487868
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر