تقييم استجابات النظام البيئي للتغيرات في استخدام الأراضي حسب مؤشر جودة التربة
Date
2018-07-14
Authors
اسراء سليمان عبدالله العصا
Israa Sulieman Abdullah Alassa
Journal Title
Journal ISSN
Volume Title
Publisher
AL-Quds University
جامعة القدس
جامعة القدس
Abstract
The change in land use from natural land regarding land used by humans in various areas is
critical to the global ecosystem, which in turn affects soil conditions. In order to improve our
understanding of land use, our study focuses on soil health assessment and it depends on
long-term environmental research area near Wadi Nar in Al-Ubeidiya to assess the ecosystem
response to land use, including tillage practice. The aim of this study is to evaluate of the
effects of tillage on soil health for each system (natural, pastoral A, pastoral B) by using soil
quality index. Three systems are studied: natural (no tillage), tillage with the removal of
plants (pastoral A) and tillage without the removal of plants (pastoral B). In order to assess
soil health, the chemical, biological and physical parameters of the soil must be analyzed.
During our study, soil quality is assessed using the method of registration in each index using
the SQI soil quality index, which determines the level of soil degradation, by collecting data
on selected chemical, physical and biological indicators for each soil. Numerous statistical
calculations were performed, including the PCA analysis, which shows the correlation
between transactions in all systems at a given depth. Soil health assessment was used in detail
for each laboratory of chemical, physical and biological indicators based on Cornell's book.
The result of soil quality index for natural land is 16, where a number of indicators have been
adopted to determine the quality of the soil. The pastoral system A achieves 15.4 while
pastoral B has the highest value of 16.3. The result shows that according to the soil quality
index, management types including tillage and plant retention, can improve soil quality. The
higher the values are, the better the soil quality is. The best soil quality index in our study is
39 and the lowest value is 10 based on the equation used to calculate the soil quality index.
Description
Keywords
الدراسات البيئية , Environmental Studies