Volume 23, Issue 4 (winter 2020)                   jwss 2020, 23(4): 141-154 | Back to browse issues page

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Owliaie H, Mehmandoost F, Adhami E, Naghiha R. Changes in Biological, Chemical and Soil Fertility Characteristics as a Result of Land Use Change (A Case Study: Mokhtar Region of Yasouj). jwss 2020; 23 (4) :141-154
URL: http://jstnar.iut.ac.ir/article-1-3802-en.html
1. Department of Soil Science, Faculty of Agriculture, Yasouj University, Yasouj, Iran. , owliaie@gmail.com
Abstract:   (5304 Views)
The conversion of forests to agricultural lands generally has damaging effects on soil qualitative indices. This study was conducted to investigate the effects of land use change on the physico- chemical and biological characteristics of the soils of Mokhtar Plain, Yasouj Region. Five soil samples (0- 30 cm) were taken from three land uses of dense forest, degraded forest, and dry farming. The physical, chemical and biological analyses were carried out in a completely randomized design. The results showed that by following the change in the forest land use to dry farming, the EC (56%), organic matter (67%), total nitrogen (71%), exchangeable potassium (48%), Basal respiration (42%), exhaled respiration (63%), fungi community (23%), acid phosphatase (59%), and alkaline phosphatase (79%) were decreased in the dry farming land use. However, the bacterial community (20%) and pH (5%) were increased in the dry farming land use and the amount of available phosphorus did not show any significant difference, as compared to the dense forest. In general, it can be concluded that by following forest degradation and change in land use, soil organic matter and its related indices, especially biological ones, are more affected. So, in order to maintain soil quality, appropriate management practices such as managed land use change, avoidance of tree cutting, especially on steep slopes, preventing of overgrazing, and addition of organic matter should be carried out in dry farming land use.
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Type of Study: Research | Subject: Ggeneral
Received: 2018/11/21 | Accepted: 2019/04/6 | Published: 2020/02/29

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