Volume 26, Issue 4 (Winiter 2023)                   jwss 2023, 26(4): 299-318 | Back to browse issues page

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Moradian Paik N, Jafari S. The Effect of Land Use Change on Soil Quality Factors (Case Study: Khuzestan Province). jwss 2023; 26 (4) :299-318
URL: http://jstnar.iut.ac.ir/article-1-4236-en.html
Agricultural Sciences and Natural Resources University of Khuzestan , siroosjafari@asnrukh.ac.ir
Abstract:   (1127 Views)
Changes in land quality factors were investigated according to the change in land use of two conventional cropping systems in Khuzestan (Dimcheh region, periodic cultivation system, sugarcane, forest, and deforesting in Zaras region). The results showed that by the change of forest land use, organic carbon from 0.93 to 0.55%, cation exchange capacity (CEC) from 19.6 to 13.3 cmol/kg, C/N from 7.4 to 3.8%, the mean weight diameter of aggregate (MWD) from 1.7 to 1.3%, and microbial respiration from 0.11 to 0.06 mg of CO2 /gr of soil per day decreased and in contrast, the dispersible clay from 4.6 to 19.3% increased. PCA analysis for the parameters showed that five factors justified more than 90% of the variance in the values of FC, PWP, AW, and AF. In the Dimcheh region, the average volumetric moisture content of FC from 31.3% to 27.3%, available water from 12.9% to 9.8%, dispersible clay from 56.1% to 12.3%, and bulk density reduced from 1.6 to 1.4%, organic carbon from 0.45 to 0.78%, C/N from 6.3 to 10.0%, microbial respiration from 0.01 to 0.04 mg of CO2 /gr soil per day and MWD of aggregates increased from 0.77 to 1.3 mm. Five factors including FC, AW, BD, DC, and OM explained more than 90% of the variance.
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Type of Study: Research | Subject: Ggeneral
Received: 2021/12/18 | Accepted: 2022/07/31 | Published: 2023/03/1

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