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:: Volume 7, Issue 15 (12-2019) ::
PEC 2019, 7(15): 319-332 Back to browse issues page
The impact of forest degradation and land use change on some soil biological indices (case study: Persian oak (Quercus brantii Lindl) forests in Fars province)
Mehrdad Zarafshar * , Mohammad Matinizadeh2 , Mohammad Javad Rousta3 , Seyed Kazem Bordbar3 , Yahya Kooch4 , Mohammadreza Negahdarsaber3 , Alireza Abbasi3 , Kokab Enayati3
Natural Resources Department, Fars Agricultural and Natural Resources Research and Education Center, AREEO, Shiraz, Fars, Iran, Shiraz , M.zarafshar@areeo.ac.ir
2- Tehran
3- Shiraz
4- Mazandran, Noor
Abstract:   (4357 Views)
To understand the effects of forest degradation and their conversion to farmlands, the present study was conducted with an emphasis on some soil biological indices. In this regard, two different land use (i.e. an oak natural stand and a farm next to the forest and under cultivation since 20 years ago) were surveyed. Within the each land use, three sampling plots (10 m×10 m areas) were randomly set and the soils were taken form 0-10 cm depth. In the laboratory, some biological parameters such as basal respiration, substrate induced respiration, microbial biomass carbon and microbial biomass nitrogen, metabolic quotient, carbon availability index, Cmic/Corg, urease, alkaline and acid phosphatase and dehydrogenase enzymes were measured. The data were statistically analyzed by independent sample t-test. The results indicated that whole of the microbial parameters in the natural forest were 2-3 times more than those in farmland. Although value of Cmic/Corg in the forest site was higher around 10% than the farmland, the values of metabolic quotient, carbon availability index were the same for both studied land uses. On the other hand, activity of alkaline phosphatase, due to phosphate fertilizers, was higher in the alfalfa cultivated farmland. According to the findings, protection of the natural oak ecosystems can maintain soil quality.
Keywords: Soil quality, Natural forest, Zagros, Alkaline phosphatase enzyme, Microbial respiration, Microbial biomass.
Full-Text [PDF 301 kb]   (738 Downloads)    
Type of Study: Research | Subject: Special
Received: 2019/05/21 | Accepted: 2019/09/21 | Published: 2020/03/17
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Zarafshar M, Matinizadeh M, Rousta M J, Bordbar S K, Kooch Y, Negahdarsaber M, et al . The impact of forest degradation and land use change on some soil biological indices (case study: Persian oak (Quercus brantii Lindl) forests in Fars province). PEC 2019; 7 (15) :319-332
URL: http://pec.gonbad.ac.ir/article-1-583-en.html


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Volume 7, Issue 15 (12-2019) Back to browse issues page
مجله حفاظت زیست بوم گیاهان Journal of Plant Ecosystem Conservation
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