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Prioritizing woody species for the rehabilitation of arid lands in western Iran based on soil properties and carbon sequestration

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Journal of Arid Land 2020年第4期12卷 640-652页

作者： masoud BAZGIR Reza OMIDIPOUR Mehdi HEYDARI Nasim ZAINALI masoud hamidi Daniel C DEY Department of Water and Soil Engineering Faculty of AgricultureIlam UniversityIlam ***Iran Department of Range and Watershed Management Faculty of Natural Resource and Earth ScienceShahrekord UniversityShahrekord ***Iran Department of Forestry Faculty of AgricultureIlam UniversityIlam ***Iran US Forest Service Northern Research StationColumbiaOM 65211USA

Plants are an important component in many natural ecosystems. They influence soil properties, especially in arid ecosystems. The selection of plant species based on their adaptations to site conditions is essential for rehabilitation of degraded sites and other construction sites such as check-dams. Other factors to be considered in species selection include their effects on soil properties and their abilities to meet other management objectives. The purpose of this study was to assess the effects of native(Populus euphratica Oliv. and Tamarix ramosissima Ledeb.) and introduced(Eucalyptus camaldulensis Dehnh. and Prosopis juliflora(Swartz) DC.) woody species on soil properties and carbon sequestration(CS) in an arid region of Iran. Soil sampling was collected at three soil depths(0–10, 10–20 and 20–30 cm) at the sites located under each woody species canopy and in an open area in 2017. Soil physical-chemical property was analyzed in the laboratory. The presence of a woody species changed soil characteristics and soil CS, compared with the open area. For example, the presence of a woody species caused a decrease in soil bulk density, of which the lowest value was observed under E. camaldulensis(1.38 g/cm^3) compared with the open area(1.59 g/cm^3). Also, all woody species significantly increased the contents of soil organic matter and total nitrogen, and introduced species had more significant effect than native species. The results showed that CS significantly increased under the canopy of all woody species in a decreasing order of P. euphratica(9.08 t/hm^2)>E. camaldulensis(8.37 t/hm^2)>P. juliflora(5.20 t/hm^2)>T. ramosissima(2.93 t/hm^2)>open area(1.33 t/hm^2), thus demonstrating the positive effect of a woody species on CS. Although the plantation of non-native species had some positive effects on soil properties, we recommend increasing species diversity in plantations of native and introduced woody species to provide more diversity for the increased ecosystem

关键词： arid ecosystem carbon sequestration degraded soil restoration reforestation soil management

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Microorganism-derived biological macromolecules for tissue engineering

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Frontiers of Medicine 2022年第3期16卷 358-377页

作者： Naser Amini Peiman Brouki Milan Vahid Hosseinpour Sarmadi Bahareh Derakhshanmehr Ahmad Hivechi Fateme Khodaei masoud hamidi Sara Ashraf Ghazaleh Larijani Alireza Rezapour Cellular and Molecular Research Center Iran University of Medical SciencesTehran ***Iran Institutes of Regenerative Medicine Faculty of Advanced Technologies in MedicineIran University of Medical SciencesTehran ***Iran Department of Tissue Engineering and Regenerative Medicine Faculty of Advanced Technologies in MedicineIran University of Medical SciencesTehran ***Iran Department of Pharmaceutics University of MinnesotaMN 55455USA Burn Research Center Department of Plastic and Reconstructive SurgeryIran University of Medical SciencesTehran ***Iran Department of Medical Biotechnology Faculty of ParamedicineGuilan University of Medical SciencesRasht ***Iran Department of Biology Science and Research BranchIslamic Azad UniversityTehran ***Iran Cellular and Molecular Research Centre Qom University of Medical SciencesQom ***Iran Department of Tissue Engineering and Regenerative Medicine School of MedicineQom University of Medical SciencesQom ***Iran

According to literature,certain microorganism productions mediate biological ***,their beneficial characteristics remain ***,scientists concentrate on obtaining natural materials from live creatures as new sources to produce innovative smart biomaterials for increasing tissue reconstruction in tissue engineering and regenerative *** present review aims to introduce microorganism-derived biological macromolecules,such as pullulan,alginate,dextran,curdlan,and hyaluronic acid,and their available sources for tissue *** evidence indicates that these materials can be used as biological material in scaffolds to enhance regeneration in damaged tissues and contribute to cosmetic and dermatological *** natural-based materials are attractive in pharmaceutical,regenerative medicine,and biomedical *** study provides a detailed overview of natural-based biomaterials,their chemical and physical properties,and new directions for future research and therapeutic applications.

关键词： biological macromolecules regenerative medicine tissue engineering exopolysaccharide carbohydrate

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Numerical Investigation of Fuel Dilution Effects on the Performance of the Conventional and the Highly Preheated and Diluted Air Combustion Furnaces

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Chinese Journal of Chemical Engineering 2009年第5期17卷 711-726页

作者： Kiomars Abbasi Khazaei Ali Asghar hamidi masoud Rahimi Graduate School of the Environment and Energy Science and Research Branch Islamic Azad University Tehran Iran Department of Chemical Engineering Faculty of Engineering Tehran University Tehran Iran Department of Chemical Engineering CFD Research Center Razi University Kermanshah Iran

This numerical study investigates the effects of using a diluted fuel （50% natural gas and 50% N2） in an industrial furnace under several cases of conventional combustion （air with 21% O2 at 300 and 1273 K） and the highly preheated and diluted air （1273 K with 10% O2 and 90% N2） combustion （HPDAC） conditions using an in-house computer program. It was found that by applying a combined diluted fuel and oxidant instead of their uncombined and/or undiluted states, the best condition is obtained for the establishment of HPDAC＇s main unique features. These features are low mean and maximum gas temperature and high radiation/total heat transfer to gas and tubes; as well as more uniformity of theirs distributions which results in decrease in NOx pollutant formation and increase in furnace efficiency or energy saving. Moreover, a variety of chemical flame shape, the process fluid and tubes walls temperatures profiles, the required regenerator efficiency and finally the concentration and velocity patterns have been also qualitatively/quantitatively studied.

关键词： highly preheated and diluted air combustion furnace numerical modeling chemical flame fuel dilution NOx formation energy saving

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