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Relations between soil heterogeneity and common reed(Phragmites australis *** Steud.) colonization in the Keriya River Basin,Xinjiang of China

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Journal of Arid Land 2014年第6期6卷 753-761页

作者： Lu GONG ChangJun LI Tashpolat TIYIP College of Resources and Environment Science Xinjiang University Key Laboratory of Oasis Ecology Ministry of Education Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Cele National Station of Observation & Research for Desert-Grassland Ecosystem in Xinjiang

How common reed （Phragmites australis Trin. ex Steud.） colonization correlates to soil heterogeneity and environmental determinants remains unclear in arid areas. We conducted a field investigation and soil sampling in 100 plots along Keriya River Basin to uncover the relationship between common reed and heterogeneous soils. reed colonization variables and its soil properties were measured and recorded for the analysis of their relationship using Pearson correlation and redundancy analysis methods. The comparison results of common reed characteris- tics among 100 plots showed that common reeds performed strong tolerance and ecophysiological plasticity to edaphic stresses. common reed colonization was tightly connected to soil heterogeneity according to the correla- tion analysis between its colonization characteristics and soil properties. common reed colonization got feedbacks on soil properties as well, including the increase of soil organic matter and the alleviation of salt uplifting. The main limiting environmental determinant of common reed colonization was soil salt, followed by pH and soil water content.

关键词： soil heterogeneity plant colonization common reed plasticity determinant

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Performance of common reed(Phragmites australis)in a Constructed Wetland for Greywater Treatment in Akure,Nigeria

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NASS Journal of Agricultural Sciences 2022年第1期4卷 15-20页

作者： Alao,F. Alatise,M.O. Olanrewaju O.O. Oloruntade,A.J. Department of Agricultural and Environmental Engineering Federal University of TechnologyAkureNigeria Department of Civil Engineering Olusegun Agagu University of Science and TechnologyOkitipupaNigeria

Shortage of freshwater is becoming a growing problem in both dry and semi-dry regions of the world,hence the need to make use of other source of water for agricultural *** study was conducted to examine the performance of common reed in a constructed wetland for greywater treatment in Akure,*** greywater was collected from Jadesola Hostel,Federal University of Technology,Akure,and pretreated through a combination of gravel of diameterscommon reed planted on it for complete *** raw and treated greywater were analyzed for Biochemical Oxygen Demand(BOD),Chemical Oxygen Demand(COD),Total Dissolved Solid(TDS),and heavy *** was discovered that CW planted with common reed was effective in the treatment of greywater with reduction in BOD by 91.4%,COD by 91.5%and TDS by 38.7%.CW had appreciable removal effect on heavy metals with reduction in:manganese(Mn)from 0.100 ppm to 0.012 ppm,iron(Fe)from 0.014 ppm to 0.002 ppm,lead(Pb)from 0.05 ppm to 0.001 ppm and zinc(Zn)from 0.154 ppm to 0.148 ***,the use of common reed in constructed wetland for greywater treatment is recommended for farmers involved in irrigation with greywater,especially during dry seasons,and most importantly under the rising global water scarcity due to climate change.

关键词： Biochemical oxygen demand common reed Constructed wetland Greywater Heavy metals Salinity

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Cutting of Phragmites australis as a lake restoration technique： Productivity calculation and nutrient removal in Wuliangsuhai Lake, northern China

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Research in Cold and Arid Regions 2016年第5期8卷 400-410页

作者： Jan Felix Kobbing Niels Thevs Stefan Zerbe Klasmann-Deilmann Company Georg-Klasmann-Str. 2-19 49744 Geeste Germany World Agroforestry Center Central Asia Branch Office University of Central Asia 138 Toktogol Street 720001 Bishkek Kyrgyzstan Faculty of Science and Technology Free University of Bozen-Bolzano Piazza Università 5 39100 Bolzano Italy

reed is one of the most frequent and dominant species in wetlands all over the world, with common reed （Phragmites australis （Cav.） Trin. ex Steud.） as the most widely distributed species. In many wetlands, P. australis plays a highly ambivalent role. On the one hand, in many wetlands it purifies wastewater, provides habitat for numerous species, and is a potentially valuable raw material, while on the other hand it is an invasive species which expands aggressively, prevents fishing, blocks ditches and waterways, and builds monospecies stands. This paper uses the eutrophic reed-swamp of Wuliangsuhai Lake in Inner Mongolia, northern China, as a case to present the multiple benefits of regular reed cutting. The reed area and aboveground biomass production are calculated based on field data. Combined with data about water and reed nutrient content, the impact of reed cutting on the lake nutrient budget （N and P） is investigated. Currently, at this lake around 100,000 tons of reed are harvested in winter annually, removing 16% and 8% of the total nitrogen and phosphorus influx, respectively. Harvesting all available winter reed could increase the nutrient removal rates to 48% and 24%, respectively. We also consider the effects of summer harvesting, in which reed biomass removal could overcompensate for the nutrient influx but could potentially reduce reed regrowth.

关键词： common reed ecosystem restoration water purification reed utilization wetland ecosystem dryland

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