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图 1 示范区域及样品采集点示意图
Figure 1. Planting area and sampling sites map
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图 2 亲水性污泥陶粒的吸水率(a),亲水性污泥陶粒的SEM和EDS(b),亲水性污泥陶粒种植沉水植物前后(c, d)
Figure 2. water sorption of hydrophilic sludge ceramsite(a), SEM and EDS of hydrophilic sludge ceramsite(b), hydrophilic sludge ceramsite before and after planting submerged plants(c, d)
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图 3 种植点沉水植物质量(a),长度(b)和分蘖数(c和d)的变化
Figure 3. Changes in submerged plant quality (a), length (b) and tiller number (c and d) at planting site
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图 4 亲水性污泥陶粒种植沉水植物构建“水下森林”淡水生态系统种植点和对照点示意图(a),种植前(b)后(c)水质情况,2022—2023年对照点(d,f)和种植点(e,g)的水质变化
Figure 4. Construction of ‘underwater forest’ freshwater ecosystem by planting submerged plants with hydrophilic sludge ceramsite schematic diagram of planting sites and control sites (a), water quality before (b) and after (c) planting, water quality changes at control sites (d, f) and planting sites (e, g) from 2022 to 2023
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图 5 亲水性污泥陶粒定殖微生物的Venn图
Figure 5. Venn diagram of colonizing microorganisms in hydrophilic sludge ceramsite
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图 6 亲水性污泥陶粒定殖微生物的物种组成分布柱状图(a)和各物种的ANOVA差异性分析(b-i)(变形菌(b),硝化螺旋菌(c),拟杆菌(d),梭杆菌门(e),厚壁菌(f),粘细菌(g),蛭弧菌(h)和蓝藻(i))
Figure 6. Histogram of species composition distribution of microorganisms colonized in hydrophilic sludge ceramsite(a) and ANOVA difference analysis for each species (b-i)
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图 7 亲水性污泥陶粒重构沉水植物淡水生态系统修复城市黑臭水体示意图
Figure 7. Schematic diagram of reconstruction of submerged plant freshwater ecosystem by hydrophilic sludge ceramsite to restore urban black and odorous water bodies
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