| 水库底泥应用于绿化用土的潜在可行性研究 |
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| 引用本文：韩安龙,张承龙,冯雷雨,潘涛.水库底泥应用于绿化用土的潜在可行性研究[J].上海第二工业大学(中文版),2024,41(3):264-271 |
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| 基金项目:上海城投水务(集团) 有限公司科研项目(KY.YS.22.0002) 资助 |
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| 中文摘要:选用居民饮用水水库中的底泥作为绿化用土, 经检测得知底泥中的有害成分低于《绿化种植土壤》(CJ/T 340—2016)。水库底泥经烘干破碎后过40 目标准筛网, 掺加陶粒和椰糠, 在是否掺入有机肥的因素下设计两组正交实验, 同时以含水率为51% 60% 的湿水库底泥直接掺入作为对照实验, 分别种植小白菜、矮脚黄和五月慢。根据3 种蔬菜的生长发芽时间, 观察记录蔬菜4 d 的发芽数、8 d 蔬菜种子的存活发芽率。实验结果表明水库底泥经烘干破碎预处理后, 掺入有机肥更有利于蔬菜种子发芽, 其中小白菜的生长发芽情况最好, 8 d 平均存活发芽率为85.6%,五月慢次之, 为65.5%。而含水率为51%60% 的湿水库底泥, 混合有机肥, 蔬菜种子的存活发芽率不超过60%。实验证明了蔬菜种子可以在水库底泥中存活, 居民饮用水水库中的底泥可以应用于绿化用土。 |
| 中文关键词:水库底泥 绿化用土 蔬菜 存活发芽率 |
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| Potential Feasibility Study of Applying Reservoir Sediment to Greening Soil |
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| Abstract:The sediment from the residential drinking water reservoir was selected as the soil for greening, and the harmful components in the sediment were tested and known to be lower than the “Planting soil for greening” (CJ/T 340-2016). Reservoir sediment was dried, fragmented and passed through a 40-mesh standard sieve, mixed with ceramsite and coconut coir, and two sets of orthogonal experiments were designed under the factor of whether or not it was mixed with organic fertilizer, while direct mixing of wet reservoir sediment with a moisture content of 51%-60% was used as a control experiment to grow Chinese-cabbage, Short-feet-yellow and Mayslow, respectively. According to the growth and germination time of three kinds of vegetables, observing and recording the germination
number of vegetables for four days, and the survival germination rate of vegetable seeds for eight days. The results of the experiment show that the reservoir sediment pretreated by drying and crushing is more conducive to the germination of vegetable seeds with the admixture of organic fertilizer, in which the growth and germination of Chinese-cabbage is the best, the average survival germination rate at eight days is 85.6%. May-slow followed by, is 65.5%. In contrast, the survival and germination of vegetable seeds in wet reservoir sediment with a water content of 51%-60%, mixed with organic fertilizers, do not exceed 60%. This experiment proves that vegetable seeds can survive in the reservoir sediment, and the sediment from residential drinking water reservoirs can be applied to green soil. |
| keywords:reservoir sediment green soil vegetables survival germination rate |
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