| 纪妍，位蓓蕾，杨洁，林杉，张瑞娅，胡振琪.草炭对露天矿表土替代材料改良效果初报[J].广东农业科学,2013,40(3):139-141 |
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草炭对露天矿表土替代材料改良效果初报 |
| Preliminary study on the improvement of topsoil alternatives by peat in a surface coal mine |
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| DOI： |
| 中文关键词: 露天矿复垦 表土替代材料 草炭 |
| 英文关键词: surface mined land reclamation topsoil alternatives peat |
| 基金项目:中央高校基本科研业务费专项资金项目(2010YD03) |
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| 摘要点击次数: 1586 |
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| 中文摘要: |
| 利用草炭作为露天矿排土场表土的替代材料的改良剂，通过对苗期紫花苜蓿生理性能的响应研究草炭的改良效果。以紫花苜蓿为供试作物，采用矿区的深层土作为表土替代材料进行盆栽试验。采用单因素随机试验，草炭按照0、10、30、50 g/kg 的干土进行配比，同时以当地的表土作为对照，测定了苗期紫花苜蓿的生长指标和生理指标。结果表明：草炭对苗期紫花苜蓿的叶面积、株高、根长、生物量、叶绿素、超氧化物歧化酶（SOD）、过氧化物酶（POD）、过氧化氢酶（CAT）、可溶性蛋白和细胞膜透性等指标均有显著影响，当草炭添加量为50 g/kg 时，草炭对提高苗期紫花苜蓿的生理和抗逆性能最为明显，对表土替代材料的改良效果最佳。 |
| 英文摘要: |
| This paper conducted study on the amendment of selected topsoil alternatives from the overburden in a surface coal mine，
and the improvement effect according to the response of physiological capability at alfalfa seedling stage was taken as the standard for evaluating the improved topsoil alternatives by peat. This paper took alfalfa as selected crop and used the deep soil as topsoil alternatives in a surface coal mine for pot experiment. This experiment adopted single-factor completely randomized experiment. There were four treatments for the soil improvement by peat 0, 10, 30, 50 g/kg soil. At the same time, original topsoil was taken as a control treatment. The growth and physiological indexes of alfalfa at its seedling stage were analyzed. The results showed that the peat had obvious influence on the indexes of leaf area, plant height, root length, biomass, content of chlorophyll, SOD activity, POD activity, CAT activity, soluble protein, cell membrane permeability and so on at alfalfa seedling stage. When the addition of peat for the topsoil alternatives was 50 g/kg, it could promote growth performance and stress resistance of alfalfa effectively at seedling stage, which showed that the soil improvement effect was good. |
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