Maintenance of urban organic wastes on ecological function of urban green-belt soils
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摘要: 在阐明城市绿地土壤具有提供植物生长载体、维护城市物质和能量循环、涵养城市水源等生态功能的基础上,总结了国内外城市绿地土壤普遍存在压实严重、通气性差、营养贫瘠和污染严重等现状。并根据城市绿地土壤生态功能的维护可与有机废弃物循环利用相结合的原理,介绍了城市有机废弃物(包括城市污泥、矿化垃圾和绿化植物废弃物)有效利用能促进植物生长、改善土壤和提高雨水渗透能力等重要作用。最后,结合中国实际,提出应从加强政策扶持、制定技术指南和加强协调管理等3个方面,促进城市有机废弃物的有效利用。参49Abstract: On the basis of generalizing the ecological functions of urban green-belt soils,which consist of providing the medium of plant growth,maintaining the cycle of the matter and energy,and retaining water,the status in urban green-belt soils of domestic and abroad is summarized in this paper: severe soil compaction,low porosity,poor nutrition and heavy contamination. According to the theory of maintaining ecological functions of urban green-belt soils by utilizing organic wastes to local condition,the significant effects of organic wastes,such as increasing nutrition,abating contamination and retaining water,were introduced. Finally,in accordance with the conditions in China,some suggestions about the policy,technique,and management of organic matter utilization were put forward.[Ch,49 ref.]
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Key words:
- urban green-belt soil /
- ecological function /
- sludge /
- mineralized waste /
- green waste /
- review
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2010.02.022
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