宁波城区绿化种植土改良与替代效果  

Improvement and Substitution Effects of Park Planting Soil in Ningbo Urban Area

作　　者：汪峰 张挺 余硕琦 李文波 朱诗君 金树权 WANG Feng;ZHANG Ting;YU Shuoqi;LI Wenbo;ZHU Shijun;JIN Shuquan(Ningbo Academy of Agricultural Sciences,Ningbo 315040,Zhejiang,China;Ningbo Key Laboratory of Testing and Control for Characteristic Agro-Product Quality and Safety,Ningbo 315040,Zhejiang,China;Ningbo Longyuan Garden Engineering Co.,Ltd.,Ningbo 315046,Zhejiang,China;Ningbo Yinzhou District Garden Greening Center,Ningbo 315192,Zhejiang,China;Ningbo Municipal Engineering Construction Group Co.,Ltd.,Ningbo 315012,Zhejiang,China)

机构地区：[1]宁波市农业科学研究院,浙江宁波315040 [2]宁波市特色农产品质量安全检测与控制重点实验室,浙江宁波315040 [3]宁波隆园园林工程有限公司,浙江宁波315046 [4]宁波市鄞州区园林绿化中心,浙江宁波315192 [5]宁波市政工程建设集团股份有限公司,浙江宁波315012

出　　处：《农学学报》2024年第6期24-30,共7页Journal of Agriculture

基　　金：宁波市公益类科技计划项目“园林废弃物有机营养土产品研制开发技术研究”(2022S105);宁波市公益类科技计划项目“滨海农田地力提升和全耕层培肥技术研究与示范”(2021S018)。

摘　　要：为获取宁波城区公园淤泥质土壤低本高效的改良技术解决方案,利用城区公园设置分层改良小区试验,探明不同改良和替代方式对表层土(0~30 cm)和基层土(30~100 cm)理化性质的影响。结果表明:表层土用干化建筑渣土替代或利用园林废弃物堆肥混合改良效果最佳,土壤理化指标(除pH外)在18~24个月内逐渐趋于稳定,且满足《绿化种植土壤》标准要求;园林废弃物堆肥改良基层土效果显著,其添加比例越高,土壤物理结构和肥力水平越好,土壤和园林废弃物堆肥体积比在6:1~6:2之间均能满足改良要求,随着时间增加,不同处理下土壤pH、有机质、全氮等逐渐趋同,土壤的容重和pH不断提高,但2年时间内改良效果能够得到保证。因此,在宁波城区可以利用园林废弃物堆肥改良建筑渣土用于绿化种植土,干化建筑渣土替代黄泥土作为表层种植土,实现废弃物资源利用。To obtain low-cost and efficient improvement technologies for mucky clay soil in Ningbo urban parks,the plot experiment was conducted and the effects of different improvement and alternative methods on the physicochemical properties of topsoil(0-30 cm)and subsoil(30-100 cm)were investigated.The result showed that the replacement with dried construction residue(DCR)or the addition of landscaping waste compost(LWC)were the optimal improvement methods for topsoil.During which,soil physicochemical properties(except pH)gradually stabilized in 18-24 months,and met the requirements of the Standard of Green Planting Soil.For subsoil,the addition of LWC had a significant effect on improving soil properties.The higher the addition amount of LWC,the better the soil physical structure and fertility.For the need of improvement,the volume ratio of soil and LWC should be 6:1-6:2.With the increase of time,soil pH,organic matter and total nitrogen gradually converged under different treatments,and the soil bulk density and pH continuously increased.However,the improvement effect can be guaranteed within two years.It was concluded that DCR mixed with LWC could be used for park planting soil in Ningbo urban area,and DCR could replace yellow soil as top planting soil to realize the resource utilization of waste.

关 键 词：绿化种植土 园林废弃物 堆肥 土壤改良 

分 类 号：S158[农业科学—土壤学]