摘要
以成都市双流区环城生态区复垦地为研究对象,基于复垦耕地土壤理化性状,分析复垦地存在的主要障碍因素,并开展复垦地地力提升与高效种植模式的路径研究,为成都平原复垦地耕地质量提升及高效种植模式提供参考。结果表明:研究区土壤呈微碱性,土壤有机质、全氮、碱解氮含量均处于较缺乏水平。有效磷和速效钾含量处于较缺乏至中等水平。研究区土壤重金属含量均低于农用地土壤污染风险筛选值,处于未污染状态。针对研究区复垦地存在的砾石含量高、土层浅薄、养分贫瘠、有机质含量低、季节性干旱等土壤障碍问题,对成都市复垦地地力提升与高效种植模式路径进行了分析,采取去粗去杂、耕层构建、增施有机肥、绿肥轮作、增施调理剂等土壤消障与改良培肥措施,并探讨了成都市复垦地高效种植模式。
The study focused on the reclaimed land in the urban ecological zone of Shuangliu District,Chengdu City.Based on the physical and chemical properties of reclaimed farmland soil,we analyzed the main obstacles that exist in the reclaimed land,and proposed effective methods on improving the fertility of reclaimed soil and efficient planting models,so as to provide reference for improving the soil quality and efficient planting models of reclaimed land in Chengdu Plain.The results showed that the soil in this area was slightly alkaline,and the contents of organic matter,total nitrogen,and alkali-hydrolyzable nitrogen in the soil were at a deficiency level.The contents of available phosphorus and available potassium were at a relatively low to moderate level.In response to soil obstacles in the reclaimed land of this area,such as high gravel contents,shallow soil layer,poor nutrient contents,low organic matter contents,and drought,an analysis was conducted on the improvement of soil fertility and efficient planting models in Chengdu reclaimed land,adopting measures such as removing coarse and impurities,constructing arable layer,increasing organic fertilizer,rotating green manure,and increasing application of soil conditioners to eliminate soil obstacles and improve soil fertility.Finally,the efficient planting models of Chengdu reclaimed land was analyzed.
作者
郑盛华
徐凯
周进
陈红琳
马明坤
杨泽鹏
敖玉琴
刘定辉
ZHENG Shenghua;XU Kai;ZHOU Jin;CHEN Honglin;MA Mingkun;YANG Zepeng;AO Yuqin;LIU Dinghui(Institute of Agricultural Resources and Environment,Sichuan Academy of Agricultural Sciences,Key Laboratory of Agricultural Environment in Southwest Mountain Areas of Ministry of Agriculture and Rural Affairs,Chengdu 610066,Sichuan;Chengdu Tianfu Greenway Ecological Agriculture Technology Co.,Ltd.,Chengdu 610020,Sichuan)
出处
《浙江农业科学》
2025年第9期2287-2291,共5页
Journal of Zhejiang Agricultural Sciences
基金
成都市重点研发支撑计划(2023-YF09-00034-SN)
成都农业科技中心地方财政专项(NASC2021ST04)
四川省农业科学院“1+9”揭榜挂帅科技攻关(1+9KJGG005)。
关键词
复垦地
土壤肥力
有机质
耕作层
障碍消除
reclaimed land
soil fertility
organic matter
tillage layer soil
obstacle elimination
