浙江农业科学

浙江农业科学 ›› 2025, Vol. 66 ›› Issue (7): 1748-1751.DOI: 10.16178/j.issn.0528-9017.20240118

• 资源与环境 • 上一篇    下一篇

浙江省滨海盐碱土分布状况及改良利用措施

孔海民1(), 林宝义1,*(), 季天委1, 陆若辉1, 盛美玲2, 陈红金1, 杨东1   

  1. 1.浙江省耕地质量与肥料管理总站,浙江 杭州 330010
    2.浙江省农业科学院,浙江 杭州 310021
  • 收稿日期:2024-02-19 出版日期:2025-07-11 发布日期:2025-07-28
  • 通讯作者: 林宝义(1973—),男,浙江平阳人,高级农艺师,从事种植业管理与技术推广,E-mail:461061720@qq.com。
  • 作者简介:孔海民(1986—),女,山东肥城人,高级农艺师,从事耕地肥料技术研究与推广,E-mail:konghaimin2004@163.com。
  • 基金资助:
    浙江省“三农九方”科技协作计划“揭榜挂帅”项目(2023SNJF041);浙江省“尖兵”“领雁”科技研发攻关计划(2023C02005)

Distribution and improvement of saline alkali soil in coastal areas of Zhejiang Province

KONG Haimin1(), LIN Baoyi1,*(), JI Tianwei1, LU Ruohui1, SHENG Meiling2, CHEN Hongjin1, YANG Dong1   

  1. 1. Zhejiang Cultivated Land Quality and Fertilizer Management Station, Hangzhou 330010, Zhejiang
    2. Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang
  • Received:2024-02-19 Online:2025-07-11 Published:2025-07-28

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摘要：

通过对浙江省耕地、园地土壤进行调查采样并测定土壤理化性质,结果表明:浙江省pH值大于8.0的盐碱土约占耕地、园地土壤的4.7%,主要分布在杭州湾沿岸地区、东部沿海地区以及舟山群岛地区的平原低阶、中阶或丘陵下部等。盐碱土容重较高,均值为1.30 g·cm-3,比全省土壤平均水平高13%;土壤含盐量平均值0.86 g·kg-1,较全省土壤含盐量平均值高23%;土壤有机质和全氮含量分别为15.74、1.07 g·kg-1,分别比全省土壤有机质和全氮平均值低48%和42%;盐碱土的速效钾和缓效钾含量较高,分别为227.5、685.44 g·kg-1,分别比全省土壤速效钾和缓效钾平均值高62%和90%,通过工程措施、农艺措施或化学措施可以达到改良利用目的,该研究可为盐碱土土壤改良提供参考。

关键词: 盐碱土, 理化性状, 改良利用

Abstract:

Through the investigation and sampling of cultivated land and garden soil in Zhejiang Province, and the determination of soil physical and chemical properties, the results showed that the saline alkali soil with pH value greater than 8.0 accounted for about 4.7% of cultivated land and garden soil in Zhejiang Province, which was mainly distributed in the coastal areas of Hangzhou Bay, the eastern coastal areas and the lower part of the plains, middle steps or hills in Zhoushan Archipelago. The unit weight of saline alkali soil was higher, with an average of 1.30 g·cm-3, which was 13% higher than the average level of soil in the province; the average soil salt content was 0.86 g·kg-1, which was 23% higher than that of the whole province; The contents of soil organic matter and total nitrogen were 15.74 g·kg-1 and 1.07 g·kg-1, respectively, which were 48% and 42% lower than those of the whole province; The contents of rapidly available potassium and slowly available potassium in saline alkali soil were 227.5 g·kg-1 and 685.44 g·kg-1, respectively, which were 62% and 90% higher than those in the whole province. The purpose of improvement and utilization can be achieved through engineering measures, agronomic measures or chemical measures. This study can provide reference for the improvement of saline alkali soil.

Key words: saline alkali soil, physical and chemical properties, improvement and utilization

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