新增耕地土壤盐渍化调查及改良措施分析

发布时间：2018-04-28 22:02

  本文选题：盐渍土 + 土壤改良　； 参考：《北方园艺》2017年08期

【摘要】：为了解定边县新增耕地的土壤盐渍化现状,对陕西省定边县盐渍化土壤面积较大的堆子梁镇新增耕地典型地块进行田间采样调查,并对采集的土样和水样及时分析测试。结果表明:定边县堆子梁镇王滩子村、小滩子村、白土岗子村的新增耕地调查地块内0~60cm土层的pH均呈强碱性(pH≥9),土壤全盐量较高;其中,白土岗子村调查地块的0~60cm土层全盐量最重,小滩子村次之,王滩子村最轻。3个调查地块蓄水沟内水样均呈碱性,全盐量322~1 462mg·L~(-1)。根据调查区域的新增耕地盐渍化现状,参考当地及邻近地区较成功的盐渍土改良经验,针对性的总结了耕作措施、地表覆盖措施、隔盐措施、化学措施、灌溉措施、植物措施等改良措施的原理及优缺点,以便为治理定边县盐渍化新增耕地提供技术参考。
[Abstract]:In order to understand the present situation of soil salinization of new cultivated land in Dingbian County, a field sampling investigation was carried out on the typical plot of newly added cultivated land in Duiziliang Town, Shaanxi Province, where the salinized soil area was large, and the collected soil samples and water samples were analyzed and tested in time. The results show that the new cultivated land in Duiziliang Town, Dingbian County, Xiaotan Zi Village and Baitugang Village all have strong alkaline pH 鈮，

本文编号：1817053