浙南海涂围垦区土壤品质综合评价

发布时间：2018-04-18 21:26

本文选题：土壤学 + 浙南　；参考：《浙江农林大学学报》2016年06期

【摘要】：系统掌握浙南海涂围垦区土壤品质现状和空间分布特征,为绿地系统规划、土壤改良措施和绿化工程实施提供参考依据。通过取样调查,获得土壤基本性状,再采用模糊数学综合评价土壤品质与分级,并运用全球定位系统(GPS),ARCGIS分析软件和Surfer软件获得土壤品质等值线分布图。结果表明:1研究区域土壤容重偏大,为1.32 g·cm-3,且含盐量高,为7.7 g·kg~(-1),碱性强,pH 8.25,有机质质量分数偏少,为17.94 g·kg~(-1),全氮和有效磷质量分数严重偏低,分别为0.69 g·kg~(-1)和4.82 mg·kg~(-1),而速效钾质量分数丰富,为0.62 g·kg~(-1)。2土壤含盐量是浙南滨海围垦区土壤品质的主要限制因子,容重和pH值也是重要评价指标。3研究区域土壤品质总体较差,并且表层土壤品质(综合评价值为0.482)略好于下层土壤(综合评价值为0.435)。土壤品质分级与等值线分布图可以更好地指导土壤改良和植被构建,需要降低土壤含盐量、pH值和容重,选取优良耐盐碱植物进行绿化种植。
[Abstract]:The present situation and spatial distribution of soil quality in coastal reclamation area of southern Zhejiang Province were systematically grasped, which provided the reference for the planning of green space system, soil improvement measures and the implementation of greening project.The basic properties of soil were obtained by sampling and investigation, and the soil quality and classification were evaluated by fuzzy mathematics, and the contour distribution map of soil quality was obtained by using GPS / ARCGIS and Surfer software.The results showed that the soil bulk density was 1.32 g / cm ~ (-3), and the salt content was high (7.7 g 路kg ~ (-1)), pH was 8.25, organic matter content was 17.94 g 路kg ~ (-1) ~ (-1), total nitrogen and available phosphorus content was very low.The soil salt content of 0.62 g kg~(-1).2 was the main limiting factor of soil quality in coastal reclamation area of south Zhejiang Province, and the bulk density and pH value were also the important evaluation indexes.And the surface soil quality (the comprehensive evaluation value is 0.482) is slightly better than that of the lower soil (the comprehensive evaluation value is 0.435%).Soil quality grading and isoline distribution map can better guide soil improvement and vegetation construction. It is necessary to reduce soil salinity, pH value and bulk density, and select saline-tolerant plants for greening planting.
【作者单位】：浙江省亚热带作物研究所;温州市瓯江口开发建设投资集团有限公司;
【基金】：浙江省农业科学院青年人才培养项目(2015R26R08E03) 温州市公益性农业科技项目(N20150022) 温州市森林生态科技创新团队项目(C20150002)
【分类号】：S151.9

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