土地质量地球化学评价方法研究与应用:以黑龙江省宏胜镇为例

发布时间：2018-07-03 01:24

本文选题：土地质量 + 地球化学评价　；参考：《现代地质》2017年01期

【摘要】：为进一步加强土地质量地球化学评价成果的应用性,本评价方法以土地利用现状图斑为评价单元,采用网格化布设土壤采样点,网度为400 m×400 m,采样深度为0~20 cm。分析了土壤样品中N、P、K、As、Se等16项元素指标。参考《土地质量地球化学评价规范》对黑龙江省宏胜镇农耕区土地质量进行了地球化学评价。结果显示:宏胜镇农耕区土地环境综合质量状况优质,达到一等环境质量的耕地面积占99.30%;养分综合质量丰富以上的土地占94.03%。同时经过本次评价进一步发现了81.05 km~2的珍贵富硒土地资源,土壤硒含量在0.4~1.01 mg/kg之间。
[Abstract]:In order to further strengthen the application of land quality geochemical evaluation results, this evaluation method takes the land use status map as the evaluation unit, uses the grid to set up soil sampling points, the mesh degree is 400 m 脳 400 m, and the sampling depth is 0 ~ 20 cm. In this paper, the index of 16 elements, such as Nickelophane, ascorbic acid and so on, in soil samples was analyzed. The geochemical evaluation of land quality in the farming area of Hongsheng Town, Heilongjiang Province was carried out with reference to the Code for Geochemical Evaluation of Land quality. The results show that the comprehensive quality of land environment in Hongsheng farming area is of high quality, the area of cultivated land with first class environmental quality accounts for 99.30%, and the land with rich comprehensive quality of nutrients accounts for 94.03 pieces of land. At the same time, the valuable selenium rich land resources of 81.05 km~2 were further found through this evaluation, and the soil selenium content was between 0.4 mg/kg and 1.01 mg/kg.
【作者单位】：黑龙江省地质调查研究总院;
【基金】：中国地质调查局国土资源开发与保护项目“黑龙江抚远—富锦地区多目标地球化学调查”(12120113001000)
【分类号】：S151.93

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