| 孔鹏飞,刘志臣,郭宇,任光明,王虎胜,罗永双,姜先欢.贵州遵义汇川区耕地质量地球化学特征及对土地整治工作的意义[J].贵州地质,2020,37(3):273-280 |
| 贵州遵义汇川区耕地质量地球化学特征及对土地整治工作的意义 |
| Geochemical Survey Results of Cultivated Land Quality and Its Significance to Land Reclamation of Huichuan District, Zunyi, Guizhou Province |
| 投稿时间：2020-05-14 |
| DOI： |
| 中文关键词: 耕地图斑 地球化学评价 土地整治 汇川区 贵州遵义 |
| 英文关键词:Arable land map Geochemical evaluation Land reclamation Huichuan district Gui-zhou Zunyi |
| 基金项目:贵州省国土资源厅主持实施的《贵州省耕地质量地球化学调查评价》项目子项目《贵州省汇川区耕地质量地球化学调查评价》(黔地矿耕调:2017-06)。 |
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| 中文摘要: |
| 通过开展贵州遵义汇川区1∶5万耕地质量地球化学调查工作，对区内耕地表层土壤及代表性农作物样品采集、分析测试，并利用基于Arcgis平台开发的土地质量地球化学调查评价数据管理与维护(应用)子系统，以耕地图斑为评价单元，对汇川区耕地质量地球化学特征进行了评价，结果表明:汇川区耕地土壤有机质含量较高，以二等为主；土壤养分综合质量较好，以二等为主；土壤硒含量较高，富硒耕地面积比例达93%。本文探索了调查评价成果对土地整治工作的意义:一是摸清了研究区耕地有效面积和耕地质量，为土地整治的选址规划提供了精准性；二是摸清了500亩以上坝区的综合条件，为坝区规划发展现代高效农业的土地整治工作提供了科学性；三是摸清了研究区耕地土壤中养分元素分布特征，大致了解了水稻、辣椒等农作物元素组成，特别是富硒耕地和农作物的发现，为土地整治中特色农业生产规划提供了指导性。 |
| 英文摘要: |
| The surface soil of Huichuan District cultivated land and representative crops was geochemically investigated in a scale of 1∶50000, and the samples were collected, analyzed and tested, based on Arcgis Platform, the management and maintenance (application) subsystem of land quality geochemistry survey and evaluation data was developed, and the cultivated land quality in Huichuan District was evaluated with the cultivated land map spot as the geochemistry unit, the results showed that the content of soil organic matter in cultivated land in Huichuan District was higher, and the second-class soil was the main one; the comprehensive quality of soil nutrients was better, and the second-class soil was the main one; the content of selenium in soil was higher, and the proportion of cultivated land rich in selenium was 93%.This paper explores the significance of the results of investigation and evalution to land reclamatios:First, the effective area and quality of cultivated land in the study area are found out, which provides precision for site selection and planning of land reclamation;Second, the comprehensive conditions of the Flat Area Of Mountainous Above 500 Mu have been found out, which provides a scientific basis for the planning and development of modern and efficient agriculture in the flat area of mountainous; Third, the distribution characteristics of nutrient elements in the cultivated soil of the study area have been found out,the discovery of element composition of crops such as rice and pepper, especially selenium-rich arable land and crops, provides guidance for Special agricultural production planning in land reclamation. |
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