| 李健,卫晓锋,刘卫,张晓敏,孙厚云,贾凤超,李多杰.承德市 1∶5万滦河幅土地质量地球化学评价[J].矿产勘查,2021,12(4):1040-1048 |
| 承德市 1∶5万滦河幅土地质量地球化学评价 |
| Geochemical Evaluation of Land Quality in Chengde City : A Case Study of 1 : 50 000 Luanhe Map-sheet |
| 投稿时间：2020-01-20 |
| DOI： |
| 中文关键词: 土壤养分 土壤重金属 地球化学评价 承德 |
| 英文关键词: soil nutrients heavy metals in soil geochemical evaluation Chengde |
| 基金项目:中国地质调查局项目承德市生态文明示范区综合地质调查(编号:DD20160229-01;DD20190822)资助。 |
|
| 摘要点击次数: 1097 |
| 全文下载次数: 595 |
| 中文摘要: |
| 在河北省承德市选择重点工作区开展土地质量地球化学调查，进行土地质量地球化学评价，基于承德市 1∶5万滦河幅土地质量地球化学调查获得的土壤重金属元素和养分元素数据，在土地利用类型三调图斑上根据《土地质量地球化学评价规范》( DZ/T 0295—2016)对该地区土壤进行土地质量地球化学评价。研究结果表明:研究区土壤养分综合等级以中等(三等)为主，总面积约为 219.51 km2，占图幅面积的 54.52%；微量元素方面圈定锌元素为一等(丰富)的土地面积为 143.41 km2，占图幅总面积的 35.62%；锰元素为一等(丰富)的土地面积为 185.45 km2，占图幅总面积的 46.06%；硒元素为一等(丰富)的土地面积为 6.64 km2，占图幅总面积的 1.65%。土壤环境综合等级以轻度污染(三等)为主，总面积为 185.04 km2，占图幅面积的 45.96%。土壤质量地球化学综合等级主要以四等(差等)为主，总面积约为 186.23 km2，占图幅面积的 46.36%。根据研究区土地质量地球化学评价结果，可为研究区所在地方政府履行土地资源管理、进行农业结构调整、实施土壤环境保护、支撑脱贫攻坚等管理职能提供科学依据，为提升土地质量地球化学评价成果的利用程度及成果转化提供借鉴，对丰富和完善土地质量地球化学评价体系具有重要意义。 |
| 英文摘要: |
| In Chengde City, Hebei Province, a key work area was selected to carry out a land quality geochemical survey and a land quality geochemical evaluation. Based on the soil heavy metal element and nutrient element data obtained from the 1∶50,000 Luanhe land quality geochemical survey in Chengde City, the land According to the“Land Quality Geochemical Evaluation Specification” (DZ/T0295—2016), the land quality geochemical evaluation of the soil in this area is carried out on the three-tone map of the use type. The results of the study show that the comprehensive grade of soil nutrients in the study area is mainly medium (third-class), with a total area of about 219.51 km2, accounting for 54.52% of the map area; the area of land with zinc as the .rst-class (rich) in terms of trace elements is 143.41 km2, accounting for 35.62% of the total area of the map sheet; 185.45 km2 of land with .rst-class (rich) manganese element, accounting for 46.06% of the total map sheet; land area of .rst-class (rich) selenium is 6.64 km2,Accounting for 1.65% of the total area of the map sheet. The comprehensive grade of soil environment is mainly light pollution (third class), with a total area of 185.04 km2, accounting for 45.96% of the map area. The soil quality and geochemical comprehensive grades are mainly fourth grade (poor grade), with a total area of about 186.23 km2, accounting for 46.36% of the map area. According to the geochemical evaluation results of land quality in the study area, it can provide a scienti.c basis for the local government in the study area to perform land resource management, adjust agricultural structure, implement soil environmental protection, support poverty alleviation and other management functions, and improve the results of geochemical evaluation of land quality The extent of utilization and the transformation of results are of great signi.cance for enriching and perfecting the geochemical evaluation system of land quality. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|