| 刘春英,吴杰,李发跃.贵州省贵阳市云岩区耕地质量地球化学调查评价及特色耕地分布特征研究[J].贵州地质,2020,37(4):439-446, 470 |
| 贵州省贵阳市云岩区耕地质量地球化学调查评价及特色耕地分布特征研究 |
| Geochemical Investigation and Evaluation of Cultivated Land Quality Indicating Significance for Featured Cultivated Land in Yunyan District, Guiyang City, Guizhou Province |
| 投稿时间：2020-04-26 |
| DOI： |
| 中文关键词: 云岩区 土壤质量 养分综合 化学评价 富硒富锗耕地 |
| 英文关键词:Yunyan district Soil quality: Nutrient synthesis Chemical evaluation Selenium-rich and germanium-rich cultivated land |
| 基金项目:贵州省耕地质量地球化学调查评价项目(黔耕调2017-02)。 |
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| 中文摘要: |
| 云岩区耕地质量地球化学调查评价以贵州省第二次土地调查图斑为评价单元，并基于Arcgis102和土地质量地球化学调查与评价数据管理与维护(应用)子系统平台，涵盖耕地、园地、裸地等地类；面积1243 km2，涉及耕地面积707 km2。研究区共采集各类介质样品82件，耕地表层土壤采样密度为每平方千米耕地图斑905个样点。以耕地土壤中元素地球化学组成及含量为依据，评价划分耕地土壤养分地球化学综合等级、环境质量地球化学综合等级和耕地质量地球化学等级，发现云岩区富硒耕地0743万亩，富锗耕地060万亩。 |
| 英文摘要: |
| The geochemical survey and evaluation of cultivated land quality in Yunyan District takes the second land survey map spots of Guizhou Province as the evaluation units, which are based on the maintenance (application) subsystem platform of Arcgis 10.2 and geochemical survey and evaluation data and cover from cultivated lands, garden lands to naked lands,etc, its area 12.43 km2, involving cultivated land areas 7.07 km2. A total of 82 samples of various media were collected in the studying area. The sampling density of topsoil was 9.05 spots per square kilometer of cultivated land. According to the element geochemical composition and content in cultivated soil, it evaluate and divide soil nutrients of cultivated land, and whose comprehensive grades of Geochemistry. It was found that the cultivated land rich in selenium and germanium was 7 430 mu and 6 000 mu respectively. |
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