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基于随机森林和DBSCAN的采矿后土地使用预测
Qiang Bo1, Pinhan Lv1,2, Ziguan Wang1,3
1Kunming University of Science and Technology Oxbridge College, Yunnan, China.
PloS one
|January 2, 2024
概括
在中国,采矿回收涉及使用土壤营养素和环境因素对采矿后的土地进行分类. 结果指导了可持续的土地利用规划,并建议用于优化土壤健康的特定作物,如大豆.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 可持续发展 可持续发展 可持续发展
背景情况:
- 矿山回收对于可持续采矿至关重要.
- 评估采矿后的土地使用对于生态恢复至关重要.
- 中国的洪柳林矿区面临着土地利用方面的挑战.
研究的目的:
- 评估洪柳林采矿区采矿后的不同土地用途.
- 根据环境因素对土壤样本进行分类,以便进行回收规划.
- 为土地利用和置土地利用策略提供建议.
主要方法:
- 从现有土地使用和回收区域收集了145个土壤样本 (深度0-20厘米).
- 分析了14个环境因素,包括土壤有机物 (SOM),总 (TN),可用的 (AP),可用的 (AK),K,斜率,侧面和地形湿度指数 (TWI).
- 使用随机森林分类器,在土地使用分类中达到95%的准确性.
主要成果:
- 随机森林模型以95%的准确性准确地分类了土地使用类型.
- 归类为C1的土壤样本显示总 (TN) 和K值明显较高,表明土壤颗粒较小和沙土质地质.
- 在45个回收样本中,15个样本被分为C1,23个样本被分为C2,5个样本被分为C3,2个样本被分为C4,其中C1-C显示了最大的土壤营养.
结论:
- 土壤营养含量和环境因素是采矿后土地利用分类的关键指标.
- 根据土壤分类,提出了特定的作物建议 (大豆,墨菲) 和策略 (土壤沉降填充,土壤营养增强).
- 这些发现支持有根据的土地利用规划和利用置后采矿土地的战略.
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