煤矿开采和气候环境因素对典型的欧亚草原演变的影响
Lijing Fang1, Ruizhong Gao1, Xixi Wang2
1College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia Autonomous Region, 010018, China.
Environmental research
|December 21, 2023
概括
煤炭开采对半干旱草原的植被覆盖面 (FVC) 有负面影响,矿山附近的植被覆盖面下降,河流的植被覆盖面增加. 降水,温度和土壤类型是关键因素,需要平衡的开采和生态保护.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
背景情况:
- 煤炭开采对植被进化构成重大威胁,特别是在半干旱地区.
- 对植被模式和驱动因素的有限理解阻碍了有效的矿山复苏和缓解策略.
- 评估植被动态对于对资源依赖地区的生态保护和可持续发展至关重要.
研究的目的:
- 为了研究中国东北部一个半干旱的草原流域的植被进化模式.
- 确定和描述影响植被变化的驱动因素,重点关注煤矿开采的影响.
- 为矿业受影响地区的生态恢复和可持续土地管理提供见解.
主要方法:
- 从2000年到2021年使用模态像素模型分析部分植被覆盖面 (FVC).
- 应用森的斜率分析和曼-肯达尔趋势测试来评估时间趋势.
- 利用变化分析系数和地质探测器模型来识别驱动因素及其相互作用.
主要成果:
- 观察到FVC的南向北下降,煤矿附近显著下降,沿河道增加.
- 确定了降水,温度和土壤类型作为FVC变化的主要驱动因素.
- 发现考虑多个因素之间的相互作用显著提高了FVC预测准确度,对于降水等驱动因素的最佳范围.
结论:
- 煤炭开采活动导致周边地区的FVC大幅减少.
- 了解采矿,气候和环境因素的相互作用对于管理脆弱的生态系统至关重要.
- 这些发现支持生态保护,植被恢复和缓解半干旱采矿地区的环境退化.
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