[土地利用变化及其对巴扬努尔市生态环境质量的影响]
Bo-Wen Ye1, Biao Sun1,2,3, Xiao-Hong Shi1,2,3
1College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China.
Huan jing ke xue= Huanjing kexue
|December 4, 2024
概括
中国巴扬努尔的息地质量在2000年至2022年间呈现缓慢但微不足道的改善,南部地区的表现更好. 土地利用变化,特别是涉及草原,对这些息地动态产生了重大影响.
科学领域:
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
- 生态生态学 生态生态学
背景情况:
- 拜安努尔是中国北部一个重要的生态屏幕.
- 监测息地质量和土地利用变化对于区域生态平衡和生物多样性至关重要.
- 了解这些动态对于干旱和半干旱地区的生态管理至关重要.
研究的目的:
- 从2000年到2022年,分析巴扬努尔息地质量的动态变化.
- 调查息地质量变化与土地使用转移之间的关系.
- 为生态环境管理和城市规划提供基础.
主要方法:
- 利用谷歌地球引擎 (GEE) 平台进行多周期遥感图像分析.
- 构建了一个遥感生态指数 (RSEI) 来量化息地质量.
- 在研究期间,与已识别的土地利用变化相关的RSEI变化.
主要成果:
- 巴扬努尔的息地质量呈现缓慢,微不足道的上升趋势 (0.0008 a-1),整体质量较差;南部地区的质量高于北部地区.
- 在乌拉德中旗和乌拉德后旗地区发生了重大土地利用变化,主要涉及草原,荒地和耕地.
- 息地质量改善 (2000-2010年) 与转换为耕地和草原有关,而下降 (2010-2022年) 与草原收缩成为荒地有关.
- 草原面积变化对息地质量波动的影响最大.
结论:
- 草原动态是影响巴扬努尔息地质量变化的关键驱动因素.
- 土地利用规划,特别是关于草原管理的规划,对于改善生态条件至关重要.
- 这些发现支持在干旱/半干旱地区的生态文明建设和土地模式优化.
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