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湿地植被覆盖变化及其对黑龙江-阿穆尔河流域气候变化的反应

Xinyue Chang^1,2, Lingxue Yu¹, Guangshuai Li^1,3

¹Remote Sensing and Geographic Information Research Centre, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China.

Frontiers in plant science

|August 21, 2023

概括

黑龙江-阿穆尔河流域的湿地植被在2000年至2018年间呈现增长,对不同地区的温度和降水等气候因素作出不同的反应. 这凸显了中高度湿地对气候变化的敏感性.

科学领域:

环境科学环境科学
生态生态学生态生态学
气候学气候学气候学

背景情况:

黑龙江-阿穆尔河流域是一个巨大的亚洲水生系统,包含对气候变化敏感的重要湿地资源.
中高度湿地具有重要的生态价值,是环境变化的关键指标.

研究的目的:

调查2000年至2018年黑龙江-阿穆尔河流域湿地植被覆盖面的变化.
分析湿地植被对气候变化的反应,考虑到区域差异.

主要方法:

利用了生长季气候数据 (五月至九月) 和2000年至2018年的叶面积指数 (LAI) 数据.
使用部分相关性分析来评估植被LAI和气候变量 (太阳辐射,温度,降水) 之间的关系.
检查了不同区域气候间隔 (温暖,潮湿,寒冷,干旱) 的气候植物相关性.

主要成果:

在整个盆地观察到湿地LAI (0.014 m2/yr) 的总体增加,与变暖和湿趋势相关.
在中国和俄罗斯,湿地植被与太阳辐射/最低温度之间的正相关性;降水显示有滞后效应.
蒙古湿地植被与降水有正相关;温度和太阳辐射的影响因地区和气候类型而异.

结论:

湿地植被的生长受到太阳辐射,温度和降水的复杂相互作用的影响,区域差异很大.
降水有利于温暖地区的生长,但可以在超出值时具有抑制作用;太阳辐射和最低温度在寒冷,热量有限的地区是关键.
了解这些反应对于有效保护湿地生态系统和管理中高度地区气候变化影响至关重要.

关键词:

黑龙江-阿穆尔河流盆地气候变化气候变化气候变化部分相关性部分相关性跨境地区是跨境地区.湿地植被覆盖面的湿地植被覆盖面.

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