欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 2021, Vol. 32 ›› Issue (10): 3653-3660.doi: 10.13287/j.1001-9332.202110.040

• • 上一篇    下一篇

利用树轮揭示人类活动对柴达木盆地巴音河径流量的影响

朱晓龙1,2, 陈庆美3, 吕爱锋3, 黄茹1, 邵雪梅2,3, 梁尔源1, 朱海峰1*   

  1. 1中国科学院青藏高原研究所, 北京 100101;
    2中国科学院大学, 北京 100049;
    3中国科学院地理科学与资源研究所, 北京 100101
  • 收稿日期:2021-08-19 修回日期:2021-09-14 出版日期:2021-10-15 发布日期:2022-04-15
  • 通讯作者: * E-mail: zhuhf@itpcas.ac.cn
  • 作者简介:朱晓龙, 男, 1995年生, 硕士研究生。主要从事树轮气候学研究。E-mail: zhxl@itpcas.ac.cn
  • 基金资助:
    国家自然科学基金项目(41671026)和青海省重大科技专项(2019-SF-A4-1)资助

Impacts of human activity on Bayin River runoff as revealed by tree rings in Qaidam Basin, China

ZHU Xiao-long1,2, CHEN Qing-mei3, LYU Ai-feng3, HUANG Ru1, SHAO Xue-mei2,3, LIANG Er-yuan1, ZHU Hai-feng1*   

  1. 1Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China;
    2University of Chinese Academy of Sciences, Beijing 100049, China;
    3Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2021-08-19 Revised:2021-09-14 Online:2021-10-15 Published:2022-04-15
  • Contact: * E-mail: zhuhf@itpcas.ac.cn
  • Supported by:
    National Natural Science Foundation of China (41671026) and the Important Science & Technology Specific Projects of Qinghai Province (2019-SF-A4-1).

摘要: 评估人类活动对径流的影响,对区域水资源开发管理有借鉴和指导意义。利用柴达木盆地北部山区7个祁连圆柏树轮宽度数据,建立区域平均树轮宽度年表。通过对区域平均树轮宽度年表与巴音河水文站径流量进行相关、滑动相关和回归分析,模拟了巴音河1956—2002年6月天然径流量变化,进而分析出人类活动对径流量的影响。结果表明: 树轮平均年表与6月径流量的相关性最强(r=0.63,P<0.01),两者相关系数在1986年后下降;基于1956—1986年树轮平均年表与6月径流量建立的转换方程,方差解释量为50.8%;基于转换方程模拟的1987—2002年径流量均值与实际观测径流量存在显著差异,模拟均值比观测均值大3.01 m3·s-1。上游人类活动已经对巴音河径流量的变化带来了明显的影响。因此,在巴音河流域未来水资源开发利用规划中,有必要将人类活动作为重要的影响因素加以考虑,以保障可持续的水资源利用。

关键词: 树木年轮, 径流, 人类活动, 柴达木盆地

Abstract: Evaluating the impacts of human activity on river runoff has important implications for regional water resource management. Here, we used seven tree-ring width chronologies to establish a regional mean tree-ring width chronology from the northern mountain of Delingha, Qaidam Basin. We conducted the correlation, moving correlation and regression analysis of regional mean tree-ring width chronology with runoff data from Bayin River gauge station. Then, we stimulated the June runoff of Bayin River from 1956 to 2002. The results showed that the highest correlation coefficient was found for June runoff (r=0.63, P<0.01), and their moving correlation coefficient decreased after 1986. Based on the stable relationship between tree-ring width chronology and the June runoff during 1956-1986, we built the reconstruction function, which was explained 50.8% of observed runoff. The stimulated runoff during 1987 to 2002 was significantly higher than the observed runoff (3.01 m3·s-1, P<0.001). These results indicated that human activity from the upper river had significant impacts on Bayin River runoff. Human activity should be considered as an important factor to protect security of sustainable water resource utilization for future water resource development and utilization in Bayin River region.

Key words: tree ring, runoff, human activity, Qaidam Basin