Impacts of changing conditions on the ecological environment of the Shiyang river basin, China

被引:6
作者
Jun, Z. J. [1 ,2 ]
Ming, L. K. [1 ,3 ]
Qiang, C. Y. [4 ]
Min, W. [3 ]
Xin, P. Z. [1 ]
机构
[1] Lanzhou City Univ, Coll Urban Environm, Lanzhou 730000, Gansu, Peoples R China
[2] Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg China, Xian 710048, Shaanxi, Peoples R China
[3] Bur Civil Affairs Lanzhou City, Lanzhou 730000, Gansu, Peoples R China
[4] Gansu Agr Univ, Coll Water Conservancy & Hydropower Engneering, Lanzhou 730000, Gansu, Peoples R China
关键词
climate change; ecological environment; human activity; Shiyang river basin; LAND-USE;
D O I
10.2166/ws.2022.197
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The effect of climate change and human activities on water resources, glaciers, and land use/cover has been widely studied. The Shiyang River Basin is an important natural reserve in the Hexi Corridor of Gansu Province. Global warming and human activities have led to extreme ecological changes in this region. Exploring the response of the ecological environment of the Shiyang River Basin to a changing climate is important for studying the sustainable development of the fragile ecological environment in this basin. The meteorological data for this study was obtained from China Meteorological Data Service Center, and the average temperature and precipitation data were acquired from four meteorological stations. By investigating the changes in the watershed climate and social environment in the Shiyang River Basin, the corresponding changes in glacial and surface water resources, landscape patterns, and natural and anthropogenic factors in the basin under changing environment were analysed. The results show that the temperature in different seasons has increased in the past 60 years, and the inclination rate of air temperature was 0.56 degrees C/10a. In addition, precipitation increased slightly at 0.737 mm/10a. Natural conditions and climate change have reduced the supply of glacial meltwater in the Qilian Mountains, and the regulation of glacial snow in downstream rivers is poor. The distribution of the water production rate in each river was similar to that of precipitation. The runoff modulus of the deep mountain area was greater than that of the shallow mountainous area. The western region is larger than the eastern region, and the rationalisation of the land use structure in the basin has a decisive effect on optimising the landscape pattern of the basin. The spatial evolution of the vegetation cover in the basin is generally stable; under the combined action of climate change and human activities, downstream water resources are reducing, and landscape vegetation is shifting to a high risk in the Shiyang River Basin. Among the influencing factors, anthropogenic factors play a dominant role in the runoff variation in this basin. Climate warming and unregulated human activities are the main causes of regional environmental deterioration. The study findings can contribute to understanding the coupling relationship between the natural and ecological evolution process of the inland river basin and human activities in the arid zone. Further, exploring the change trend of the ecological environment of the Shiyang River Basin can help determine the human adaptation countermeasures to mitigate ecological deterioration and ensure sustainable development of ecologically fragile areas.
引用
收藏
页码:5689 / 5697
页数:9
相关论文
共 33 条
  • [11] [李开明 Li Kaiming], 2018, [干旱区研究, Arid Zone Research], V35, P12
  • [12] Recent glacial retreat and its effect on water resources in eastern Xinjiang
    Li KaiMing
    Li ZhongQin
    Gao WenYu
    Wang Lin
    [J]. CHINESE SCIENCE BULLETIN, 2011, 56 (33): : 3596 - 3604
  • [13] [李小玉 Li Xiaoyu], 2004, [冰川冻土, Journal of Glaciology and Geocryology], V26, P747
  • [14] Li ZhiFei Li ZhiFei, 2013, Journal of Water Resources Research, V2, P273, DOI 10.12677/JWRR.2013.25039
  • [15] [李宗礼 LI Zong-li], 2009, [干旱区研究, Arid Zone Research], V26, P460
  • [16] [刘海猛 Liu Haimeng], 2013, [地理科学进展, Progress in Geography], V32, P87
  • [17] [刘宇硕 Liu Yushuo], 2012, [冰川冻土, Journal of Glaciology and Geocryology], V34, P1031
  • [18] Sun D.Y., 2016, CHINESE AGR SCI B, V32, P80
  • [19] Glacier changes in the Qilian Mountains in the past half-century: Based on the revised First and Second Chinese Glacier Inventory
    Sun, Meiping
    Liu, Shiyin
    Yao, Xiaojun
    Guo, Wanqin
    Xu, Junli
    [J]. JOURNAL OF GEOGRAPHICAL SCIENCES, 2018, 28 (02) : 206 - 220
  • [20] [王宝鉴 WANG Baojian], 2007, [地球科学进展, Advance in Earth Sciences], V22, P730