| 引用本文: | 姜宝福，张仁勇，衣学军，兰绍斌，崔步礼，肖蓓，王莹，李东昇.2020.胶东半岛湖泊面积对气候变化的响应[J].地球环境学报,11(4):401-411 |
| IANG Baofu, ZHANG Renyong, YI Xuejun, LAN Shaobin, CUI Buli, XIAO Bei, WANG Ying, LI Dongsheng.2020.The response of lake area in the Jiaodong Peninsula to climate change[J].Journal of Earth Environment,11(4):401-411 |
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| 摘要: |
| 湖泊是陆地水圈的重要组成部分，不仅参与自然界水循环，而且具有提供水源、调节洪水、维持生态环境健康等功能，研究湖泊面积的动态变化特征，探讨湖泊面积动态对气候变化的响应对水资源的合理利用及生态环境保护具有重要的现实意义。以胶东半岛为研究区，基于1985—2017年的Landsat遥感影像数据为数据源，提取了胶东半岛近33年的湖泊面积和数量信息，揭示了胶东半岛湖泊水体面积变化特征及其对气候变化的响应关系。结果显示：1985—2017年，胶东半岛湖泊面积和湖泊数量均呈波动减少趋势，分别减少100.02 km2和79个。[0.01, 0.1) km2等级的湖泊面积表现为波动增加趋势，其他等级的湖泊面积均表现为波动减少趋势，≥10 km2等级的湖泊面积下降最明显。胶东半岛湖泊面积与降水呈正相关，显著水平均在0.05以上；湖泊面积与气温呈负相关，未达显著水平。胶东半岛影响湖泊面积突变的降水量阈值为626.9 mm左右。低于626.9 mm，湖泊面积随降水量减少而急剧下降；高于626.9 mm，湖泊面积随降水量增加而稳定增长。“引黄济青”工程对大型湖泊面积变化具有重要影响，且极大地缓解了烟威地区的旱情，对胶东半岛自然生态环境和社会经济的可持续发展发挥了重要作用。 |
| 关键词: 湖泊面积 气候变化 “引黄济青”工程 胶东半岛 |
| DOI：10.7515/JEE192051 |
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| 基金项目:山东省重点研发计划项目（2018GSF117021）；山东省自然科学基金项目（ZR2019MD040）；山东省高等学校青创科技支持计划（2019KJH009）；山东省高等学校科技计划项目（J17KA192） |
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| The response of lake area in the Jiaodong Peninsula to climate change |
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IANG Baofu, ZHANG Renyong, YI Xuejun, LAN Shaobin, CUI Buli, XIAO Bei, WANG Ying, LI Dongsheng
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1. School of Resources and Environmental Engineering, Ludong University, Yantai 264025, China
2. Yantai Land Reserve Center, Yantai 264003, China
3. Yantai Hydrological Bureau, Yantai 264003, China
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| Abstract: |
| Background, aim, and scope As an important part of the terrestrial hydrosphere, lakes not only participate in the natural water cycle, but also have the functions of providing water, regulating floods and maintaining the health of the ecological environment. It is very important to study the dynamic change of lake area and discuss the response of lake area dynamics to climate change, which is of great important practical significance to the rational utilization of water resources and the protection of ecological environment. In this study, the Jiaodong Peninsula was taken as study area to investigate the change characteristics of lake area and to reveal its response to climate change in the past 33 years, which would provide scientific basis and guidance for the rational development and utilization of water resources in Jiaodong Peninsula. Materials and methods Based on Landsat remote sensing image data from 1985 to 2017, this study extracted the lake area and quantity information of the Jiaodong Peninsula. The main aims were to investigate the change characteristics of lake area and to reveal its response to climate change in the past 33 years. Results The lake area and quantity fluctuated and decreased from 1985 to 2017, with a total decrease of 100.02 km2 and 79, respectively. The lake area with patch area ranging from 0.01 km2 to 0.1 km2 fluctuated and increased from 1985 to 2017, while the lake area of other grade fluctuated and decreased, especially for the lakes with area more than 10 km2. Discussion The lake area was positively correlated with annual precipitation in the Jiaodong Peninsula, with a significant level above 0.05, while the lake area was negatively correlated with the temperature, but not significantly. The precipitation threshold affecting the abrupt change of lake area in Jiaodong Peninsula was about 626.9 mm, showing that when the annual precipitation was less than 626.9 mm, the lake area decreased sharply with the decrease of precipitation. While the precipitation is higher than 626.9 mm, the lake area increased steadily with the increase of precipitation. The project of “Diversion from Yellow River to Qingdao” had a great impact on the area of large lakes, and it played an important role in the sustainable development of natural ecological environment and social economy of Jiaodong Peninsula. Conclusions The lake area and quantity in Jiaodong Peninsula fluctuated and decreased from 1985 to 2017. The change of lake area is mainly controlled by the amount of annual precipitation, with a critical value of 626.9 mm. Recommendations and perspectives In order to investigate the changing process of lake area in more detail, the temporal resolution of remote sensing images should be improved. The relationships between lake area and natural factors and human activity factors will be simulated to forecast the changes of lake area in the future. The study will provide scientific support for water management of lakes in Jiaodong Peninsula. |
| Key words: lake area climate change diversion from Yellow River to Qingdao Jiaodong Peninsula |
