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Declining Lake Water Levels and Suitable Wind Conditions Promote Locust Outbreaks and Migration in the Kazakhstan-China Area

文献类型： 外文期刊

作者： Feng, Shiqian 1 ; Chang, Xiao 1 ; Wu, Jianguo 2 ; Li, Yun 3 ; Zhang, Zehua 1 ; Zhao, Li 5 ; Tu, Xiongbing 1 ;

作者机构： 1.Chinese Acad Agr Sci, State Key Lab Biol Plant Dis & Insect Pests, Inst Plant Protect, Beijing 100193, Peoples R China

2.Xinjiang Uygur Autonomous Reg Locust & Rodent Pest, Urumqi 830000, Peoples R China

3.Cent Stn Forecasting & Controlling Locusts Rats Al, Aletai 836500, Peoples R China

4.Chinese Acad Agr Sci, Inst Western Agr, Changji 831100, Peoples R China

5.Xinjiang Agr Univ, Coll Agr, Urumqi 830052, Peoples R China

关键词： locust; Kazakhstan-China border; lake water level; wind; migration

期刊名称：AGRONOMY-BASEL （ 影响因子：3.4； 五年影响因子：3.8 ）

ISSN：

年卷期： 2025 年 15 卷 7 期

页码：

收录情况： SCI

摘要： Outbreaks of locust plagues are becoming increasingly frequent against the backdrop of climate change. Locust outbreaks in the Caucasus and Central Asia, especially in Kazakhstan, pose continuous threats to neighboring countries, including China, Kyrgyzstan, and more. However, locust outbreak forecasts and migration movement are yet to be studied in this area. In our study, we collected water level data in major lakes and water bodies, as well as annual average precipitation in the past 15 years in Kazakhstan, to analyze their contributions to locust outbreaks. Multiple linear regression analysis revealed a significant negative correlation between overall lake water level and the following year's locust outbreak area in Kazakhstan. Considering that the overall lake water levels in 2023 and 2024 reached a quite low level historically, we predicted heavy locust outbreaks in 2025. Furthermore, through wind field analysis and wind-born trajectory modeling, we identified two migration routes of locusts from Kazakhstan into Xinjiang, China, riding the northwest wind, with lakes near the Sino-Kazakhstan border as the main sources. Overall, our study identified high locust outbreak challenges in Kazakhstan in recent years and determined two wind-supported migration routes of locusts invading China, which are significant for guiding monitoring and prevention efforts in the Sino-Kazakhstan border area.

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