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对１９９３年冬山东池塘越冬鲤大批死亡原因进行了调查，发现灾害性气候和水质恶化是池塘越冬鲤大批死亡的主要原因，提出了相应的防范对策。
In the winter of 1993, the causes of large numbers of overwintering carps in Shandong ponds were investigated. It was found that the disastrous climate and the deteriorating water quality were the main reasons for large numbers of overwintering carps in the ponds and the countermeasures were put forward.