桂北地区蟋蟀物候对气候变暖的响应

对桂北地区蟋蟀始鸣和终鸣以及气候变化多年同步观测资料进行对比分析,结果表明:近10年来桂北地区蟋蟀始鸣期呈提前趋势,终鸣期稳定,始终鸣间隔日及生长繁殖季显著延长;桂林雁山近34年来平均气温呈显著上升趋势,特别是近10年来增温特别明显,在增温过程中又以春季增温为主,冬季和秋季增温次之,夏季呈弱降温趋势;2~4月平均气温(T2-4)是影响蟋蟀始鸣期和始终鸣间隔日的主要气候生态因子;蟋蟀物候期变化是对气候变暖响应的结果。

Response of the Phenology of Cricket in North Guangxi to Climate Warming

Based on the contrastive analysis of the phenological phase of cricket and meteorological data in north Guangxi,the result indicated cricket's phenology was mainly reflected in generally advance in the start warble date,stable in the halt warble date and notably prolonged in interval dates.The mean annual temperature had presented a notably increasing trend in the last 34 years in Yan Mountain,especially more raising tendency in 10 years,and dominated by spring warming.It was the mean temperature from Feb.to Apr.(T2-4),the dominated climatic economical factors which impacted the cricket start warble dates and interval dates.The conclusion showed that the changes of cricket phenology were the response of insect to climate warming.