孢粉记录的岱海盆地1500年以来气候变化  

CLIMATE CHANGES OF DAIHAI BASIN DURING THE PAST 1 500 FROM APOLLEN RECORD

作　　者：许清海[1] 肖举乐[2] 中村俊夫[3] 阳小兰 杨振京[5] 梁文栋[2] 井内美郎[6] 

机构地区：[1]河北师范大学资源与环境学院,石家庄050016 [2]中国科学院地质与地球物理研究所,北京100029 [3]名古屋大学年代测定综合研究中心 [4]河北省地理科学研究所,石家庄050011 [5]中国科学院植物研究所,北京100093 [6]爱媛大学生物地球圈科学系

出　　处：《第四纪研究》2004年第3期341-347,共7页Quaternary Sciences

基　　金：国家杰出青年科学基金项目 (批准号 :4992 5 2 0 5 );国家科学技术部重大基础研究前期研究专项项目 (批准号 :2 0 0 3CCA0 180 0 );国家自然科学基金项目 (批准号 :40 1710 95 );河北省自然科学基金项目 (批准号 :40 2 615 )联合资助

摘　　要：根据岱海盆地 99A孔 1.84m以上地层较高分辨率的孢粉资料 ,运用中国北方部分科属花粉 -气候响应面定量恢复了岱海盆地 15 0 0aB .P .以来的七月平均气温和年均降水量。研究结果表明 ,岱海盆地的气候变化表现出明显的过渡带特征 ,15 0 0aB .P .以来 ,七月平均气温除 15 0 0～ 130 0aB .P .时段外 ,多低于现在 ;15 0 0～ 980aB .P .岱海盆地的气候变化为温干 -冷湿交替 ,980～ 4 0 0aB .P .以凉干 -冷湿交替为特征 ,4 0 0aB .P .以来变为凉干 -温湿的交替。 980aB .P .以来 ,伴人植物草、荨麻花粉增加 ,表明人类活动加剧。是否是人类活动的加剧导致了 4 0 0aB .P .以后岱海盆地气候变化格局的改变 ,值得进一步研究。A higher resolution pollen record from core 99A reveals the variation of mean July temperatures and annual precipitations of Daihai basin during the past 1 500 by using pollen-climate response surfaces conducted by Sun Xiangjun et al. The result shows that the climate changed from warm and dry to cold and humid during the period of 1 500～980 aB.P. , from cool and dry to cold and humid during the period of 980～400aB.P., then from cool and dry to warm and humid since 400aB.P. The changes of climate pattern were different from that of East part of China and West part of China, and it showed the clear transitional situation. The mean July temperatures, except for 1 500～1 300aB.P., were lower than those of the present. Both Medieval Warm Period and Little Ice Period were present in the Daihai area, but the mean July temperatures were lower than those of the present during the Medieval Warm Period, and the mean July temperatures weren't the lowest period during the past 1 500aB.P. There is a clear increasing of Humulus and Urticaceae pollen percentages since 980aB.P., that probably referred to the intensity of human action. Whether the intensity of human actions could cause the changes of climate pattern should be further studied.

关 键 词：岱海盆地 气候变化 花粉-气候响应面 

分 类 号：P46[天文地球—大气科学及气象学] Q944.571[生物学—植物学]