中文摘要：

通过对“中国大陆环境钻探计划”首钻——云南鹤庆深钻前155m约800ka以来的岩芯进行孢粉研究，探讨了云南鹤庆盆地中更新世以来的植被演替与古气候变迁．研究表明鹤庆盆地周围山地的植被在约800kaBP至6．98kaBP之间经历了以松为主的针叶林、山地针阔叶混交林、寒温性针叶林的多次相互演替；从6．98kaBP开始，植被发生了转折性变化，森林植被迅速退化，以草本为主，此时开始受到人类活动的影响，人类活动表现在砍伐森林和种植农作物等方面．与植被演替相应的古气候可划分为五个大的阶段，包含多次冷暖、干湿旋回．

英文摘要：

Vegetational succession and climatic change since middle Pleistocene in Heqing Basin in Yunnan Province are discussed according to the sporopollen analysis for the top 155m length core and about 800 kaBP history from Heqing deep drilling core. This core is the first drilling core of Environmental Drilling Programme in Chinese continent, The results show that vegetation in the surrounding mountains in Heqing cathchment experienced many times changes among coniferous forest dominated by Pinus, montane coniferous and broadleaved mixed forest and cool temperate coniferous forest during the period about 800 kaBP to 6.98 kaBP, From 6.98 kaBP to today, vegetation has immensely changed, such as forest degraded quickly and vegetation dominated by herbs, when human activities have begun affecting vegetation. Human activities represent disafforestation and planting crops and so on, Climate corresponding to vegetation evolution may be divided into five stages and contains many times cool and warm, dry and humid gyrations since about 800 kaBP,