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根据典型沼泽剖面14 C测年及其树木年轮校正、孢粉分析、粘土矿物X 衍射分析、泥炭植物残体鉴定和沉积物的化学元素聚集与迁移资料 ,研究了中全新世以来西辽河平原东部沼泽发育过程与古环境演变及其二者的关系。结果表明 ,位于生态环境过渡带、脆弱带的沼泽发生、发育对环境变化尤为敏感。中全新世早期以来 ,环境变化频繁 ,由此导致沼泽发育出现多次形成、发育、退化、消亡、再生循环变化。沼泽发育与古环境演变可划分为 6个时期 :中全新世早期沼泽孕育与萌芽发育期 ;中全新世中期沼泽旺盛发育期 ;中全新世中晚期沼泽间断发育期 ;中全新世晚期沼泽退化发育期 ;晚全新世早期沼泽复苏期 ;晚全新世晚期沼泽消亡期。距今 5 80 0年左右为本区全新世沼泽最早发育期。沼泽发育也遵循富营养沼泽长期发展的模式
Based on the 14 C dating of typical swamp sections and tree ring correction, sporopollen analysis, X-ray diffraction analysis of clay minerals, identification of peat plant residues and chemical element accumulation and migration of sediments, The Relationship Between Eastern Marsh Development Process and Paleoenvironment Evolution and Their Relationship. The results showed that the development and development of swamps located in the transitional zone and the fragile zone of the ecotope were particularly sensitive to environmental changes. Since the early Mid-Holocene, the environment has changed frequently, which led to many cycles of swamp development, development, degradation, demise and regeneration. Swamp development and palaeoenvironment evolution can be divided into six periods: the early Holocene marsh gestation and germination period; Mid-Holocene marsh vigorous development stage; mid-late Holocene marsh intermittent development stage; Late Mid-Holocene swamp degeneration Early Late Holocene swamp recovery period Late Late Holocene marsh disappearance period. About 580 years ago, it was the earliest Holocene swamp development in this area. Swamp development also follows the pattern of long-term development of eutrophic swamps