title: [Pollen combination and paleo-environment of Momoge Lake since 1500 years before].
abstract: Based on the pollen combination, 14C dating, and depositional facies analysis of Momoge profile in Zhenlai County, Jilin Province, three pollen belts were divided. The results showed that Momoge Lake was formed by blocked paleo-river course depression 1500 years ago, which included three development stages, i.e., the period when river converted into lake, the early period of lake development, and the steady period. Its corresponding plant types were Artemisia-Chenopodium grassland, Artemisia-Chenopodium grassland accompanied by Betula, and meadow grassland, and its paleo-climate was dry-cold, warm-dry, and then cool-wet, and there was a warm-dry tendency in recent fifty years.
authors.affiliation: Geography Department Institute of Grassland Engineering, Northeast Normal University, Changchun 130024, China. Jiedongmei@nenu.edu.cn
authors.forename: Dongmei
authors.initials: D
authors.lastname: Jie
authors.forename: Shengzhong
authors.initials: S
authors.lastname: Wang
authors.forename: Jixun
authors.initials: J
authors.lastname: Guo
authors.forename: Jinfu
authors.initials: J
authors.lastname: Lu
authors.forename: Jin
authors.initials: J
authors.lastname: Li
mesh_terms: D002681:China; D003080:Cold Temperature; D017753:Ecosystem; D005618:Fresh Water; D019684:Magnoliopsida / Q000254:growth & development*; D010163:Paleontology / Q000379:methods; D011058:Pollen; D012494:Sampling Studies; D012987:Soil / Q000032:analysis*; D013997:Time Factors
chemical_list: D012987:Soil