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根据中 -美合作协议 ,研究北极巴罗地区 2 0 0 0年以来气候和环境变化史 ,张青松和唐领余于 1998年 5 - 6月到阿拉斯加巴罗地区进行了为期 4周的野外考察。除湖泊打钻外 ,还在巴罗地区采集了表土花粉和植物标本。本文是研究北极巴罗 (Barrow)地区 12种冻原植物的花粉形态 ,它们的形状有球形、近球形、扁球形、茧形和四面体形 ,其萌发孔有三孔沟 ,三沟 ,二合沟以及散孔等类型。花粉具辐射对称和两侧对称两种类型。这些花粉的植物体是北极地区常见的植物 ,分属于 10个科 ,除三种为小灌木外 ,大多数为多年生或一年生草本植物。这些冻原植物花粉形态的研究为恢复北极地区古植被和古气候的研究 ,提供了有价值的对比资料和依据。
According to the Sino-U.S. Cooperation agreement, the history of climate and environment changes in the Barrot area of the North Pole since 2000 was studied. Zhang Qingsong and Tang received more than four weeks’ fieldwork in the Barrow area of Alaska in May-June 1998. In addition to drilling in lakes, topsoil pollen and plant specimens were also collected in the Baro area. In this paper, we study the pollen morphology of 12 species of tundra plants in the Barrow region of the Arctic. They are spherical, nearly spherical, oblate, cocoon-shaped and tetrahedron-shaped. The germination holes have three holes, three grooves, And scattered holes and other types. Pollen has a symmetrical radiation and bilateral symmetry of two types. These pollen plants are common in the Arctic, belonging to 10 families, except for three small shrubs, most of them perennial or annual herbs. The research on the pollen morphology of these tundra plants provides valuable comparative data and evidences for the restoration of paleopy and paleoclimate research in the Arctic.