Plant communities on anthropogenically disturbed sites on the Chukotka Peninsula, Russia
Plant communities on anthropogenically disturbed sites on the Chukotka Peninsula, Russia
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俄罗斯楚科奇半岛受人为干扰地区的植物群落
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
O. Sumina
中科院分区：
文献类型：
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作者：
O. Sumina
摘要。1986年和1990年对楚科奇半岛人为干扰地点的植被进行了调查。在2到20年前，102个地点的植被和土壤被铲平，重新种植。人工植被与自然苔原有很大的不同。植被覆盖总量减少，地衣缺失，苔藓组成变化，禾本科植物占主导地位。为了描述这些遗址上形成的人为群落的多样性，建立了植物区系分类。鉴定出4个协会，均属于青光眼毒科联盟。以Alopecurus alpinus为特征的另一个联盟被认为是在较冷的地点，但尚未被描述。与底物类型的关联是对应的。褐藻结合力仅在壤土基质上存在。黄花蒿和黄花蒿与碎石或砾石相连。禾本科结缔组织artagrostietum arundinaceae普遍分布于受干扰的生境中，并发生在各种基质类型上。
Abstract. The vegetation of anthropogenically disturbed sites on the Chukotka Peninsula was investigated in 1986 and 1990. 102 sites had been bulldozed free of vegetation and soil between 2 and 20 yr ago and revegetated. Anthropogenic vegetation differs considerably from natural tundra. The total plant cover decreases, lichens are absent, moss composition changes, and graminoids predominate. A floristic classification was developed in order to describe the diversity of anthropogenic communities formed on these sites. Four associations were distinguished, all belonging to the alliance Poion glaucomalacanthae. An additional alliance characterized by Alopecurus alpinus is suggested for colder sites, but it has not yet been described. There is a correspondence of associations to substrate types. The association Phippsietum algidae was found only on loam substrate. The Artemisietum glomeratae and Saxifragetum punctatae are connected with rubble or gravel. The graminoid association Arctagrostietum arundinaceae is generally widespread in disturbed habitats and occurs on a variety of substrate types.