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首页> 外文OA文献 >The Monitoring and Assessment Plan (MAP) Greater Everglades Wetlands Module- Landscape Pattern- Ridge, Slough, and Tree Island Mosaics: Year 1 Annual Report
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The Monitoring and Assessment Plan (MAP) Greater Everglades Wetlands Module- Landscape Pattern- Ridge, Slough, and Tree Island Mosaics: Year 1 Annual Report

机译：监测和评估计划（map）大沼泽地湿地模块 - 景观格局 - 里奇，斯劳和树岛马赛克：第1年年度报告

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摘要

In the current managed Everglades system, the pre-drainage, patterned mosaic of sawgrass ridges, sloughs and tree islands has been substantially altered or reduced largely as a result of human alterations to historic ecological and hydrological processes that sustained landscape patterns. The pre-compartmentalization ridge and slough landscape was a mosaic of sloughs, elongated sawgrass ridges (50-200m wide), and tree islands. The ridges and sloughs and tree islands were elongated in the direction of the water flow, with roughly equal area of ridge and slough. Over the past decades, the ridge-slough topographic relief and spatial patterning have degraded in many areas of the Everglades. Nutrient enriched areas have become dominated by Typha with little topographic relief; areas of reduced flow have lost the elongated ridge-slough topography; and ponded areas with excessively long hydroperiods have experienced a decline in ridge prevalence and shape, and in the number of tree islands (Sklar et al. 2004, Ogden 2005).
机译：在当前管理的大沼泽地系统中，由于人为改变了维持景观格局的历史性生态和水文过程而做出的改变，使锯齿草的山脊，泥沼和树木岛的预先排水，图案化的镶嵌大大改变或减少了。分隔前的山脊和泥沼景观是由泥沼，细长的锯齿草山脊（宽50-200m）和树岛组成的马赛克。脊和泥沼以及树木岛在水流方向上拉长，脊和泥沼的面积大致相等。在过去的几十年中，在大沼泽地的许多地区，山脊低谷的地形起伏和空间格局已经退化。营养丰富的地区已被香蒲所控制，地形起伏很小。流量减小的区域失去了拉长的脊-凹地形。以及水文期过长的池塘地区的山脊患病率和形状以及树木岛的数量都下降了（Sklar等，2004； Ogden，2005）。

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