Development of Ohio's GIS-based wetlands inventory
Development of Ohio's GIS-based wetlands inventory
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DOI：
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发表时间：
1994
影响因子：
3.9
通讯作者：
Gi-Chul Yi;D. Risley;M. Koneff;C. Davis
中科院分区：
文献类型：
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作者：
Gi-Chul Yi;D. Risley;M. Koneff;C. Davis
在俄亥俄州最初的2640万英亩土地中，有500多万英亩被归类为含氢土壤或含有含氢夹杂物，这是湿地的一个标志。今天，大约80万英亩，不到历史湿地的20%，仍然保持不变。俄亥俄州的湿地退化的遗产反映了全国的趋势，内陆湿地损失归因于农业，住宅和商业开发以及其他用途。今天，该州剩余的湿地受到土地开发、排水、填埋、农业转化和公路建设等活动的威胁。对湿地的威胁是多种多样和复杂的。虽然改变湿地的压力越来越大，但公众越来越认识到湿地的价值，不仅是作为水禽、鱼类和其他野生动物的栖息地，而且还具有提高水质、地下水补给、减轻洪水、美观和娱乐用途等功能。资源管理者需要诸如重要资源的位置、大小、分布和丰度等信息，以及邻近土地使用的分类，以做出明智的规划决策。建立一个描述湿地这些特征的数据库成为合乎逻辑的第一步。遥感已成为研究湿地生态系统的重要工具。
Of Ohio's original 26.4 million acres, more than five million are classified as hydric soils or having hydric inclusions, a condition indicative of wetlands. Today, about 800,000 acres, less than 20 percent of the historical wetlands, remain unaltered (5). Ohio's legacy of wetland degradation reflects the national trend with respect to inland wetland losses attributable to agricultural, residential, and commercial development as well as other uses. Today, the state's remaining wetlands are threatened by such activities as land development, draining, land-filling, conversion to agriculture, and highway construction. The threats to wetlands are varied and complex. While pressures to convert wetlands mount, there is a growing public awareness of the value of wetlands, not only as habitat for waterfowl, fish, and other wildlife, but also for such functions as water quality enhancement, groundwater recharge, flood abatement, and aesthetics and recreational uses. Resource managers require information such as location, size, distribution, and abundance of important resources as well as categorization of adjacent land-uses to make wise planning decisions. Creation of a data base describing these characteristics of wetlands becomes a logical first step. Remote sensing has become an important tool in wetland …