National Fish Habitat Action Plan (NFHAP) 2010 HCI Scores and Human Disturbance Data (linked to NHDPLUSV1) for Western Native Trout Initiative

This shapefile contains landscape factors representing human disturbances summarized to local and network catchments of river reaches for the Western Native Trout Initiative. This dataset is the result of clipping the feature class 'NFHAP 2010 HCI Scores and Human Disturbance Data for the Conterminous United States linked to NHDPLUSV1.gdb' to the boundary of the Western Native Trout Initiative. Landscape factors include land uses, population density, roads, dams, mines, and point-source pollution sites. The source datasets that were compiled and attributed to catchments were identified as being: (1) meaningful for assessing fish habitat; (2) consistent across the entire study area in the way that they were assembled; (3) representative of conditions in the past 10 years, and (4) of sufficient spatial resolution that they could be used to make valid comparisons among local catchment units. In this data set, these variables are linked to the catchments of the National Hydrography Dataset Plus Version 1 (NHDPlusV1) using the COMID identifier. They can also be linked to the reaches of the NHDPlusV1 using the COMID identifier. Catchment attributes are available for both local catchments (defined as the land area draining directly to a reach; attributes begin with "L_" prefix) and network catchments (defined by all upstream contributing catchments to the reach's outlet, including the reach's own local catchment; attributes begin with "N_" prefix). This shapefile also includes habitat condition scores created based on responsiveness of biological metrics to anthropogenic landscape disturbances throughout ecoregions. Separate scores were created by considering disturbances within local catchments, network catchments, and a cumulative score that accounted for the most limiting disturbance operating on a given biological metric in either local or network catchments. This assessment only scored reaches representing streams and rivers (see the process section for more details). Please use the following citation: Esselman, P., D.M. Infante, L. Wang, W. Taylor, W. Daniel, R. Tingley, J. Fenner, A. Cooper, D. Wieferich, D. Thornbrugh and J. Ross. (April 2011) National Fish Habitat Action Plan (NFHAP) 2010 HCI Scores and Human Disturbance Data (linked to NHDPLUSV1) for Western Native Trout Initiative. National Fish Habitat Partnership Data System. http://dx.doi.org/doi:10.5066/F7251G6T

本Shapefile存储了为西部本土鳟鱼倡议（Western Native Trout Initiative）整理的景观因子，这些因子表征了汇总至河段本地集水区与网络集水区的人类干扰情况。本数据集通过将关联至NHDPLUSV1.gdb的"覆盖美国本土48州的2010年国家鱼类栖息地行动计划（NFHAP）栖息地条件指数（HCI）得分及人类干扰数据集"要素类裁剪至西部本土鳟鱼倡议的研究边界得到。景观因子涵盖土地利用类型、人口密度、道路、水坝、矿山以及点源污染点位。经整理并赋值至集水区的源数据集满足以下标准：(1) 可有效用于鱼类栖息地评估；(2) 在整个研究区内的整合方式保持一致；(3) 能够反映过去10年的环境状况；(4) 空间分辨率足够高，可实现本地集水区单元间的有效对比。本数据集通过COMID标识符，将上述变量与国家水文数据集增强版第1版（NHDPlusV1）的集水区相关联，同时也可通过COMID标识符与NHDPlusV1的河段相关联。集水区属性分为两类：本地集水区（指直接向河段汇水的陆地区域，属性前缀为"L_"）与网络集水区（指所有向该河段出口汇水的上游集水区，包含河段自身的本地集水区，属性前缀为"N_"）。本Shapefile还包含基于生物指标对全生态区人为景观干扰的响应性生成的栖息地条件得分。研究分别生成了基于本地集水区干扰、网络集水区干扰的栖息地得分，以及综合得分：综合得分考量了对给定生物指标产生最强限制作用的人为干扰（无论该干扰来自本地集水区还是网络集水区）。本次评估仅对代表溪流与河流的河段进行打分（详细流程参见方法部分）。请使用以下引用格式：Esselman, P.、D.M. Infante、L. Wang、W. Taylor、W. Daniel、R. Tingley、J. Fenner、A. Cooper、D. Wieferich、D. Thornbrugh与J. Ross。(2011年4月) 《面向西部本土鳟鱼倡议的、关联至NHDPLUSV1的2010年国家鱼类栖息地行动计划（NFHAP）栖息地条件指数得分及人类干扰数据集》。国家鱼类栖息地伙伴关系数据系统。http://dx.doi.org/doi:10.5066/F7251G6T