canal ditch

This is the feature service linked to the survey123 survey used by those surveying diversions and their structures for aquatic organism passage within inland waters (non-tidal). Diversions often contain a low-head dam type of structure and a diversion ditch/channel. This form is designed to collect information on both types of elements of a water diversion. The data collected within this form is used in SARP's Aquatic Barrier Prioritization Tool (https://connectivity.sarpdata.com).  This data layer can be used to better understand the specific information associated with fish passage including photos for points surveyed<div><br /></div><div>Water diversions are points along a stream where water is diverted from the free flowing stream into nearby fields. To divert water, irrigators will dig a ditch along the stream and often build an in stream dam/structure to impound the water so it flows into the ditch. Not only can fish and other organisms not pass upstream, but they can get caught in ditches and be trapped, unable to get out. These diversions present issues for species in aquatic systems and identifying their location aids in identifying potential restoration projects and landowner partnership opportunities.</div>

本要素服务关联了用于内陆（非潮汐）水域内水生生物洄游通道相关导流设施及其结构勘测的Survey123调查。此类导流工程通常包含低水头坝体结构与导流沟渠/河道。本表单旨在采集导流工程两类组成要素的相关信息。本表单采集的数据将应用于SARP水生障碍优先级评估工具（https://connectivity.sarpdata.com）。该数据图层可用于更全面地掌握与鱼类洄游相关的具体信息，包括勘测点位的实拍影像资料。
导流工程指沿天然河道将水流从自由流动的河道引入周边农田的点位。为实现引水作业，灌溉者会沿河道开挖沟渠，并常修建河道内坝体或构筑物以拦蓄水流，使其流入沟渠。此类设施不仅会阻断鱼类及其他水生生物的上游洄游通道，还可能导致生物被困于沟渠之中，无法脱困。此类导流工程会对水生生态系统中的物种构成威胁，而明确其点位则有助于识别潜在的生态修复项目，以及与土地所有者开展合作的契机。