Preliminary Assessment of Streamflow Requirements for Habitat Protection for Selected Sites on the Assabet and Charles Rivers, Eastern Massachusetts
Preliminary Assessment of Streamflow Requirements for Habitat Protection for Selected Sites on the Assabet and Charles Rivers, Eastern Massachusetts
复制标题
马萨诸塞州东部阿萨贝特河和查尔斯河选定地点生境保护的水流要求的初步评估
DOI：
10.3133/ofr02340
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发表时间：
2002
影响因子：
3.2
通讯作者：
D. S. Armstrong
中科院分区：
文献类型：
--
作者：
G. Parker;D. S. Armstrong
摘要/ Abstract摘要：对Assabet河和Charles河流域的几个关键河段进行了河流量保护研究。R2Cross和wet - perimeter方法的平均流量要求分别为0.75立方英尺每秒每平方英里(ft（exp 3)/s/mi(exp 2)）和0.13英尺(exp 3)/s/mi（exp 2）。三个研究区位于阿萨比特河的支流上（丹福斯溪、大溪和伊丽莎白溪），两个位于查尔斯河的主干上，一个位于查尔斯河的支流上（Mine Brook）。R2Cross和wet - perimeter方法的优点是它们可以应用于非接触式位置。对1969年至1998年5个基本不变的流量流量表站的30年记录进行了变异性范围法分析。R2Cross和wet - Perimeter流量要求的中位数定义的流量范围，是指夏季低流量期月平均流量中位数的四分位数范围，该范围是由五个流量测量站的变异性范围方法分析定义的。5条河流的R2Cross流量要求的中位数与良好栖息地条件下平均年流量要求的中位数非常接近，即40%。在恶劣的栖息地条件下，湿周流量的中位数与年平均流量需求的中位数十分接近。Tennant和变异性范围方法需要连续的放电记录进行分析。
Abstract : Streamflow requirements for habitat protection were determined at several critical riffle reaches in the Assabet River and Charles River Basins. The R2Cross and Wetted-Perimeter methods yielded median streamflow requirements of 0.75 cubic feet per second per square mile (ft(exp 3)/s/mi(exp 2)) and 0.13 ft(exp 3)/s/mi(exp 2) , respectively. Three study reaches are on tributaries to the Assabet River (Danforth Brook, Great Brook, and Elizabeth Brook), two are on the mainstem of the Charles River, and one is on a tributary to the Charles River (Mine Brook). The strength of the R2Cross and Wetted-Perimeter methods is that they may be applied at ungaged locations. A Range of Variability Approach analysis was conducted on a common 30-year period of record from 1969 to 1998 for five mostly unaltered flow, streamgaging stations. The discharge range defined by the median R2Cross and Wetted- Perimeter streamflow requirements brackets the interquartile range for the median of monthly-mean flows during the summer low-flow period, as defined by the Range of Variability Approach analysis of five streamgaging stations. The median R2Cross streamflow requirement for the five riffles compares very closely to the median Tennant 40-percent of the mean annual flow requirement for good habitat condition. The median Wetted-Perimeter streamflow requirement compares closely to the median Tennant 10-percent of the mean annual-flow requirement for a poor habitat condition. Tennant and Range of Variability Approach methods require continuous discharge records for analysis.