...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Hydrological Processes >Little River Experimental Watershed, a keystone in understanding of coastal plain watersheds
【24h】

Little River Experimental Watershed, a keystone in understanding of coastal plain watersheds

机译：Little River实验流域，一个凯斯通在理解沿海平原流域

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The US Department of Agriculture-Agricultural Research Service Southeast Watershed Research Laboratory (SEWRL) initiated a hydrologic research program on the Little River Experimental Watershed (LREW) in 1967. Long-term (52 years) streamflow data are available for nine sites, including rainfall-runoff relationships and hydrograph characteristics regularly used in research on interactive effects of climate, vegetation, soils, and land-use in low-gradient streams of the US EPA Level III Southeastern Plains ecoregion. A summary of prior research on the LREW illustrates the impact of the watershed on building a regional understanding of hydrology and water quality. Climatic and streamflow data were used to make comparisons of scale across the nine nested LREW watersheds (LRB, LRF, LRI, LRJ, LRK, LRO, LRN, LRM, and LRO3) and two regional watersheds (Alapaha and Little River at Adel). Annual rainfall for the largest LREW, LRB, was 1200 mm while average annual streamflow was 320 mm. Annual rainfall, streamflow, and the ratio between annual streamflow and rainfall (Sratio) were similar (alpha = 0.05) across LREWs LRB, LRF, LRI, LRJ, LRK, and LRO. While annual rainfall within the 275 ha LRO3 was found to be similar to LRO and LRM (alpha = 0.05), annual streamflow and Sratio were significantly different (alpha = 0.05). Comparisons of annual rainfall, streamflow, and Sratio between LRB and the regional watersheds indicated no differences (alpha = 0.05). Based upon this analysis, most regional watersheds shared similar hydrologic characteristics. LRO3 was an exception, where increases in row crops and decreases in forest coverage resulted in increased streamflow. LREW data have been instrumental in building considerable scientific understanding of flow and transport processes for these stream systems. Continued operation of the LREW hydrologic network will support hydrologic research as well as environmental quality and riparian research programs that address emerging and high priority natural resource and environmental issues.
机译：美国农业 - 农业研究所东南部的研究实验室（SEWRL）于1967年启动了一条关于小河实验流域（LREW）的水文研究计划。长期（52岁）流出数据可用于九个网站，包括降雨 - 在美国EPA级别东南部平原eCOREGION的低梯度流中，定期用于研究气候，植被，土壤和土地利用的互动影响的关系和水文的特征。对LREW的先前研究摘要说明了流域对建立区域性和水质的区域了解的影响。气候和流流程数据用于在九个嵌套Lrew流域（LRB，LRF，LRI，LRJ，LRK，LRO，LRN，LRM和LRO3）以及两个区域流域（阿拉帕和亚德尔的小河）进行比较。最大的LREW，LRB的年降雨量为1200毫米，而平均年度流流量为320毫米。年降雨量，流出和降雨（SRATIO）之间的比例在LREWS LRB，LRF，LRI，LRJ，LRK和LRO之间具有相似（Alpha = 0.05）。在发现275公顷LRO3内的年降雨量与LRO和LRM（alpha = 0.05）相似，年度流流和SRATIO显着不同（alpha = 0.05）。年降雨量，流出和地区流域之间的年降雨量和SRATIO的比较表明没有差异（alpha = 0.05）。基于这种分析，大多数区域流域都有类似的水文特征。 LRO3是一个例外，其中行作物的增加和森林覆盖率的减少导致流出的流出增加。 LREW数据一直在为这些流系统的流量和运输过程构建相当大的科学了解。 LREW水文网络的持续运营将支持水文研究以及环境质量和河岸研究计划，这些计划解决了新兴和高优先级的自然资源和环境问题。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号