首页> 外文期刊>Journal of the American Water Resources Association >CONTROL OF STREAMBANK EROSION DUE TO BED DEGRADATION WITH VEGETATION AND STRUCTURE1
【24h】

CONTROL OF STREAMBANK EROSION DUE TO BED DEGRADATION WITH VEGETATION AND STRUCTURE1

机译:用植被和STRUCTURE1控制河床退化导致的河岸侵蚀

获取原文
获取外文期刊封面目录资料

摘要

ABSTRACT:Combinations of vegetation and structure were applied to control streambank erosion along incised stream channels in northwest Mississippi. Eleven sites along seven channels with contributing drainage areas ranging from 12–300 km2were used for testing. Tested configurations included eroding banks protected by vegetation alone, vegetation with structural toe protection, vegetation planted on re‐graded banks, and vegetation planted on regraded banks with toe protection. Monitoring continued for up to 10 years, and casual observation for up to 18 years. Sixteen woody and 13 nonwoody species were tested. Native woody species, particularly willow, appear to be best adapted to stream‐bank environments. Sericea lespedeza and Alamo switchgrass were the best nonwoody species tested. Vegetation succeeded in reaches where the bed was not degrading, competition from kudzu was absent, and bank slopes were stabilized by grading or toe protection. Natural vegetation invaded planted and unplanted stable banks composed of fertile soils. Designs involving riprap toe protection in the form of a longitudinal dike and woody vegetation appeared to be most cost‐effective. The exotic vine kudzu presents perhaps the greatest long‐term obstacle to restoring stable, functional riparian zones along incised channels in our region. (KEY TERMS: vegetation; streambank protection; bioengineering; stream restoration; channel incision; ripar
机译:摘要: 在密西西比州西北部,采用植被和结构相结合的方式控制了沿切口河道的河岸侵蚀。沿7条河道的11个地点,贡献的排水面积从12-300 km2不等。测试的配置包括仅由植被保护的侵蚀堤岸、具有结构性脚趾保护的植被、在重新分级的河岸上种植的植被以及在重新分级的河岸上种植的具有脚趾保护的植被。监测持续了长达 10 年,偶然观察持续了长达 18 年。测试了16种木本植物和13种非木本植物。本地木本物种,尤其是柳树,似乎最能适应河岸环境。Sericea lespedeza 和 Alamo 柳枝稷是测试的最佳非木本树种。植被成功地到达了床没有退化的地方,没有葛根的竞争,并且通过平整或脚趾保护来稳定河岸坡度。自然植被侵入了由肥沃土壤组成的已种植和未种植的稳定河岸。以纵向堤坝和木本植被的形式进行防波堤头保护的设计似乎是最具成本效益的。外来藤本植物葛根可能是我们地区沿切开的河道恢复稳定、功能性河岸带的最大长期障碍。(关键术语:植被、河岸保护、生物工程、河道恢复、河道切口、河岸

著录项

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