• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Intertidal and Subtidal Eelgrass (Zostera marina L.) Transplant Studies in San Diego Bay, California
【24h】

Intertidal and Subtidal Eelgrass (Zostera marina L.) Transplant Studies in San Diego Bay, California

机译：潮间带和潮下带的Eelgrass（Zostera marina L.）移植研究在加利福尼亚州圣地亚哥湾

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

摘要

Seagrass beds are frequently impacted by shallow water marine construction projects. A variety of seagrass transplant methods have been developed with varying degrees of success. Few studies however, have developed methods that are economical or applicable to large scale subtidal and intertidal transplants (i.e., greater than 0.5 hectare). This paper describes the development of a rapid and successful method of revegetating large areas using plugs of vegetative stock transplanted in biodegradable fiber pots. The use of fiber pots improves success by keeping the root-thizome-substrate complex intact, reducing damage during handling, providing a substrate for anaerobic sediment bacteria, and reducing the initial loss of transplants resulting from erosion. A 2.5 year pilot study involving a transplant of 46.5 sq m of subtidal vegetative stock demonstrated success of: 46% for 1,331 sq cm plugs, 35% for 410 sq cm plugs and less than 7% for 182 sq cm plugs. After 1.5 years, the number of emergent rhizomes from the two largest plugs sizes (i.e., 5.5 for 1,331 sq cm plugs and 6.3 for 410 sq cm plugs) were not significantly different (p<0.001). Based upon these findings a larger transplant project was conducted in March 1978 to vegetate approximately 1.62 hectares (i.e., 0.93 subtidal and 0.69 intertidal hectare) of recently deposited dredge material in San Diego Bay. The transplant utilized 12,000 plugs (324 sq cm ) planted on 0.6m centers in rows 1m apart and required 4,500 man hours. Transplant success after 7 months (one growing season) varied from 10-70% depending upon transplant site.

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