北京师范大学学报（自然科学版）2018，Vol.54Issue(1)：1-8,8.DOI:10.16360/j.cnki.jbnuns.2018.01.001
滨海盐沼植物种子扩散过程对潮流阻断的响应机制
Response of seed dispersal pattern to human reclamation in salt marshes
摘要
Abstract
The tidal wave is a major vector of seed dispersal in salt marshes.Seed movements driven by tidal waves along elevation gradient generate seed flow. Land reclamations in salt marshes change seed dispersal pattern by disturbing tidal wave.In the present work we observed the seed flow/flux of Suaeda salsa in low-,mid-and high-marshes,and established a quantitative framework to address seed dispersal pattern and pattern response to land reclamation projects.Suaeda salsa seeds in low and middle marsh zones were found to be transported land-forward and sea-forward by tidal wave.The upside of low marsh zones were the source of seed flow and the downside of middle marsh zones was the sink of seed flow.Land reclamations in high marshes shifted pattern of seed dispersal in all regions of salt marshes.This study therefore identified the potential threats of seed dispersal change to downside of middle marsh zones:seed flow changed from sink to source resulting in net seed outflow.关键词
盐地碱蓬/种子流/围垦/湿地高程/黄河三角洲Key words
Suaeda salsa/seedflow/land reclamation/saltmarsh elevation/Yellow River Delta分类
资源环境引用本文复制引用
谢湉,张树岩,李姗泽,王青,蔡燕子,施伟,崔保山..滨海盐沼植物种子扩散过程对潮流阻断的响应机制[J].北京师范大学学报（自然科学版）,2018,54(1):1-8,8.基金项目
国家自然科学基金重点资助项目(51639001) （51639001）
国家重点基础研究发展计划(973 计划)资助项目(2013CB430406) （973 计划）
国家水体污染控制与治理科技重大专项资助项目(2009ZX07209-008-03,2009ZX07209-008-04) （2009ZX07209-008-03,2009ZX07209-008-04）
