海洋地质与第四纪地质2018，Vol.38Issue(1)：1-10,10.DOI:10.16562/j.cnki.0256-1492.2018.01.001
自然环境变化与人类活动影响下的中小河流沉积物源汇过程
Sediment source-to-sink processes of small mountainous rivers under the impacts of natural environmental changes and human activities
摘要
Abstract
Small mountainous river systems (SMRS) play a key role in the global environmental changes and material cycle on the continental margin,and are subject to increasing human perturbation.Compared to large river systems,the SMRS are characterized by rapid and huge discharges,fast sediment transfer,and being easily influenced by extreme events and human activities,which make them more sensitive to global environmental changes.However,they have received less research attention relative to large rivers.Currently,the role of SMRS that play in the interactions among earth's spheres deserves more in-depth researches,as the concept of earth system science is put under consideration.In particular,the combination of real time and long term hydrographic observations in the fields with multi-disciplinary analytical approaches is urgently needed for better understanding the role of these rivers played on earth surface processes.The major research directions include the discharges and compositions of dissolved and particulate materials by the SMRS from continents and islands into the global oceans,under the impacts of natural environmental changes and human activities,and the difference in sediment sourceto-sink processes between the SMRS and large rivers.The comprehensive understanding of SMRS will definitely increase our recognition on earth surface processes and global sea-land interactions.关键词
中小河流/从源到汇/沉积物/自然环境/人类活动Key words
small mountainous rivers/source to sink/sediment/natural environmental change/human activities分类
天文与地球科学引用本文复制引用
杨守业,印萍..自然环境变化与人类活动影响下的中小河流沉积物源汇过程[J].海洋地质与第四纪地质,2018,38(1):1-10,10.基金项目
国家自然科学基金“河流与海洋沉积地球化学:末次冰盛期以来东海沉积中长江源物质的源汇过程与环境意义”(41225020) （41225020）
科技部“典型中小入海河流河口动力沉积地貌与环境本底数据调查”项目(2013FY112200) （2013FY112200）
上海市优秀学科带头人计划(14XD1403600) （14XD1403600）
