陸域から河川水や海底湧出地下水を介して供給される物質は沿岸海域の生物生産過程に不可欠である．本セッションでは，水循環を介した陸域と海域の相互作用に主眼を置く．生態系の連環，陸域および沿岸域の水循環，水産資源，生物多様性等に関する知見を学際的に取り上げ，沿岸域の高い生物生産力や生物多様性を生み出す仕組みを陸海相互作用の観点から総合的に議論することを目的とする．陸・沿岸海域の水・物質循環，沿岸の水産資源・生物多様性，沿岸生態系の連環，干潟の生態系機能と生物生産性などに関する研究発表を歓迎する． なお，本セッションと連携開催を希望するセッション「沿岸海洋生態系－2. サンゴ礁・海草藻場・マングローブ」においては，サンゴ礁，海草藻場，マングローブ域など浅海域の底生生態系を主対象とし，水循環以外の物質循環を含めた生物地球化学過程を広く扱う．物質循環の季節・空間変動パターンや生態系サービスの多様性に着眼することにより，本セッションとの区別を明確化する．共通した情報が多いこれら2つのセッションに参加することにより，研究者は重要な情報を得ることができる．

Substances from land which are brought by river and/or submarine groundwater discharge are important for the process of biological production in coastal areas. This session focuses on land-ocean interactions through water cycle. The aim of this session is to create interdisciplinary discussions on the research of connectivity of ecosystems, water cycles in terrestrial and coastal areas, fishery resources and biodiversity. Comprehensive discussion on the mechanisms that promote productivity and biodiversity in coastal ecosystems will be made from the viewpoint of land-ocean interactions. Presentations on water-material cycle in terrestrial and coastal areas, fishery resources, biodiversity and connectivity of the ecosystems are encouraged. A companion session proposed as "Coastal Ecosystems - 2. Coral reefs, seagrass meadows, and mangroves" focuses on benthic communities in shallow-water ecosystems such as coral reefs, seagrass meadows and mangroves and is dedicated to promote researches on comprehensive assessment and monitoring of ecosystem functions and development of effective means for conservation and restoration. Main focuses of these two sessions are different. However, there are much of information that covers both sessions. Scientists who work on the related field will be able to obtain information and share them with other scientists if they attend to both of these sessions.