Abstract

Title: The comparable analysis of wetland ecosystem carbon sequestration values in Sanjiang Plain based on patches level

Authors: Jing Zhang, ¹, Qisheng Tang²

State Key Laboratory of Estuarine and Coastal Research East China Normal University
Yellow Sea Fisheries Research Institute

Abstract: China GLOBEC began the strategic study in 1994 and a science plan for ecosystem dynamics study of the China seas has been developed in late 1990s, followed by the implementation of China GLOBEC Nation Programs step by step. So far China GLOBEC has been successful in promoting three research programs (China GLOBEC I: “Ecosystem Dynamics and Sustainable Utilization of Marine Living Resources in the Bohai Sea”, 1997-2000; China GLOBEC II: “Ecosystem Dynamics and Sustainable utilization of Marine Living Resources in the East China Sea and Yellow Sea”, 1999-2004; and China GLOBEC III: “Key Processes and Sustainable Mechanisms of Ecosystem Food Production in the Coastal Ocean of China”, 2006-2010).

China GLOBEC I and II focus on the study of the ecosystem structure and build a frame of China coastal ocean ecosystem dynamics studies in theory with characteristics of continental shelf and shallow water. The scientific goal of China GLOBEC is to identify the impacts of anthropogenic forcing and climate change on the ecosystems of the coastal oceans of China. Six key scientific questions are identified on (1) food web trophodynamics of key resource species; (2) population dynamics of key zooplankton species; (3) ecological effects of key physical processes; (4) cycling and source of biogenic elements; (5) pelagic and benthic coupling, and (6) microbial loops contribute to main food web. Now China GLOBEC has come into its third phase as the combined GLOBEC/IMBER national program. The new program is paying attention to the ecosystem service and goods giving a priority to the marine biogeochemical cycles and key processes of end-to-end food web in the China seas. The four major scientific questions arising from GLOBEC III are (1) supporting role of main biogeochemical processes of food production; (2) key physical forcing of biogenic element cycle and supplement; (3) primary production coupling with main biogeochemical processes; and (4) food web trophodynamics of major biological functional groups. The research activities mainly aim at some unique sub-ecosystems in the Yellow Sea and the East China Sea expected to make breakthroughs in some of the frontier scientific fields like the key processes of food production and sustainable utilization mechanisms of marine living resources in the coastal & shelf ecosystems.

All these studies and their integration mentioned above are very important to understand the resources and environment of the ecosystem in the region. The following scientific progress were highlighted mainly to date.

Spring phytoplankton bloom process in the absence of vertical water column stratification is found the cold mass area in the Yellow Sea.
Advance the knowledge of mechanisms of the formation and development of coastal hypoxia off the Changjiang Estuary.
Function group becomes hot point on zooplankton study in the program.
New proof of impact of climate change to fluctuation cycle of living marine resources in the North China Sea.
Multiprinciple ecological studies provide basic information to eco-region in the Yellow Sea and East China Sea.
Building new production demonstration on the basis of polyculture model in marine bay area.

The new findings above not only let us obtain new scientific knowledge but also consider ecosystem service and new management strategy under ecosystem approach in the Yellow Sea and the East China Sea.