Substrate damage and recovery after giant clam shell mining at remote coral reefs in the southern South China Sea

作     者：ZHOU Shengnan SHI Qi YANG Hongqiang ZHANG Xiyang LIU Xiaoju TAN Fei YAN Pin 周胜男;施祺;杨红强;张喜洋;刘小菊;谭飞;阎贫

作者机构：Key Laboratory of Ocean and Marginal Sea GeologySouth China Sea Institute of OceanologyCASGuangzhou 510301China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)Guangzhou 511458China Nansha Marine Ecological and Environmental Research StationCASSansha 573199HainanChina University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Journal of Geographical Sciences》 (地理学报（英文版）)

年 卷 期：2021年第31卷第11期

页      面：1655-1674页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 08[工学] 0824[工学-船舶与海洋工程] 

基　　金：Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou),No.GML2019ZD0206,No.GML2019ZD0104 National Science&Technology Fundamental Resources Investigation Program of China,No.2018FY100103 The Strategic Priority Research Program of the Chinese Academy of Sciences,No.XDA13010103 Special Support Program for Cultivating High-level Talents in Guangdong Province,No.2019BT02H594 National Natural Science Foundation of China,No.41776128,No.U1901217 

主　　题：giant clam shell mining substrate components micro-relief reef flat South China Sea 

摘      要：Giant clam shell mining(GCSM),a unique phenomenon occurring at remote coral reefs in the southern South China Sea(SCS),forms striking scars on the reef flats and damages the reef flat *** image analyses at three times(2004.02.02,2014.02.26,and 2019.04.10)and in situ surveys at Ximen Reef,a representative site that has experienced GCSM,we quantified the GCSM-generated substrate damage and the corresponding *** was estimated to have occurred sometime between 2012 and 2014,causing reduction in live coral subarea and formation of micro-relief as trenches and ***-generated damage was restricted to the reef *** GCSM,coral and algae subarea increased,and the trenches and mounds tended to be filled and eroded,representing a natural recovery of the *** legal prohibition on human disturbances at the coral reefs contributed to substrate recovery at Ximen *** case also implied that recovery of the other coral reefs that suffered from GCSM is possible.