广西科学2026，Vol.33Issue(1)：35-44,10.DOI:10.13656/j.cnki.gxkx.20240428.001
滨海电厂温排水温升对红树林分布扩散的影响
Effects of Temperature Rise of Thermal Effluent from a Coastal Power Plant on the Distribution and Spread of Mangroves
摘要
Abstract
Temperature is a major environmental determinant of the geographical distribution of mangrove plants,while the effects of temperature rise of thermal effluent from a coastal power plant on the distribution and spread of mangroves remain unclear.The reference comparison method and baseline comparison method were employed to investigate the historical dynamic distribution of mangroves in the impacted forest area and the reference forest area.The changes in landscape pattern,typical mangrove patches,driving factors and the influencing degree were analyzed.Furthermore,the effects of temperature rise of thermal effluent after operation of No.5 and No.6 sets of the third phase of the Guangxi Fangchenggang Nuclear Power Plant in the future on the distribution and spread of mangroves in the reference forest area were predicted.The re-sults showed that the existing mangrove area in the reference forest area was 165.64 hm2,distributed in the temperature rise zones of<0.5,0.5-1.0,1.0-2.0,2.0-3.0 and 3.0-4.0℃.During 2007-2022,the net loss of mangrove area was 24.93 hm2,with a change rate of-13.08%and an annual average of-0.87%.Anthropogenic activities such as land reclamation caused a larger loss of mangrove area in the reference forest area,while there were different degrees of natural mangrove spread in all temperature rise zones.The man-grove area in the impacted forest area was 28.31 hm2,and those distributed in the 1.0-2.0 and 2.0-3.0℃temperature rise zone were 26.85 hm2 and 1.46 hm2,respectively.During 2007-2022,the mangrove area in the impacted forest area first decreased and then increased,with a natural increase of 4.49 hm2 and a decrease of 1.72 hm2 due to anthropogenic activities such as land reclamation.The net increase was 2.92 hm2,with a change rate of 11.50%and an annual average of 0.77%.It was predicted that the thermal effluent after the operation of the third phase of the Guangxi Fangchenggang Nuclear Power Plant would not have negative effect on the natural growth and spread of mangroves within the 1.0℃temperature rise zones.The findings provide a reference for the future evaluation and demonstration of the effects of coastal power plants on man-groves and related research.关键词
滨海电厂/温排水/红树林/分布Key words
coastal power plant/thermal effluent/mangrove/distribution分类
海洋科学引用本文复制引用
李梦,莫珍妮,赖廷和,何斌源,黄中坚,马日宇..滨海电厂温排水温升对红树林分布扩散的影响[J].广西科学,2026,33(1):35-44,10.基金项目
广西重点研发计划项目(桂科AB21076016,桂科AB21220064)资助. （桂科AB21076016,桂科AB21220064）
