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以小黑山岛临近海域为研究对象,利用生境适宜性指数(habitat suitability index,HSI)模型选划适宜刺参(Stichopus japonicas)、魁蚶(Scapharca broughtonii)和紫贻贝(Mytilus edulis)增殖修复的区域。分别针对每个修复物种筛选出7个生境评价因子,结合专家赋值法和层次分析法确定每个评价因子的权重,利用GIS空间分析模块将现状调查数据进行插值、重分类和栅格计算,绘制研究区域目标种群生境适宜性地图。结果表明:对于刺参和紫贻贝,研究区域均适宜其生长繁殖,同一物种,相同季节在空间上无站位差异,但各季节的生境适宜性分区变化明显;对于魁蚶来说,东北部海域较适宜增殖,其次为西部海域,四季均以较适宜生境为主,仅冬季出现基本适宜生境。水温是造成季节差异的主要因素,底质类型则是引起生境站位差异的重要原因。可为后续的生物多样性保育和生态修复提供基础资料参考。
In this study, the habitat suitability index (HSI) model was used to select the appropriate species of Stichopus japonicas, Scapharca broughtonii and Mytilus edulis Area. Seven habitat evaluation factors were screened for each remediation species, the weight of each evaluation factor was determined by combining expert assignment and AHP, and GIS spatial analysis module was used to interpolate, reclassify and grid computing the current survey data and draw To study the habitat suitability map of regional target population. The results showed that for the sea cucumber and purple mussel, the study area is suitable for growth and reproduction, the same species, the same season in the space without station differences, but the seasonal habitat suitability changes significantly; for Kui, Northeast The sea area is more suitable for proliferation, followed by the western waters, the four seasons are more suitable habitat, only in winter the basic suitable habitat. Water temperature is the main factor that causes the seasonal difference, and the type of sediment is the important reason that causes the difference of habitat position. It can provide the basic information for the subsequent conservation and ecological restoration of biodiversity.