CAJ | 학술논문

依据国家海洋环境监测中心2009~2013年测得的数据和资料,对河北昌黎生态监控区潮间带生物的种类组成、栖息密度、生物量、优势种以及多样性指数进行统计运算,分析该监控区5年时间尺度的潮间带生物多样性变化趋势。结果表明：监控区共鉴定出潮间带生物5门,包括节肢动物、环节动物、软体动物、棘皮动物和脊索动物,共17科,26种,类型较少,年际种数呈逐年下降趋势；栖息密度与生物量较低,保持低潮带>中潮带>高潮带的特征；优势种群变化显著,节肢动物、环节动物和软体动物交替出现,优势种数逐年减少,优势度上升,对其他物种抑制作用增强；均匀度指数(J)呈微上升趋势,变化范围为0.64~0.81,状况良好,物种多样性指数(H′)和丰富度指数(dMa)水平较低,分别为0.81~3.23和0.48~3.96,生物多样性水平呈下降态势。
의거국가해양배경감측중심2009~2013년측득적수거화자료,대하북창려생태감공구조간대생물적충류조성、서식밀도、생물량、우세충이급다양성지수진행통계운산,분석해감공구5년시간척도적조간대생물다양성변화추세。결과표명：감공구공감정출조간대생물5문,포괄절지동물、배절동물、연체동물、극피동물화척색동물,공17과,26충,류형교소,년제충수정축년하강추세；서식밀도여생물량교저,보지저조대>중조대>고조대적특정；우세충군변화현저,절지동물、배절동물화연체동물교체출현,우세충수축년감소,우세도상승,대기타물충억제작용증강；균균도지수(J)정미상승추세,변화범위위0.64~0.81,상황량호,물충다양성지수(H′)화봉부도지수(dMa)수평교저,분별위0.81~3.23화0.48~3.96,생물다양성수평정하강태세。
According to the monitoring data and information obtained from National Marine Environmental Monitoring Center, the species composition, density, biomass, dominant species andthe trend of biodiversity variation in the ecology-monitoring area of Changli in Hebei Province from 2009 to 2013 were analyzed. The results showed that 5 phylum including arthropods, annelid, mollusks, echinodermata and chordata, totally 17 family and 26 species were identified. The types and number of species were declined annually. The density and biomass were consistent with the characteristics of low tidal zone>medium tidal zone>high tidal zone. The dominant species were changed significantly, by which arthropods, annelid and mollusks appearing alternately. As the decreasing of the number of dominant species, the dominance index went up which suppressed the other species. The Shannon-Wiener’s index(H’), Margalef’s richness index (dMa) were low, and their variation ranges were 0.81~3.23 and 0.48~3.96, respectively. The variation range of Pielou’s evenness index (J) was0.64~0.8, which presented a miniature uptrend and stable status.