红树林种植-养殖耦合湿地生态修复效果评价

发布时间：2019-08-15 20:51

【摘要】：2014年08月以深圳海上田园红树林种植-养殖耦合系统为研究对象,从修复湿地的环境质量状况、生物群落结构及植物健康状况等方面,对3个不同修复年限(6,10和12a)样地的生态修复效果进行了定量评价.修复区水体和沉积物营养盐和重金属含量显著低于对照河道区,但各修复区池塘水质均未达到国家海水Ⅱ类水质标准,不能满足水产养殖用水要求;各修复区已修复红树林的生物群落结构,红树植物高度和胸径相比自然林修复比例低于35.5%,得分均处于"差"的等级;红树植物健康状况方面,叶片酶活含量和光合特征随修复年限呈现增大的趋势,但仍处于"差"的等级;6,10和12a修复样地综合评级得分为1.61、1.69和2.07,均为"中",表明修复工程并未对湿地退化生境带来显著恢复,仅适度改善了红树林植物的群落结构和健康状况.
[Abstract]:In August 2014, the ecological restoration effect of three different restoration years (6, 10 and 12 years) was quantitatively evaluated from the aspects of environmental quality, biological community structure and plant health status of Shenzhen offshore mangrove planting-culture coupling system. The contents of nutrients and heavy metals in water and sediment in the restoration area were significantly lower than those in the control river channel area, but the pond water quality in each repair area did not meet the national seawater class II water quality standard and could not meet the requirements of aquaculture water. The biological community structure of the restored mangroves in each restoration area, the mangrove plant height and DBH ratio were less than 35.5%, and the scores were all in the "poor" grade. In terms of mangrove plant health, leaf enzyme activity content and photosynthetic characteristics increased with restoration years, but were still in the grade of "poor". 6, the comprehensive rating scores of 10 and 12 years restoration plots were 1.61, 1.69 and 2.07, both of which were "medium", indicating that the restoration project did not bring significant restoration to wetland degraded habitats, but only moderately improved the community structure and health status of mangrove plants.
【作者单位】：清华大学深圳研究生院海洋科学与技术学部中山大学生命科学学院哈尔滨工业大学深圳研究生院土木与环境工程学院深圳出入境检验检疫局食品检验检疫技术中心中国科学院植物研究所植物分子生理学重点实验室清华大学地球系统科学系
【基金】：国家海洋局海洋公益性行业科研专项(201305021) 深圳市基础研究学科布局项目(JCYJ20150529164918736) 广东省自然科学基金资助项目(2015A030313831) 中国博士后科学基金面上资助项目(2015M581071)
【分类号】：X171.4;X826

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