四川环境
四川環境
사천배경
2011年
4期
50-55
,共6页
佟洪金%任春坪%钱骏%郑颖
佟洪金%任春坪%錢駿%鄭穎
동홍금%임춘평%전준%정영
成渝经济区%沉积物%重金属%赋存形态%生态风险
成渝經濟區%沉積物%重金屬%賦存形態%生態風險
성투경제구%침적물%중금속%부존형태%생태풍험
Chengyu Economic Zone%sediments%heavy metals%chemical speciation%ecological risk
以成渝经济区主要水系水体沉积物为研究对象,利用Eri（单一金属潜在生态风险因子）和RI（多金属潜在风险指数）等定量诊断工具分析沉积物中的重金属的潜在生态风险,为成渝经济区战略环评提供数据支撑。根据风险指标评价结果和重金属空间分布规律,将区域水系分为3种生态风险功能区。结合沉积物中重金属赋存形态,得出区域Cd的生态风险较大。
以成渝經濟區主要水繫水體沉積物為研究對象,利用Eri（單一金屬潛在生態風險因子）和RI（多金屬潛在風險指數）等定量診斷工具分析沉積物中的重金屬的潛在生態風險,為成渝經濟區戰略環評提供數據支撐。根據風險指標評價結果和重金屬空間分佈規律,將區域水繫分為3種生態風險功能區。結閤沉積物中重金屬賦存形態,得齣區域Cd的生態風險較大。
이성투경제구주요수계수체침적물위연구대상,이용Eri（단일금속잠재생태풍험인자）화RI（다금속잠재풍험지수）등정량진단공구분석침적물중적중금속적잠재생태풍험,위성투경제구전략배평제공수거지탱。근거풍험지표평개결과화중금속공간분포규률,장구역수계분위3충생태풍험공능구。결합침적물중중금속부존형태,득출구역Cd적생태풍험교대。
River sediments in Chengyu Economic Zone were analyzed in quantity by applying Eir（potential ecological risk factor of single heavy metal）and RI（multi-metal potential ecologic risk index）,which provided data to support strategy environmental assessment in this district.According to the results of ecological risk assessment and the space distribution of heavy metals,the regional water system is classified into three functional areas.Considering the chemical speciation of heavy metals in the sediments,it concluded that there was a high ecological risk of Cd.
