研究报告
朱金格,刘鑫,邓建才,张海涛,彭俊翔.太湖西部环湖河道悬浮物输移速率及变化特征[J].环境科学学报,2018,38(9):3682-3687
太湖西部环湖河道悬浮物输移速率及变化特征
- Suspended solids transport rate of the rivers around western Lake Taihu
- 基金项目：国家自然科学基金（No.51609235）；江苏省自然科学基金（No.BK20151063）；中国科学院重点部署项目（No.KZZD-EW-10-01）
- 作者
- 单位
- 朱金格
- 中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室, 南京 210008
- 刘鑫
- 中国科学院大学, 北京 100049
- 邓建才
- 中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室, 南京 210008
- 张海涛
- 中国科学院大学, 北京 100049
- 彭俊翔
- 中国科学院大学, 北京 100049
- 摘要：悬浮物（SS）的外部输入对湖泊SS总量变化及物质循环具有重要影响，本文基于逐月的水文与悬浮物同步观测，研究了太湖西部主要河道的SS输移速率及其时空变化.结果表明，太湖入湖SS浓度年内变化较为稳定，而出湖浓度在冬季（12月、1月、2月）高于同期入湖浓度，其他月份出湖浓度下降并低于同期入湖浓度.太湖西部SS主要通过城东港和百渎港进入太湖，年平均输入速率占太湖西部总输入速率的38.7%和12.1%；通过长兜港、太浦河和大钱港输出太湖，年平均输出速率分别占总输出速率的44.9%、24.8%和11.9%.SS总输移速率存在较大的年内变化，净输入速率为1289.5 g·s-1.
- Abstract：The external input of suspended solids (SS) has an significant influence on the total SS in Lake Taihu. In this study, the spatial and temporal of transport rate of SS in the rivers around western Lake Taihu was studied by 12 months of monitoring. The results show that the SS concentration of outflows was higher than that of inflow in winter (December, January, and February). However, the results are contrary for the rest of the year. The SS mainly flows into Lake Taihu via Chengdong and Baidu rivers, accounting for 38.7% and 12.1% of the total input rate, respectively. SS mainly flows out of the lake via Changdou, Taipu and Daqian rivers, accounting for 44.9%, 24.8% and 11.9% of the total output rate, respectively. The total transport rate of SS was varied in different months, with a net input rate of 1289.5 g·s-1.
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