| 引用本文: | 何尚卫,李勇,潘继征,高亚,吴晓东.江苏滆湖北部湖区综合整治后夏季水体光环境研究.湖泊科学,2015,27(2):311-318. DOI:10.18307/2015.0216 |
| HE Shangwei,LI Yong,PAN Jizheng,GAO Ya,WU Xiaodong.Optical properties after multi-treatments in northern part of Lake Gehu, Jiangsu Province in summer. J. Lake Sci.2015,27(2):311-318. DOI:10.18307/2015.0216 |
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| 江苏滆湖北部湖区综合整治后夏季水体光环境研究 |
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何尚卫1,2,3, 李勇2,3, 潘继征1, 高亚1,2,3, 吴晓东1,4
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1.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;2.苏州科技学院环境科学与工程学院, 苏州 215009;3.江苏省环境科学与工程重点实验室, 苏州 215009;4.中国科学院大学, 北京 100049
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| 摘要: |
| 选取滆湖为研究对象,探究这一开放水体的北部湖区水体光环境是否有利于沉水植物的恢复.通过对整治后的2013年夏季(7月和8月)滆湖北部整治湖区(A湖区)和临近未整治区(B湖区)水体光环境的监测,发现在夏季7月A湖区透明度(SD)平均达39cm,显著高于B湖区,同时7月A湖区SD较8月高.夏季悬浮物和叶绿素a(Chl.a)是影响水体光环境的主要因子.7月两个湖区无机悬浮物的浓度差异是造成SD和Kd差异的原因;7月与8月A湖区Chl.a的浓度差异,是造成A湖区两个月份水体光环境差异的主要因素.与整治时(2009年)相比,7月水体光环境显著提高.整治后A湖区水深的显著增加,在一定程度上不利于沉水植物的恢复. |
| 关键词: 滆湖 综合整治 光 沉水植物 |
| DOI：10.18307/2015.0216 |
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| Optical properties after multi-treatments in northern part of Lake Gehu, Jiangsu Province in summer |
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HE Shangwei1,2,3, LI Yong2,3, PAN Jizheng1, GAO Ya1,2,3, WU Xiaodong1,4
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1.State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China;2.School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, P. R. China;3.Key Laboratory of Environmental Science and Engineering of Jiangsu Province, Suzhou University of Science and Technology, Suzhou 215009, P. R. China;4.University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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| Abstract: |
| IIn order to investigate whether the optical properties were benefit for the restoration of submerged plants in an open water in the northern of a shallow lake, Lake Gehu, we measured the influence factors of the underwater light environment in the areas which were with and/or without multi-treatments(area A and area B) in July and August, 2013. The results showed that the average secchi disk depth(SD) was 39cm in July in area A, which was much higher than that in area B. The SD in July was also higher than that in August in area A. Suspended solids and chlorophyll-a(Chl.a) were the main factors of optical properties in summer. The significant difference of SD and Kd between the two areas in July was caused by the difference of inorganic suspended solids in two areas. The optical properties in area A also had a significant difference between July and August in 2013, which was caused by the remarkable differences of Chl.a concentration in the two months. The underwater light environment of area A has improved significantly in July, compared with 2009 when it was under treatment. It will not benefit the restoration of submerged plants in area A as the depth has increased a lot. |
| Key words: Lake Gehu multi-treatments light submerged plants |
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