Journal of East China Normal University(Natural Science) ›› 2022, Vol. 2022 ›› Issue (3): 61-70.doi: 10.3969/j.issn.1000-5641.2022.03.007
• Ecological and Environmental Sciences • Previous Articles Next Articles
Chunyi YANG1(), Guangxiang MA2, Junjie GU2, Jiayan GU1, Guofu HE1,*(
), Weixin KONG1, Gensen YANG1
Received:
2021-05-12
Online:
2022-05-19
Published:
2022-05-19
Contact:
Guofu HE
E-mail:846080988@qq.com;gfhe@des.ecnu.edu.cn
CLC Number:
Chunyi YANG, Guangxiang MA, Junjie GU, Jiayan GU, Guofu HE, Weixin KONG, Gensen YANG. Study on ecological environmental effects of sediment dredging: A case study on river regulation in Shandong Province[J]. Journal of East China Normal University(Natural Science), 2022, 2022(3): 61-70.
Table 1
Average density and biomass of macrobenthos in dredged and unswept areas"
采样时间 | 底栖生物 (主要种类) | 平均密度/(ind·m–2) | 平均生物量/(g·m–2) | |||
疏浚区 | 未疏浚区 | 疏浚区 | 未疏浚区 | |||
2017年11月 | 颤蚓科 | 0 | 23.11 | 0 | 0.0708 | |
摇蚊科 | 10.67 | 8.89 | 0.5223 | 0.0468 | ||
其他(大蜻科) | 5.33 | 0 | 23.4117 | 0 | ||
2018年6月 | 颤蚓科 | 0 | 9.60 | 0 | 0.0499 | |
摇蚊科 | 42.67 | 51.20 | 1.1728 | 0.3483 | ||
其他 | 0 | 0 | 0 | 0 | ||
2018年11月 | 颤蚓科 | 0 | 0 | 0 | 0 | |
摇蚊科 | 5.33 | 0 | 0.0075 | 0 | ||
其他 | 0 | 0 | 0 | 0 | ||
2019年6月 | 颤蚓科 | 0 | 14.40 | 0 | 0.0580 | |
摇蚊科 | 8.00 | 105.60 | 0.0464 | 0.9885 | ||
其他 | 0 | 4.80 | 0 | 0.0378 | ||
2019年11月 | 颤蚓科 | 58.67 | 0 | 0.2101 | 0 | |
摇蚊科 | 32.00 | 18.00 | 0.4080 | 0.1412 | ||
其他 | 5.33 | 2.00 | 0.0149 | 0.0056 |
Table 2
Microbial diversity of sediment samples over different periods"
采样时间 | 区域 | Simpson指数 | Shannon指数 | ACE指数 | Chao1指数 |
2017年11月 | 未疏浚区 | 0.9968 | 10.01 | 2156.00 | 2156.00 |
疏浚区 | 0.9961 | 9.86 | 2036.00 | 2036.00 | |
2018年6月 | 未疏浚区 | 0.9878 | 8.52 | 1473.00 | 1473.00 |
疏浚区 | 0.9922 | 9.36 | 1836.00 | 1836.00 | |
2018年11月 | 未疏浚区 | 0.8936 | 7.44 | 2120.27 | 2097.97 |
疏浚区 | 0.9971 | 10.17 | 2401.49 | 2399.02 | |
2019年6月 | 未疏浚区 | 0.9966 | 9.64 | 2467.78 | 2334.05 |
疏浚区 | 0.9970 | 10.00 | 3242.77 | 2996.83 | |
2019年11月 | 未疏浚区 | 0.9968 | 10.03 | 3246.37 | 3016.87 |
疏浚区 | 0.9969 | 10.05 | 3175.80 | 2984.64 |
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