广东沿海红树林区水质变化特征与富营养状态评估

doi:10.11978/2021111

热带海洋学报 ›› 2022, Vol. 41 ›› Issue (6): 1-11.doi: 10.11978/2021111CSTR: 32234.14.2021111

• 红树林专栏 • 下一篇

广东沿海红树林区水质变化特征与富营养状态评估

周月月¹^,²^,³^,⁴^,⁵, 王友绍¹^,²^,³^,⁵()

1.热带海洋环境国家重点实验室(中国科学院南海海洋研究所), 广东广州 510301
2.中国科学院大亚湾海洋生物综合试验站, 广东深圳 518121
3.中国科学院南海生态环境工程创新研究院, 广东广州 510301
4.中国科学院大学, 北京 100049
5.南方海洋科学与工程广东省实验室(广州), 广东广州 511458

收稿日期:2021-08-28 修回日期:2022-10-19 出版日期:2022-11-10 发布日期:2021-10-20
通讯作者: 王友绍
作者简介:INYANG Aniefiok Ini(1985—), 男, 尼日利亚, 博士研究生, 从事海洋生态学研究。email: aniefiokinyang@yahoo.com
基金资助:
国家重点研发计划项目(国家科技基础资源调查专项)(2017FY100700);国家自然科学基金重点项目(U1901211);国家自然科学基金重点项目(41876126);国际伙伴计划(133244KYSB20180012);南方海洋科学与工程广东省实验室(广州)人才团队引进重大专项(GML2019ZD0305);中国科学院A类战略性先导科技专项(XDA23050200)

Characteristics of water quality and their eutrophication assessment on the mangrove ecosystems along the Guangdong coast

INYANG Aniefiok Ini¹^,²^,³^,⁴^,⁵(), ZHOU Yueyue¹^,²^,³^,⁴^,⁵, WANG Youshao¹^,²^,³^,⁵()

1. State Key Laboratory of Tropical Oceanography (South China Sea Institute of Oceanology, Chinese Academy of Sciences), Guangzhou 510301, China
2. Daya Bay Marine Biology Research Station, Chinese Academy of Sciences, Shenzhen 518121, China
3. Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China
4. University of Chinese Academy of Sciences, Beijing 100049, China
5. Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China

Received:2021-08-28 Revised:2022-10-19 Online:2022-11-10 Published:2021-10-20
Contact: WANG Youshao
Supported by:
National Key Research and Development Plan(2017FY100700);National Natural Science Foundation of China(U1901211);National Natural Science Foundation of China(41876126);International Partnership Program of Chinese Academy of Sciences(133244KYSB20180012);Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)(GML2019ZD0305);Strategic Priority Research Program of the Chinese Academy of Sciences(XDA23050200)

摘要/Abstract

摘要：

调查了广东红树林区水质的时空变化, 分别采集了红树林区表层水体水样旱季30个样点(2017年10月至2018年1月)和湿季20个样点(2018年7月至8月)进行分析。利用单一营养状态指数(TSI Chl a)评价红树林水质特征和营养状态, 评价标准: 0<TSI≤30为贫营养, 30<TSI≤50为中营养, TSI>50为富营养, >70为高营养。红树林区环境参数的时空变化为: 盐度(2.15‰~27.14‰)、pH (6.18~8.65)、电导率(10.87~90.52µs·cm^-1)、浊度(0.0975~21.61FTU)、硝酸盐(0~127.2mg·L^-1)、亚硝酸盐(0~12.0mg·L^-1)、磷酸盐(0~34.5mg·L^-1)、硅酸盐(1.22~2.88mg·L^-1)和叶绿素a (0.19~38.08mg·m^-3)。聚类分析表明, 丰水期横跨雷州半岛右侧至广东沿海东部的水质相对较好, 而左侧则处于中营养化状态。同时, 在枯水期, 红树林区水质较差, 从雷州半岛周围的高中营养化状态, 到广东沿海东部的富营养化状态。主成分分析表明, 营养盐、盐度、pH、电导率(electrical conductivity, EC)和浊度对红树林区水质状况贡献显著, 进而影响红树林生态系统中藻类群落的变化。

关键词: 藻类丰度, 营养盐, 红树林, 营养状态, 广东沿海

Abstract:

It was investigated for the spatio-temporal variation of the water quality in the mangroves in Guangdong Province. Surface water samples were collected inside the mangroves from 30 sites during the dry season (Oct., 2017 to Jan., 2018) and 20 sites during the wet season (July to Aug., 2018). Water quality and trophic conditions were highlighted by the single trophic state index (TSI Chl a), and the evaluation standard was: 0<TSI≤30 oligotrophic, 30<TSI≤50 mesotrophic, TSI>50 eutrophic, and >70 high eutrophic. The spatio-temporal variations of the environmental variables were as follows: salinity (2.15‰~27.14‰), pH (6.18~8.65), electrical conductivity (10.87~90.52 µs·cm^-1), turbidity (5.6~272 FTU), nitrate (0~127.2 mg·L^-1), nitrite (0~12.0 mg·L^-1), phosphate (0~34.5 mg·L^-1), silicate (1.22~2.88 mg·L^-1) and Chlorophyll a (0.19~38.08 mg·m^-3). Cluster analysis deduced that the water quality across the right side of the Leizhou Peninsula to the east Guangdong coast during the wet season was relatively better, while the left side experienced mesotrophic conditions. Meanwhile the water quality decreased in the dry season, ranging from high mesotrophic conditions around the Leizhou Peninsula to eutrophic conditions across the east coast. The PCA revealed that nutrient salts, salinity, pH, EC and turbidity contributed significantly to the water quality status in the mangrove ecosystems, which in turn affects the algal communities in the ecosystem.

Key words: algal abundance, nutrients, mangroves, trophic states, Guangdong coast

中图分类号:

周月月, 王友绍. 广东沿海红树林区水质变化特征与富营养状态评估[J]. 热带海洋学报, 2022, 41(6): 1-11.

INYANG Aniefiok Ini, ZHOU Yueyue, WANG Youshao. Characteristics of water quality and their eutrophication assessment on the mangrove ecosystems along the Guangdong coast[J]. Journal of Tropical Oceanography, 2022, 41(6): 1-11.

图/表 10

参考文献 28

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variables	season	minimum	maximum	mean	STD	T-test	dry vs wet
pH	dry	7.23	8.63	7.95	0.338	not sign.	P<0.05
pH	wet	7.47	8.71	8.04	0.393	not sign.	P<0.05
temperature/℃	dry	13.33	29.79	20.37	3.946	sign.	P<0.01
temperature/℃	wet	23.76	34.49	30.09	2.447	sign.	P<0.01
EC/ (µS·cm^-1)	dry	10.87	90.52	33.21	14.76	sign.	P<0.01
EC/ (µS·cm^-1)	wet	1338	9702	3745	1966	sign.	P<0.01
TDS /(mg·L^-1)	dry	0.098	21.61	14.67	5.957	sign.	P<0.01
TDS /(mg·L^-1)	wet	2.042	18.14	10.44	5.892	sign.	P<0.01
turbidity /FTU	dry	5.6	395	82.91	94.67	not sign.	P<0.05
turbidity /FTU	wet	9.2	204	59.261	41.23	not sign.	P<0.05
salinity/‰	dry	5.11	27.31	18.78	7.019	sign.	P<0.01
salinity/‰	wet	2.15	22.82	12.67	7.538	sign.	P<0.01
nitrate /(mg·L^-1)	dry	3.5	127.2	50.923	40.76	sign.	P<0.01
nitrate /(mg·L^-1)	wet	0	2.0	0.13	0.458	sign.	P<0.01
nitrite/ (mg·L^-1)	dry	0.6	12.0	3.59	2.59	sign.	P<0.01
nitrite/ (mg·L^-1)	wet	0	1.5	0.109	0.368	sign.	P<0.01
phosphate/ (mg·L^-1)	dry	0.13	34.5	9.45	8.35	sign.	P<0.01
phosphate/ (mg·L^-1)	wet	0	2.5	0.997	1.042	sign.	P<0.01
silicate /( mg·L^-1)	dry	0.884	2.882	1.814	0.533	sign.	P<0.01
silicate /( mg·L^-1)	wet	1.54	3.04	2.25	0.368	sign.	P<0.01
Chl a/ (mg·m^-3)	dry	0.752	38.084	8.38	8.778	sign.	P<0.01
Chl a/ (mg·m^-3)	wet	0.137	13.526	1.804	2.794	sign.	P<0.01
TSI	dry	21.9	64.53	43.312	10.76	sign.	P<0.01
TSI	wet	3.65	53.27	25.11	11.17	sign.	P<0.01
algal density (cells·L^-1)	dry	558	23703	3881	4493	sign.	P<0.01
algal density (cells·L^-1)	wet	1395	70144	9826	13757	sign.	P<0.01

		pH	temperature	EC	TDS	turbidity	salinity	nitrate	nitrite	phosphate	silicate	Chl a	TSI (Chl a)	algal density
dry season	pH	1.000
	temperature	-0.602**	1.000
	EC	0.439*	-0.336	1.000
	TDS	0.443*	-0.259	0.361*	1.000
	turbidity	-0.122	0.299	-0.358*	-0.349	1.00
	salinity	0.458**	-0.263	0.342	0.959**	-0.361*	1.000
	nitrate	0.431*	-0.264	0.413*	-0.090	0.179	-0.119	1.000
	nitrite	0.512**	-0.331	-0.013	-0.019	0.077	-0.022	0.505**	1.000
	phosphate	0.204	-0.397*	0.077	-0.180	0.042	-0.243	0.420*	0.154	1.000
	silicate	-0.206	0.300	0.133	-0.006	0.181	0.110	-0.012	-0.063	-0.355	1.000
	Chl a	0.530**	-0.303	0.093	0.185	0.273	0.182	0.601**	0.359*	0.213	-0.095	1.000
	TSI (Chl a)	0.513**	-0.318	0.231	0.266	-0.119	0.273	0.469**	0.399*	0.062	-0.105	0.838**	1.000
	algal density	0.267	-0.055	0.108	-0.055	-0.071	-0.099	0.379*	0.498**	0.141	0.099	-0.077	-0.062	1.000
wet season	pH	1.000
	temperature	-0.237	1.000
	EC	-0.576**	0.206	1.000
	TDS	0.534**	0.111	-0.466*	1.000
	turbidity	0.0851	0.135	-0.125	0.078	1.000
	salinity	0.527**	0.104	-0.457*	1.000**	0.0701	1.000
	nitrate	-0.321	0.228	0.733**	-0.308	-0.085	-0.310	1.000
	nitrite	-0.323	0.240	0.725**	-0.325	-0.074	-0.327	0.992**	1.000
	phosphate	-0.031	-0.097	0.044	0.031	0.134	0.035	0.075	0.045	1.000
	silicate	-0.097	-0.213	0.317	-0.276	-0.055	-0.273	0.340	0.381	0.208	1.000
	Chl a	0.140	0.006	-0.156	0.140	0.110	0.135	-0.063	-0.068	-0.076	-0.133	1.000
	TSI (Chl a)	0.064	0.159	-0.019	0.193	0.178	0.192	0.049	0.044	-0.074	-0.098	0.799**	1.000
	algal density	0.194	0.065	-0.042	0.245	-0.021	0.250	-0.067	-0.073	0.305	-0.444*	-0.144	-0.153	1.000

广东沿海红树林区水质变化特征与富营养状态评估

Characteristics of water quality and their eutrophication assessment on the mangrove ecosystems along the Guangdong coast

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