中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
生态环境研究中心 [2]
烟台海岸带研究所 [1]
采集方式
OAI收割 [3]
内容类型
期刊论文 [2]
学位论文 [1]
发表日期
2019 [1]
2016 [1]
2015 [1]
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烟台牟平海洋牧场季节性低氧对大型底栖动物群落的生态效应
期刊论文
OAI收割
生物多样性, 2019, 卷号: 27, 期号: 2, 页码: 200-210
作者:
李宝泉
  |  
收藏
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浏览/下载:20/0
  |  
提交时间:2020/06/17
低氧
群落结构
群落恢复
敏感种
机会种
hypoxia
community structure
community recovery
sensitive species
opportunistic species
Hypoxia is a common phenomenon in the world's oceans, especially in the shallow waters of coastal zones. Rates of hypoxia are increasing due to global climatic changes and anthropogenic activities. Hypoxia can cause mass mortality of marine animals and can have severe negative impacts on marine ecosystems. To better understand the effects of hypoxia on macrobenthic communities, a survey was carried out in the Muping Marine Ranch (Yantai) during June, August and September of 2016. Results showed that seasonal hypoxia led to changes in benthic community structure, especially in terms of species composition and dominant species. The dominant species were Polychaeta Lumbrinereis latreilli, Sternaspis scutata and Mollusca Endopleura lubrica in summer. The opportunistic species Lumbrinereis latreilli increased, whereas, sensitive species such as Leptomya minuta, Glycera chirori, Upogebia major, Pontocrates altamarimus, Eriopisella sechellensis decreased during the hypoxic period of August. Hypoxia also reduced biodiversity indices. The effect of hypoxia on abundance and biomass were not significant, mainly because of the increase in the opportunistic Lumbrinereis latreilli, which counteracted the decline in abundance and biomass of other species. Individual physiological tolerance to hypoxia was different among species. Lumbrinereis latreilli showed higher tolerance to hypoxia in dissolved oxygen (DO) = 1.0 mg/L compared to other species. Some sensitive species, such as Leptomya minuta, Upogebia major, Pontocrates altamarimus and Eriopisella sechellensis showed lower tolerance when DO < 2.5 mg/L. When DO increased to 2.5 mg/L, the macrobenthic community start to recover gradually. The recovery extent and time needed were closely related to the degree of seasonal hypoxia.
The vegetation recovery pattern and affecting factors after pipeline disturbance in northwest China
期刊论文
OAI收割
JOURNAL FOR NATURE CONSERVATION, 2016, 卷号: 29, 页码: 114-122
作者:
Xiao, Jun
;
Shi, Peng
;
Wang, Yafeng
;
Yang, Lei
收藏
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浏览/下载:20/0
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提交时间:2017/03/24
Affecting factors
Buffer analysis
Engineering factor
Environment factor
Recovery period
Pipeline construction
油气管道建设工程对西北荒漠草原区生态环境影响的定量研究
学位论文
OAI收割
博士, 北京: 中国科学院研究生院, 2015
作者:
肖峻
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浏览/下载:39/0
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提交时间:2016/08/09
廊道式工程,综合植被指数,缓冲区分析,影响范围,恢复期, linear project constructions, vegetation index, buffer analysis, effect scope, recovery period