中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共11条，第1-10条 帮助

条数/页： 排序方式：
Measurement and spatio-temporal transfer of greenhouse gas emissions from agricultural sources in China: A food trade perspective 期刊论文  OAI收割
RESOURCES CONSERVATION AND RECYCLING, 2023, 卷号: 197, 页码: 107100
作者:  Xuan, Xin;  Zhang, Fan;  Deng, Xiangzheng;  Bai, Yuping
  |  收藏  |  浏览/下载：21/0  |  提交时间：2023/09/07
Isotopic evidence for size-based dietary shifts in the jellyfish Cyanea nozakii in the northern East China Sea 期刊论文  OAI收割
JOURNAL OF PLANKTON RESEARCH, 2020, 卷号: 42, 期号: 6, 页码: 689-701
作者:  Wang, Pengpeng;  Zhang, Fang;  Liu, Mengtan;  Sun, Song;  Xian, Haochen
  |  收藏  |  浏览/下载：39/0  |  提交时间：2021/04/12
碳氮稳定同位素比值在潮间带大型底栖动物组织间差异性研究 期刊论文  OAI收割
海洋学报, 2019, 卷号: 41, 期号: 4, 页码: 74-82
作者:  李宝泉
  |  收藏  |  浏览/下载：35/0  |  提交时间：2020/06/17
潮间带  大型底栖动物  碳氮稳定同位素  食源和营养级分析  采样部位选取  intertidal zone  macrobenthos  carbon and nitrogen stable isotopes  food sources and trophic levels study,sampling parts  The technique of stable isotope analysis has been widely applied for the field of food web studies in recent years.However,few researches concerned about the impacts of different tissues used for analysis on the food web building.With the purpose of accuracy and comparability in the food web studies,the sampling tissues should be standardized.In this study,10macrobenthic species from the intertidal zone of the Yellow River Delta and Yantai were chosen as the target object to test the isotopic characteristic variations ofdelta~(13)C anddelta15 N at different body parts (whole bodies,muscles and gills).Our results show thatdelta~(13)C anddelta15 N values vary in different sampling tissues for most species,which indicates the different tissues used for analysis impact the food web building.To achieve a more accuracy and comparability result,suitable tissue should be primarily chosen for their food sources and trophic levels analysis.Namely,when the organism as predator,their muscles should first be chosen,for examples,adductor and foot muscles of mollusks,leg muscles of crabs and back muscles of fishes  when the organism as prey, most of their tissues,except for indigestible part(for polychaetes,the digestive tract contents should be removed) should be chosen for analysis on food sources and trophic levels of the secondary consumer,for example,whole soft parts of mollusks,the mixture of muscles and gills of crabs.  
二噁英类 POPs的环境污染特征及人体暴露研究 学位论文  OAI收割
北京: 中国科学院生态环境研究中心, 2018
作者:  韩莹
  |  收藏  |  浏览/下载：162/0  |  提交时间：2019/07/02
Spatial Variation in Trophic Structure of Dominant Fish Species in Lake Dongting, China during Dry Season 期刊论文  OAI收割
WATER, 2018, 卷号: 10, 期号: 5, 页码: 15
作者:  Yu, Jia;  Guo, Longgen;  Zhang, Huan;  Xu, Jun;  Hu, Huaming
  |  收藏  |  浏览/下载：50/0  |  提交时间：2019/07/03
Temporal variation of energy sources in a floodplain lake fish community 期刊论文  OAI收割
JOURNAL OF FRESHWATER ECOLOGY, 2012, 卷号: 27, 期号: 2, 页码: 295-303
作者:  
收藏  |  浏览/下载：27/0  |  提交时间：2012/09/25
Temporal variation of energy sources in a floodplain lake fish community SCI/SSCI论文  OAI收割
2012
作者:  Xu J.
收藏  |  浏览/下载：20/0  |  提交时间：2012/09/04
Potential influence of water level changes on energy flows in a lake food web 期刊论文  OAI收割
CHINESE SCIENCE BULLETIN, 2011, 卷号: 56, 期号: 26, 页码: 2794-2802
作者:  Wang Yuyu;  Yu XiuBo;  Li WenHua;  Xu Jun;  Chen YuWei
收藏  |  浏览/下载：33/0  |  提交时间：2011/11/09
Potential influence of water level changes on energy flows in a lake food web SCI/SSCI论文  OAI收割
2011
作者:  Xu J.
收藏  |  浏览/下载：37/0  |  提交时间：2012/06/08
Levels and Mass Burden of DDTs in Sediments from Fishing Harbors: The Importance of DDT-Containing Antifouling Paint to the Coastal Environment of China 期刊论文  OAI收割
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 卷号: 43, 期号: 21, 页码: 8033-8038
作者:  Lin, Tian;  Hu, Zhaohui;  Zhang, Gan;  Li, Xiangdong;  Xu, Weihai
  |  收藏  |  浏览/下载：30/0  |  提交时间：2011/07/05