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浏览/检索结果: 共44条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Phylogenomic Analyses of the Tenthredinoidea Support the Familial Rank of Athaliidae (Insecta, Tenthredinoidea) 期刊论文  OAI收割 INSECTS, 2022, 卷号: 13, 期号: 10, 页码: 23 作者:  Niu, Gengyun;  Budak, Mahir;  Korkmaz, Ertan Mahir;  Dogan, Ozgul;  Nel, Andre   |  收藏  |  浏览/下载：34/0  |  提交时间：2022/12/01 Tenthredinidae  phylogeny  rare genomic changes  gene rearrangement  RNA secondary structure   Paleoproductivity and climate evolution in the Kuroshio mainstream area over the past millennium 期刊论文  OAI收割 ECOLOGICAL INDICATORS, 2021, 卷号: 121, 页码: 10 作者:  Wang, Yueqi;  Song, Jinming;  Duan, Liqin;  Yuan, Huamao;  Li, Xuegang   |  收藏  |  浏览/下载：48/0  |  提交时间：2021/04/21 Sterols  Paleoproductivity  Phytoplankton community structure  Climate changes  Kuroshio mainstream   Multilevel understanding dynamic changes in inbound tourist flow network (ITFN) structure: topology, collaboration, and competitiveness 期刊论文  OAI收割 CURRENT ISSUES IN TOURISM, 2020, 页码: 19 作者:  Zhu, He   |  收藏  |  浏览/下载：19/0  |  提交时间：2021/03/16 Network structure  topology  collaboration  competitiveness  dynamic changes  China   Multilevel understanding dynamic changes in inbound tourist flow network (ITFN) structure: topology, collaboration, and competitiveness 期刊论文  OAI收割 CURRENT ISSUES IN TOURISM, 2020, 页码: 19 作者:  Zhu, He   |  收藏  |  浏览/下载：29/0  |  提交时间：2021/03/16 Network structure  topology  collaboration  competitiveness  dynamic changes  China   The mediatory roles of species diversity and tree height diversity: Linking the impact of land-use intensity to soil erosion 期刊论文  OAI收割 LAND DEGRADATION & DEVELOPMENT, 2020, 卷号: 32, 期号: 3, 页码: 1127-1134 作者:  Wen, Zhi;  Zheng, Hua;  Zhao, He   |  收藏  |  浏览/下载：21/0  |  提交时间：2021/08/31 biodiversity  ecosystem services  forest management  land-use changes  soil loss  stand structure diversity   Impact of oil price fluctuations on tanker maritime network structure and traffic flow changes 期刊论文  OAI收割 APPLIED ENERGY, 2019, 卷号: 237, 页码: 390-403 作者:  Yu, Hongchu;  Fang, Zhixiang;  Lu, Feng;  Murray, Alan T.;  Zhang, Hengcai   |  收藏  |  浏览/下载：61/0  |  提交时间：2019/05/22 Oil price  Maritime network structure  Traffic flow changes  Automatic identification system  Granger causality test  Vector autoregressive method   A novel deep eutectic solvent from lignin-derived acids for improving the enzymatic digestibility of herbal residues from cellulose 期刊论文  OAI收割 CELLULOSE, 2019, 卷号: 26, 期号: 3, 页码: 1947-1959 作者:  Chen, Long;  Yu, Qiang;  Wang, Qiong;  Wang, Wen;  Qi, Wei   |  收藏  |  浏览/下载：64/0  |  提交时间：2020/10/29 Deep eutectic solvents  Enzymatic hydrolysis  Lignin  Pretreatment  Structure changes   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  |  浏览/下载：21/0  |  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.   Crop Structure Changes Altered the Cropland Nitrogen Balance between 2005 and 2015 on the Sanjiang Plain, China 期刊论文  OAI收割 SUSTAINABILITY, 2018, 卷号: 10, 期号: 11, 页码: - 作者:  Li, Cong;  Yang, Chunxia;  Zheng, Hua;  Huang, Binbin;  Li, Ruonan   |  收藏  |  浏览/下载：43/0  |  提交时间：2019/06/17 nitrogen balance  agro-ecosystem  crop structure changes  environmental risk  Sanjiang Plain   Impacts of long-term nitrogen addition, watering and mowing on ammonia oxidizers, denitrifiers and plant communities in a temperate steppe 期刊论文  OAI收割 APPLIED SOIL ECOLOGY, 2018, 卷号: 130, 页码: 241-250 作者:  He, Ji-Zheng;  Zhang, Cui-Jing;  Yang, Zhong-Ling;  Shen, Ju-Pei;  Sun, Yi-Fei   |  收藏  |  浏览/下载：58/0  |  提交时间：2019/06/17 Global changes  Ammonia oxidizers  Denitrifiers  Community structure  Plant biomass