Results 1 to 10 of about 857 (88)
Conservation Biology, Volume 36, Issue 5, October 2022., 2022 Abstract As agricultural land use and climate change continue to pose increasing threats to biodiversity in sub‐Saharan Africa, efforts are being made to identify areas where trade‐offs between future agricultural development and terrestrial biodiversity conservation are expected to be greatest. However, little research so far has focused on freshwater
Cody Danaher +3 more
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Evaluating the social and ecological effectiveness of partially protected marine areas
Conservation Biology, Volume 35, Issue 3, Page 921-932, June 2021., 2021 Abstract Marine protected areas (MPAs) are a primary tool for the stewardship, conservation, and restoration of marine ecosystems, yet 69% of global MPAs are only partially protected (i.e., are open to some form of fishing). Although fully protected areas have well‐documented outcomes, including increased fish diversity and biomass, the effectiveness ...
John W. Turnbull +2 more
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Growth rhythm and removal methods of algae in drinking water source(饮用水水源藻类生长规律及去除方法)
Zhejiang Daxue xuebao. Lixue ban, 2008 通过对杭州饮用水水源地藻类的连续跟踪监测，发现藻类的生长与温度有很大的关系，持续的高温更容易引起藻类的疯长，当水库表面的温度从33.9 ℃下降到27.2 ℃，藻密度也从4 000万个/L下降到了480万个/L. 一般情况下，1.5 m深处藻类的密度为表层藻类密度的三分之二，而总氮、总磷是藻类生长的重要因素.总结了目前常用的给水处理中藻类的去除方法，通过提高混凝剂投加量和加氯量等强化常规工艺进行除藻，取得了不错的效果，总去除效率达到95%左右.
ZHUJian-wen(朱建文) +4 more
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Revisions to the Classification, Nomenclature, and Diversity of Eukaryotes
Journal of Eukaryotic Microbiology, Volume 66, Issue 1, Page 4-119, January/February 2019., 2019 Abstract This revision of the classification of eukaryotes follows that of Adl et al., 2012 [J. Euk. Microbiol. 59(5)] and retains an emphasis on protists. Changes since have improved the resolution of many nodes in phylogenetic analyses. For some clades even families are being clearly resolved.
Sina M. Adl +46 more
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Gongye shui chuli, 2022 微生物燃料电池（MFCs）能够在降解有机物的同时将化学能转化为电能，近年来其独特的能源环境效应在降解藻类生物质方面引起广泛关注。然而，成分复杂的藻类细胞壁会阻碍藻类生物质在微生物燃料电池中的降解。为了提高微生物燃料电池降解藻类生物质的效能，通常需要对藻类生物质进行预处理，破坏藻类细胞壁使生物基质释放，并将难降解的大分子有机物分解为易降解的小分子有机物。综述了目前应用于微生物燃料电池降解藻类生物质的预处理方法，包括机械法、加热法、微波法和超声波法等物理预处理法，酸、碱、氧化等化学预处理法，酶或微生物细胞 ...
宗友健 +5 more
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Gongye shui chuli, 2020 目前，含藻水体中藻类的常用处理方法有化学法、物理法以及生物法。化学法能够快速杀藻，但对水环境的毒副作用及藻毒素释放限制了其在自然水体中的应用；物理法一般只适用于小范围藻类水体的控制，效率较低且无法从根本上解决藻类污染；生物法虽然能够达到控制藻类生长的目的，但周期较长，不适于突发性水华的治理。因此选用切实可行的除藻新技术对于藻华去除及富营养化水体的治理至关重要。综述了几种除藻技术的应用现状及优缺点，指出了未来除藻技术的发展方向。
方雨博 +5 more
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Quantifying progress toward a conservation assessment for all plants
Conservation Biology, Volume 32, Issue 3, Page 516-524, June 2018., 2018 Abstract The Global Strategy for Plant Conservation (GSPC) set an ambitious target to achieve a conservation assessment for all known plant species by 2020. We consolidated digitally available plant conservation assessments and reconciled their scientific names and assessment status to predefined standards to provide a quantitative measure of progress ...
Steven P. Bachman +2 more
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Haiyang yu huzhao大型藻类是饵料和栖息地的主要供给者之一，枸杞岛大规模的贻贝养殖筏架和岛礁岸线为藻类生长提供了丰富的基质，但对该区域丰富的藻类资源与藻床无脊椎动物功能群的关联性知之甚少，由此也限制了对大型藻类生态系统服务功能的深入理解。于2021年8月至2022年4月在枸杞岛贻贝养殖区布设12个水体站位、3个潮间带站位，开展了4个季度大型藻类及藻床无脊椎动物的采样调查。利用大型藻类与藻床无脊椎动物功能群的生物量，采用线性混合效应模型(linear mixed-effects models, LMMs)、广义加性模型 ...
田 阔 +7 more
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Gongye shui chuli, 2003 对臭氧的杀藻效能以及杀藻后水样的致突变性进行了系统研究，结果表明：当要求的叶绿素去除率较低时，投加低浓度O3化气体臭氧需要量少。一定浓度的O3化气体，在叶绿素达到一定去除率后，增加O3投加量，叶绿素增加幅度不大；O3杀藻后不会使水样中有机浓集物的致突变性增加；藻体细胞的细胞壁结构与藻类的杀灭有很大关系。蓝藻等类似于细菌的藻类容易被杀灭，而细胞壁结构比较坚固的藻类如绿藻、硅藻则不容易被杀灭。
裴海燕, 胡文容
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