Results 31 to 40 of about 51,001 (164)
塔里木沙漠公路防护林土壤微生物生物量与土壤环境因子的关系 [PDF]
, 2009 为探讨极端干旱区风沙土土壤微生物与土壤环境因子的作用规律,采用相关分析法研究了塔里木沙漠公路防护林地土壤微生物生物量与理化因子和酶活性的关系.结果表明:土壤容重和粒径减小(R0.85)时,防护林地中土壤微生物数量和生物量有增大趋势,由容重与微生物量的相关性主导;土壤养分含量与土壤微生物数量和生物量呈正相关,主要由速效养分和放线菌、微生物生物量C、P的相关性所致;土壤酶活性与土壤微生物数量和生物量的相关性差异较大,R在0.51～0.91,主要取决于蔗糖酶、磷酸酶与放线菌、微生物量C的相关 ...
周宏伟 +7 more
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Conservation Funding at the Local Level 地方层面的保护资金
Wildlife Letters, EarlyView.Direct conservation fund transfer to local communities ensures the involvement of these communities in decision‐making and fund utilisation, which will ultimately lead to effective biodiversity conservation. A Cakchiquel family in the hamlet of Patzutzun, Guatemala, 1993. Credits: John Issac. Source: UNEP‐WCMC Internal Resources.
Jithu K Jose
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop +8 more
wiley +1 more source
Study on microbial community responses and dissolved organic matter (DOM) transformations in coastal surface seawater amended with sedimentary DOM in Xiamen [PDF]
, 2016 海洋沉积物是海水溶解有机质（Dissolvedorganicmatters，DOM）的重要来源。DOM作为海洋异养微生物生存的主要物质和能量来源，影响着微生物群落的结构，而微生物群落也同时影响着DOM的化学组成和最终命运。近年来，海洋沉积物DOM成为海洋生物地球化学领域的热点研究对象，但其生物可利用性一直存在争议，且沉积物DOM释放到上层水体后将如何影响微生物群落的结构也不清晰。为了研究沉积物DOM的生物可利用性，以及沉积物DOM与上层海水微生物群落之间的相互关系，本论文采集了厦门近岸沉积物表层DOM ...
周文楚
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra +3 more
wiley +1 more source
Isolation of natural products and fermentation optimization of marine antifouling active bacteria [PDF]
, 2016 海洋生物污损对海中人工设施造成严重危害，传统重金属防污剂如有机锡和氧化亚铜等因其毒性相继被禁用或限用，急需开发新型环保防污剂，其中海洋生物体内的防污损活性物质是重要来源。但海洋动植物中的防污损活性物质通常含量低，严重限制其开发利用。微生物可通过发酵进行规模化培养，有利于解决天然防污损产物在量上的难题。另外，海洋生物的体表微生物在防御体表污损中起到重要作用。对海洋生物体表微生物进行鉴定和防污损活性物质研究，不仅为揭示海洋微生物与海洋污损生物之间的化学生态关系和相互作用提供新的研究资料 ...
马福成
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometric imbalance caused by nitrogen (N) deposition typically exacerbates phosphorus (P) limitation in plants. However, it remains unclear whether this effect extends to soil microbes, particularly those in the rhizosphere.
Jipeng Wang +5 more
wiley +1 more source
Bioreduction-assisted fabrication of Pd-based nanomaterials and their catalytic applications [PDF]
, 2015 由于植物或微生物还原法在制备贵金属纳米材料具有绿色、环保等优点，因而备受研究者关注。其中，利用植物提取液还原法制备纳米材料，植物来源易得，操作简单便捷；而微生物表面的官能团可以吸附和固定金属离子，表面分子的多样性和结构的复杂性，使得微生物可以作为有效模板制备或自组装新颖的纳米结构材料，因此，生物还原法已成为纳米材料制备的一个重要研究方向。为此，本论文研究了微生物法和植物还原法两部分内容。微生物法选择培养生物量比较高的真核生物--毕赤酵母菌为生物吸附剂和还原剂 ...
陈慧梅
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Methods in Ecology and Evolution, EarlyView.Abstract DNA barcode‐based species identification has become pivotal in biodiversity research. Current barcoding‐based deep learning methods have advantages in species identification but exhibit significant limitations. By using COI barcoding alone, previous studies were unable to fully capture species identification features. Prior methods showed that
Bin Ye +4 more
wiley +1 more source
大学トレーニングセンターにおけるトレーニング器具の衛生状況について [PDF]
, 2018 University training center users include those attempting to improve their health. There are reports of a tendency of annual increase in the number of elderly people visiting fitness clubs.
田中 淳, 畑島 紀昭
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