Results 31 to 40 of about 8,234 (208)
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecological communities are stressed by rapid and complex anthropogenic changes, threatening the persistence of biotic interactions and ecosystem functioning. Plant–pollinator communities, for instance, undergo structural transformations as a result of land‐use change ...
Erliang Gao +8 more
wiley +1 more source
Application of pattern recognition technology in classification of Radix et Rhizoma Glycyrrhizae of different sources [PDF]
, 2006 目的:建立不同来源甘草药材的模式识别分类方法。方法:通过 HPLC 快速获得19个不同来源甘草药材样品的色谱指纹图谱,色谱条件固定相为 Kromasil KR100-5 C_(18)(150mm×4.6mm),流动相为乙腈-0.05%三氟乙酸溶液,梯度洗脱为乙腈20%(0min)→40%(5min)→50%(10min),流速为0.8mL·min~(-1),检测波长为254nm,从每个色谱指纹罔中提取出325个特征变量,采用聚类分析对甘草药材样品进行相似性评价,并应用 PLS 方法建立起不同植物种 ...
卓林, 朱尔一, 王小如, 王巧娥
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Taxonomic and functional diversity of urban bees of the world
Conservation Biology, EarlyView.Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso +10 more
wiley +1 more source
THE APPLICATION of PLANT MALE STERILITY TO PLANT BRE EDING [PDF]
, 1995 本文从杂交种生产、轮回选择、复合杂交、生殖适度、配合力征定、遗传多性性的控制、花粉运动和授粉的研究、种植方式的确定、多倍体育种和远缘杂交育种等九个方面，系统地评述了植物雄性不育性在育种工作中的应用领域和近年来的进展。The application of plant male sterility to plant breeding was discussed systematically in the Field of hybrid production, recurrentselection ...
夏涛
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A more‐than‐human political ecology of Indonesian songbird trade
Conservation Biology, EarlyView.Abstract Since its inception, conservation science has considered wildlife trade a problem. In focusing on conservation outcomes, conservationists almost completely ignore the welfare of traded animals and plants and the harms they endure. We developed a political ecology approach that incorporates the interconnectedness of people with animals and ...
Sicily Fiennes +9 more
wiley +1 more source
Comparative Analysis on Dhurrin Content of Main Sorghum Cultivars in China [PDF]
The quality of brewing grain is an important guarantee for the flavor and quality safety of brewing liquor. In the process of fermentation, the cyanogen in sorghum grains was decomposed to produce cyanide, which further reacted to produce carcinogen ...
CHANG Xiao-jiao +6 more
core +1 more source
Functional Ecology, Volume 40, Issue 5, Page 1151-1164, May 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant phenology is crucial for understanding plant growth and climate feedback. It affects canopy structure, surface albedo, and carbon and water fluxes. While the influence of environmental factors on phenology is well‐documented, the role of plant intrinsic factors ...
Yunpeng Luo +8 more
wiley +1 more source
Application of Pattern Recognition Technology into Classification of Chromatographic Fingerprinting of Radix et Rhizoma Glycyrrhizae [PDF]
, 2006 本论文以中药甘草为研究对象，采用模式识别技术结合高效液相色谱对不同产地、不同植物种、不同种植方式、不同生态型以及不同等级的甘草药材进行了分类探讨，为中药甘草的质量评价和深度开发提供有价值的参考依据，并尝试采用EXCEL中的VBA设计中药指纹图谱模式识别软件，为中药指纹图谱的数据处理提供了一种有效可行的途径。第一章通过大量的文献调研，概述了中药指纹图谱技术、模式识别技术以及模式识别技术在中药指纹图谱研究中的应用，在此基础上，结合中药甘草的研究现状，归纳了本论文研究课题的立题依据、研究目的、意义及主要内容 ...
卓林
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Striking a balance: Stakeholder perceptions of risk in horse racing
Equine Veterinary Journal, Volume 58, Issue 3, Page 814-823, May 2026.Abstract Background Thoroughbred racing is a major industry, and in recent years public concerns about equine safety have become more prominent, particularly in relation to on‐track injuries and fatalities. This has challenged the industry's social licence to operate (SLO).
Jessie McCarthy +2 more
wiley +1 more source
, 2007 应用非饱和土壤水运动理论,建立膜下滴灌条件下土壤水分运动二维数值模拟模型,研究了田间层状土壤在膜下滴灌条件下土壤水分运动特征。应用不同小区不同灌水处理的实测值与模拟值进行对比,同时对模型做了精度分析,结果表明符合精度要求,这说明所建立的模型能客观地反映实际土壤条件下的水分运动情况。研究结果表明:土壤剖面30~40 cm粘土层使土壤水分运动具有很大的差异,0~30 cm变化明显,而40 cm以下土壤水分运动的变化较小。膜下滴灌应该采取灌水量小 ...
串志强, 方怡向, 盛钰, 赵成义
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