坚持可持续采收准则对加拿大红豆杉总光合能力的影响

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2018-02-19 DOI:10.5558/TFC2018-002

MartinSarah, LamontagneManuel

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引用次数: 0

摘要

加拿大红豆杉(Taxus canadensis Marsh.)的叶子被商业收获，用于提取抗癌药物产品中的紫杉烷。根据新不伦瑞克省的采伐指导方针，每五根树枝中有四根在最近三年才应该采伐。在新不伦瑞克省西北部混交林和耐寒阔叶林的林下进行了研究，估计了采叶对剩余植物净光合活性的影响。在6月、7月和8月对当龄至5年生的叶片进行净光合作用测定，以确定各叶龄对6年生枝条段光合能力的贡献。测定各节间龄级(0 ~ 5龄和≥6龄)的总生物量，计算采尖对生物量去除率和光合能力的影响。当遵循新不伦瑞克省的采伐指导方针时，采伐移除了过去三年生长叶子的15%到17%，这相当于……

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The impact of adhering to sustainable harvesting guidelines on the total photosynthetic capacity of Taxus Canadensis

Foliage of Canada yew (Taxus canadensis Marsh.) is commercially harvested for extracting taxanes used in anticancer pharmaceutical products. According to New Brunswick harvesting guidelines, only the last three years growth from four out of every five branches should be harvested. A study conducted in the understory of mixedwoods and tolerant hardwoods in northwestern New Brunswick estimated the impact of harvesting foliage on net photosynthetic activity of the residual plant. Net photosynthesis was measured on foliage of current to five-years-old in June, July and August to determine the contribution of each foliage age class to the photosynthetic capacity of a 6-year-old branch segment. Total biomass of each internode age class (0 to 5 and ≥ 6-years-old) was measured to calculate the impact of tip harvesting on percentage of biomass removed and on photosynthetic capacity. When following New Brunswick harvesting guidelines, harvesting removed 15 to 17% of the last three years growth foliage which corresp...

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.