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首页> 外文期刊>Agriculture, Ecosystems & Environment: An International Journal for Scientific Research on the Relationship of Agriculture and Food Production to the Biosphere >Patterns of growth in Aechmea magdalenae (Bromeliaceae) and its potential as a forest crop and conservation strategy
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Patterns of growth in Aechmea magdalenae (Bromeliaceae) and its potential as a forest crop and conservation strategy

机译:增长模式Aechmea magdalenae(凤梨科)及其潜在森林作物和保护策略

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摘要

Forest cultivation of non-timber forest products (NTFPs) can provide economic incentives for local farmers to conserve forest environments. Assessing the agronomic and conservation potential of NTFP requires the integration of ecological information on optimal conditions for growth and reproduction with socioeconomic data on local farming economies and labor calendars. The terrestrial bromeliad, Aechmea magdalenae, is a typical NTFP harvested for its fiber in the rainforests of southern Mexico and Guatemala. In the buffer zone of Mexico's Los Tuxtlas Biosphere Reserve, cultivation trials using ramets transplanted from wild populations were initiated as a strategy to conserve buffer zone forests. We compared four measures of growth and survival of rosettes under the different light conditions of primary versus secondary forests; wild versus cultivated populations;.over different seasons; and propagated by different methods. We also contrasted initial costs, economic returns and labor demands for A. magdalenae cultivation with the other major land-uses in the region. Compared to cattle production, the major cause of deforestation in the region, A. magdalenae cultivation offers high economic returns and low labor and initial costs. Seasonal differences in rates of leaf and ramet production indicated that the optimal timing for harvest of these parts does not interfere with local farmers subsistence agricultural duties. Secondary forest rosettes grew faster than primary forest rosettes due to higher light conditions, and secondary forests were also more accessible to local farmers for cultivation. Cultivation implied ecological costs in terms of ramet severance and adaptation, but the less-dense growing conditions of cultivated plants resulted in higher growth rates by the end of the second year. A. magdalenae cultivation trials in Los Tuxtlas have illustrated that farmers will protect their forests from deforestation and forest fires when they hold economic value.
机译:林业种植非木材林产品(非木制森林制品的)可以为当地提供经济激励农民保护森林环境。评估农艺和保护非木制森林制品的需要集成的潜力生态信息的最佳条件生长和繁殖与社会经济数据对当地农业经济和劳动日历。陆地凤梨科植物,Aechmea magdalenae,一个典型的非木制森林制品的收获的纤维热带雨林的南部墨西哥和危地马拉。墨西哥洛Tuxtlas生物圈的缓冲区使用无性系分株的储备、培养试验移植从野生种群被启动作为一个策略来保存缓冲区森林。相比生长和存活的四个措施花结在不同的光照条件下主要和次要的森林;耕地数量;。通过不同的方法和传播。对比初始成本、经济回报和劳动要求a magdalenae栽培另一个主要地区的土地。牛生产的主要原因在该地区的森林砍伐,magdalenae培养提供了高经济回报和低劳动和初始成本。叶和生产表明无性系分株这些部件的最优时机收获不会干扰当地农民生存吗农业关税。增长快于原始森林花结由于更高的光照条件,二次森林也更容易被当地农民种植。无性系分株的遣散费和适应,但是种植的密度较低增长的条件植物年底导致更高的增长率第二年。试验在Los Tuxtlas已经说明了这一点农民将保护他们的森林森林砍伐和森林火灾时经济价值。

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