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Forest management under the risk associated with transgenic pollen dispersal -explore forest management decisions of GM trees plantation

转基因花粉传播风险下的森林管理——探索转基因树木种植园的森林管理决策

基本信息

批准号：
23710060
负责人：
KONOSHIMA Masashi
金额：
$ 0.92万
依托单位：
University of the Ryukyus
依托单位国家：
日本
项目类别：
Grant-in-Aid for Young Scientists (B)
财政年份：
2011
资助国家：
日本
起止时间：
2011 至 2012
项目状态：
已结题

项目摘要

Planting genetically modified (GM) trees, which grow faster, may help counter global warming by sequestering carbon from the atmosphere at a higher rate or may help meet a growing demand of wood materials. However, dispersal of transgenic pollen, seed and gene immigration into natural and breeding populations may be deleterious from the point of view of the conservation of natural populations. Therefore, it is important to evaluate the potential impact of transgenic pollen and/or seed dispersal on natural populations before considering planting GM trees. Forest owners who consider planting GM trees need to evaluate benefits and costs associated with introduction of GM trees. There are studies that estimate the willingness to pay (WTP) for GM plants from the demand sides (Lusk, J.L. et al., 2004; Huffman, W. E., et al., 2007). However, there are few studies examining land managers` management decision on GM plants or trees. In this study we explore land managers` management decision on planting GM trees considering the potential impact of transgenic pollen dispersal. Because of long-distance dispersal of pollens and/or seeds as well as long life cycle of trees, a spatial and temporal framework is necessary for analyzing the potential impact of transgenic pollen and/or seed dispersal on natural populations. Here, we develop a simple simulation model of transgenic pollen dispersal with a spatial framework and explore forest owner`s activities that includes planting GM trees and its impact on natural populations.

种植生长更快的转基因树，可能会以更高的速度从大气中隔离碳，从而帮助对抗全球变暖，或者可能有助于满足日益增长的木质材料需求。然而，从保护自然种群的角度来看，转基因花粉、种子和基因迁移到自然种群和繁殖种群的传播可能是有害的。因此，在考虑种植转基因树之前，评估转基因花粉和/或种子传播对自然种群的潜在影响是很重要的。考虑种植转基因树的森林所有者需要评估与引进转基因树相关的收益和成本。有研究从需求方估计转基因工厂的支付意愿(WTP)(Lusk，J.L.等人，2004年；Huffman，W.E.，等人，2007年)。然而，很少有研究考察土地管理者对转基因植物或树木的管理决策。在这项研究中，我们探讨了考虑转基因花粉传播的潜在影响的土地管理者种植转基因树的管理决策。由于花粉和/或种子的远距离传播以及树木的长生命周期，需要一个时空框架来分析转基因花粉和/或种子传播对自然种群的潜在影响。在这里，我们建立了一个具有空间框架的转基因花粉传播的简单模拟模型，并探讨了森林所有者的活动，包括种植转基因树及其对自然种群的影响。