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

• 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
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23710060/
• 关键词: 遺伝子組み換え; 遺伝子汚染; 森林管理; 空間モデル; シミュレーション; 遺伝子組み換え; 遺伝子汚染; 森林管理; 空間モデル; シミュレーション

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.

种植转基因（GM）树的生长速度更快，可以通过以更高的速度从大气中隔离碳来抵抗全球变暖，或者可能有助于满足日益增长的木材材料需求。但是，从保护天然种群的角度来看，转基因花粉，种子和基因移民到天然和繁殖种群中可能是有害的。因此，在考虑种植GM树之前，评估转基因花粉和/或种子分散对天然种群的潜在影响很重要。考虑种植通用树木的森林所有者需要评估与引入通用树木相关的福利和成本。有一些研究估计了来自需求侧的GM植物支付的意愿（WTP）（Lusk，J.L。等，2004； Huffman，W。E.等，2007）。但是，很少有研究研究土地管理人员对通用植物或树木的决定。在这项研究中，我们探讨了土地经理管理对种植转基因树木的决定，考虑了转基因花粉分散的潜在影响。由于花粉和/或种子的长距离分散以及树木的长寿命，因此对于分析转基因花粉和/或种子分散对天然种群的潜在影响是必要的。在这里，我们通过空间框架开发了一个简单的转基因花粉扩散模型，并探索森林所有者的活动，其中包括种植通用树木及其对自然种群的影响。