特定人口气候敏感的顶部高度曲线及其对辅助迁移的应用
Dawei Luo1,2, Gregory A O'Neill3, Yuqing Yang4
1Department of Renewable Resources, University of Alberta, 442 Earth Science Buildings, Edmonton, AB T6G 2E3 Canada.
概括
气候变化影响着森林生长. 结合辅助迁移和气候数据的新模型改善了木松和白杉的预测,保持了森林的生产力.
科学领域:
- 林业与气候变化 林业与气候变化
- 人口遗传学 人口遗传学
- 森林生态 森林生态
背景情况:
- 气候变化对森林种植的增长和因适应不良而导致的产量构成风险.
- 目前用于辅助迁移的遗传学模型不能完全考虑累积增长影响或与年龄相关的气候反应.
研究的目的:
- 开发特定种群,气候敏感的顶部高度曲线,用于室内木松和白杉.
- 将通用响应函数集成到增长和收益率模型 (GYPSY) 中,以预测气候变化影响.
- 为缓解气候变化对森林生产力的影响指导辅助迁移战略.
主要方法:
- 利用了加拿大西部内陆木松和白杉的来源试验数据.
- 在GYPSY模型中的顶部高度曲线中集成的通用响应函数.
- 开发出特定人口气候敏感的顶部高度曲线.
主要成果:
- 预计气候变化将对森林生产力产生多种影响,到20世纪50年代,一些地区的森林产量将下降.
- 优选种群的辅助迁移可以保持或提高省级规模的森林生产力.
- 新的模型准确地估计了气候变化对不同人口的最高高度的影响.
结论:
- 已经建立了一种新的方法,将辅助迁移纳入森林管理.
- 气候敏感模型对于减轻气候变化对森林负面影响至关重要.
- 优化的辅助迁移战略对于气候变化下的可持续森林生产力至关重要.
更多相关视频
相关概念视频
Migration
7.9K
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
7.9K
Adaptations that Reduce Water Loss
25.1K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.1K
Methods of Obtaining Topography
56
Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...
56
Global Climate Change
24.2K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.2K
What is Climate?
18.4K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.4K
Responses to Heat and Cold Stress
13.4K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.4K


