We present a model-based assessment of alternative cultivation strategies for open pond algal biomass production within the conterminous United States (CONUS). Our assessment focuses on two basic cultivation strategies: (1) seasonal rotation of three representative freshwater algal strains that are well suited for warm weather, cold weather, and all-season diverse weather conditions, respectively; and (2) variation between three pond water depths (15 cm, 20 cm, and 25 cm). The enhanced Biomass Assessment Tool (BAT) is applied on a site-specific, hourly basis at 5832 North American Land Data Assimilation System Phase 2 1/8° meteorological model grid cells over a 30-year period (1980–2009) to evaluate the operational strategies. Recognizing that resource management decisions may also consider scales beyond the individual site, we also conduct a regional assessment focused on seven representative climate zones in the CONUS. Results demonstrate that the spatial variability of algal productivity is largely affected by the strain-specific growth response to light and temperature that vary significantly by climate zone and latitude. With a limited set of alternative cultivation strategies, the BAT identified the best-performing combination of cultivation strategies on a site-specific basis that considerably enhances national annual biomass productivity. In particular, the appropriate choice of seasonal strain rotation can significantly dampen climate-driven seasonal and spatial variability in algal productivity over the CONUS.

我们提出了一种基于模型的替代耕种策略，用于美国本土（CONUS）内开放池塘藻类生物量的生产。我们的评估集中在两种基本的栽培策略上：（1）三种分别适合温暖天气，寒冷天气和四季不同天气条件的代表性淡水藻类的季节轮换；（2）三个池塘水深（15 cm，20 cm和25 cm）之间的变化。在30年间（1980-2009年）的30832年北美土地数据同化系统第2阶段1/8°气象模型网格单元中，每小时按特定地点应用增强型生物量评估工具（BAT），以评估经营策略。认识到资源管理决策也可能考虑超出单个站点的规模，我们还针对CONUS的七个代表性气候区进行了区域评估。结果表明，藻类生产力的空间变异性很大程度上受菌株对光和温度的特定生长反应的影响，该反应随气候带和纬度的变化而显着变化。通过有限的替代耕种策略，最佳可行技术在特定地点的基础上确定了最佳耕作策略组合，可大大提高国家年度生物量生产力。特别地，季节性应变旋转的适当选择可以显著抑制气候驱动季节性和空间变化在比CONUS藻类生产率。结果表明，藻类生产力的空间变异性很大程度上受菌株对光和温度的特定生长反应的影响，该反应随气候带和纬度的变化而显着变化。通过有限的替代耕种策略，最佳可行技术在特定地点的基础上确定了最佳耕作策略组合，可大大提高国家年度生物量生产力。特别地，季节性应变旋转的适当选择可以显著抑制气候驱动季节性和空间变化在比CONUS藻类生产率。结果表明，藻类生产力的空间变异性很大程度上受菌株对光和温度的特定生长反应的影响，该反应随气候带和纬度的变化而显着变化。通过有限的替代耕种策略，最佳可行技术在特定地点的基础上确定了最佳耕作策略组合，可大大提高国家年度生物量生产力。特别地，季节性应变旋转的适当选择可以显著抑制气候驱动季节性和空间变化在比CONUS藻类生产率。最佳可行技术确定了特定地点的种植策略最佳组合，可大大提高国家年度生物量生产力。特别地，季节性应变旋转的适当选择可以显著抑制气候驱动季节性和空间变化在比CONUS藻类生产率。最佳可行技术确定了特定地点的种植策略最佳组合，可大大提高国家年度生物量生产力。特别地，季节性应变旋转的适当选择可以显著抑制气候驱动季节性和空间变化在比CONUS藻类生产率。