生物能源作物对生物多样性的对比影响
Nathan L Haan1,2,3, Gian N M Benucci2,4, Cynthia M Fiser1
1Department of Entomology, Michigan State University, East Lansing, MI, USA.
Science advances
|September 22, 2023
概括
生物能源作物系统对生物多样性产生影响. 植物多样性的多年生植物系统显著提高了动物多样性,与一年生或简单的多年生作物不同,提供了保护潜力.
科学领域:
- 生态生态学 生态生态学
- 农业科学 农业科学
- 保护生物学 保护生物学
背景情况:
- 农业是全球生物多样性丧失的主要驱动因素.
- 生物能源作物系统是影响未来生物多样性结果的关键时刻.
- 了解不同生物能源作物策略对生态的影响对于可持续的土地管理至关重要.
研究的目的:
- 在十个不同的生物能源作物系统中量化植物,无脊椎动物,脊椎动物和微生物的生物多样性.
- 将各种一年生和多年生生物能源作物系统的生物多样性好处与基线 (玉米) 进行比较.
- 评估不同种植系统在农业景观中的保护价值潜力.
主要方法:
- 10个生物能源作物系统的长期实验阵列.
- 量化每个系统内的植物,无脊椎动物,脊椎动物和微生物多样性.
- 在不同种植系统类型中对生物多样性指标进行比较分析.
主要成果:
- 与玉米相比,年度作物系统没有显示生物多样性的好处.
- 简单的多年草系统只提供了适度的生物多样性增长.
- 植物多样性的多年生系统比一年生或简单的多年生系统表现出明显更高的动物群丰富性.
- 微生物丰富度各不相同,一些群体对植物多样性做出了积极反应.
结论:
- 植物多元多年生生物能源作物系统对生物多样性具有重要的保护价值.
- 越来越多地依赖年度生物能源作物可能会延续生物多样性的负面影响.
- 简单的多年草系统为生物多样性提供了相对于一年生作物系统的有限改进.
- 未来的生物能源作物系统设计必须优先考虑植物多样性,以有效保护.
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