多种森林种植园在广泛的条件下比单种植园产量更高
Yuhao Feng1, Bernhard Schmid1,2, Michel Loreau3
1Institute of Ecology, College of Urban and Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China.
概括
与单一物种种植园相比,种植多种树木显著提高了森林生长,增加了树木的高度,直径和生物量. 这种生物多样性的好处是有效的重新造林和恢复战略的关键.
科学领域:
- 林业科学
- 生态学
- 生物多样性研究
背景情况:
- 多种树种植在林业和恢复中很常见,以改善木材和生态系统服务.
- 目前还没有系统地评估其促进种群增长的有效性.
研究的目的:
- 对多种植对森林种群生长的影响进行系统评估.
- 评估种植园中不同树种组合的有效性.
主要方法:
- 编制了一个全球数据集,比较匹配的单种和多种种植园.
- 分析了树木高度,乳房高度直径和地面生物质的差异.
主要成果:
- 多种群的平均树木高度 (5.4%),DBH (6.8%) 和地表生物量 (25.5%) 比单种群高得多.
- 积极的影响归因于跨物种的互补性.
- 结果根据叶子特征,树叶年龄,密度和温度进行调整.
结论:
- 多种种植显然有助于森林生长和生物质生产.
- 跨物种互补性是这些好处的主要驱动因素.
- 结果支持设计有效的植树和再造林战略, 整合生物多样性原则.
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