...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Global Ecology and Conservation >Latitudinal and climate effects on key plant traits in Chinese forest ecosystems
【24h】

Latitudinal and climate effects on key plant traits in Chinese forest ecosystems

机译：纬度和气候对中国森林生态系统关键植物性状的影响

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Abstracts A long-standing goal of ecology and forest management is to understand the environmental controls of resource utilization strategy of plants along geographical gradients. However, the mechanisms that guide this phenomenon, especially along latitude gradients, remain unclear. Using key leaf functional trait data of 1185 species within 120 sites in Eastern and Western China, we quantified the relationships between plant traits, namely leaf area (LA), specific leaf area (SLA), leaf nitrogen content, leaf phosphorus content, leaf dry matter content (LDMC) and leaf delta sup13/supC (d sup13/supC) content, and local climate along the latitude in Eastern and Western China. Our results revealed that: (1) Plant traits showed a wide variation across the study locations in China. The variation in plant traits was strongly correlated with latitude. (2) In Eastern China, latitude alone explained 54% and 53% of the variation in N:P and leaf phosphorus content (Pmass (g/kg)), respectively. In Western China, latitude alone explained 75% of the variation in leaf area. In Eastern China, most plant traits are significantly correlated with each other. However, this phenomenon is not obvious in Western China. (3) Immediate climate factors (mean climate in the month when the leaf traits were sampled) contributes most to explaining functional traits related to leaf nutrients, such as leaf nitrogen content (Nmass (g/kg), Narea (g/cmsup2/sup)), leaf phosphorus content (Pmass (g/kg), Parea (g/cmsup2/sup)), and annual mean climate contributes more to explaining functional traits related to leaf survival strategies. (4) In Eastern China, immediate climate and annual mean climate variables can explain the variance of 39.2% and 41.3% of plant traits variation, respectively. In Western China, the effect size of corresponding factors are 23.4% and 25.2%, respectively.
机译：摘要生态和森林管理的长期目标是了解沿地理梯度的植物资源利用策略的环境控制。但是，引导这种现象的机制，特别是沿着纬度梯度的机制，仍然不清楚。利用中国东部和西部120个地点的1185种关键叶片功能性状数据，我们定量了植物性状之间的关系，即叶面积（LA），比叶面积（SLA），叶氮含量，叶磷含量，叶干燥物质含量（LDMC）和叶片δ 13 C（d 13 C）含量，以及中国东部和西部沿纬度的局部气候。我们的研究结果表明：（1）植物性状在中国各个研究地点之间表现出很大的差异。植物性状的变化与纬度密切相关。 （2）在中国东部地区，仅纬度就能解释N：P和叶磷含量（质量（g / kg））的54％和53％。在中国西部，仅靠纬度就能解释75％的叶片面积变化。在中国东部，大多数植物性状相互之间有着显着的相关性。但是，这种现象在中国西部并不明显。 （3）直接的气候因素（采样叶片性状的月份中的平均气候）对解释与叶片养分有关的功能性状的影响最大，例如叶片氮含量（Nmass（g / kg），Narea（g / cm 2 ）），叶片磷含量（Pmass（g / kg），Parea（g / cm 2 ））和年平均气候有助于解释与叶片存活相关的功能性状策略。 （4）在中国东部，即时气候和年平均气候变量可以分别解释植物性状变异的39.2％和41.3％。在中国西部，相应​​因素的影响大小分别为23.4％和25.2％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号