4.6 Article

Season, but not experimental warming, affects the activity and temperature sensitivity of extracellular enzymes

期刊

BIOGEOCHEMISTRY
卷 131, 期 3, 页码 255-265

出版社

SPRINGER
DOI: 10.1007/s10533-016-0277-6

关键词

Decomposition; Extracellular enzymes; Temperature sensitivity; Experimental warming

资金

  1. NSF [DEB-1242013]
  2. University of Georgia's Office of the Vice-President for Research (OVPR)
  3. Direct For Biological Sciences
  4. Division Of Environmental Biology [1242013] Funding Source: National Science Foundation
  5. Direct For Biological Sciences
  6. Emerging Frontiers [1318164] Funding Source: National Science Foundation
  7. Emerging Frontiers
  8. Direct For Biological Sciences [1137364] Funding Source: National Science Foundation

向作者/读者索取更多资源

Climate change may affect the microbial production and temperature sensitivity of extracellular enzymes that release carbon (C) and nutrients from soil organic matter. We measured the response of six hydrolytic enzymes involved in C, nitrogen (N), and phosphorus (P) degradation to experimental warming in a mixed-deciduous forest persisting on highly-weathered Ultisols (Whitehall Forest, Georgia, US). We found that warming produced no consistent enzyme response. However, we observed significant seasonal variation in enzyme activities, temperature sensitivities and elemental enzyme ratios (C:N and C:P). Seasonal differences in enzyme activity and temperature sensitivity were best explained by soil moisture and temperature. Our results suggest that seasonal dynamics in soil microclimate, organic matter supply, and microbial demand exert more control on enzyme dynamics than does a uniform increase in soil temperature.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据