• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Scientific Reports >CO2 Emission Increases with Damage Severity in Moso Bamboo Forests Following a Winter Storm in Southern China
【2h】

CO2 Emission Increases with Damage Severity in Moso Bamboo Forests Following a Winter Storm in Southern China

机译：中国南方冬季暴风雨后毛竹林中的CO2排放随着破坏程度的增加而增加

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Despite the prevalence of disturbances in forests, the effects of disturbances on soil carbon processes are not fully understood. We examined the influences of a winter storm on soil respiration and labile soil organic carbon (SOC) of a Moso Bamboo (Phyllostachys heterocycle) plantation in the Wuyi Mountains in Southern China from May 2008 to May 2009. We sampled stands that were damaged at heavy, moderate, and light levels, which yielded aboveground biomass inputs to the soil at 22.12 ± 0.73 (mean ± 1 s.e.m.), 10.40 ± 1.09, and 5.95 ± 0.73 Mg per hectare, respectively. We found that soil respiration rate and annual cumulative CO2 emissions were significantly higher in heavily damaged sites than moderately and lightly damaged sites. Soil temperature was the most important environmental factor affecting soil respiration rate across all studied stands. However, soil respiration sensitivity to temperature (Q10) decreased in heavily damaged sites. Microbial biomass carbon and its proportion to total SOC increased with damage intensity. Soil respiration rate was positively correlated to microbial biomass carbon and soil moisture. Our results indicated that the increase of soil respiration following canopy disturbance from winter storm resulted from increased microbial biomass carbon, soil moisture, and temperature.
机译：尽管在森林中普遍存在干扰，但是干扰对土壤碳过程的影响尚不完全清楚。我们调查了2008年5月至2009年5月冬季暴风雨对中国南部武夷山毛竹林（人工毛竹林）土壤呼吸和不稳定土壤有机碳（SOC）的影响。 ，中等和轻度水平，分别向土壤产生的地上生物量输入量为每公顷22.12±0.73 Mg（平均±1 sem），10.40±1.09和5.95±0.73 Mg。我们发现，重灾区的土壤呼吸速率和年累积CO2排放量明显高于中度和轻度区。在所有研究林分中，土壤温度是影响土壤呼吸速率的最重要环境​​因素。然而，在严重受损的地区土壤呼吸对温度的敏感性（Q10）下降。微生物生物量碳及其在总SOC中的比例随损伤强度的增加而增加。土壤呼吸速率与微生物量碳和土壤水分呈正相关。我们的结果表明，冬季暴风雨引起的冠层扰动后土壤呼吸的增加是由于微生物生物量碳，土壤湿度和温度增加所致。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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