...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Estuarine Coastal and Shelf Science >Seasonal variations of net ecosystem (CO_2) exchange in the Indian tropical mangrove forest of Pichavaram
【24h】

Seasonal variations of net ecosystem (CO_2) exchange in the Indian tropical mangrove forest of Pichavaram

机译：净生态系统（CO_2）交换在Pichavaram的印度热带美洲红树林的季节变化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Mangrove ecosystems play a crucial role in the global carbon cycle. However, the carbon fluxes in the mangrove ecosystems found in the Indian subcontinent are not well understood. Here, for the first time, we estimate the net ecosystem exchange (NEE) in a mangrove ecosystem at Pichavaram, southeast India, using the eddy covariance method for the period October 2017-September 2018. The half-hourly daytime NEE varied from-11.05 mu mol m(-2) s(-1) in the winter months (January-March 2018) to -6.06 mu mol m(-2) s(-1) during the summer (April 2018). The estimated annual evapotranspiration during the study period was 610 mm, whereas the precipitation was 653 mm (much dryer than the long-term average). The half-hourly NEE data were gap filled and partitioned to estimate the gross primary productivity (GPP) and ecosystem respiration (Reco). The estimated annual GPP was 1466 gC m(-2) and Reco was 1283 gC m(-2). The mangrove forest appeared to be a modest sink of atmospheric CO2, with an annual average net ecosystem productivity of 183 gC m(-2). However, in the summer months, it acted as a source. We observed that the mangrove CO2 fluxes strongly responded to environmental factors such as temperature, rainfall, and salinity. However, it is noteworthy that the carbon sink capability may decline in the future due to rising temperatures, decreasing rainfall patterns, variation in salinity, and changes in tidal inundation patterns.
机译：红树林生态系统在全球碳循环中发挥着至关重要的作用。然而，在印度次大陆发现的红树林生态系统中的碳通量尚不清楚。在这里，我们首次估计在印度东南部的Pichavaram的红树林生态系统中估计了净生态系统交易所（NEE），使用了2017年10月至2018年10月期间的漩涡协方差方法。半小时的白天NEE来自-11.05 Mu Mol M（-2）S（-1）在夏季（2018年1月至3月）至-6.06 mm mol m（-2）s（-1）季节（2018年4月）。研究期间的估计年蒸散量为610毫米，而沉淀为653毫米（比长期平均干燥）。半小时NEE数据填补并划分以估计总初级生产力（GPP）和生态系统呼吸（RECO）。估计的年度GPP是1466 GC M（-2），RECO为1283 GC M（-2）。红树林森林似乎是大气二氧化碳的适度水槽，年平均净生态系统生产力为183 GC M（-2）。但是，在夏季，它充当了一个来源。我们观察到红树林二氧化碳助焊剂强烈反应温度，降雨和盐度等环境因素。然而，值得注意的是，由于温度上升，降雨量，盐度变化以及潮汐淹没模式的变化，将来可能会在未来下降。

著录项

  • 来源
    《Estuarine Coastal and Shelf Science》 |2020年第30期|106828.1-106828.16|共16页
  • 作者

    Gnanamoorthy Palingamoorthy; Selvam V; Burman Pramit Kumar Deb; Chakraborty S.; Karipot A.; Nagarajan R.; Ramasubramanian R.; Song Qinghai; Zhang Yiping; Grace John;

  • 作者单位

    MS Swaminathan Res Fdn Coastal Syst Res Chennai Tamil Nadu India|Chinese Acad Sci Key Lab Trop Forest Ecol Xishuangbanna Trop Bot Garden CAS Menglun Peoples R China;

    MS Swaminathan Res Fdn Coastal Syst Res Chennai Tamil Nadu India;

    Indian Inst Trop Meteorol Ctr Climate Change Res Minist Earth Sci MoEs Pune Maharashtra India|Savitribai Phule Pune Univ Dept Atmospher & Space Sci Pune Maharashtra India;

    Indian Inst Trop Meteorol Ctr Climate Change Res Minist Earth Sci MoEs Pune Maharashtra India|Savitribai Phule Pune Univ Dept Atmospher & Space Sci Pune Maharashtra India;

    Savitribai Phule Pune Univ Dept Atmospher & Space Sci Pune Maharashtra India;

    MS Swaminathan Res Fdn Coastal Syst Res Chennai Tamil Nadu India;

    MS Swaminathan Res Fdn Coastal Syst Res Chennai Tamil Nadu India;

    Chinese Acad Sci Key Lab Trop Forest Ecol Xishuangbanna Trop Bot Garden CAS Menglun Peoples R China;

    Chinese Acad Sci Key Lab Trop Forest Ecol Xishuangbanna Trop Bot Garden CAS Menglun Peoples R China;

    Univ Edinburgh Sch GeoSci Edinburgh EH9 3FF Midlothian Scotland;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Mangrove wetland; Carbon exchange; Net ecosystem productivity; Eddy covariance;

    机译：红树林湿地;碳交换;净生态系统生产力;涡旋协方差;

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