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2008–2013年川中丘陵区典型农田生态系统大气氮沉降数据集
Atmospheric nitrogen deposition in a typical agricultural-ecosystem of the central Sichuan Basin of China (2008–2013)
: 2018 - 11 - 26
: 2018 - 12 - 20
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摘要&关键词
摘要:大气氮沉降主要以干湿(降雨)沉降将有机和无机氮带入生态系统,是氮素生物地球化学循环的重要环节之一。在一定区域范围或典型生态系统内的大气氮干湿沉降观测,是揭示大气氮干湿沉降组分、时空格局及其影响因素最为直接有效的方法。盐亭站是CERN和CNERN布局的以中亚热带四川盆地紫色土丘陵区为核心研究对象的基础性、公益性的农田生态系统试验与观测平台,其大气氮沉降的观测于2008年开始持续至今。本文重点整理了盐亭站综合观测场获取的2008–2013年大气氮湿沉降的月均浓度及月沉降量,以及2011–2013年大气氮干沉降的月均沉降速率、浓度及月沉降量观测数据,以期为该区域大气活性氮污染状况诠释,氮沉降的环境养分输入以及生态环境效应评估提供科学数据支撑。
关键词:大气氮;干沉降;湿沉降;川中丘陵区
Abstract & Keywords
Abstract: As a crucial process of the nitrogen biogeochemical cycle, atmospheric nitrogen (N) deposition brings organic and inorganic nitrogen into the ecosystem in the form of dry and wet (rainfall) depositions. A most straightforward and effective way to reveal components and spatiotemporal pattern of the atmospheric nitrogen deposition and its influencing factors is to monitor the depositions in a region or typical ecosystem. As part of CERN and CNERN, Yanting Station is a fundamental, public-welfare platform for agricultural ecosystem experimentation and observation oriented towards the subtropical purple soil area of Sichuan Basin. The station has started its observation of dry and wet atmospheric deposition since 2008. This dataset includes the monthly average concentration and volume of wet nitrogen deposition in 2008-2013, and the monthly average rate, concentration, volume and rate of dry nitrogen deposition in 2011-2013. This dataset not only helps understand air pollution by reactive nitrogen, but also provides statistical support for assessing local input of environmental nutrients by nitrogen deposition and its impact on ecological environment.
Keywords: atmospheric nitrogen; dry deposition; wet deposition; central Sichuan Basin
稿件与作者信息
高美荣
Gao Meirong
gmr@imde.ac.cn
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