G2TT
来源类型Articles
规范类型论文
DOI10.1016/j.agee.2015.08.022
ISSN0167-8809
Nitrous oxide emissions along a gradient of tropical forest disturbance on mineral soils in Sumatra
Aini, F.K.; Hergoualc'h, K.; Smith, J.U.; Verchot, L.V.
发表日期2015
出处Agriculture, Ecosystems and Environment 214: 107-177
出版年2015
语种英语
摘要

Forest conversion to oil palm and rubber plantations is a common land-use change in Jambi, Sumatra due to the high economic demand of forest border communities. The environmental effects of such conversions have raised global concerns due to the potential to increase nitrous oxide emissions (N2O) to the atmosphere. To quantify this effect, we conducted a series of monthly N2O flux measurements between July 2010 and August 2011 using a static chamber method in an undisturbed forest, a disturbed forest, a one year old rubber plantation, a twenty year old rubber plantation and an eight year old oil palm plantation. All plantations belonged to smallholders and were usually not fertilized. In order to understand the effect of management intensification on N2O fluxes, we applied nitrogen (N) as urea (33.3 kg N ha-1) in the oil palm plantation in April 2011 and monitored the emissions intensively until 28 days after fertilizer application. Nitrous oxide consumption was significant in these weathered soils, accounting for 30% of recorded flux data, although 17% of the negative fluxes fell below detection limits. Most of these happened in the oil palm plantation and undisturbed forest. Annual N2O emission rates amounted to 1.73 ± 0.48, 1.22 ± 0.27, 1.34 ± 0.36, 1.02 ± 0.27 and 1.04 ± 0.39 kg N ha-1 y-1 in the undisturbed forest, disturbed forest, one year old rubber plantation, twenty year old rubber plantation and oil palm plantation, respectively. Forest disturbance and conversion to rubber and oil palm plantation did not significantly affect annual N2O emission rates. However in the oil palm plantation, the amount of N emitted as N2O was high (3.1 ± 1.2% of the fertilizer N applied), so at a typical fertilizer application rate of 141 kg N ha-1 y-1, annual emissions would have amounted to 4.4 ± 1.6 kg N ha-1 y-1, more than twice the emission rate in the undisturbed forest. Dry mass and nitrogen mass in standing litter, distance to the nearest termite nest, rainfall on the day of measurement and air temperature were the key factors that predicted annual N2O fluxes across the land-use change transitions.

主题forest conservation ; land use change ; fertilizers ; oil palm ; rubber
区域Indonesia
URLhttps://www.cifor.org/library/5715/
来源智库Center for International Forestry Research (Indonesia)
引用统计
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/93095
推荐引用方式
GB/T 7714
Aini, F.K.,Hergoualc'h, K.,Smith, J.U.,et al. Nitrous oxide emissions along a gradient of tropical forest disturbance on mineral soils in Sumatra. 2015.
条目包含的文件
文件名称/大小 资源类型 版本类型 开放类型 使用许可
01678809.jpg(10KB)智库出版物 限制开放CC BY-NC-SA浏览
AAini1501.pdf(542KB)智库出版物 限制开放CC BY-NC-SA浏览
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Aini, F.K.]的文章
[Hergoualc'h, K.]的文章
[Smith, J.U.]的文章
百度学术
百度学术中相似的文章
[Aini, F.K.]的文章
[Hergoualc'h, K.]的文章
[Smith, J.U.]的文章
必应学术
必应学术中相似的文章
[Aini, F.K.]的文章
[Hergoualc'h, K.]的文章
[Smith, J.U.]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 01678809.jpg
格式: JPEG
文件名: AAini1501.pdf
格式: Adobe PDF
此文件暂不支持浏览

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。