期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 707, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2019.134420
关键词
Nitrous oxide; Turf; Nitrogen; Methane
资金
- La Trobe University through the Sport, Exercise and Rehabilitation RFA
Managed turf is a potential net source of greenhouse gas (GHG) emissions. While most studies to date have focused on non-sports turf, sports turf may pose an even greater risk of high GHG emissions due to the generally more intensive fertiliser, irrigation and mowing regimes. This study used manual and automated chambers to measure nitrous oxide (N2O) and methane (CH4) emissions from three sports fields and an area of non-sports turf in southern Australia. Over 213 days (autumn to late spring), the average daily N2O emission was 37.6 g N ha(-1)day(-1) at a sports field monitored at least weekly and cumulative N2O emission was 2.5 times higher than the adjacent non-sports turf. Less frequent seasonal sampling at two other sports fields showed average N2O daily emission ranging from 26 to 90 g N ha(-1) day(-1). Management practices associated with periods of relatively high N2O emissions were surface renovation and herbicide application. CH4 emissions at all of the sports fields were generally negligible with the exception of brief periods when soil was waterlogged following heavy rainfall where emissions of up to 1.3 kg C ha(-1) day(-1) were recorded. Controlled release and nitrification inhibitor containing fertilisers didn't reduce N2O, CH4 or CO2 emissions relative to urea in a short term experiment. The N2O emissions from the sports fields, and even the lower emissions from the non-sports turf, were relatively high compared to other land uses in Australia highlighting the importance of accounting for these emissions at a national level and investigating mitigation practices. (C) 2019 Elsevier B.V. All rights reserved.
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。
推荐
暂无数据