期刊论文

Shakoor, Awais

英文

Science of The Total Environment

0048-9697

2021

750

142299

10.1016/j.scitotenv.2020.142299

Fig. 1 shows the overall effect sizes ( lnRR¯) of NT as compared to CT on CO2 (n = 116), N2O (n = 181), CH4 (n = 168) emissions and crop yield (n = 156). Overall, NT showed significantly positive effect on all three GHGs emissions as compared to CT. On average, NT significantly increased CO2, N2O, and CH4 emissions by 7.1% (95% CI = 4.3%, 9.8%), 11.9% (95% CI = 8.3%, 15.7%), and 20.8% (95% CI = 18.0%, 10.8%), respectively (Fig. 1). In contrast, crop yields were not significantly different ( lnRR¯

本校为其他机构

No-tillage (NT) practice is extensively adopted with aims to improve soil physical conditions, carbon (C) sequestration and to alleviate greenhouse gases (GHGs) emissions without compromising crop yield. However, the influences of NT on GHGs emissions and crop yields remains inconsistent. A global meta-analysis was performed by using fifty peer-reviewed publications to assess the effectiveness of soil physicochemical properties, nitrogen (N) fertilization, type and duration of crop, water management and climatic zones on GHGs emissions and crop yields under NT compared to conventional tillage ...