Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central China
| العنوان: | Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central China |
|---|---|
| المؤلفون: | Guo, L.J, Zhang, R.D, Zhang, Z.S, Cao, C.G, Li, C.F |
| المصدر: | Journal of soil science and plant nutrition v.15 n.3 2015 SciELO Chile CONICYT Chile instacron:CONICYT Journal of soil science and plant nutrition, Volume: 15, Issue: 3, Pages: 737-750, Published: SEP 2015 |
| بيانات النشر: | Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | no-tillage, Biomass, ridge tillage, CO2 flux, dissolved organic C |
| الوصف: | Differences in soil CO2 emissions between no-tillage (NT) and conventional intensive tillage have been well assessed in paddy fields, but few studies evaluate the effects of different NT modes on soil CO2 emissions. Therefore, a field experiment was conducted to assess paddy soil CO2 flux as affected by different NT modes ENT#091;ridge cultivation with NT (RNT) and conventional flat cultivation with NT (FNT)ENT#093; and its influencing factors during the 2012-2014 rice growing seasons in central China. Soil CO2 fluxes were determined by a LI-8100A soil CO2 flux system. The mean soil CO2 fluxes on the ridges in the RNT treatment increased by 49%, 52% and 35% compared with those on the flat land in the FNT treatment in 2012, 2013 and 2014, respectively. Cumulative CO2 its emissions ranged from 1042 g m-2 to 1489 g m-2 from the RNT treatment, and from 724 g m-2 to 1016 g m-2 for the FNT treatment. Moreover, soil CO2 emissions were significantly correlated with dissolved organic C, aboveground biomass and root biomass. Therefore, our results suggesting that annual rice-fallow-oilseed rape rotation should be considered to assess the effects of tillage systems on soil CO2 emission. |
| وصف الملف: | text/html |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6b0ca8dde8ffe5d8c1a3ae54c60be39c http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000300015 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.dedup.wf.001..6b0ca8dde8ffe5d8c1a3ae54c60be39c |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |