Greenhouse gas emissions from the wheat-maize cropping system under different tillage and crop residue management practices in the North China Plain

2022 ◽  
pp. 153089
Author(s):  
Chao Pu ◽  
Jin-Sai Chen ◽  
Hao-Di Wang ◽  
Ahmad Latif Virk ◽  
Xin Zhao ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Crop Residue ◽  
North China Plain ◽  
North China ◽  
Management Practices ◽  
Cropping System ◽  
Residue Management ◽  
The North ◽  
The North China Plain

scholarly journals Multiple Cropping System Expansion: Increasing Agricultural Greenhouse Gas Emissions in the North China Plain and Neighboring Regions

2019 ◽  
Vol 11 (14) ◽  
pp. 3941 ◽  
Author(s):  
Xueyan Zhang
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
North China Plain ◽  
North China ◽  
Ghg Emissions ◽  
Cropping System ◽  
Multiple Cropping ◽  
Gas Emissions ◽  
The North ◽  
The North China Plain

The increase of agricultural greenhouse gas (GHG) emissions has become a significant issue for China, affecting the achievement of its Nationally Determined Contributions under the Paris Agreement. Expansion of the large-scale multiple cropping system as a consequence of climate warming could be a major driving force of this increase. In this study, life cycle assessment was employed to identify agricultural GHG emissions due to the expansion of the multiple cropping system in the North China Plain and neighboring regions. We found that agricultural greenhouse gas emissions have increased from 41.34 to 120.87 Tg CO2-eq/yr over the past 30 years, and the expansion of the multiple cropping system has contributed to 13.89% of this increment. Furthermore, the increases in straw handling and agricultural inputs which are related to multiple cropping systems have also played an important role. Results of our study demonstrate that the expansion of the multiple cropping system contributes considerably to increases in agricultural GHG emissions in the North China Plain and neighboring regions. Therefore, it can be concluded that the sustained northward expansion of the multiple cropping system will further elevate agricultural GHG emissions in China, and this should be considered while formulating policies to reduce GHG emissions from agriculture.

Lowering soil greenhouse gas emissions without sacrificing yields by increasing crop rotation diversity in the North China Plain

2022 ◽  
Vol 276 ◽  
pp. 108366
Author(s):  
He Xiao ◽  
Harold M. van Es ◽  
Joseph P. Amsili ◽  
Qianqian Shi ◽  
Jingbo Sun ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Crop Rotation ◽  
North China Plain ◽  
North China ◽  
Gas Emissions ◽  
The North ◽  
The North China Plain

scholarly journals Impacts of natural factors and farming practices on greenhouse gas emissions in the North China Plain: A meta-analysis

2017 ◽  
Vol 7 (17) ◽  
pp. 6702-6715 ◽  
Author(s):  
Cong Xu ◽  
Xiao Han ◽  
Roland Bol ◽  
Pete Smith ◽  
Wenliang Wu ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
North China Plain ◽  
North China ◽  
Meta Analysis ◽  
Farming Practices ◽  
Gas Emissions ◽  
The North ◽  
The North China Plain ◽  
Natural Factors

scholarly journals Effects of Straw Return Mode on Soil Aggregates and Associated Carbon in the North China Plain

Agronomy ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 61
Author(s):  
Shoutian Ma ◽  
Zhengrong Kan ◽  
Jianying Qi ◽  
Hailin Zhang
Keyword(s):  
North China Plain ◽  
North China ◽  
Management Practices ◽  
Soil Depth ◽  
Soil Aggregates ◽  
Soil Layer ◽  
Residue Management ◽  
The North ◽  
The North China Plain ◽  
Significant Difference

Crop straw is widely used to manage soil organic carbon (SOC) sequestration as an environmentally friendly practice in the North China Plain. However, little is known about the effects of straw returning modes on SOC sequestration in this region. Thus, a field experiment was conducted to study SOC accumulation and mineralization as well as aggregate stability and aggregate-associated SOC for the following three straw returning modes: no straw returning (NSR), only wheat straw returning (WR), and both wheat and maize straw returning (WR-MR). SOC concentration and storage were higher for WR and WR-MR than for NSR in the 0–20 cm soil layer, respectively (p < 0.05). Although WR and WR-MR resulted in higher mineralization per unit of soil than NSR, no significant difference in mineralization per unit of soil carbon was observed among straw returning modes in the upper soil layer. The mean weight diameters of aggregates at 0–5 cm were higher under treatments with crop retention than under NSR. At this soil depth, the aggregate-associated C concentration and stock for each soil size were significantly decreased by NSR. These findings suggest that WR-MR and WR are effective residue management practices. In particular, WR is the optimal strategy to enhance SOC sequestration, considering other applications of straw (e.g., forage, fuel, or biomass).

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