Details

Autor(en) / Beteiligte

• Li, Jiao
• Tian, Dong
• Huang, Rong
• Xu, Guo-Xin
• Li, Jia-Cheng
• Gao, Ming
• Wang, Zi-Fang

Titel

Effects of Straw and Biochar Addition on Soil Carbon Balance and Ecological Benefits in a Rape-maize Rotation Planting System

Ist Teil von

• Huanjing kexue, 2018-09, Vol.39 (9), p.4338

Ort / Verlag

China

Erscheinungsjahr

2018

Quelle

MEDLINE

Beschreibungen/Notizen

• The effects of different straw and biochar applications on the carbon balance of a farmland ecosystem were studied under a rape-maize rotation planting system. The study explored impact of straw and biochar addition on soil carbon sequestration. A field experiment was carried out at the National Monitor Station of Soil Fertility and Fertilizer Efficiency of Purple Soils (Chongqing, China). Five treatments, i.e., control (CK, no organic material), straw only (CS), straw and microorganism (CSD), half straw and half biochar (CSBC), and biochar only (BC), were applied. cumulative emissions of soil total carbon were subsequently monitored. Based on field experiment and survey data, carbon emissions, carbon sequestration, and and economic and environmental benefits were analyzed for soil respiration, soil carbon pool, crop carbon pool, as well as the cost of agricultural inputs after straw and biochar application. The main results were:①Accumulative emissions of soil carbon during two planting seasons were all high