Details

Autor(en) / Beteiligte

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

Titel

Effects of Straw and Biochar Return in Soil on Soil Aggregate and Carbon Sequestration

Ist Teil von

• Huanjing kexue, 2018-01, Vol.39 (1), p.355

Ort / Verlag

China

Erscheinungsjahr

2018

Quelle

MEDLINE

Beschreibungen/Notizen

• The aim of this work is to understand the effects of straw and biochar return in soil on the content, distribution, stability, and relative contribution rate of organic carbon for soil aggregates, which could be used to better understanding the stability of the soil carbon pool and the protection mechanisms under straw and biochar return. In this study, a field experiment was conducted to study the effects of straw and biochar return on soil aggregates and carbon sequestration characteristics in a rape-maize rotation planting system. Five treatments, including a control (no organic material added, CK), straw (CS), straw and microorganism (CSD), Biochar (BC), half straw and half biochar (CSBC), were used. The results indicated that ① Straw and biochar could improve the content of soil organic carbon, and the BC and CSBC treatments increased it by 16.88-17.37 g·kg , values higher than those with the CS and CSD treatments (13.76-14.68 g·kg ); ② Compared with the CK treatment, CS and CSD treatments could increase