节水灌溉Issue(6)：29-35,44,8.DOI:10.12396/jsgg.2025472
生物炭对棉花产量及土壤有机碳含量影响的Meta分析
Effects of Biochar on Cotton Yield and Soil Organic Carbon Contents:A Meta-analysis
摘要
Abstract
Applying biochar can significantly increase cotton yield and soil organic carbon contents.However,considerable uncertainties remain regarding the effects of biochar application on yield increase-carbon sequestration-emission reduction.We performed a meta-analysis of 315 observations from 45 field studies to quantify the effects of biochar on cotton yield and soil organic carbon contents,across varying environmental conditions.The magnitude of such effects varied with climatic factors,soil conditions and farmland management measures.Our results show that:① Biochar addition led to substantial increases in cotton yield(+14.8％)and the soil organic carbon(+25％).② The comprehensive effects of cotton field yield and soil organic carbon are highest under moderate temperature,precipitation,and sunshine conditions.③ Grey desert soil areas can increase cotton yield by 18.7％and SOC by 21.3％,and the effect is significantly enhanced when the soil pH is alkaline.④ An appropriate biochar application rate,along with a small amount of nitrogen fertilizer and an appropriate amount of irrigation,can achieve the synergy of high yield and carbon sequestration.The synergistic effect of high yield and carbon sequestration can be achieved by applying 5～15 t/hm² biochar and 300～450 mm irrigation combined with a small amount of nitrogen fertilizer.⑤ The cotton yield and SOC were more sensitive to changes in temperature and the soil pH,respectively.These findings provide insights into the effect of biochar addition on biogeochemical cycles,functions,and services in cotton planting areas across diverse spatial and temporal scales.关键词
全球数据分析/生物炭施用/棉花/产量/土壤有机碳Key words
global data analysis/biochar addition/cotton/yield/soil organic carbon分类
农业科技引用本文复制引用
康泽佳,李丰琇,马英杰,董其武,张安烨,王梦瑶,文言桥..生物炭对棉花产量及土壤有机碳含量影响的Meta分析[J].节水灌溉,2026,(6):29-35,44,8.基金项目
新疆维吾尔自治区重大科技专项项目(2023A02002) （2023A02002）
国家重点研发计划项目(2022YFD1900405) （2022YFD1900405）
新疆水专项(2024.D-003) （2024.D-003）
新疆农业大学2024年大学生创新训练计划项目(S202410758041). （S202410758041）
