山西农业大学学报（自然科学版）2024，Vol.44Issue(1)：70-78,9.DOI:10.13842/j.cnki.issn1671-8151.202306034
施用粪肥对我国北方农田土壤呼吸温度敏感性的影响
The impact of applying manure on the sensitivity of soil respiration temperature in cropland of north-ern China
摘要
Abstract
[Objective]This study was designed to investigate the effect of manure application on the temperature sensitivity of soil respiration(expressed by Q10)and its main driving factors in northern China's croplands.The objective was to develop ap-propriate agricultural practices to reduce CO2 emissions from farmland.[Methods]Domestic and international literature on the influence of manure application on soil respiratory temperature sensitivity were collected from CNKI,Wanfang Data,and Web of Science databases.Using keywords like"manure","soil respiration","temperature sensitivity"and"Northern China",a total of 104 sets of experimental data were extracted from 16 published studies.Meta-analysis was used to investigate how various factors affected soil respiratory temperature sensitivity Q10 under different manure application conditions.[Results]The results indicated that manure application significantly increased soil respiration temperature sensitivity by 8.11% .Pig manure exhibit-ed a significantly higher increase rate of 12.72% compared to chicken manure of 5.56% .The highest increase in soil respira-tion temperature sensitivity was observed at manure application rate≤15 000 kg·hm-2(9.28%).Sole manure application showed a substantially greater increase(11.96%)than the combination of manure with chemical fertilizer(5.22%).In addi-tion,the increase was significantly higher with soil organic carbon≥12 g·kg-1(7.17%)compared to 6～12 g·kg-1(2.23%),and initial pH≥7(8.11%)versus pH<7(3.48%).Under varied climatic conditions,the increase in sensitivity was signifi-cantly higher for annual mean temperature≤5℃(8.83%)compared to 5～10℃ and≥10℃.Similarly,an annual rainfall of 400～600 mm(8.98%)displayed a significantly higher increase than≤400 mm(2.71%)and≥600 mm(-3.13%).Fur-thermore,the results from random forest(RF)analysis highlighted soil organic carbon(SOC)content as the key factor affect-ing change in soil respiration temperature sensitivity,explaining 42.6% of the variance.[Conclusion]Overall,the application of chemical fertilizer combined with chicken manure at rates exceeding>15 000 kg·hm-2 not only exhibited the smallest increase in soil respiration sensitivity to temperature in farmland of northern China,but also effectively reduced soil carbon emission,po-tentially contributing to global warming mitigation efforts.Additionally,soil organic carbon content emerged as the main driv-ing factors affecting soil respiration temperature sensitivity under manure application in northern China.关键词
粪肥/土壤呼吸/温度敏感性/北方/整合分析Key words
Manure/Soil respiration/Temperature sensitivity/North China/Meta-analysis分类
农业科技引用本文复制引用
柏凯栋,孙力扬,王晋峰,靳东升,李建华,徐明岗..施用粪肥对我国北方农田土壤呼吸温度敏感性的影响[J].山西农业大学学报（自然科学版）,2024,44(1):70-78,9.基金项目
山西省重大研发计划项目(202201140601028) （202201140601028）
