农学学报2026，Vol.16Issue(3)：65-72,8.
不同耕作模式对引黄灌区土壤活性有机质及碳库管理指数的影响
Impact of Different Cultivation Modes on Soil Active Organic Matter and Carbon Storage Management Index in Yellow River Irrigation Area
摘要
Abstract
To study the effects of different tillage measures on soil active organic matter and carbon pool management index,five treatments were set up through field positioning test,including rotary tillage(RT),no-tillage(NT),deep loosening of 35 cm,deep loosening once every 2 years in the fall,and no tillage and tillage alternately(ST2),deep loosening of 35 cm,deep loosening once every 3 years in the fall,no tillage and tilling alternately(ST3),deep loosening 35 cm,deep loosening once a year,deep loosening+tilling,and all the straw returning to the field when tilling(STS),with rotary tillage(RT)as the control to compare and analyze the content of high active organic matter(H-LOM),medium active organic matter(M-LOM),low active organic matter(M-LOM)and none-active organic matter(N-LOM),and the variation characteristics of carbon pool management index(CMI)of different soil layers(0-10,10-20,20-30,30-40 cm).The results showed that the STS treatment increased the total soil organic matter(TOM)by 19.73%on average compared with the RT treatment;rotational tillage and straw return significantly affected the percentage of active organic matter fractions,and the STS treatment increased the content of H-LOM,M-LOM and L-LOM by 20.65%,34.52%and 32.69%on average,respectively compared with the RT treatment;the carbon pool index(CPI)of the NT,ST2,ST3 and STS treatments was higher than that of RT treatment and with different degrees of increase in organic matter content;compared with RT treatment,the carbon pool management indexes of NT,ST2,ST3 and STS treatments with high,medium and low active organic matter were greater than 100,and STS treatment had the highest CPI up to 421.21.Comprehensive analysis,the STS treatments could be used as an effective tillage method to increase soil organic matter content on a large scale.关键词
耕作模式/活性有机质/活性有机质组分/碳库管理指数Key words
cultivation mode/active organic matter/active organic matter components/carbon pool management index分类
农业科技引用本文复制引用
于卓,王成宝,杨思存,罗珠珠,霍琳,温美娟..不同耕作模式对引黄灌区土壤活性有机质及碳库管理指数的影响[J].农学学报,2026,16(3):65-72,8.基金项目
甘肃省重点研发计划项目"引黄灌区农田碳汇能力提升与耕层定向培育模式构建与应用"(22YF7NA038) （22YF7NA038）
农业部公益性行业(农业)科研专项"引黄灌区灰钙土合理耕层构建与试验示范"(201503117) （农业）
甘肃省青年科技基金计划"引黄灌区秸秆还田和施肥对盐碱地土壤氮素组分和微生物的影响机制研究"(21JR7RA724). （21JR7RA724）
