长期农牧结合对碱化草甸土活性有机质的影响  

Effect of Active Organic Matter of Long-term Combination of Farming with Animal Husbandry on Meadow Alkali Soil

作　　者：郑余[1] 周连仁[1] 傅博思远[1] 依洪涛[1] 

机构地区：[1]东北农业大学资源与环境学院,黑龙江哈尔滨150030

出　　处：《水土保持学报》2013年第2期215-217,227,共4页Journal of Soil and Water Conservation

基　　金：公益性行业(农业)科研专项(200903001-06-6)

摘　　要：通过测定长期农牧结合不同培肥年限条件下,彻底改良各活性有机质的含量,探讨不同改良年限处理对活性有机质的影响。结果表明,长期农牧结合能够提升各活性有机质的含量,改良15年中逐年增长;改良1～15年中,农牧结合改良对中活性有机质的增加较为敏感。3种活性有机质之间都呈显著或极显著相关,其中,高活性有机质与中活性有机质相关系数为0.981**,高活性有机质与活性有机质相关系数为0.984**,中活性有机质与活性有机质相关系数为0.954**。3种活性有机质与总有机质的相关性说明,活性有机质虽然区别于总有机质,但又与总有机质紧密相连,它们是土壤总有机质的一部分。Through the determination of long-term combination of farming with animal husbandry, completely improve the content of different labile organic matter in soil and then, the influence of improved treatment to them on the different fixed number of year was discussed. The test results show that, long-term combination of farming with animal husbandry can improve the content of soil labile organic matter, which improves year by year in 1 year to 15-year improved treatment. The treatment for 1 - 15 years, combination of farming with animal husbandry is sensitive to the improvement of soil labile organic matter. The three kinds of labile organic matter have significant correlation or high significant correlation, whose correlation coefficient are respectively highly labile organic matter and middle labile organic matter in 0. 981＊ ＊ , highly labile organic matter and labile organic matter in 0. 984＊＊ , middle labile organic matter and labile organic matter in 0. 954＊＊. The correlations among these three labile organic matters and total organic matter show that, though it＇s different from total organic matter, labile organic matter is closely linked, whose are one part of total organic matter.

关 键 词：活性有机质 长期施肥 碱化草甸土 

分 类 号：S156.4[农业科学—土壤学] S153.621[农业科学—农业基础科学]