不同结合形态腐殖质对细质沙土肥力的影响  

Effects of Different Form Humus on Fine Sandy Soil

作　　者：陈有(钅监)[1] 熊顺贵[1] 

机构地区：[1]中国农业大学土壤和水科学系,100094

出　　处：《中国农业大学学报》1997年第S2期97-100,共4页Journal of China Agricultural University

摘　　要：通过分析细质沙土(河北大名县沙土区)中不同结合形态腐殖质、CEC、全 N、有效钾等多项指标,发现细质沙土有机质总量的80%以上与矿质颗粒相结合,以有机无机复合体形式存在。由于紧结态腐殖质在总结合态腐殖质中所占比例较大,故对土壤 CEC、全 N 和有效钾的影响比松结态和稳结态要大。A fine sandy soil is determined with different form humus,CEC,total N and available K.It is found that more than 80% of organic matter exists in organo-inorganic complex.Different form humus has a different role in soil.The tightly-combined humus shows much more important influence on soil CEC,total N and available K content than loosely-combined and stably-combined humus because of its large proportion in the com- bine humus.

关 键 词：重组有机质 松结态腐殖质 稳结态腐殖质 紧结态腐殖质 

分 类 号：S158[农业科学—土壤学]