土壤中氮营养斑研究进展

被引:7
作者
王曙光
侯彦林
机构
[1] 中国科学院生态环境研究中心
[2] 中国科学院生态环境研究中心 北京
[3] 北京
关键词
营养斑; 氮; 土壤; 根系; 生物;
D O I
暂无
中图分类号
S158 [土壤肥力(土壤肥沃性)];
学科分类号
摘要
由于自然和人为因素,营养斑(nutrient patch)在土壤中是普遍存在的。从70年代以来,国外就通过各种模拟方式对土壤中营养斑进行了大量的研究,尤其以对氮营养斑研究居多。研究表明:氮营养斑对新生根系的繁殖影响较为明显,但不同植物反应不一样,影响机理还不很清楚。营养斑也是生物活性较强、种群数量较多区域,在养分循环体系中起着特殊作用。营养斑对土壤的理化性质和生物性质可能有很大的影响,但这方面的研究很欠缺。本文主要对土壤中氮营养班的研究进展做一综述。
引用
收藏
页码:45 / 49
页数:5
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