土壤保肥-供肥机理及其调节Ⅳ.棕壤型菜园土肥力的调节与培育及其作用实质

应用生态学报 ›› 2000, Vol. ›› Issue (4): 532-534.

土壤保肥-供肥机理及其调节Ⅳ.棕壤型菜园土肥力的调节与培育及其作用实质

陈利军, 周礼恺

中国科学院沈阳应用生态研究所陆地生态系统痕量物质生态过程开放实验室, 沈阳110015

收稿日期:1999-09-01 修回日期:1998-12-14 出版日期:2000-07-25
通讯作者: 陈利军,男,1968年生,理学博士,副研究员.主要从事土壤酶学、土壤肥力学与土壤植物营养学研究,发表论文20余篇.
基金资助:
国家自然科学基金资助项目(49571044)

Mechanism of nutrient preservation and supply by soil and its regulation IV. Fertility regulation and improvement of brown earth type vegetable garden soil and their essence

CHEN Lijun, ZHOU Likai

Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110015

Received:1999-09-01 Revised:1998-12-14 Online:2000-07-25

摘要/Abstract

摘要： 棕壤型菜园土肥、瘦地盆栽试验对土壤肥力的调节培育及作用实质的研究表明,在不同的培肥措施下,肥、瘦地的营养物质含量与对照相比没有普遍提高,而土壤微团聚体的团聚度增加,不同粒级微团聚体的比例更趋合理.土壤生产力水平与土壤肥力水平的本质代表-特征微团聚体比例间没有显著的相关关系.试验证明土壤肥力培育的实质在于从根本上改变了土壤的保肥供肥能力,而基于土壤本质属性的土壤特征微团聚体的比例比土壤营养物质含量与土壤生产力水平更适于作为土壤肥力水平及培肥效果评价的指标.

Abstract: Pot experiment studies on the fertility regulation and improvement of fertile and infertile brown earth type vegetable garden soils and their functionary essence show that under conditions of taking different soil fertility improvement measures,the nutrient contents in fertile and infertile soils were not always higher than the controls,but the aggregation densities of soil microaggregates were increased,and the proportion of different microaggregates was more rational.There was no significant relationship between soil productivity and soil microaggregates proportion.It is proved that the essence of soil fertility improvement consists in the ultimate change of the preservation and supply capacities of soil nutrients,and the proportion of soil microaggregates could be an integrative index to evaluate the level of soil fertility and the efficiency of soil improvement.

陈利军, 周礼恺. 土壤保肥-供肥机理及其调节Ⅳ.棕壤型菜园土肥力的调节与培育及其作用实质[J]. 应用生态学报, 2000, (4): 532-534.

CHEN Lijun, ZHOU Likai. Mechanism of nutrient preservation and supply by soil and its regulation IV. Fertility regulation and improvement of brown earth type vegetable garden soil and their essence[J]. Chinese Journal of Applied Ecology, 2000, (4): 532-534.

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