生态与农村环境学报Issue(3)：340-345,6.DOI:10.11934/j.issn.1673-4831.2015.03.011
稻田施用菌渣土壤团聚体的组成及评价
Effect of Application of Mushroom Residue on Composition of Soil Aggregates in Paddy Field and Its Evaluation
摘要
Abstract
Soil samples were collected from paddy fields different in mushroom residue application rate for analysis in la⁃boratory of composition and stability of soil aggregates. Results show that application of mushroom residue changed the dis⁃tribution of soil aggregates to a certain extent. All in all, soil aggregates>2�0,>0�5-1�0 and>0�25-0�5 mm were domi⁃nant fractions, regardless of treatment (mushroom residue application rate). Application of mushroom residue increased the content of >2�0 mm soil aggregates, and the higher the mushroom residue application rate, the higher the content of>2�0 mm soil aggregates. Mean weight diameter ( MWD ) and geometric mean diameter ( GMD ) increased with rising mushroom residue application rate ( except for MR3) , while fractal dimension decreased with the rising rate. Correlation a⁃nalysis shows that MWD is significant and positively related to GMD, and the contents of>2�0 and>1�0-2�0 mm soil ag⁃gregates are significantly and positively related to MWD and GMD, but negatively related to fractal dimension, though not significantly. MWD and GMD could be used as indices in evaluating stability of>2�0 and>1�0-2�0 mm soil aggregates in soils applied with mushroom residue.关键词
菌渣/土壤团聚体/稻田/稳定性Key words
mushroom residue/soil aggregate/paddy field/stability分类
农业科技引用本文复制引用
栗方亮,王煌平,张青,王秋营,罗涛..稻田施用菌渣土壤团聚体的组成及评价[J].生态与农村环境学报,2015,(3):340-345,6.基金项目
福建省农业科学院面上项目（2013DQB－15）；土壤与农业可持续发展国家重点实验室（中国科学院南京土壤研究所）开放基金（ Y412201437）；“十二五”国家科技支撑计划 （）
