长期施肥下不同种植年限碱化草甸土水稳性团聚体及有机碳分布

李大伟; 孟庆峰; 周连仁; 马献发

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长期施肥下不同种植年限碱化草甸土水稳性团聚体及有机碳分布

试验研究

- 长期施肥下不同种植年限碱化草甸土水稳性团聚体及有机碳分布
- Distribution of Carbon and Water Stable Aggregates on Different Planting Years with Long-term Fertilization in Meadow Alkaline Soil
- 水土保持通报 2013年32卷第6期页码：80-83
- 作者机构：
  
  东北农业大学资源与环境学院,黑龙江,哈尔滨,150030
- 作者简介：
- 基金信息：
  
  公益性行业(农业)科研专项“松嫩平原中部盐碱化旱地节水控盐农业高效技术模式研究与示范”(200903001-06-6)
- DOI：
  中图分类号：
- 纸质出版：2013
- 稿件说明：
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李大伟, 孟庆峰, 周连仁, 等. 长期施肥下不同种植年限碱化草甸土水稳性团聚体及有机碳分布[J]. 水土保持通报, 2013,32(6):80-83.

LI Da-wei, MENG Qing-feng, ZHOU Lian-ren, et al. Distribution of Carbon and Water Stable Aggregates on Different Planting Years with Long-term Fertilization in Meadow Alkaline Soil[J]. Bulletin of Soiland Water Conservation, 2013, 32(6): 80-83.
李大伟, 孟庆峰, 周连仁, 等. 长期施肥下不同种植年限碱化草甸土水稳性团聚体及有机碳分布[J]. 水土保持通报, 2013,32(6):80-83. DOI：

LI Da-wei, MENG Qing-feng, ZHOU Lian-ren, et al. Distribution of Carbon and Water Stable Aggregates on Different Planting Years with Long-term Fertilization in Meadow Alkaline Soil[J]. Bulletin of Soiland Water Conservation, 2013, 32(6): 80-83. DOI：

摘要

以松嫩平原碱化草甸土为研究对象

通过长期施用有机肥

对不同种植年限碱化草甸土水稳性团聚体及有机碳的粒径分布特征进行了研究。结果表明

随着种植年限的增加

土壤较大粒级水稳性团聚体(>1mm)含量减少

而0.25~0.5mm粒级水稳性团聚体含量明显增加随种植年限的增加

各粒级碱化草甸土有机碳平均含量呈增加趋势。2~5mm粒级土壤有机碳平均含量最高

随粒级的减小

有机碳含量逐渐减少

0.25~0.5mm粒级水稳性团聚体含量与有机碳含量呈现显著正相关关系种植4a后

碱化草甸土土壤水稳性团聚体及有机碳含量开始呈现稳中有升的趋势。

Abstract

Meadow alkaline soil was taken as research object in Songnen plain.Water-stable aggregates and carbon distribution in meadow alkaline soil were studied through long-term fertilization of manure. The recults indicated that the larger water-stable aggregate content(>1 mm) was decreased with planting years increasing by long-term fertilization of manure

but 0.25-0.5 mm water-stable aggregates was increased significantly.The soil organic carbon(SOC) contents were increased in various size with planting years increasing

SOC contents in size of 2-5 mm were highest

and SOC contents decreased with size decreasing.Using correlation analysis

0.25-0.5 mm water-stable aggregates were significantly related to SOC contents.Water-stable aggregates and SOC contents in meadow alkaline soil slightly increased after continuous 4-year planting.

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