苎麻对红壤旱地土壤团聚体及其特性的影响

钟义军; 武琳; 黄欠如; 廖绵清; 叶川; 成艳红; 孙永明; 章新亮; 熊春贵

doi:10.13961/j.cnki.stbctb.2014.02.017

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苎麻对红壤旱地土壤团聚体及其特性的影响

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- 苎麻对红壤旱地土壤团聚体及其特性的影响
- Effect of Ramie on Soil Aggregate and Its Characteristics in Red Soil Region of South China
- 水土保持通报 2014年33卷第2期页码：78-82
- 作者机构：
  
  1. 江西省红壤研究所,江西,南昌,331717
  2. 国家红壤改良工程技术研究中心,江西,南昌,331717
- 作者简介：
- 基金信息：
  
  "十二五"国家科技支撑计划项目"红壤耕地次生障碍修复技术研究与集成示范"(2011BAD41B01-3);水利部行业专项(SWCC201201);"十二五"国家科技支撑计划项目(2011BAD31B04-3);水利部行业专项(201301050)
- DOI：10.13961/j.cnki.stbctb.2014.02.017
  中图分类号：
- 纸质出版：2014
- 稿件说明：
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钟义军, 武琳, 黄欠如, 等. 苎麻对红壤旱地土壤团聚体及其特性的影响[J]. 水土保持通报, 2014,33(2):78-82.

ZHONG Yi-jun, WU Lin, HUANG Qian-ru, et al. Effect of Ramie on Soil Aggregate and Its Characteristics in Red Soil Region of South China[J]. Bulletin of Soiland Water Conservation, 2014, 33(2): 78-82.
钟义军, 武琳, 黄欠如, 等. 苎麻对红壤旱地土壤团聚体及其特性的影响[J]. 水土保持通报, 2014,33(2):78-82. DOI： 10.13961/j.cnki.stbctb.2014.02.017.

ZHONG Yi-jun, WU Lin, HUANG Qian-ru, et al. Effect of Ramie on Soil Aggregate and Its Characteristics in Red Soil Region of South China[J]. Bulletin of Soiland Water Conservation, 2014, 33(2): 78-82. DOI： 10.13961/j.cnki.stbctb.2014.02.017.

摘要

采用干、湿筛法研究了种植苎麻和花生对红壤旱地土壤团聚体及其特性的影响

并比较分析了土壤团聚体及土壤理化性质与地表径流和土壤侵蚀量的关系。结果表明:(1)与花生地相比

苎麻地有机质、田间持水量、总孔隙度、沙粒分别升高了28.44%

10.06%

5.65%和53.13%

土壤容重、粉粒和黏粒则分别降低了7.20%

14.85%和34.95%

均达显著性差异水平(p<0.05)。(2)团聚体平均重量直径(MWD)、稳定性指数(ASI)显著升高(p<0.01)

苎麻地土壤团聚体稳定性优于花生地; (3)两处理均以0.25~1 mm粒径团聚体保存几率最大

抗水蚀能力最强。(4)地表径流量和土壤侵蚀量与土壤有机质、沙粒含量、>1 mm的干团聚体、>0.5 mm的水稳性团聚体、MWD以及ASI呈极显著负相关关系(p<0.01)

而与粉粒、黏粒、<0.25 mm干团聚体、<0.053 mm的水稳性团聚体、呈极显著正相关关系(p<0.01)。

Abstract

The effect of soil physical and chemical properties

soil aggregate and its characteristics of planting ramie and peanuts in red soil were studied by dry

wet sieving method. Moreover

the relationship between soil aggregates and surface runoff and soil erosion were also analyzed. The results indicated that: (1) After three years by planting ramie

soil organic matter

field capacity

total porosity

grains of sand were increased 28.44%

10.06%

5.65%

28.44%

soil bulk density

silt

and clay were reduced by 7.20%

14.85%

34.95%(p<0.05); (2) Mean weight diameter(MWD)

stability index(ASI) of soil aggregate by planting ramie were significantly higher than that of planting peanut

soil aggregate stability of planting ramie was better than that of peanuts; (3) 0.25~1 mm aggregates is the best chance of preservation of the red soil

and the resist-erosion ability also the strongest. (4) Surface runoff and soil erosion

with soil organic matter

sand content

>1 mm dry aggregates

>0.5 mm water stable aggregates

MWD

ASI were negatively correlated(p<0.01)

but were significantly positively correlated with silt

clay content

<0.25 mm

dry aggregates

and <0.053 mm water stable aggregates.

关键词

Keywords

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