Effects of Intercropping with Different Green Manures on Soil Nutrient Loss in Camellia Oleifera Field

DING Yifei1; 2

doi:10.13870/j.cnki.stbcxb.2018.02.026

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Effects of Intercropping with Different Green Manures on Soil Nutrient Loss in Camellia Oleifera Field

更新时间：2025-03-12

- Effects of Intercropping with Different Green Manures on Soil Nutrient Loss in Camellia Oleifera Field
- Vol. 32, Issue 2, Pages: 179-183(2018)
- 作者机构：
  
  1. 中国林业科学研究院亚热带林业研究所，浙江富阳,311400
  2. 安徽农业大学林学与园林学院,合肥,230036
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2018.02.026
  CLC： S153.6;S794.4
- Published：2018
- 稿件说明：
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DING Yifei1, 2. Effects of Intercropping with Different Green Manures on Soil Nutrient Loss in Camellia Oleifera Field[J]. 2018, 32(2): 179-183.
DOI：

DING Yifei1, 2. Effects of Intercropping with Different Green Manures on Soil Nutrient Loss in Camellia Oleifera Field[J]. 2018, 32(2): 179-183. DOI： 10.13870/j.cnki.stbcxb.2018.02.026.

摘要

为有效防治油茶林水土流失和面源污染，在自然降雨条件下，采用径流小区定位观测法研究间作黑麦草、鼠茅草对油茶林土壤养分流失的影响。结果表明：(1)油茶间作黑麦草、鼠茅草可以提高土壤含水量与地表覆盖度，降低土壤容重，并显著提高表层土壤有机质及养分含量，增加土壤肥力。（2）4—7月油茶间作绿肥作物黑麦草、鼠茅草径流量分别减少18.5%～58.9%和17.9%～70.3%。（3）油茶间作鼠茅草系统减少径流养分流失的效果最佳，与对照组相比，地表径流中总氮、可溶性总氮、总磷、可溶性总磷、总钾、可溶性总钾的总流失量分别减少62.48%，56.17%，59.72%，57.97%，62.97%和61.76%；油茶间作黑麦草系统减少地表养分流失的效果较弱，与对照组相比，地表径流中总氮、可溶性总氮、总磷、可溶性总磷、总钾、可溶性总钾的总流失量分别减少30.95%，24.42%，25.03%，28.22%，32.97%和30.42%。各形态氮、磷、钾养分浓度较对照也有一定程度的降低。研究结果显示，油茶林间作绿肥，尤其是间作鼠茅草的水土保持效果显著。

Abstract

In order to effectively prevent and control the soil and water loss and pollution in Camellia oleifera field

by using the location observation of runoff plot under natural rainfall conditions

the effects of intercropping with Lolium perenne L. and Vulpia myuros C. Gmelin on soil nutrient loss in C. oleifera field were studied. The results showed that: (1) The intercropping of L. perenne and V. myuros with C. oleifera could improve soil water content and surface coverage

reduce soil bulk density

and increase soil fertility significantly through improving soil organic matter and nutrient contents in topsoil. (2) During April-July

the intercropping of L. perenne and V. myuros with C. oleifera could reduce surface runoff by 18.5%～58.9% and 17.9%～70.3%

respectively. (3) The reducing effect on surface runoff nutrient loss was best under intercropping with V. myuros

the total loss of total nitrogen

total soluble nitrogen

total phosphorus

total soluble phosphorus

total potassium and total soluble potassium decreased by 62.48%

56.17%

59.72%

57.97%

62.97% and 61.76%

respectively

compared with the control. The reducing effect on nutrient loss was least under the intercropping with L. perenne

but the reduced rates were even 30.95%

24.42%

25.03%

28.22%

32.97% and 30.42%

respectively for the indexes mentioned above. The nutrient concentrations of nitrogen

phosphorus and potassium in different forms were lower than those of the control. These findings showed that the effect of intercropping with green manures on soil and water conservation was remarkable in C. oleifera field

especially with V. myuros.

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