Effect of Different Planting Methods on Runoff in Outdoor Vegetable Field of Dianchi Lake's Catchment

ZHANG Xiao-xi; ZHANG Guo-sheng; HU Xue-bai

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Effect of Different Planting Methods on Runoff in Outdoor Vegetable Field of Dianchi Lake's Catchment

更新时间：2024-11-07

- Effect of Different Planting Methods on Runoff in Outdoor Vegetable Field of Dianchi Lake's Catchment
- Vol. 25, Issue 6, (2011)
- 作者机构：
  
  云南大学环境科学与生态修复研究所
- 作者简介：
- 基金信息：
- DOI：
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- Published：2011
- 稿件说明：
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ZHANG Xiao-xi, ZHANG Guo-sheng, HU Xue-bai. Effect of Different Planting Methods on Runoff in Outdoor Vegetable Field of Dianchi Lake's Catchment[J]. 2011, 25(6).
DOI：

ZHANG Xiao-xi, ZHANG Guo-sheng, HU Xue-bai. Effect of Different Planting Methods on Runoff in Outdoor Vegetable Field of Dianchi Lake's Catchment[J]. 2011, 25(6). DOI：

摘要

研究露地蔬菜覆膜垄沟种植体系中2种不同的种植方式(膜上、膜侧)对滇池面山台梯地农田表层土壤结构稳定性及农田产流的影响。结果表明:与膜上种植方式比较

膜侧种植方式对种植行0-5cm土层的容重、孔隙分布及>0.25mm水稳性团聚体含量均无明显影响。在5-10cm土层

虽然膜侧种植方式下的总孔隙度及>60μm孔隙度显著低于膜上种植方式的

但是2种种植方式下5-10cm土层>0.25mm水稳性团聚体含量间的差异不显著。这表明膜侧种植方式不会明显降低表层土壤的结构稳定性。与膜上种植方式比较

膜侧种植方式下农田的径流深度和输沙量减少57%和65%

单位面积农田中随径流输出的TN、TP、COD总量减少49%

64%

72%

表明膜侧种植方式能显著降低台梯地农田的产流量、输沙量和污染物输出量。研究还发现农田污染负荷(TN、TP、COD)输出主要以径流中的泥沙流失为主

约占输出总量的80%以上。相关分析表明

滇池湖盆区台梯地农田产流量与降水量、降水强度间均无显著相关关系

径流中泥沙含量和降水强度、径流量间存在显著的正相关关系。

Abstract

The effects of planting types(ridge planting and furrow planting) on runoff

sediment and surface soil structure stability were determined in vegetable field with polyethylene mulch and ridge-furrow system of contour terrace in the Dianchi lake's catchment.The results showed that there were no significants difference of bulk density

pores distribution and water stable macro-aggregates(>0.25 mm) content between furrow planting type(FP) and ridge planting type(RP) in 0-5 cm soil layer after vegetable harvestin...

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