雨强对三峡库区黄色石灰土养分流失的影响

傅涛 倪九派 等

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雨强对三峡库区黄色石灰土养分流失的影响

更新时间：2024-11-07

- 雨强对三峡库区黄色石灰土养分流失的影响
- Research on Nutrient Loss from Terra Gialla Soil in Three Gorges Region Under Different Rainfall Intensity
- 水土保持学报 2002年16卷第2期页码：33-35
- 作者机构：
- 作者简介：
- 基金信息：
  
  重庆市科委资助项目 :三峡库区坡耕地水土流失机理与预测评价建模
- DOI：
  中图分类号： S157.1S158.5
- 纸质出版：2002
- 稿件说明：
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傅涛倪九派等. 雨强对三峡库区黄色石灰土养分流失的影响[J]. 水土保持学报, 2002,16(2):33-35.

FU Tao. Research on Nutrient Loss from Terra Gialla Soil in Three Gorges Region Under Different Rainfall Intensity[J]. 2002, 16(2): 33-35.
傅涛倪九派等. 雨强对三峡库区黄色石灰土养分流失的影响[J]. 水土保持学报, 2002,16(2):33-35. DOI：

FU Tao. Research on Nutrient Loss from Terra Gialla Soil in Three Gorges Region Under Different Rainfall Intensity[J]. 2002, 16(2): 33-35. DOI：

摘要

采用室内模拟降雨装置研究了三峡库区黄色石灰土的养分流失规律。雨强对径流的养分浓度和泥沙的养分浓度无关

但可影响其浓度峰值出现时间

并与养分流失量呈正相关 ;径流中养分浓度远低于泥沙养分浓度

坡面养分流失以泥沙携带为主

但由于径流中养分以可溶态速效养分为主

径流携带的养分流失不容忽视

Abstract

With simulated rainfall equipment

the pattern of soil nutrient from terra gialla soil was studied. Result showed that the consistency of nutrient in the runoff and sediment was not interrelated with the rainfall intensities. But the time of superlative consistency emerging was effected by rainfall intensities. There was significant positive correlation between the amounts of soil nutrient loss and rainfall intensities. This experiment also found that the consistency of nutrient in the sediment was exceedingly more than the consistency of nutrient in the runoff. But the primary of the nutrient in runoff was readily available nutrient

so the nutrient removed by runoff could not neglect.

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