不同雨强条件下红壤坡地养分流失特征研究

您当前的位置：

首页 >

文章列表页 >

不同雨强条件下红壤坡地养分流失特征研究

更新时间：2024-11-07

- 不同雨强条件下红壤坡地养分流失特征研究
- Study on Properties of Nutrient Loss from Red Soil in Sloping Land under Different Rainfall Intensities
- 水土保持学报 2002年第3期页码：16-19
- 作者机构：
- 作者简介：
- 基金信息：
  
  国家自然科学基金重点项目资助(编号:30030030)
- DOI：
  中图分类号：
- 纸质出版：2002
- 稿件说明：
移动端阅览
不同雨强条件下红壤坡地养分流失特征研究[J]. 水土保持学报, 2002,(3):16-19.

Study on Properties of Nutrient Loss from Red Soil in Sloping Land under Different Rainfall Intensities[J]. 2002, (3): 16-19.
不同雨强条件下红壤坡地养分流失特征研究[J]. 水土保持学报, 2002,(3):16-19. DOI：

Study on Properties of Nutrient Loss from Red Soil in Sloping Land under Different Rainfall Intensities[J]. 2002, (3): 16-19. DOI：

摘要

采用人工模拟降雨装置

对红壤坡地养分流失特征进行了试验研究

结果表明 :在雨强较大情况下

土壤养分以泥沙形式随径流迁移 ;当雨强较小时

随径流迁移的可溶态养分流失量占流失泥沙养分量的比例较高

土壤养分流失氮、磷、钾分别达到 5 3.12 %

2 3.1%

2 1.5 % ;不同形态的养分在流失泥沙中均有养分富集现象

但富集率各不相同 ;土壤养分流失量与雨强及泥沙流失量呈正相关关系。

Abstract

A field study of soil nutrient loss was conducted in red soil on sloping surface by using rainfall simulator. The results showed that soil nutrients were transported mainly with sediment in runoff in high rainfall intensities. In low rainfall intensities

nutrients lost in soluble form had high percentage with runoff water. Nitrogen

phosphorus and potassium lost in soluble form account for 53.21%

23.1%

21.5% of the total nutrient lost in sediment respectively. Nutrient enrichment occurred in both sediment and soluble form

but the enrichment ratio was different. The amount of lost nutrients were correlated positively with rainfall intensities and lost sediment.

关键词

Keywords

references

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

不同雨强条件下红壤坡地养分流失特征研究