Simulation Rainfall Experiment of Nitrogen and Phosphorus Loss in Surface Runoff from Bamboo Forest Slopes Land Under Different Managements

ZHANG Li-ping; ZHANG Rui-bo; WU Xi-yuan

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Simulation Rainfall Experiment of Nitrogen and Phosphorus Loss in Surface Runoff from Bamboo Forest Slopes Land Under Different Managements

更新时间：2024-11-07

- Simulation Rainfall Experiment of Nitrogen and Phosphorus Loss in Surface Runoff from Bamboo Forest Slopes Land Under Different Managements
- Vol. 25, Issue 6, (2011)
- 作者机构：
  
  1. 浙江大学环境与资源学院浙江省亚热带土壤与植物营养重点实验室/污染环境修复与生态健康教育部重点实验室
  2. 浙江大学城市学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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ZHANG Li-ping, ZHANG Rui-bo, WU Xi-yuan. Simulation Rainfall Experiment of Nitrogen and Phosphorus Loss in Surface Runoff from Bamboo Forest Slopes Land Under Different Managements[J]. 2011, 25(6).
DOI：

ZHANG Li-ping, ZHANG Rui-bo, WU Xi-yuan. Simulation Rainfall Experiment of Nitrogen and Phosphorus Loss in Surface Runoff from Bamboo Forest Slopes Land Under Different Managements[J]. 2011, 25(6). DOI：

摘要

针对不同管理方式竹林坡地水土流失过程中携带养分流失的特征

于2008年和2009年在浙江省临安市和安吉县

分别选择用材竹林坡地和挖笋竹林坡地

建立径流小区(面积3m×1.5m

坡度20°)

设计用材林不锄草、清鞭和施肥

笋林地除草清鞭每年1次和2年1次、每年施肥1次

共3种管理方式

采用人工模拟降雨的试验手段

设定6个降雨强度(0.53～1.90mm/min)

定时采集径流泥沙样

测试径流中的总氮(TN)和总磷(TP)含量

研究不同管理方式下竹林地N和P的流失过程特征

分析流失差异的原因。结论如下:(1)在相同管理方式下

径流中TN和TP的流失量随雨强在增加

以雨强为1.01mm/min为界

小于该雨强时增加量很微弱

大于这一雨强时增加速率很快;(2)在相同雨强作用下

笋竹林地径流中TN的流失量是用材竹林地的3～7倍

但径流中TP的流失量却略小于用材竹林地的流失量;(3)泥沙中TP的流失量

笋竹林地是用材竹林地的数百倍;(4)在N和P随径流泥沙的流失过程中

产流前期浓度起主要作用

后期径流量和产沙量起决定作用。研究结果可为竹林地管理、笋用竹林地锄草、清鞭和施肥的科学合理安排提供参考依据。

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ZHANG Li-ping

WU Xi-yuan

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FAN Tongtong

WANG Dongmei

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Related Institution

ZHANG Li-ping1,WU Xi-yuan1,ZHANG Rui-bo2(1.Zhejiang Provicial Key Laboratory of Subtropic Soil and Plant Nutrition,Key Laboratory ofPolluted Environment Remediation and Ecological Health,Ministry of Education,College of Natural Resources andEnvironmental Science,Zhejiang University,Hangzhou 310029,2.College of City,)

School of Soil and Water Conservation, Beijing Forestry University

ZHANG Li-juan,MA You-hua,SHI Ying-yao,ZHU Xiao-hong,WANG Li-ting,MA Zhong-wen,FANG Rui-yuan(Institute of Resource Environment and Information Technology,Anhui Agricultural University,)

School of Resources and Environment, Anhui Agricultural University

The Research Center of Soil and Water Conservation and Ecological Environment， Chinese Academy of Sciences and Ministry of Education， Yangling

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