佛山市湿地松林地表径流中可溶解性氮和磷的流失特征

薛立; 薛晔; 郑卫国; 傅静丹; 冯慧芳; 史小玲

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佛山市湿地松林地表径流中可溶解性氮和磷的流失特征

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- 佛山市湿地松林地表径流中可溶解性氮和磷的流失特征
- haracteristics of Dissolvable Nitrogen and Phosphorus Losses in Runoff from a Pinus Elliottii Stand in Foshan City
- 水土保持通报 2010年29卷第1期页码：31-34
- 作者机构：
  
  1. 华南农业大学林学院,广东,广州,510642
  2. 浙江工业大学,浙江,杭州,310023
- 作者简介：
- 基金信息：
  
  广东省林业局资助项目“林分改造优良乡土阔叶树种筛选”(4400-F08018);佛山市科技资助项目“南亚热带松类复合生态系统研究”(2005020061)
- DOI：
  中图分类号：
- 纸质出版：2010
- 稿件说明：
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薛立, 薛晔, 郑卫国, 等. 佛山市湿地松林地表径流中可溶解性氮和磷的流失特征[J]. 水土保持通报, 2010,29(1):31-34.

XUE Li, XUE Ye, ZHENG Wei-guo, et al. haracteristics of Dissolvable Nitrogen and Phosphorus Losses in Runoff from a Pinus Elliottii Stand in Foshan City[J]. Bulletin of Soiland Water Conservation, 2010, 29(1): 31-34.
薛立, 薛晔, 郑卫国, 等. 佛山市湿地松林地表径流中可溶解性氮和磷的流失特征[J]. 水土保持通报, 2010,29(1):31-34. DOI：

XUE Li, XUE Ye, ZHENG Wei-guo, et al. haracteristics of Dissolvable Nitrogen and Phosphorus Losses in Runoff from a Pinus Elliottii Stand in Foshan City[J]. Bulletin of Soiland Water Conservation, 2010, 29(1): 31-34. DOI：

摘要

研究了佛山的湿地松林地表径流及可溶解性氮和磷流失的特点。结果表明

湿地松林的年径流量为16.7mm

集中在夏季。林分的地表径流量和降雨量的关系按照二项式方程变化。地表径流中氮浓度与径流量之间存在着对数关系。湿地松林的地表径流中可溶解性氮输出量为221g/(hm

.a)

春季和夏季为氮流失高峰期

占可溶解性氮年流失量的80%以上。湿地松林地表径流中可溶解性磷流失量为7.0g/(hm

.a)

2008年5月和6月为湿地松林的地表径流中可溶解性磷流失高峰

占该年流失量的59%。

Abstract

The characteristics of runoff and dissolvable nitrogen and phosphorus losses from a Pinus elliottii stand were studied in Foshan City.The annual amount of runoff from the Pinus elliottii stand was 16.7 mm

which was mainly observed in summer.The relationship between rainfall and runoff in the stand could be described by a binomial equation.A logarithmic relationship existed between runoff and N concentration.Annual dissolvable N loss from the stand was 221g/(hm2?a) and in spring and summer

it reached its peak with above 80% of annual dissolvable N loss.Annual dissolvable P loss from the stand was 7.0g/(hm2?a).The greatest monthly dissolvable P loss occurred in May and June

2008

accounting 59% of its annual P loss.

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