[1]崔力拓,李志伟.坡地退耕还林(草)对土壤磷素流失的影响[J].水土保持研究,2007,14(06):272-274.
　CUI Li-tuo,LI Zhi-wei.Effect of Returning Farmland to Forest (Grass) on Phosphorus Runoff of Slope Land[J].Research of Soil and Water Conservation,2007,14(06):272-274.
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坡地退耕还林(草)对土壤磷素流失的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 14 期数: 2007年06期 页码: 272-274 栏目: 出版日期: 1900-01-01
Title:
Effect of Returning Farmland to Forest (Grass) on Phosphorus Runoff of Slope Land
作者:
崔力拓1, 李志伟2
1. 中国环境管理干部学院, 河北 秦皇岛 066004;
2. 河北农业大学 海洋学院, 河北 秦皇岛 066003
Author(s):
CUI Li-tuo1, LI Zhi-wei2
1. Environmental Management College of China, Qinhuangdao, Hebei 066004, China;
2. Ocean College, Agricultural University of Hebei, Qinhuangdao, Hebei 066003, China
关键词:
洋河流域; 退耕还林(草); 水溶态磷; 颗粒态磷
Keywords:
Yanghe watershed; returning farmland to forest (grass); dissolved phosphorus; particulate phosphorus
分类号:
S157;X171.4
摘要:
退耕还林（草）能有效地减少坡地土壤磷素的流失，尤其水溶态磷的流失，表现为：在相同的降雨量下，地表径流中颗粒态磷的含量分别减少62.95%和43.79%，磷酸根态磷含量分别减少45.59%和23.53%；径流小区试验表明：退耕还林（草）后径流中水溶性磷的流失量分别减少44.81%和60.24%，径流泥沙颗粒态磷的流失量分别减少27.82%和41.94%。
Abstract:
Returning farmland to forest (grass) can effectively reduce the phosphorus loss of slope land, especially dissolved phosphorus.By the experiments of runoff plots without boundary, at the same precipitation, the particulate phosphorus content of runoff reduced 62.95% and 43.79% respectively and the PO43--P content reduced 45.59% and 23.53% respectively after returning farmland to forest (grass); By the experiments of runoff plots in field, the dissolved phosphorus loss of runoff silt reduced 44.81% and 60.24% and the particulate phosphorus loss of runoff silt reduced 27.82% and 41.94% respectively.

参考文献/References:

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[2] 崔力拓, 李志伟.洋河流域缓坡地土壤磷素径流输出特征[J].水土保持学报, 2006, 20 (3):10-16.
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[5] 许峰, 蔡强国, 吴淑安.坡地等高植物篱带间距对表土养分流失影响[J].土壤侵蚀与水土保持学报, 1999, 5 (2):23-29.
[6] 鲁如坤, 时正元, 顾益初.土壤积累态磷研究-磷肥的表观积累利用率[J].土壤, 1995, 27 (6):286-289.
[7] Mander U, Ain K.Nutrient runoff dynamics in a rural catchment:influence of land-use changes, clinatic fluctuations and ecotechnological measures[J].Ecological Engineering, 2000, 14:405-417.
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备注/Memo

收稿日期:2006-12-31。
基金项目:河北省教育厅自然科学计划项目（Z2005112）；中国环境管理干部学院基金项目（2005-002）
作者简介:崔力拓（1975- ），男，内蒙赤峰人，讲师，硕士，主要从事水土环境研究。

更新日期/Last Update: 1900-01-01