Effects of Conservation Tillage on Soil and Water Loss from Sloping Farmland in Heibeishan Watershed

ZHANG Yan-jun

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Effects of Conservation Tillage on Soil and Water Loss from Sloping Farmland in Heibeishan Watershed

- Effects of Conservation Tillage on Soil and Water Loss from Sloping Farmland in Heibeishan Watershed
- Bulletin of Soiland Water Conservation Vol. 31, Issue 1, Pages: 103-105(2012)
- 作者机构：
  
  黑龙江省农垦牡丹江管理局水务局, 黑龙江密山,158308
- 作者简介：
- 基金信息：
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- Published：2012
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ZHANG Yan-jun. Effects of Conservation Tillage on Soil and Water Loss from Sloping Farmland in Heibeishan Watershed[J]. Bulletin of Soiland Water Conservation, 2012, 31(1): 103-105.
DOI：

ZHANG Yan-jun. Effects of Conservation Tillage on Soil and Water Loss from Sloping Farmland in Heibeishan Watershed[J]. Bulletin of Soiland Water Conservation, 2012, 31(1): 103-105. DOI：

摘要

通过坡面径流小区试验

对黑背山小流域2009年和2010年5—8月径流小区径流量、侵蚀量和养分流失量进行了研究。结果表明

在天然降雨条件下

各径流小区的径流量、侵蚀量和养分流失量具有相似性

从大到小依次为裸地、垄作区田、等高垄作、地膜覆盖和等高深松。与裸地小区相比

保护性耕作措施可减少小区径流量29.8%～63.3%

减少侵蚀量64.6%～96.6%

减少全氮流失量54.0%～89.5%

减少全磷流失49.4%～92.2%。说明保护性耕作措施具有很好的保持水土和减少养分流失的作用。

Abstract

Through runoff plot experiment on slope

runoff

erosion and nutrient loss in Heibeishan watershed from May to August in 2009 and 2010 were studied.Results indicated that runoff

erosion

and nutrient loss from runoff plots under natural rainfall condition had a certain similarity.They were in the decreasing order of bare land

ridged-furrow

contour listing

film mulching

and equal-height deep loosening.Compared with the bare area

the conservation tillage could reduce runoff by 29.8%~63.3%

soil erosion by 64.6%~96.6%

nitrogen loss by 54.0%~89.5%

and total phosphorus loss by 49.4%~92.2%.This suggests that conservation tillage can play very good roles in conserving soil and water and reducing nutrient loss.

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