ISWC OpenIR  > 水保所知识产出(1956---)
波状坡耕地工程减蚀技术设计与试验
丁新辉1; 谢永生3; 田 飞2; 张 怀3; 郝晓东3
2017
Source Publication水 利 学 报
Volume48Issue:3Pages:359-08
Abstract

为解决波状坡耕地水土流失的治理问题,针对波状坡耕地的形态特征及其水土流失特点,设计了波状坡耕
地拦挡淀排技术,并提出了相关参数计算方法。在河北省平泉县东北沟小流域布设径流小区 2个(对照小区和措
施小区)并观测产流产沙量。3年观测结果表明,波状坡耕地的土壤侵蚀主要是由几场强降雨引起的,拦挡淀排
措施在强降雨情况下的平均减蚀率仍能达到 98.37 %;通过对次降雨资料分析发现次降雨量是影响波状坡耕地侵
蚀的重要因子,经过拦挡淀排措施对径流的调控作用,措施小区径流量明显减少,措施小区径流量与次降雨量的
相关性系数减小;按照野外径流小区的实际修建费用估算出拦挡淀排技术的公顷造价为 30075元,仅为北方土石
山区石坎梯田公顷造价的 49.60 %,具有良好的经济适用性。因此,拦挡淀排技术能够有效防治波状坡耕地水土
流失,可作为一项新型坡耕地水土流失防治技术。

Other Abstract

According to the wave type slope farmland morphological features and it’s characteristics of soil
and water loss,a wave type slope interception-precipitation-drainage technology was designed to solve the
soil erosion problems of the wave type slope farmland,and a method was put forward to calculate the rela⁃
tive parameters. Two plots (contrast plot and measure plot) were deployed in a small watershed, named
Northeast Gully, in PingQuan County of Hebei Province, and then the runoff and sand output were ob⁃
served. Observation results during 3 years showed that the soil erosions of wave type slope farmland were
mainly caused by several heavy rains,the average erosion reduction rate could still reach 98.37% in the
case of heavy rains as a result of using wave type slope interception-precipitation-drainage technology. Addi⁃
tionally,it is found that sub rainfall is an important factor affecting on the soil erosion in wave type slope
farmland through the analysis of rainfall data,and by the regulation of the wave type slope interception-pre⁃
cipitation-drainage measures,the runoff of the measure plot has been significantly reduced,and the correla⁃
tion coefficient between the measure plot runoff and sub rainfall decreased. Finally, the cost of the wave
type slope interception-precipitation-drainage technology is estimated at 30,075 yuan per hectare based on
the actual cost of building the runoff plots,only account for 49.60% of the rock mountain area stone dike
terrace cost,which has a good economic applicability. Therefore,the wave type slope interception-precipita⁃
tion-drainage technology can effectively prevent the soil and water loss in wave type slope farmland,which
can be used as a new technology for slope farmland erosion control.

Keyword波状坡 水土流失 工程技术 削流率 减蚀率
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8357
Collection水保所知识产出(1956---)
Affiliation1.中国科学院 水利部 水土保持研究所,陕西 杨凌 712100
2.西北农林科技大学 资源环境学院,陕西 杨凌 712100
3.承德市水土保持科学研究所,河北 承德 067000
Recommended Citation
GB/T 7714
丁新辉,谢永生,田 飞,等. 波状坡耕地工程减蚀技术设计与试验[J]. 水 利 学 报,2017,48(3):359-08.
APA 丁新辉,谢永生,田 飞,张 怀,&郝晓东.(2017).波状坡耕地工程减蚀技术设计与试验.水 利 学 报,48(3),359-08.
MLA 丁新辉,et al."波状坡耕地工程减蚀技术设计与试验".水 利 学 报 48.3(2017):359-08.
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