地埂植物带在坡耕地治理中的作用与综合效益分析——以东北黑土区为例

【目的】促进地埂植物带措施的进一步推广应用,为水土保持新技术新方法的革新积累经验。【方法】根据地埂植物带的技术特点,对东北黑土区地埂植物带措施的技术标准、建设方法、建设成本、存在问题及改进方法进行研究,并引入WOCAT(World overview of conservation approaches and technologies)中水保措施的成本计算和效益评价方法来计算成本和进行效益评价。【结果】地埂植物带能截短坡长,增加入渗,拦截泥沙,随着地埂植物带拦截泥沙量的增加,逐年加高植物带后,坡耕地还会形成水平梯田,增加粮食产量。地埂植物带的建设标准为:单个地埂的断面为梯形,顶宽为0.3~0....

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Published in南方农业学报 Vol. 45; no. 6; pp. 1015 - 1020
Main Author 赵梅 孟令钦 王秀颖
Format Journal Article
LanguageChinese
Published 北京师范大学地理学与遥感科学学院,北京,100875%松辽水利委员会水土保持处,长春,130021%辽宁省水文水资源勘测局,沈阳,110003 2014
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ISSN2095-1191
DOI10.3969/j:issn.2095-1191.2014.6.1015

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Summary:【目的】促进地埂植物带措施的进一步推广应用,为水土保持新技术新方法的革新积累经验。【方法】根据地埂植物带的技术特点,对东北黑土区地埂植物带措施的技术标准、建设方法、建设成本、存在问题及改进方法进行研究,并引入WOCAT(World overview of conservation approaches and technologies)中水保措施的成本计算和效益评价方法来计算成本和进行效益评价。【结果】地埂植物带能截短坡长,增加入渗,拦截泥沙,随着地埂植物带拦截泥沙量的增加,逐年加高植物带后,坡耕地还会形成水平梯田,增加粮食产量。地埂植物带的建设标准为:单个地埂的断面为梯形,顶宽为0.3~0.5m,底宽1m,高度为0.5~0.6m,内坡比1:1或1:0.5,外坡比1:0.5,地埂间距为40~60m。复合植物带的建设标准为:复合植物带的间距为20~40m,复合植物带两条土埂的间距为2m,两条地埂之间竹节壕的长为5~10m,宽1.5m,深0.2~0-3m。地埂植物带和复合植物带每公顷的建设费用分别为3070和7230元。【建议】地埂植物带综合效益高,在措施的推广中,要正确处理当前和长远利益的关系,以达到土地可持续利用的目的。
Bibliography:45-1381/S
ZHAO Mei, MENG Ling-qin, WANG Xiu-ying(1.State Key Laboratory of Earth Surface Processes and Resource Ecology, School of Geography, Beijing Normal University, Beijing 100875, China; 2.Division of Water and Soil Conservation,Songliao Water Resources Commission, Ministry of Water Resources, Changchun 130021, China; 3.Hydrology and Water Resources Bureau of Liaoning Province, Shenyang 110003, China)
BSG (Belts of Shrub or Grass) ; composite plant belt; WOCAT (World Overview of Conservation Approaches and Technologies); benefit evaluation; black soil region in Northeast China
[Objective]Effects of BSG (belts of shrub or grass) on slope farmland were studied to accumulate experiences for developing new technologies and approaches of soil and water conservation. [Method]According to the technical characteristics of BSG,technical standards,construction methods,project costs,existing problems and improved methods were summarized. Costing and benefit evaluation method of soil and water conservation techniques a
ISSN:2095-1191
DOI:10.3969/j:issn.2095-1191.2014.6.1015