四川农业大学学报 ›› 2014, Vol. 32 ›› Issue (01): 46-52.doi: 10.3969/j.issn.1000-2650.2014.01.008

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黄土高原不同农业技术措施的土壤水分效应评价

杨开宝, 吴发启   

  1. 西北农林科技大学资源环境学院, 陕西 杨凌 712100
  • 收稿日期:2014-02-19 出版日期:2014-03-31 发布日期:2017-02-28
  • 作者简介:杨开宝,副教授,博士,主要从事水土保持与保护性耕作教学与研究工作,E-mail:yangkaibao@nwsuaf.edu.cn。
  • 基金资助:
    陕西省科技计划项目"黄土丘陵区保护性耕作土壤水分效应研究"(2010K01-030);陕西省榆林市科技计划项目"榆林南部丘陵区保护性耕作土壤水分效应研究"

Effects of Different Agrotechnical Measures on Soil Water in the Loess Plateau

YANG Kai-bao, WU Fa-qi   

  1. College of Resources and Environment of Northwest A~F University. Yangling 712100, Shaanxi, China
  • Received:2014-02-19 Online:2014-03-31 Published:2017-02-28

摘要: [目的] 为了筛选黄土高原丘陵沟壑区保护性农业的最佳技术措施,提高土壤水分利用效率;探索土壤水分效应的评价方法。[方法] 以位于黄土丘陵沟壑区的陕西省米脂县为代表,选择了免耕休闲、免耕秸秆覆盖、地膜覆盖、组合覆盖和传统耕作5种农业技术措施进行田间试验,对其土壤水分消耗规律、作物产量及水分利用效率等进行系统研究,采用TOPSIS法评价不同农业技术措施的综合水分效应。[结果] 研究结果表明,黄土高原不同农业技术措施综合水分效应的优先顺序为:组合覆盖 > 免耕秸秆覆盖 > 地膜覆盖 > 传统耕作 > 休闲裸地。[结论] 综合分析认为,黄土高原丘陵沟壑区最佳农业技术措施为组合覆盖,采取组合覆盖措施不仅明显提高了土壤水分的利用效率,而且保护土壤水环境,实现土壤水分的可持续利用。

关键词: 农业技术措施, 水分效应, 综合评价

Abstract: [Objective] The aim of the study was to select the best agrotechnical measure for protective agriculture in the Loess Plateau and to explore the evaluation method of soil water effect. [Method] This paper selected the reprehensive Mizhi county of Shaanxi province as study area. Soil water consumption,crop yield and water use efficiency among five agrotechnical measures (no-crop of no-tillage,straw mulch of no-tillage,combination coverage,plastic film coverage and conventional tillage)were compared.In addition,the comprehensive water efficiency of different agrotechnical measures was evaluated using TOPSIS method. [Results] The results indicated that the order of comprehensive water efficiency of different agrotechnical measures was combined coverage > no-tillage straw mulch > plastic film coverage > conventional tillage > no-crop of notillage. [Conclusion] The above analysis suggested that the best measure of comprehensive water effect was combination coverage.It not only improves soil water use efficiency but also protect soil water environment.

Key words: agrotechnical measure, water effect, comprehensive evaluation

中图分类号: 

  • P343