| 摘要: |
| 对由高效沼气发酵子系统、太阳能暖圈子系统、集雨蓄水子系统和节水滴灌子系统构成的黄土高原生态果园工程模式，提出了各子系统主要技术参数的计算方法和结构优化原则。实践证明：设计的新型高效沼气池克服了常规沼气池存在的技术问题，产气率提高51.7％；设计的太阳能暖圈解决了猪和沼气池越冬问题，猪的生成速度提高30％，沼气池产气率提高20％；设计的集雨和贮水系统能有效地解决干旱半干旱地区畜禽、沼气池、果树生产中的用水问题；设计的滴灌系统与沼液施肥联用，可一次完成灌水和施肥作业。 |
| 关键词: 黄土高原 生态果园 工程模式 优化设计 |
| DOI： |
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| 基金项目:农业部跨越计划项目“西部黄土高原生态农业模式示范” |
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| A study into the designs of the optimal ecological orchard project model in the Loess Plateau |
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| Abstract: |
| The paper designs the optimal ecological orchard project model that contains the sub-system of high efficient methane ferment,the sub-system of solar greenhouse,the sub-system of collective precipitation and the sub-system of saving irrigation in the Loess Plateau,and points out the measurement method of the main tech-parameters and principles of optimal construction to each sub system.The practice testified that the new-type and high-efficient methane generating pit surmounted the technical defects of the traditional methane generating pit.The rate of methane production increases 51.7 percent,and the sub-system of the solar greenhouse solves the effect of low temperature to the pig and the methane generating pit,the growth rate of pig improves 30 percent,the rate of methane production increases 20 percent,the sub-system of collective precipitation and the sub-system of water-saving irrigation efficiently solves the water-shortage in raising domestic animals (poultry),the methane generating pit and fruit trees.The sub-systen of drop irrigation can be applied simultaneously with methane liquid to realize irrigation and fertilization. |
| Key words: ecological orchard project model optimal design the Loess Plateau |
