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首页> 外文会议>World Engineers' Convention 2004 vol F-A: Resources and Energy; 20041102-06; Shanghai(CN) >Efficient Analysis on Soil Water Conditioner of Zeolite in Loess Soil
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Efficient Analysis on Soil Water Conditioner of Zeolite in Loess Soil

机译：黄土区沸石土壤水分改良剂的有效性分析。

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摘要

The water consumption by agriculture accounts for most part of water resources in the continents. Specially, in the arid and semi-arid areas of the world, it accounts, for example, for more than 80% of the total water consumption in the northwestern China. And most part of water for agriculture is originated from rainfall. Zeolite, which is distinguished by the properties of high cation exchange capacity (CEC), free structural water storage and surface adsorption, was applied in the present study in the finegrained calcareous loess soil to enhance rainfall infiltration and soil water retention. The results show that soil treated with zeolite., compared with the normal soil, could increase infiltration by 7% - 30% on gentle slope land and more than 50% on steep slope land, respectively. In addition, the treated soil could increase soil moisture by 0.4% -1.8% in the extreme drought condition, and 5% - 15% in general situation. Consequently, it can reduce overland flow (surface runoff) and protect soil from erosion. And furthermore, can regulate water supply for crops in severe drought conditions. Thus, zeolite has special properties that can be potentially applied to water efficient use for dryland farming. But some technological aspects need scientific investigation and experiment before it puts into broad implementation.
机译：农业用水量占非洲大陆水资源的大部分。特别是在世界干旱和半干旱地区，它占中国西北地区总用水量的80％以上。农业的大部分水来自降雨。本研究以高阳离子交换容量（CEC），自由结构储水和表面吸附等特性为特点，将沸石应用于细粒钙质黄土中，以增强降雨入渗和保水作用。结果表明，与普通土壤相比，沸石处理的土壤在缓坡地和陡坡地的入渗率分别提高了7％-30％和50％以上。另外，在极端干旱条件下，处理过的土壤可使土壤水分增加0.4％-1.8％，在一般情况下可增加5％-15％。因此，它可以减少陆上水流（地表径流）并保护土壤免受侵蚀。而且，它可以调节严重干旱条件下的农作物供水。因此，沸石具有特殊的性能，可潜在地应用于旱地农业的节水利用。但是，在广泛实施之前，某些技术方面需要科学研究和实验。

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