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首页> 外文期刊>Soil and Water Research >Two types of biochars: one made from sugarcane bagasse, other one produced from paper fiber sludge and grain husks and their effects on water retention of a clay, a loamy soil and a silica sand
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Two types of biochars: one made from sugarcane bagasse, other one produced from paper fiber sludge and grain husks and their effects on water retention of a clay, a loamy soil and a silica sand

机译：两种类型的Biochars：由甘蔗棒制成的Biochars，其它由纸纤维污泥和谷物壳产生的其他物质及其对粘土的水保留的影响，壤土和硅砂

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摘要

Biochar (BC) is used as a soil amendment to enhance plant growth by improving mainly soil chemical and hydrophysical properties. In this work the effects of two types of BCs on soil water retention properties were analysed. The first type of BC was made from sugarcane bagasse. It was added to a clay "Shimajiri Maji" soil at an application rate of 3 w%. The second type of BC was made from paper fiber sludge and grain husks. It was added into a loam soil at rates of 3.6, and 7.3 w%. It was assumed that the effect of BC amendment will be more pronounced in coarse-grained soil than in fine-grained one. Therefore, the second type of BC was applied additionally in the silica sand, in a textured contrast material compared with the loam soil. The BC amendment caused statistically significant increase of water content in the transmission pores of the clay soil, in the storage pores of the loam soil, and in the macropores and the storage pores in the silica sand. Despite of the positive effect on soil water retention, statistically significant increase of available water capacity (AWC) was identified only in the loam soil with the larger BC amendment rate. Possible reasons are discussed.
机译：Biochar（BC）用作土壤修正案，通过改善土壤化学和水性性能来提高植物生长。在这项工作中，分析了两种BCS对土壤水保留性能的影响。第一种类型的BC由甘蔗队制成。它以3 W％的应用率加入粘土“Shimajiri Maji”土壤。第二种BC由纸纤维污泥和晶壳制成。它以3.6和7.3W％的速率加入壤土土壤中。假设BC修正案的效果在粗粒土壤中更加明显，而不是细粒度。因此，与陶瓷土壤相比，织地用造影材料中另外施用第二种类型的BC。 BC修正案在泥土土壤的储存毛孔和麦克风和硅砂中储存孔中含有统计上显着增加了粘土土壤的储土孔中的含水量。尽管对土壤水保留的积极影响，但仅在Loam土壤中鉴定了可用水容量（AWC）的统计学显着增加，BC修正率较大。可能的原因讨论。

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