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Position: Home > Articles > THE EFFECTS OF HIGH POLYMERS ON THE STRUCTURAL PROPERTIES OF PURPLE UPLAND SOIL Journal of Southwest University(Natural Science Edition) 1992 (6) 487-491

高分子聚合物对紫色土结构状况的影响研究

作  者:
陈萌;曾觉廷
关键词:
紫色土;高聚物;土壤结构
摘  要:
本文研究了聚丙烯酰胺、聚乙烯醇树脂和腐殖酸钠对紫色旱地土壤结构性等物理性质的影响。结果表明,3种聚合物均能较大幅度地提高土壤大团聚体的数量和质量。其中,聚丙烯酰胺的效果最好,聚合物可增加土壤总孔度和改善各级孔隙在土壤中的分配。聚乙烯醇树脂则能有效地增加土壤有效水贮存孔度。
译  名:
THE EFFECTS OF HIGH POLYMERS ON THE STRUCTURAL PROPERTIES OF PURPLE UPLAND SOIL
作  者:
Chen Meng;Zeng Jueting Department of Soil Science and Agrochemistry, SWAU
关键词:
purple soils;;macromolecules;;soil structure
摘  要:
Application of polyacrylamide,vinylacetate-methylacryl or sodium humate consider- ably raised the contents of water-stable aggregates in the soil and improved their quality. Polyacrylamide gave the best results.All the three polymers increased the total porosity and improved the distribution of pore size in the soil.Polyacrylamide significantly increased the total porosity and aeration porosity while vinylacetate-methylacryl proved effective in in- creasing the capillary porosity of the soil.

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