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施肥条件下保水剂对土壤蒸发和土壤团聚性状的影响
引用本文:李继成,张富仓,孙亚联,李志军,罗朋. 施肥条件下保水剂对土壤蒸发和土壤团聚性状的影响[J]. 水土保持通报, 2008, 28(2): 48-53,89
作者姓名:李继成  张富仓  孙亚联  李志军  罗朋
作者单位:1. 西北农林科技大学,旱区农业水土工程教育部重点实验室,陕西,杨凌,712100
2. 中国科学院,研究生院,北京,100049
摘    要:通过在两种质地土壤中施加"科瀚98"保水剂与肥料配比对土壤累积蒸发量及土壤团聚体含量的变化、分布及养分状况的影响进行了研究.结果表明,土壤累积蒸发量曲线可以用幂函数给予描述.土壤中的团聚体含量随着保水剂用量的增加而增加,其中质地较轻的黄绵土较质地重的(土娄)土的土壤团聚体数量增加较多;保水剂与肥料共同作用时,肥料用量越大,土壤团聚体含量越低.土壤团聚体中的NO-3-N和NH -N含量随着保水剂用量的增加而增加,同时其贮量也得到相应的增加.

关 键 词:保水剂  肥料  土壤蒸发  土壤团聚体  土壤养分  施肥条件  保水剂  土壤蒸发  团聚性  影响  Fertilizer  Different  Soil Aggregation  Soil Evaporation  Characteristics  Polymer  Absorbent  Super  贮量  共同作用  肥料  数量增加  黄绵土  中质  用量
文章编号:1000-288X(2008)02-0048-06
收稿时间:2007-10-08
修稿时间:2007-10-08

Effects of Super Absorbent Polymer on Characteristics of Soil Evaporation and Soil Aggregation Under Different Fertilizer Treatments
LI Ji-cheng,ZHANG Fu-cang,SUN Ya-lian,LI Zhi-jun and LUO Peng. Effects of Super Absorbent Polymer on Characteristics of Soil Evaporation and Soil Aggregation Under Different Fertilizer Treatments[J]. Bulletin of Soil and Water Conservation, 2008, 28(2): 48-53,89
Authors:LI Ji-cheng  ZHANG Fu-cang  SUN Ya-lian  LI Zhi-jun  LUO Peng
Affiliation:Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas,Ministry of Education,Yangling,Shaanxi 712100,China;Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas,Ministry of Education,Yangling,Shaanxi 712100,China;Graduate School of the Chinese Academy of Sciences,Beijing 100049,China;Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas,Ministry of Education,Yangling,Shaanxi 712100,China;Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas,Ministry of Education,Yangling,Shaanxi 712100,China
Abstract:Effects of the "Kehan 98" super absorbent polymer(SAP) and fertilizer proportion on the characteristics of soil evaporation and soil aggregation were investigated using two soils.Results indicated that the curve for accumulated soil evaporation with or without SAP and fertilizer applications could be expressed by a power function.The quantity of soil aggregates increased with the increased SAP.Soil aggregation in the Huanmian soil,a lightly textured soil,increased significantly compared with the Lou soil,a heavily textured soil.When both SAP and fertilizer were applied,soil aggregates were reduced with an increase in the quantity of fertilizer.The contents of nitrate nitrogen and ammonium nitrogen in different soil aggregates increased with the increased SAP and its storage content increased correspondingly.
Keywords:absorbent polymer  fertilizer  soil evaporation  soil aggregates  soil nutrient
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