SUN Ben-hua,GAO Ming-xia,LÜ,et al.The Effect of Planting Alfalfa to Soil Nutrients and Humic Acid Characteristics on Gray Desert Soil[J].Research of Soil and Water Conservation,2007,14(03):338-340.
苜蓿培肥对灰漠土养分及胡敏酸特性的影响
- Title:
- The Effect of Planting Alfalfa to Soil Nutrients and Humic Acid Characteristics on Gray Desert Soil
- 分类号:
- S158
- 摘要:
- 通过荒地和苜蓿地土壤养分、土壤胡敏酸热解特性和红外光谱特征的比较，研究了灰漠土上种植苜蓿培肥对土壤养分和土壤有机质特性的影响.结果表明，种植苜蓿可以增加土壤有机质、全N和碱解N的含量，但速效磷和速效钾含量则下降，土壤pH不变.苜蓿地胡敏酸的脂肪族侧链较多，胡敏酸较年轻，而荒地胡敏酸侧链较少，胡敏酸相对较老.苜蓿地胡敏酸的脂族性强于荒地.种植苜蓿培肥后土壤胡敏酸变得简单化和年轻化.
- Abstract:
- The effects of soil fertilization to gray desert soil nutrients and organic matter characteristics were studied through comparing soil nutrients,soil humic acid pyrolytic and IR characteristics between soils from uncropped and alfalfa fields.The results showed that soil organic matter,total N and available N increased,and available P and available K decreased,and soil pH didn’t change after planting alfalfa.The fatty lateral chain of humic acid from alfalfa field was much more than that from uncropped field.The fatty characteristics of soil humic acid from alfalfa field was stronger than that from uncropped field.The soil humic acid from alfalfa field was simpler and younger than that from uncropped field.
参考文献/References:
[1] 文启孝.土壤有机质研究法[M].北京, 农业出版社, 1984.112-124.
[2] 鲁如坤.土壤农业化学分析方法[M].中国农业科技出版社, 2000.
[3] Tsutomu Satoh.Thermal nature of organic-mineral complex particles and their humus substances[J].Soil Sci.Plant Nutr, 1984, 30(1):95-104.
[4] 白锦鳞, 张一平, 赵高侠, 等.陕西省几种主要土壤胡敏酸的能态及热分解特性的研究[J].土壤学报, 1990, 27(2):151-158.
[5] 赵高侠, 张一平, 白锦鳞, 等.不同施肥条件与年限对土壤胡敏酸能态及热分解特性的影响[J].土壤学报, 1995, 32(3):284-291.
[6] 窦森, 陈恩凤, 须湘成, 等.土壤有机培肥后胡敏酸结构特征变化规律的探讨.Ⅰ.胡敏酸的化学性质和热性质[J].土壤学报, 1992, 29(2):199-206.
[7] 窦森, 姜岩.土壤施用有机肥料后重组有机质变化规律的探讨Ⅱ.对重组有机质腐殖质组成和胡敏酸光学性质的影响[J].土壤学报, 1988, 25(3):252-261.
备注/Memo
收稿日期:2006-6-23
基金项目:西北农林科技大学校基金(2003);中科院阜康荒漠生态系统观测试验站开放基金(编号20020009)
作者简介:孙本华(1972- )，男，江苏金湖人，西北农林科技大学资源环境学院助理研究员，在职博士生，主要从事土壤化学以及环境科学的研究工作;