| 农田生态条件对灰漠土养分及胡敏酸特性的影响 |
| |
| 引用本文： | 孙本华,高明霞,吕家珑,王 星,张一平. 农田生态条件对灰漠土养分及胡敏酸特性的影响[J]. 中国生态农业学报, 2007, 15(3): 18-20 |
| |
| 作者姓名： | 孙本华 高明霞 吕家珑 王 星 张一平 |
| |
| 作者单位： | 西北农林科技大学资源环境学院,杨陵,712100 |
| |
| 基金项目： | 西北农林科技大学校科研和教改项目;中国科学院资助项目 |
| |
| 摘 要： | 通过比较荒地和玉米地土壤养分、胡敏酸热解特性和红外光谱特征,研究了灰漠土农田生态条件对土壤养分和有机质特性的影响。结果表明,种植玉米增加土壤有机质、全N、全P、全K、缓效钾和碱解氮的含量,但使速效磷和速效钾含量下降,土壤pH略有下降。荒地土壤胡敏酸的脂肪族侧链较多,胡敏酸较年轻,而玉米地土壤胡敏酸侧链较少,胡敏酸相对较老。荒地土壤胡敏酸的脂族性强于玉米地。农田生态条件使土壤胡敏酸老化。
|
| 关 键 词： | 灰漠土 农田生态 土壤有机质 土壤养分 土壤pH 胡敏酸 热解特性 红外光谱 |
| 收稿时间： | 2005-09-17 |
| 修稿时间： | 2005-09-172005-12-09 |
Effect of cropland ecological conditions on soil nutrient and humic acid characteristics of gray desert soil |
| |
| SUN Ben-Hu,GAO Ming-Xi,LU Jia-Long,WANG Xing and ZHANG Yi-Ping. Effect of cropland ecological conditions on soil nutrient and humic acid characteristics of gray desert soil[J]. Chinese Journal of Eco-Agriculture, 2007, 15(3): 18-20 |
| |
| Authors: | SUN Ben-Hu GAO Ming-Xi LU Jia-Long WANG Xing ZHANG Yi-Ping |
| |
| Affiliation: | College of Resources and Environment,Northwest A&F University,Yangling 712100,China;College of Resources and Environment,Northwest A&F University,Yangling 712100,China;College of Resources and Environment,Northwest A&F University,Yangling 712100,China;College of Resources and Environment,Northwest A&F University,Yangling 712100,China;College of Resources and Environment,Northwest A&F University,Yangling 712100,China |
| |
| Abstract: | The experiment compared soil nutrients,pyrolytic and infrared ray spectra characteristics of humic acid of soil between un-cropped and cropped lands to determine the effects of cropland ecosystems on gray desert soil nutrients and humic acid characteristics.The results show increase in soil organic matter,total N,total P,total K,slowly-available K and available N;but decrease in available P and available K,while there is a slight decrease in soil pH after planting.The fatty lateral chain of humic acid in un-cropped land soil is much more than that in cropped land soil.The fat characteristics of the humic acid in un-cropped soil is stronger than that in cropped land soil.Soil humic acid is older under cropland ecosystem conditions. |
| |
| Keywords: | Gray desert soil Cropland ecosystem Soil organic matter Soil nutrients Soil pH Humic acid Pyrolytic features Infrared spectra |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国生态农业学报》浏览原始摘要信息 |
|
点击此处可从《中国生态农业学报》下载全文 |
|
