| 易小波,王力,王丽,王梅.水蚀风蚀区六道沟流域不同土地利用方式下养分特征[J].干旱地区农业研究,2012,30(2):52~55 |
| 水蚀风蚀区六道沟流域不同土地利用方式下养分特征 |
| Characteristics of soil nutrients under different land use types in Liudaogou watershed of water and wind erosion area |
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| DOI：10.7606/j.issn.1000-7601.2012.02.09 |
| 中文关键词: 六道沟流域 养分特征 有机质 氮 磷 钾 |
| 英文关键词:Liudaogou watershed nutrient organic matter N P K |
| 基金项目:中国科学院“西部行动”计划资助项目(第3期)；西北农林科技大学基本科研业务费资助项目“榆神府煤田开发区水土环境演变与修复”(QN2009084) |
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| 中文摘要: |
| 利用经典统计与地统计学相结合的方法,以六道沟流域农用地、林地和草地三种土地类型为研究对象，测定各不同利用方式下土壤有机质、全氮、全磷、全钾、速效氮、速效磷、速效钾、C/N值八种养分指标。结果表明，土壤有机质、全氮含量表现为农用地＞林地＞草地，全磷含量表现为农用地＞草地＞林地，土壤全钾含量表现为草地＞林地＞农用地，速效氮含量表现为农用地＞草地＞林地，速效磷表现为农用地＞林地＞草地，速效钾表现为林地＞农用地＞草地；土壤C/N值表现为林地＞草地＞农用地；有机质含量与全氮含量呈线性关系，且均达极显著水平（P<0.01）。结果说明不同土地利用方式对土壤养分含量有重要影响。 |
| 英文摘要: |
| A study was carried out on the characteristics of soil nutrients under three land use types of farmland, forest and grassland in Liudaogou watershed by using traditional statistics combined with geo-statistics. The result showed that soil organic matter content was farmland＞forest＞grassland, soil total N content was farm land＞forest＞grassland, soil total K was grassland＞forest＞farmland, available nitrogen content was farmland＞forest＞grassland, available P was farmland forest＞grassland, available potassium was forest＞farmland＞grassland; soil C/N was forest＞grassland＞farmland; It showed a linear relationship between organic matter content and total nitrogen content, and reached a significant level (P<0.01). Different land use types had important influences on soil nutrient content. |
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