干旱区生态环境知识资源中心(Arid): 陕北沙区不同利用方式风沙土的养分特征

Arid

	陕北沙区不同利用方式风沙土的养分特征
其他题名	Nutrient characteristics of aeolian sandy soils under different utilization in northern Shaanxi
	石辉 1; 吴金水 2; 陈占飞 3
来源期刊	植物营养与肥料学报
ISSN	1008-505X
出版年	2002
卷号	8 期号:4 页码:385-389
中文摘要	通过分析陕北沙区榆林市不同利用方式形成的流动风沙土、半固定风沙土、固定风沙土（紧沙土）和由人类生产活动形成的耕种固定风沙土、耕灌固定风沙土的养分特征，发现随着植被的增加，流动沙丘逐渐被固定，流动风沙土、半固定风沙土、固定风沙土含有较高养分的细颗粒增多使表层养分逐渐增加。耕种固定风沙土由于生产活动，加速了土壤有机质的矿化，使土壤有机质、氮素含量降低；而磷肥的使用，使土壤有效磷增加。耕灌固定风沙土作为当地的基本农田受人类活动影响，引水拉沙，增加土壤细颗粒含量，且大量施肥，使这种土壤的肥力有了较大地提高。
英文摘要	In this paper, the nutrient characteristics of five kinds of aeolian sandy sandy soils sampled fro Yulin municipality of northern Shaanxi Province were studied. Among these soils, moving, wemi-fixed, and fixed aeolian sandy soils are formed under natural conditions, and cultivated-fixed, irrigated-fixed aeolian sandy soils are formed through artificial cultivation activities. The results showed that with the increase of vegetation, moving dunes were gradually fixed, the nutrient content of surface soil gradually increased from moving aeolian sandy soil to semi-fixed and fixed aeolian sandy soil because the fine grains, which contain more nutrients, were not blown away at a large degree and the content of fine grains in soils gradually increased after vegetation cover improved. The contents of soil organic matter by human activities. Meanwhile, application of phosphorus fertilizer made the available phosphorus enhance. The irrigated-fixed aeolian sandy soil, the principal farmland in Yulin municipality, was intensively affected by artificial production activities. The fertility of irrigated-fixed aeolian sandy greatly improved by irrigation and fertilization, so the soil nutrient content was higher than that of other soils.
中文关键词	陕北沙区 ; 利用方式 ; 风沙土 ; 养分特征
英文关键词	desert region of northern Shaanxi aeolian sandy soils characteristics of nutrients
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:1111574
来源机构	中国科学院水利部水土保持研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203597
作者单位	1.西南师范大学资源环境学院, 北碚, 重庆 400715, 中国; 2.中国科学院水利部水土保持研究所, 杨凌, 陕西 712100, 中国; 3.陕西榆林市农业科学研究所, 榆林, 陕西 719000, 中国
推荐引用方式 GB/T 7714	石辉,吴金水,陈占飞. 陕北沙区不同利用方式风沙土的养分特征[J]. 中国科学院水利部水土保持研究所,2002,8(4):385-389.
APA	石辉,吴金水,&陈占飞.(2002).陕北沙区不同利用方式风沙土的养分特征.植物营养与肥料学报,8(4),385-389.
MLA	石辉,et al."陕北沙区不同利用方式风沙土的养分特征".植物营养与肥料学报 8.4(2002):385-389.