干旱区生态环境知识资源中心(Arid): 青海省东部山区旱作农田土壤团聚体特征研究

Arid

	青海省东部山区旱作农田土壤团聚体特征研究
其他题名	Characteristics of Aggregates of Arid Soil in Eastern Mountain Area of Qinghai
	李月梅 1; 徐仁海 2; 曹广民 2
ISSN	0564-3945
出版年	2006
卷号	37 期号:4 页码:640-643
中文摘要	比较了青海省东部山区垂直梯度分布的三种旱作农田土壤(黑钙土、栗钙土、灰钙土),在0～60cm土层的不同粒级土壤风干团聚体和水稳性团聚体含量间的差异,并结合其它土壤质量指标(有机质、粘粒)对不同土壤结构和抗侵蚀能力进行了综合评价.结果表明,＞0.25mm风干团聚体、＞0.25mm水稳性团聚体含量和土壤有机质含量与土壤类型间有密切关系.均表现为黑钙土＞栗钙土＞灰钙土.黑钙土和栗钙土的土壤有机质含量与＞0.25mm水稳性团聚体间存在显著正相关关系(P＜0.05),灰钙土则无明显相关性;三种土壤粘粒含量与＞0.25mm风干团聚体和0.25mm水稳性团聚体含量间无明显相关性.各项指标综合比较,三种土壤抗侵蚀能力大小为:黑钙土＞栗钙土＞灰钙土.
英文摘要	The differences of soil air-dried aggregates, water-stable aggregates and some soil quality indicators (soil organic matter, clay) among three arid soil (chernozems , castanozems, sierozem ) in 0 -60 cm soil depth in Qinghai province were compared in this paper. The result showed that the content of >0. 25mm air-dried aggregates, >0. 25mm water - stable aggregates, clay and SOM was related to the soil type closely. The content of clay and SOM appeared to be positively correlated with that of >0.25 mm air-dried aggregates and water-stable aggregates, and furthermore, clay content was negatively correlated with the rate of aggregates destruction. According to the results of above all, the ability of anti-erosion in the soil was found to be of the order: chernozems > castanozems > sierozem.
中文关键词	旱作农田土壤 ; 水稳性团聚体 ; 粘粒 ; 土壤有机质
英文关键词	Arid soil Water - stable aggregates Clay Soil organic matter
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:2414193
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220231
作者单位	1.青海省农科院,土壤肥料研究所, 西宁, 青海 810016, 中国; 2.青海省农科院,作物所, 西宁, 青海 810016, 中国
推荐引用方式 GB/T 7714	李月梅,徐仁海,曹广民. 青海省东部山区旱作农田土壤团聚体特征研究[J],2006,37(4):640-643.
APA	李月梅,徐仁海,&曹广民.(2006).青海省东部山区旱作农田土壤团聚体特征研究.,37(4),640-643.
MLA	李月梅,et al."青海省东部山区旱作农田土壤团聚体特征研究".37.4(2006):640-643.