干旱区生态环境知识资源中心(Arid): 荒漠草原人工柠条林对土壤物理稳定性的影响

Arid

	荒漠草原人工柠条林对土壤物理稳定性的影响
其他题名	Effect of Artificial Caragana intermedia Shrubs on Soil Physical Stability in Desert Steppe
	潘军 1; 宋乃平1 ; 吴旭东 2; 杨新国 1; 陈林1
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2014
卷号	28 期号:4 页码:172-176
中文摘要	采用时空互代方法,通过测定荒漠草原植被恢复过程中不同林龄人工柠条林(9 a,17 a,27 a)0-40 cm 土层土壤颗粒组成、土壤有机碳(SOC)含量,研究人工柠条对土壤物理稳定性的影响。结果表明,人工柠条林建植过程中,各林龄土壤的颗粒组成均以细沙粒(0. 05?0. 25 mm)为主,其在柠条灌丛不同部位所占百分比为内部大于外部,不同种植年限柠条土壤粘粉粒百分比均随土层深度增加而逐渐降低,粘粉粒(<0.05 mm)含量的增加和中粗沙(>0.25 mm)含量的减少,共同导致柠条林下土壤质地细粒化;不同林龄柠条灌丛各部位SOC含量在垂直剖面上随着深度的增加逐渐降低,且呈现显著差异(P<0. 01);不同林龄柠条灌丛不同部位SOC含量为灌丛内部大于外部;各林龄柠条灌丛土壤物理稳定性在各年限的内外部整体上呈现极显著性差异(P<0. 01),各年限内、外部随土壤深度的增加土壤的物理稳定性表现为先增大后减小的趋势,在0 5 cm和20 40 cm 土层,各年限的土壤物理稳定性整体上是内部大于外部;在5-20 cm 土层,各年限土壤物理稳定性整体上是外部大于内部,局部有波动。
英文摘要	Using spatiotemporal substitution method, soil particle-size distribution and soil organic carbon content(SOC) were measured in-shrub and out-shrub of 0 40 cm soil layers under different planting yeas (9 a, 17 a, 27 a) of Caragana intermedia shrubs in the desert steppe in Ningxia, and then soil physical stability was researched. The results showed that: With the increase of the planting years of Caragana intermedia shrubs, in the particle composition, the particle-size was mainly ranging from 0. 05 mm to 0. 25 mm in each shrubs, and the percentage of fine sand in-shrub was bigger than out-shrub, especially, the percentage of fine sand decreased gradually with increasing soil layer in planted years of 9 a,17 a and 27 a. With the increase of planted years, the top soil (0 40 cm) gradually changed from coarse graining (0. 25 mm) into sandy loam effectivelly. The content of SOC decreased gradually with increasing soil layer in planted years of 9 a,17 a and 27 a,and there were showing a significant difference (P<0. 01) among 9 a,17 a and 27 a. The content of SOC in-shrub was bigger than out-shrub with soil layers increasing. The physical stability of desert soil changed significantly (P<0. 01) at each planted years and each sites,the physical stability of the soil showed a decreasing trend after the first increased with the increase of the soil depth at every years and every sites. The physical stability of the soil inside the artificial Caragana intermedia shrubs was bigger than out-shrub in 0-5 cm and 20 40 cm, while in 5 20 cm showed a contrary trend.
中文关键词	荒漠草原 ; 人工柠条林 ; 土壤稳定性
英文关键词	desert steppe artificial Caragana intermedia soil physical stability
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:5218860
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231770
作者单位	1.宁夏大学, 土地退化与生态恢复国家重点实验室培育基地, 银川, 宁夏 750021, 中国; 2.宁夏大学农学院, 银川, 宁夏 750021, 中国
推荐引用方式 GB/T 7714	潘军,宋乃平,吴旭东,等. 荒漠草原人工柠条林对土壤物理稳定性的影响[J]. 宁夏大学,2014,28(4):172-176.
APA	潘军,宋乃平,吴旭东,杨新国,&陈林.(2014).荒漠草原人工柠条林对土壤物理稳定性的影响.水土保持学报,28(4),172-176.
MLA	潘军,et al."荒漠草原人工柠条林对土壤物理稳定性的影响".水土保持学报 28.4(2014):172-176.