干旱区生态环境知识资源中心(Arid): 半干旱区柠条植物篱水分再分配格局研究

Arid

	半干旱区柠条植物篱水分再分配格局研究
其他题名	Soil Water Redistribution Pattern of Caragana intermedia Hedgerow System in Semi-arid Area
	党汉瑾 1; 党宏忠 2; 王玉魁 1; 周泽福 1
来源期刊	林业科学研究
ISSN	1001-1498
出版年	2014
卷号	27 期号:6 页码:745-751
中文摘要	通过对黄土高原丘陵沟壑区26年生柠条植物篱不同部位(带间、带前、带内、带后)土壤水分的2年监测,对比分析了柠条植物篱不同部位土壤水分的分布特征及其动态,探讨了柠条植物篱对降水的再分配效应。结果表明:带状柠条植物篱内不同部位间土壤水分物理性质有明显的不同,其中,带内部位土壤密度(0.99 g ? cm~(-3))、非毛管孔隙度(8. 77% )、毛管持水量(58. 89% )等均优于带间、带前、带后,土壤更为疏松,透水保水性能更良,而带前更加黏性化;随着土壤深度的增加,各部位土壤含水量均表现出逐层降低的趋势,依次为0~20 cm(25.51% 2. 28%)> 40~60 cm(12. 96% 1.34%) >60~80 cm( 10. 03% 0. 59%) >80~100cm(9. 16% 0.81%) >100~120cm (8. 76% 1. 00% ),但越接近表层,带前、带内部位土壤水分含量的优势更明显。根据对土壤水分的有序聚类分析,将柠条植物篱土壤层次划分为弱利用层、利用层和调节层3层,其中,带内的土壤水分利用层(20~120cm)大于带前、带后(20~60cm)和带间(40~60 cm),与柠条对土壤水分的主要利用层次相一致,带内的土壤水分调节层在120 cm以下,较带间(80 cm以下)和带前、带后(60 cm以下)均深,反映了带状植物篱带前、带内土壤含水率提高而带后表层土壤含水率降低的分异特征。
英文摘要	The soil moisture contents at four locations (inter-band, front-band, inner-band and behind-band) of Caragana intermedia hedgerow system which was located in the hilly area of Loess Plateau were measured for 2 years. The results indicated that there were obvious differences in soil water physical properties among locations. The soil bulk density(0. 99 g ? cm ~(-3)),non-capillary porosity(8. 77% ) and capillary moisture capacity(58. 89 % ) of inner-band were better than the other parts of the system with looser soil and higher soil water permeability and water retention. The soil of front-band was stickier than that of the others. The soil moisture content of each position decreased by the order 0-20 cm (25. 51% 2. 28% ) > 40 -60 cm ( 12. 96% 1. 34% ) > 60 -80 cm (10. 03% 0. 59% ) > 80 - 100 cm (9. 16% 0. 81% ) > 100- 120 cm (8. 76% 1. 00% ) with depths, for the surface layer, the soil moisture contents of the front-band and inner-band were higher than that of the others. The profile of soil moisture of hedgerow system were divided into three layers based on the orderly cluster analysis of soil moisture, namely,weak moisture utilizing layer,moisture utilizing layer,and moisture regulating layer. The depth of moisture utilizing layer of inner-band soil (20-120 cm) was greater than that of front-band,behind-band (20-60 cm) and inter-band (40 -60 cm),similarly, the moisture regulating layer of inner-band soil (below 120 cm) was deeper than that of inter-band (below 80 cm),front-band (below 60 cm) and behind-band (below 60 cm),too, which reflected the effects of runoff intercepting, enriching soil moisture to the inner-band,high infiltration and reservoir of hedgerow system.
中文关键词	半干旱区 ; 柠条 ; 植物篱 ; 土壤水分 ; 水分再分配
英文关键词	semi-arid area Caragana intermedia hedgerow soil moisture soil water redistribution
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:5322150
来源机构	中国林业科学研究院荒漠化研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231439
作者单位	1.中国林业科学研究院国家林业局竹子研究开发中心, 杭州, 浙江 310012, 中国; 2.中国林业科学研究院荒漠化研究所, 北京 100091, 中国
推荐引用方式 GB/T 7714	党汉瑾,党宏忠,王玉魁,等. 半干旱区柠条植物篱水分再分配格局研究[J]. 中国林业科学研究院荒漠化研究所,2014,27(6):745-751.
APA	党汉瑾,党宏忠,王玉魁,&周泽福.(2014).半干旱区柠条植物篱水分再分配格局研究.林业科学研究,27(6),745-751.
MLA	党汉瑾,et al."半干旱区柠条植物篱水分再分配格局研究".林业科学研究 27.6(2014):745-751.