干旱区生态环境知识资源中心(Arid): 太行山南麓3种典型人工林土壤碳氮分布特征

Arid

	太行山南麓3种典型人工林土壤碳氮分布特征
其他题名	Distribution Characteristics of Carbon and Nitrogen in Soil of Three Typical Artificial Forests in Southern Foot of Taihang Mountains
	苗蕾; 孙玉军; 杨喜田; 董斌
来源期刊	河南农业科学
ISSN	1004-3268
出版年	2015
卷号	44 期号:1 页码:52-56
中文摘要	为研究干旱半干旱地区森林土壤碳、氮分布特征,选取太行山南麓20年生侧柏、刺槐、栓皮栎人工次生林为研究对象,对林下0~60 cm土层的土壤有机碳、全氮、铵态氮、硝态氮含量及土壤物理性质进行测定。结果表明:3种人工林土壤容重随土层深度增加而增大,土壤含水率和孔隙度均表现出随土层深度增加而减少的趋势。3种人工林不同土层的土壤有机碳、氮(全氮、铵态氮、硝态氮)含量均呈现出随土层深度增加而减小的趋势,总体上有机碳和全氮含量均表现为刺槐人工林最高、侧柏人工林最低。3种人工林林下土壤剖面的C/N比值介于6.44~12.00,没有明显差异。3种人工林土壤有机碳含量与全氮、铵态氮、硝态氮(除侧柏人工林)含量均存在极显著相关性。3种人工林土壤含水率与土壤有机碳、全氮、铵态氮、硝态氮(除侧柏人工林)含量呈显著或极显著正相关;而土壤容重与之表现出一定的负相关关系,但仅侧柏人工林的有机碳、铵态氮、硝态氮与土壤容重的相关性达显著水平。
英文摘要	In order to explore the distribution characteristics of soil carbon and nitrogen in arid and semiarid areas,contents of soil organic carbon(SOC),total nitrogen(N),NH4+-N and NO3--N and soil physical characteristics were investigated in three 20 year-old artificial forests (Platycladus orientalis,Robinia hispida,Quercus variabili) in southern foot of Taihang mountain. The results showed that with the increase of the soil depth,bulk density of soil increased in three artificial forests;soil moisture content and soil capillary porosity decreased;contents of SOC,N(total N,NH_4~+-N and NO_3~--N) decreased; overall,for the contents of SOC and total N,Robinia hispida artificial forest was the highest,Platycladus orientalis artificial forest was the lowest. The C/N ratio of soil profiles had no significant differences with the value from 6. 44 to 12. 00. SOC content and soil moisture content were all significantly positively related with the contents of total N,NH4+-N and NO3-N (except Platycladus orientalis artificial forest) in three artificial forests;the soil bulk density was negatively related with the contents of SOC,total N,NH_4~+-N and NO_3~--N,but only significantly related with the contents of SOC,NH_4~+-N and NO_3~--N in soil of Platycladus orien-talis artificial forest.
中文关键词	太行山 ; 典型人工林 ; 土壤 ; 有机碳 ; 氮
英文关键词	Taihang mountain typical artificial forest soil organic carbon nitrogen
类型	Article
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:5333212
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232879
作者单位	苗蕾, 北京林业大学, 北京 100083, 中国.; 孙玉军, 北京林业大学, 北京 100083, 中国.; 杨喜田, 河南农业大学, 郑州, 河南 450002, 中国.; 董斌, 河南农业大学, 郑州, 河南 450002, 中国.
推荐引用方式 GB/T 7714	苗蕾,孙玉军,杨喜田,等. 太行山南麓3种典型人工林土壤碳氮分布特征[J]. 北京林业大学,2015,44(1):52-56.
APA	苗蕾,孙玉军,杨喜田,&董斌.(2015).太行山南麓3种典型人工林土壤碳氮分布特征.河南农业科学,44(1),52-56.
MLA	苗蕾,et al."太行山南麓3种典型人工林土壤碳氮分布特征".河南农业科学 44.1(2015):52-56.