干旱区生态环境知识资源中心(Arid): 半干旱地区林型对土壤有机碳的影响以会宁为例

Arid

	半干旱地区林型对土壤有机碳的影响以会宁为例
其他题名	Effects of forest types on soil organic carbon in semi-arid area: A case study of Huining County
	李梦天; 秦燕燕; 曹建军; 许雪贇; 龚毅帆
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2018
卷号	37 期号:12 页码:3541-3548
中文摘要	研究林型对土壤有机碳(SOC)的影响,是采取合理林业管理措施的关键。以甘肃省会宁县为研究区,对3种林型(杏树林、白杨林、柳树林)的土壤SOC进行了对比研究。结果发现:在立地条件相似的情况下,3种林型土壤SOC均随土壤深度的增加而降低,其值变化范围分别为2.85~19.05、1.67~11.97和1.80~16.05 g·kg~(-1)。杏树林土壤SOC显著高于白杨林和柳树林,但保水能力却低于白杨林;SOC与容重、pH呈显著负相关;影响白杨林土壤SOC的主导因子为含水量,影响柳树林土壤SOC的主导因子为pH与含水量,而影响杏树林土壤SOC的主导因子为pH与容重。该研究结果表明,在半干旱地区实施造林时,如只考虑水土保持效益,白杨林是首选林种;如只考虑固碳潜力,则杏树林对减排增汇尤为重要。
英文摘要	Exploring the effects of forest types on soil organic carbon (SOC) is critical for facilitating sustainable forestry management. Here, we compared SOC contents of three forest types, including apricot forest, poplar forest, and willow forest, in Huining County in central Gansu Province, China. The results showed that, under similar site conditions, SOC contents of all the three forest types decreased with increasing soil depth. SOC content of the apricot forest ranged from 2.85 g·kg~(-1) to 19.05 g·kg~(-1), while for the poplar forest and willow forest, it ranged from 1.67 g·kg~(-1) to 11.9 g·kg~(-1), and from 1.80 g·kg~(-1) to 16.05 g·kg~(-1), respectively. The apricot forest had significantly higher SOC content than the poplar forest and willow forest, but lower water conservation capacity than the poplar forest. SOC content was significantly negatively correlated to soil bulk density and pH across the three forest types. Soil water content was the dominant factor affecting SOC content of the poplar forest, pH and soil water content were the dominant factors in the willow forest, while pH and soil bulk density were the dominant factors in the apricot forest. Our results suggest that during implementing afforestation in semi-arid areas, the poplar should be the preferred species if only considering the benefits of soil and water conservation. If only considering the potential of carbon sequestration, however, the apricot forest is particularly important for reducing emission and enhancing carbon sink.
中文关键词	植树造林 ; 黄土高原 ; 林型 ; 土壤有机碳 ; 节能减排
英文关键词	afforestation Loess Plateau forest type soil organic carbon energy conservation and emission reduction
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:6386243
来源机构	中国科学院西北生态环境资源研究院 ; 西北师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238208
作者单位	李梦天, 西北师范大学地理与环境科学学院, 兰州, 甘肃 730000, 中国.; 曹建军, 西北师范大学地理与环境科学学院, 兰州, 甘肃 730000, 中国.; 许雪贇, 西北师范大学地理与环境科学学院, 兰州, 甘肃 730000, 中国.; 龚毅帆, 西北师范大学地理与环境科学学院, 兰州, 甘肃 730000, 中国.; 秦燕燕, 中国科学院西北生态环境资源研究院, 中国科学院寒旱区陆面过程与气候变化重点实验室, 兰州, 甘肃 730000, 中国.
推荐引用方式 GB/T 7714	李梦天,秦燕燕,曹建军,等. 半干旱地区林型对土壤有机碳的影响以会宁为例[J]. 中国科学院西北生态环境资源研究院, 西北师范大学,2018,37(12):3541-3548.
APA	李梦天,秦燕燕,曹建军,许雪贇,&龚毅帆.(2018).半干旱地区林型对土壤有机碳的影响以会宁为例.生态学杂志,37(12),3541-3548.
MLA	李梦天,et al."半干旱地区林型对土壤有机碳的影响以会宁为例".生态学杂志 37.12(2018):3541-3548.