Distribution of soil carbon and nitrogen in two typical forests in the semiarid region of the Loess Plateau, China

doi:10.1016/j.catena.2016.04.004

ISWC OpenIR > 水保所科研产出--SCI > 2016--SCI

	Distribution of soil carbon and nitrogen in two typical forests in the semiarid region of the Loess Plateau, China
	Bian-Lan Song 1,2,4; Mei-Jie Yan 1,2; Hao Hou 2; Jin-Hong Guan 1,2; Wei-Yu Shi 3; Guo-Qing Li 1,2; Sheng Du 1,2
文章类型	article
	2016-04-17
发表期刊	Catena
通讯作者邮箱	yanmj@ms.iswc.ac.cn ; shengdu@ms.iswc.ac.cn
期号	143 页码:159-166
摘要	Forest ecosystems on the Loess Plateau are receiving increasing attention for their special importance in carbon sequestration and in the conservation of soil and water in the region. To evaluate soil carbon and nitrogen accumulation in two typical forests in the region, we conducted plot surveys in three near-mature stands for each forest type. Soil samples within 0–200 cmwere collected fromdifferent depths, and the soil organic carbon (SOC), inorganic carbon (SIC), and total nitrogen (STN)were measured. The results indicate that the oak (Quercus liaotungensis) forests had greater SOC and STNcontents and lower soil buck density than the black locust (Robinia pseudoacacia) plantations within top soil layers. Both SOC and STN contents decreased with soil depth, and the differences between the forest types became insignificant in layers beneath 50 cm. The total accumulations of SOC and STN were larger in the oak forests than in the black locust plantations, particularly in the upper soil layers. The results suggest that the oak forest has advantages over the plantation forest regarding SOC and nitrogen accumulation in the upper soil layer, and both types of forest soils have acted as substantial carbon sinks. However, in the loess soil in this region, there were considerable amounts of SIC storage (4–5 times of SOC in deep layers), and the amounts of soil total carbon (STC) did not differ obviously between the two ecosystems. Relative to the conventional soil survey of 100-cm depth, the SOC, STN and STC stored in 100–200 cm deep soil account for 0.45, 0.49 and 0.91 times in the oak forests, respectively, compared to 0.65, 0.65 and 1.01 times in the black locust plantations for SOC, STN and STC, respectively. Thick loess soil coupled with dry climate may be attributable to the development of root system and consequent SOC and STN distribution into deeper layer. This suggests that deep soil layers contribute considerable amounts and should not be omitted in soil carbon estimates.
关键词	Carbon Storage Loess Plateau Soil Organic Carbon (Soc) Soil Inorganic Carbon (Sic) Soil Total Nitrogen (Stn) Vertical Distribution
DOI	10.1016/j.catena.2016.04.004
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000376800800018
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/7748
专题	水保所科研产出--SCI_2016--SCI
通讯作者	Sheng Du
作者单位	1.State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling, Shaanxi 712100, China 2.Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China 3.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China 4.University of Chinese Academy of Sciences, Beijing 100049, China
推荐引用方式 GB/T 7714	Bian-Lan Song,Mei-Jie Yan,Hao Hou,et al. Distribution of soil carbon and nitrogen in two typical forests in the semiarid region of the Loess Plateau, China[J]. Catena,2016(143):159-166.
APA	Bian-Lan Song.,Mei-Jie Yan.,Hao Hou.,Jin-Hong Guan.,Wei-Yu Shi.,...&Sheng Du.(2016).Distribution of soil carbon and nitrogen in two typical forests in the semiarid region of the Loess Plateau, China.Catena(143),159-166.
MLA	Bian-Lan Song,et al."Distribution of soil carbon and nitrogen in two typical forests in the semiarid region of the Loess Plateau, China".Catena .143(2016):159-166.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
2-----s2.0-S03418162（790KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载