干旱区生态环境知识资源中心(Arid): Changes in soil organic carbon and total nitrogen stocks in response to walnut plantation in the southern region of the Loess Plateau, China

Arid

DOI	10.1080/15324982.2019.1574933
	Changes in soil organic carbon and total nitrogen stocks in response to walnut plantation in the southern region of the Loess Plateau, China
	Gao, Pengxiang; Zheng, Xiaofeng; Wang, Lai; Zhong, Chonggao; Zhang, Shuoxin
通讯作者	Zhang, SX
来源期刊	ARID LAND RESEARCH AND MANAGEMENT
ISSN	1532-4982
EISSN	1532-4990
出版年	2020
卷号	34 期号:1 页码:52-67
英文摘要	Afforestation of croplands has been widely adopted on the semi-arid Loess Plateau in recent decades. However, knowledge of soil carbon and nitrogen changes after afforestation is still limited because of the complexity of afforestation approaches. Therefore, an experiment was conducted on two dominant arable soils (tableland soil and terrace soil) on the southern Loess Plateau to evaluate the impact of two afforestation approaches (walnut monocultures and walnut-based agroforestry) on the soil organic carbon (SOC) and soil total nitrogen (STN) content within 2 m soil profiles. In the tableland soil, compared with the continuous crop monoculture (135.90 t C ha(-1)), SOC stocks in the agroforestry and walnut monoculture system increased by 7.91% and 1.91%, respectively. While in the terrace soil, compared with crop monoculture (102.95 t C ha(-1)), SOC stocks in the agroforestry and walnut monoculture system decreased by 3.86% and 0.20%, respectively. The STN stock was lower in the tree monocultures and SOC content was significantly correlated with STN. Afforestation increased the SOC and STN stocks in the 0-10 cm soils, but decreased them in the 10-60 cm soils. In the deep soil layers (60-200 cm), SOC content increase was only found in agroforestry in the tableland soil, and no significant differences were found in the terrace soil. Converting cropland to agroforestry has advantages in terms of soil carbon sequestration.
英文关键词	Afforestation agroforestry intercropping terrace
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000585305200004
WOS关键词	INTERCROPPING SYSTEM ; AGROFORESTRY SYSTEMS ; AFFORESTATION ; SEQUESTRATION ; FOREST ; IMPACT ; MAIZE ; PINUS ; DECOMPOSITION ; REFORESTATION
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327287
作者单位	[Gao, Pengxiang; Zheng, Xiaofeng; Wang, Lai; Zhong, Chonggao; Zhang, Shuoxin] Northwest A&F Univ, Coll Forestry, 3 Taicheng Rd, Yangling 712100, Shaanxi, Peoples R China; [Zhang, Shuoxin] Qinling Natl Forest Ecosyst Res Stn, Yangling, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Gao, Pengxiang,Zheng, Xiaofeng,Wang, Lai,et al. Changes in soil organic carbon and total nitrogen stocks in response to walnut plantation in the southern region of the Loess Plateau, China[J]. 西北农林科技大学,2020,34(1):52-67.
APA	Gao, Pengxiang,Zheng, Xiaofeng,Wang, Lai,Zhong, Chonggao,&Zhang, Shuoxin.(2020).Changes in soil organic carbon and total nitrogen stocks in response to walnut plantation in the southern region of the Loess Plateau, China.ARID LAND RESEARCH AND MANAGEMENT,34(1),52-67.
MLA	Gao, Pengxiang,et al."Changes in soil organic carbon and total nitrogen stocks in response to walnut plantation in the southern region of the Loess Plateau, China".ARID LAND RESEARCH AND MANAGEMENT 34.1(2020):52-67.