干旱区生态环境知识资源中心(Arid): Effects of land use patterns on soil properties and nitrous oxide flux on a semi-arid environmental conditions of Loess Plateau China

Arid

DOI	10.1016/j.gecco.2024.e02899
	Effects of land use patterns on soil properties and nitrous oxide flux on a semi-arid environmental conditions of Loess Plateau China
	Yuan, Jianyu; Yao, Yao; Guan, Yuqi; Sadiq, Mahran; Li, Jie; Liu, Shuainan; Lu, Yanhua; Xu, Guorong; Du, Mengyin; Li, Guang; Yan, Lijuan
通讯作者	Li, G
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
EISSN	2351-9894
出版年	2024
卷号	51
英文摘要	Ecosystems and agroecosystems strongly influences the global warming by nitrogen oxide (N2O) emission. In a recent climate change scenario, nitrogen and carbon sequestration is obligatory under different land-use patterns. However, soil nitrogen elements and carbon content in the recover process of degraded environmental conditions on the Dingxi Loess Plateau has not been clearly understood. Thus, in this current study, we selected four representative land use patterns, including picea asperata (PA), which is based on forest land; Medicago sativa (MS), which is based on grassland; abandoned bare land (AL), which is based on abandoned land; and wheat field (WF), which is based on farmland, to study soil quality indicators and N2O greenhouse gas and relationships amongst environmental factors and N2O flux. Our results depicted that PA and MS significantly increased organic carbon (SOC), total phosphorous (TP), gravimetric water content (SWC), soil bulk density (BD), total nitrogen (TN), ammonium nitrogen (NH4+-N), and microbial biomass nitrogen (MBN) whist decreased soil nitrate nitrogen (NO3--N) content and soil pH value over AL land-use pattern. However, WF land-use pattern showed reduced trend of above mention studied parameters than AL. Additionally, compared to AL, PA and MS significantly reduced the total soil N2O emissions, with reductions of 24.91% and 14.77% in 2021 and 29.08% and 17.53% in 2022, respectively. The WF significantly increased the total N2O emissions, increasing by 53.18% and 40.37% in 2021 and 2022, respectively. Moreover, environmental variables for instance aerial temperature, precipitation had significant correlation with soil N2O based on linear regression analysis, soil NO3 - -N and soil temperature had significant positive correlation with soil N2O flux while NH4+-N, BD, and SWC were negatively correlated with N2O flux. The Partial Least Squares Path Model (PLS-PM) indicates that soil temperature and soil moisture was the dominant factor for controlling soil N2O emissions followed by soil nutrients and land use patterns. Accordingly, in the context of vegetation restoration process of the study area, the proportion of forest land and grassland should be increase to cope with future climate change scenario. This research result can provide theoretical basis and technical support for scientific understanding and evaluation of soil N2O emission mechanisms and nitrogen sink functions under different land-use patterns in semi-arid region of China.
英文关键词	Nutrients N2O emissions Global climate change Land use patterns Vegetation restoration
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001258442500001
WOS关键词	N2O EMISSIONS ; STOICHIOMETRIC RATIOS ; REGION ; CARBON ; VARIABILITY ; RESPONSES ; ROTATION ; BIOCHAR
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403992
推荐引用方式 GB/T 7714	Yuan, Jianyu,Yao, Yao,Guan, Yuqi,et al. Effects of land use patterns on soil properties and nitrous oxide flux on a semi-arid environmental conditions of Loess Plateau China[J],2024,51.
APA	Yuan, Jianyu.,Yao, Yao.,Guan, Yuqi.,Sadiq, Mahran.,Li, Jie.,...&Yan, Lijuan.(2024).Effects of land use patterns on soil properties and nitrous oxide flux on a semi-arid environmental conditions of Loess Plateau China.GLOBAL ECOLOGY AND CONSERVATION,51.
MLA	Yuan, Jianyu,et al."Effects of land use patterns on soil properties and nitrous oxide flux on a semi-arid environmental conditions of Loess Plateau China".GLOBAL ECOLOGY AND CONSERVATION 51(2024).