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Impacts of long-term abandonment of alfalfa plantations on soil physicochemical properties and plant diversity in an agricultural pastoral ecotone

文献类型：期刊论文

作者Zhang, Qian1,4; Fan, Jun1,2; Jia, Mulin1,4; Shi, Changchun3
刊名PLANT AND SOIL
出版日期2023-09-01
页码16
ISSN号0032-079X
关键词Agricultural pastoral ecotone Alfalfa field Plant species diversity Soil nutrient content Soil water content
DOI10.1007/s11104-023-06246-6
通讯作者Fan, Jun(fanjun@ms.iswc.ac.cn)
英文摘要Background and aimsThe abandonment of alfalfa fields is increasing in a semi-arid region. To determine the change of soil physicochemical properties and plant diversity in abandoned alfalfa fields for a long-term is essential for vegetation restoration. This study surveyed alfalfa fields of different planting ages in 2003 (1-30 years), 2014 (12-41 years), and 2022 (20-49 years) to explore the change in various indicators using a space-for-time method.ResultsThe results suggested that abandoned alfalfa fields converted into natural grasslands after 15 years, where the abundances of Gramineae and Asteraceae (59.1-84.0%) increased, whereas those of legumes decreased (16.5-9.4%). As the plant composition changed, the soil water content (SWC) decreased by 19.0% 1-15 years after abandonment, but increased by 54.5% 15-49 years after abandonment. The plant diversity (Margalef, Pielou, Simpson, and Shannon-Wiener indices), and soil organic carbon (SOC), and total nitrogen (TN) contents increased by 0.5% to 51.5% with the number of years alfalfa planting. Furthermore, the plant composition significantly affected the SWC through the soil physicochemical characteristics and plant diversity.ConclusionsThis study demonstrated that the longest time of alfalfa planting was 15 years. Furthermore, the plant composition changed from alfalfa to local grasses due to the natural succession of abandoned alfalfa fields, with increases in SWC, SOC, TN, and plant diversity in the semi-arid region.
WOS关键词SEMIARID LOESS PLATEAU ; MEDICAGO-SATIVA L. ; LAND-USE ; VEGETATION DEVELOPMENT ; ECOSYSTEM STABILITY ; CARBON STORAGE ; ORGANIC-CARBON ; WATER-BALANCE ; CHINA GRAIN ; OLD-FIELDS
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23070202] ; Research and Demonstration on Driving Mechanism and Resistance Control Technology of Secondary Desertification in Yulin Desert Oasis[YF-20229] ; National Natural Science Foundation of China[41977016]
WOS研究方向Agriculture ; Plant Sciences
语种英语
出版者SPRINGER
WOS记录号WOS:001059898900003
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Research and Demonstration on Driving Mechanism and Resistance Control Technology of Secondary Desertification in Yulin Desert Oasis ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/197977]  
专题中国科学院地理科学与资源研究所
通讯作者Fan, Jun
作者单位1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
3.Shaanxi Acad Forestry, China State Long Term Observat & Res Stn Mu Us San, Yulin 719000, Shaanxi, Peoples R China
4.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Qian,Fan, Jun,Jia, Mulin,et al. Impacts of long-term abandonment of alfalfa plantations on soil physicochemical properties and plant diversity in an agricultural pastoral ecotone[J]. PLANT AND SOIL,2023:16.
APA Zhang, Qian,Fan, Jun,Jia, Mulin,&Shi, Changchun.(2023).Impacts of long-term abandonment of alfalfa plantations on soil physicochemical properties and plant diversity in an agricultural pastoral ecotone.PLANT AND SOIL,16.
MLA Zhang, Qian,et al."Impacts of long-term abandonment of alfalfa plantations on soil physicochemical properties and plant diversity in an agricultural pastoral ecotone".PLANT AND SOIL (2023):16.

入库方式： OAI收割

来源：地理科学与资源研究所

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