干旱区生态环境知识资源中心(Arid): Sand-fixing measures improve soil particle distribution and promote soil nutrient accumulation for desert

Arid

DOI	10.1016/j.ecolind.2023.111239
	Sand-fixing measures improve soil particle distribution and promote soil nutrient accumulation for desert - Yellow River coastal ecotone, China
	Li, Haonian; Dang, Xiaohong; Han, Yanlong; Qi, Shuai; Meng, Zhongju
通讯作者	Meng, ZJ
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2023
卷号	157
英文摘要	In the fragile desert ecosystems of the world, sand-fixing measures play an irreplaceable part in ecological restoration. However, it is unclear how the long-term establishment of sand-fixing measures affects soil particle distribution and soil nutrients for the desert - Yellow River coastal ecotone. Therefore, we selected sand-fixing measures that have been established for fifteen years: Pinus sylvestris (PS), Populus alba (PA), Elaeagnus angustifolia (EA), Hedysarum scoparium (HS), Salix psammophila (SC), Salix psammophila checkerboard barriers (SCSB), and mobile sandy land (LS). We analyzed soil physical properties, chemical properties, soil fractal dimension (D), and multi-fractal parameters in the top soil layer (0-20 cm). The results showed that the establishment of sandfixing measures significantly increased the clay and silt, and decreased the sand (p < 0.05). Sand-fixing measures promote the heterogeneity of soil particle distribution and increase its dispersion. The soil nutrition content was significantly increased under different sand-fixing measures (p < 0.05), and soil organic carbon (SOC) and alkaline nitrogen (AN) changed significantly. The D value is between 2.18 and 2.39. The D value and multifractal parameters were driven by soil physicochemical properties and aboveground biomass (AGB). The regression model demonstrates a significant correlation between the D values and multi-fractal parameters (R-2 = 0.58-0.77, p < 0.001). Therefore, we suggest that multifractal parameters can replace the D values as indicators of soil environmental changes in desertification. This study complements the information on the restoration of soils in the desert-Yellow River coastal ecotone by sand-fixing measures. In addition, we suggest that desert ecological management should be tailored to regional environmental differences to establish an integrated model of restoration of sand-fixing measures in the future. The results of this study scientifically provide a theoretical basis for the future reconstruction of ecologically fragile areas.
英文关键词	Ecologically fragile areas Sand-fixing measures Soil quality Soil fractal parameters Environmental indicators
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001113278000001
WOS关键词	SIZE DISTRIBUTION ; LOESS PLATEAU ; ROOT DISTRIBUTION ; ORGANIC-CARBON ; LAND ; RESTORATION ; WIND ; DESERTIFICATION ; GRASSLAND ; PATTERNS
WOS类目	Biodiversity Conservation ; Environmental Sciences
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/2XILL650/395986
推荐引用方式 GB/T 7714	Li, Haonian,Dang, Xiaohong,Han, Yanlong,et al. Sand-fixing measures improve soil particle distribution and promote soil nutrient accumulation for desert - Yellow River coastal ecotone, China[J],2023,157.
APA	Li, Haonian,Dang, Xiaohong,Han, Yanlong,Qi, Shuai,&Meng, Zhongju.(2023).Sand-fixing measures improve soil particle distribution and promote soil nutrient accumulation for desert - Yellow River coastal ecotone, China.ECOLOGICAL INDICATORS,157.
MLA	Li, Haonian,et al."Sand-fixing measures improve soil particle distribution and promote soil nutrient accumulation for desert - Yellow River coastal ecotone, China".ECOLOGICAL INDICATORS 157(2023).