Characteristics of soil nutrients and their relationship with soil microbial properties in Artemisia sacrorum communities in the loess hilly region

Song, Lijuan; Liu, Weiyang; Wu, Huifeng; Gao, Tian; Hao, Wenfang

doi:10.25165/j.ijabe.20181103.3942

Cited by 3 publications

(3 citation statements)

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“…Previous studies have shown that afforestation not only improves the soil environment (Zhao et al, 2017), including soil nutrients, moisture, and structure (Deng, Kim, Peng, & Shangguan, 2018; Xiao et al, 2017; Zhang, An, Cai, Guo, & Xiao, 2017; Zhu, Deng, Zhang, & Shangguan, 2016) of plants, but also significantly influences plant diversity (Abella, 2010; Díaz‐García, Pineda, López‐Barrera, & Moreno, 2017; Laughlin et al, 2017; Xiao et al, 2017) and ecosystem productivity (Uthappa et al, 2018). Many studies have also reported that soil nutrients such as nitrogen and phosphorus are important factors affecting vegetation coverage, plant community composition, and plant diversity (Chen et al, 2017; Liu, Xing, & Yang, 2017; Sanaei, Ali, & Chahouki, 2018; Seabloom et al, 2017; Song, Liu, Wu, Gao, & Hao, 2018; Wei et al, 2017; Zhu, Tang, Shangguan, & Deng, 2018). Competition for soil resources, especially nitrogen, leads to spatial heterogeneity in communities and there is a relationship between competition and coexistence within plant communities (Tilman, 1982, 1985).…”

Section: Introductionmentioning

confidence: 99%

Effects of vegetation restoration on soil nutrients, plant diversity, and its spatiotemporal heterogeneity in a desert–oasis ecotone

Deng

Huang

et al. 2020

Land Degrad Dev

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Vegetation restoration has been proposed as an effective measure for rehabilitating degraded land and slowing desertification in arid regions. However, the spatial variation in soil quality and plant diversity following vegetation restoration remains unclear. This study was designed to explore soil nutrient dynamics and how soil nutrients affect plant diversity and spatial heterogeneity after shrub restoration. We assessed the effect of Haloxylon ammodendron (C.A.Mey.) Bunge (which has been planted over 30 years) on the soil nutrients and plant diversity in a desert–oasis ecotone in Minqin County, Gansu, China, using geostatistics, beta diversity and rarefaction analyses, and Hill number extrapolation. Soil nutrients, including soil organic matter, total nitrogen, and alkali nitrogen, increased significantly after H. ammodendron planting. Species richness gradually increased from 1–5 years to 10–20 years after H. ammodendron was planted but then decreased at 20–30 years. The largest differences in plant composition were observed at 15 and 20 years. Plant diversity increased in the whole 30 years after shrub planting, increasing in the first 25 years and then decreasing at 26–30 year stage. The maximum coefficient of determination for the spatial heterogeneity model fit was 0.84 (25 years). The spatial heterogeneity in vegetation decreased with increasing soil available K content at 1–10 years. Our results suggest that planting shrubs can improve soil conditions and plant species diversity in desert–oasis ecotones and soil nutrients have a strong influence on plant diversity patterns and spatial heterogeneity following vegetation restoration.

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Section: Introductionmentioning

confidence: 99%

Effects of vegetation restoration on soil nutrients, plant diversity, and its spatiotemporal heterogeneity in a desert–oasis ecotone

Deng

Huang

et al. 2020

Land Degrad Dev

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“…The topography of the loess hilly region is dominated by sloping land, many of which have great gradient and loose soil structure, resulting in serious soil erosion (Song et al, 2018;Yang and Lu, 2018). In addition, there is little irrigation in the loess hilly region, and most of the crop growth depends on natural precipitation (Qin et al, 2014;Gao et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Mulching measures improve soil moisture in rain-fed jujube orchard in the loess hilly region of China

Tang

Zhang

et al. 2020

Preprint

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BackgroundWater shortage is the main bottleneck restricting the healthy and sustainable development of rain-fed jujube orchards in the loess hilly region of China. Given the functions of mulching on soil moisture conservation, evaporation reduction, and water use efficiency improvement, maize straw mulching (SM) and pruned jujube branch mulching (BM) were applied to rain-fed jujube orchards in this study. Soil moisture dynamics, soil water storage, water consumption, and soil moisture attenuation after typical rainfall under SM, BM, and clean tillage (CT) were systematically studied. Results(1) The 0-60 cm soil layer was the seasonal fluctuation layer of soil moisture under SM, BM, and CT in both the normal precipitation year and the dry year. The 0-60, 60-160, and 160-280 cm soil layers under CT all obtained the lowest soil moisture content in the three experimental years. The soil moisture content of each soil layer under SM and BM was higher than that under CT, and SM showed the most obvious effect of increasing soil moisture. (2) SM and BM showed significant soil water storage effect in all the jujube growth stages in both the normal precipitation year and the dry year, and SM had a better water storage effect than BM. (3) SM and BM reduced the water consumption amount in each jujube growth stage. SM reduced water consumption amount by 94.3, 60.8, and 121.3 mm compared with CT in the whole growth period of jujube in 2014, 2015, and 2016, respectively. The water consumption amount of BM decreased by 34.8 mm and 31.0 mm respectively compared with that of CT in the whole growth period in 2014 and 2015. (4) CT had the maximum soil moisture loss rate under continuous drought after rainfall. The soil moisture loss rate of CT was above 37.3% on the eleventh day after the typical rainfall in 2014, 2015, and 2016. With the extension of drought, the soil moisture loss rate under SM increased slowly, while it increased rapidly under CT. ConclusionThis study suggests that straw mulching is the best mulching measure for rain-fed jujube orchards, and the pruned jujube branches can also be used for in-situ mulching, which can also obtain a certain moisture conservation effect.

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“…Crop residue and stubble retention are core features of conservation tillage, although the benefits of stubble retention are regionally variable, depending on both agro-climatic and socioeconomic factors [3] . Positive effects of stubble retention on agricultural sustainability include increasing SOC, soil water retention and nutrient cycling together with decreasing soil loss [3][4][5][6] . In addition to stubble retention after harvesting, conservation tillage also includes no tillage (NT) and spring ridge tillage (SRT), NT refers to nothing will be done to the field before sowing, SRT refers to ridging the field before sowing, NT and SRT are widely utilized in China [7] .…”

Section: Introduction mentioning

confidence: 99%

Growing-season soil microbial respiration response to long-term no tillage and spring ridge tillage

Wang

Zhuang

et al. 2020

International Journal of Agricultural and Biological Engineering

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No tillage (NT) and spring ridge tillage (SRT) are two common applications of conservation tillage. Although conservation tillage is known to exert major control over soil microbial respiration (SMR), the growing-season SMR response to these two applications remains elusive. In order to better understand the influence of conservation tillage practices, this experiment was conducted in an experimental field using NT and SRT for 17 years. In situ measurements of SMR, soil temperature and soil water content (SWC) were performed. Soil samples were collected to analyze soil porosity, soil microbial biomass (SMB) and soil enzymatic activities. Results show that the two conservation tillage systems had a significant difference (p<0.05) in terms of SMR; the SMR of NT was 14.7 mg•C/m 2 •h higher than that of SRT. In terms of soil temperature and soil enzymatic activities, the two treatments were not significantly different (p>0.05). Despite SRT increasing the proportion of micro-porosities and meso-porosities, the soil macro-porosities for NT were 7.37% higher than that of SRT, which resulted in higher bacteria and fungi in NT. Owing to SRT damaged the hypha, which had disadvantage in soil microbe protection. Inversely, less soil disturbance was a unique advantage in NT, which was in favor of improving soil macro-pores and SWC. Redundancy analyses (RDA) showed SMR was positively correlated with soil macro-pores, SMB and SWC. Furthermore, the Pearson correlation test indicated that SMB and soil enzymatic activities did not have a significant correlation (p>0.05). This study results suggest that SRT is more conducive to carbon sequestration compared with NT in cropland.

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Characteristics of soil nutrients and their relationship with soil microbial properties in Artemisia sacrorum communities in the loess hilly region

Abstract: Artemisia sacrorum communities with different growth years were selected to analyse soil nutrient characteristics, the variation in soil microbial properties, and their relationships in the loess hilly region. The results showed that with an

Cited by 3 publications

References 24 publications

Effects of vegetation restoration on soil nutrients, plant diversity, and its spatiotemporal heterogeneity in a desert–oasis ecotone

Effects of vegetation restoration on soil nutrients, plant diversity, and its spatiotemporal heterogeneity in a desert–oasis ecotone

Mulching measures improve soil moisture in rain-fed jujube orchard in the loess hilly region of China

Growing-season soil microbial respiration response to long-term no tillage and spring ridge tillage

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