Effects of large-scale re-vegetation on soil desiccation in the Loess Plateau: problems and perspectives

Lei, 杨磊 Yang; Zihao, 张子豪 Zhang; Zongshan, 李宗善 Li

doi:10.5846/stxb201909041842

Cited by 4 publications

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“…G. Ma et al, 2020;Shao et al, 2016). Therefore, maintaining the healthy development of vegetation restoration and the sustainability of ecological benefits have become top priorities for the ecological restoration and reconstruction of the Loess Plateau (Chen et al, 2015;L. Yang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…However, numerous studies have shown that new challenges, such as soil dryness and artificial vegetation degradation, have emerged in the process of vegetation restoration on the Loess Plateau under the long‐term combined action of low precipitation, high plant transpiration, and severe human disturbance (Feng et al, 2016; Z. G. Ma et al, 2020; Shao et al, 2016). Therefore, maintaining the healthy development of vegetation restoration and the sustainability of ecological benefits have become top priorities for the ecological restoration and reconstruction of the Loess Plateau (Chen et al, 2015; L. Yang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…The Loess Plateau in China is a typical dryland ecosystem, with grasslands occupying more than one‐third of the total area (Lü et al, 2012; X. Zhang et al, 2016). Alfalfa ( Medicago sativa ), a high‐quality forage widely planted around the world (Ventroni et al, 2010), is one of the preferred plants for introduction in the Loess Plateau due to its drought tolerance, rapid growth, good soil and water conservation effects, and high economic value (Sun et al, 2020; L. Yang et al, 2019; Yuan et al, 2019). Wu et al (2019) found that the area of grassland increased by 5235 km 2 from 2000 to 2015 on the Loess Plateau.…”

Section: Introductionmentioning

confidence: 99%

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Management of re‐established artificial grasslands via grazing or fencing: Effects on plant and soil properties

et al. 2023

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Background Revegetation is widely used in degraded grassland restoration. However, the responses of grassland plant and soil properties to fencing (FC) and grazing (GZ) remain poorly understood, especially the vegetation–soil coupling coordination (Cd) mechanism. This study explored single and interactive responses of vegetation and soil properties under FC and GZ after revegetation. Methods A field experiment with FC and GZ treatments was conducted in Loess Plateau reconstructed grassland, with degraded grassland as the control (CK). Plant and soil properties and Cd were analyzed using the analytic hierarchy process (AHP) and principal component analysis (PCA). Results The order of soil comprehensive evaluation (SCE) was GZ > FC > CK, while that of vegetation comprehensive evaluation (VCE) was FC > GZ > CK. The Cd of CK was 0.39 (mild imbalance), while the values of FC and GZ were 0.57 and 0.54, respectively (little coordination). The VCE/SCE of FC was 1.48 (soil lag type), and the values of GZ and CK were 0.69 and 0.35, respectively (vegetation lag and vegetation loss type, respectively). Conclusions Both GZ and FC improved Cd and facilitated recovery. However, degraded grasslands should be restored via moderate grazing for sustainable ecological and economic development.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Management of re‐established artificial grasslands via grazing or fencing: Effects on plant and soil properties

et al. 2023

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“…The average annual rainfall in the Loess Plateau ranges from 300 to 500 mm, with extremely uneven temporal distribution because 55∼65% of the annual rainfall occurs during the summer season, of which most is heavy rainfall. Soil moisture is a key factor restricting vegetation growth and agricultural production (Tang et al., 2018; Yang et al., 2019). Soil moisture studies in this area have been conducted mainly to improve the ecological environment of the Loess Plateau (Hou, 2019; Jin, 2019).…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution characteristics of soil moisture in different slopes on Loess Gully Region

2022

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The spatiotemporal changes of soil moistures under different rainfall events and slope positions in the loess hilly and gully area were assessed in this study using the positioning monitoring method. According to the three positions with different distances from the top of the slope, set the three treatments of "top of the slope" (TS), "middle of the slope" (MS), and "bottom of the slope" (BS). The results demonstrated a certain degree of influence of rainfall and slope position on the vertical change of soil moisture at different soil depths in the study area. Before intense rainfall, soil moisture at different slope positions revealed a vertical distribution pattern and increased with increasing soil depth. In addition, soil moisture contents below the 60-cm depth at different sites were significantly higher than those observed above the 60-cm depth (p < .05), while soil moisture contents below the 120-cm depth were extremely significantly higher than those observed above the 120-cm depth (p < .01). On the other hand, no significant variation in soil moisture content was observed between different depths after intense rainfall events (p > .05). The above studies show that soil moisture in the loess hilly and gully area has a certain hysteresis effect. The hysteresis of soil flow allows us to effectively collect and use soil moisture, which can provide a theoretical basis for the intensive and economical use of soil moisture in this area.Abbreviations: BS, bottom of the slope; MS, middle of the slope; TDR, Time Domain Reflectometry; TS, top of the slope.

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Soil moisture driven by vegetation restoration on the Chinese Loess Plateau: a synthesis and meta-analysis

Jian,

Wei,

Wang

et al. 2024

Acta Geophys.

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Effects of large-scale re-vegetation on soil desiccation in the Loess Plateau: problems and perspectives

Cited by 4 publications

References 0 publications

Management of re‐established artificial grasslands via grazing or fencing: Effects on plant and soil properties

Management of re‐established artificial grasslands via grazing or fencing: Effects on plant and soil properties

Spatial distribution characteristics of soil moisture in different slopes on Loess Gully Region

Soil moisture driven by vegetation restoration on the Chinese Loess Plateau: a synthesis and meta-analysis

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