The role of groundwater depth in semiarid grassland restoration to increase the resilience to drought events: A lesson from Horqin Grassland, China

Deng, Wei; Chen, Minjian; Zhao, Yong; Yan, Long; Wang, Yong; Zhou, Fei

doi:10.1016/j.ecolind.2022.109122

Cited by 11 publications

(6 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Discussionsupporting

confidence: 91%

“…As a threshold in groundwater depth 4m has been found, separating groundwater‐dependent, and precipitation‐driven vegetation systems in the study area, which is in line with similar research (Deng et al, 2022). This offers guidance for safeguarding and utilizing groundwater resources, as well as regulating the groundwater ecology water levels in steppe mining areas (Deng et al, 2022; Lautenbach et al, 2011; Shen et al, 2021). This study proposes that in areas where the groundwater level is less than 4 m, groundwater is a key ecological factor affecting the regional soil‐vegetation system and should be given special attention.…”

Section: Discussionsupporting

confidence: 91%

“…The results presented a strong nonlinear response between soil properties, vegetation species, height, coverage, and the decline in groundwater level. There is evidence that the soil physicochemical properties, plant species composition, and richness of grassland decreased with increasing groundwater and were not related to groundwater when it was >4 m (Deng et al, 2022). In addition, such as the richness of plant species is not only influenced by the groundwater level but also by soil salinity and fertility, showing a nonlinear relationship with groundwater decline.…”

Section: Variations Of Groundwater Depth-soilvegetation Affected By C...mentioning

confidence: 99%

See 2 more Smart Citations

Effects of groundwater level decline on soil‐vegetation system in semiarid grassland influenced by coal mining

Feng,

Duan,

Zhou

et al. 2024

Land Degrad Dev

View full text Add to dashboard Cite

Although it is well known that groundwater significantly influences the plant communities, there have been few studies on how the soil and plant communities respond to a rapid decline of groundwater in a short time affected by coal mining. This paper focuses on the examination of changes in groundwater depth before and after coal mining and the soil‐vegetation response in a typical semi‐arid grassland coal mine area of Hulunbuir Steppe, Northeastern China. The IsoSource model, based on the dual stable isotopes of δ D and δ18O, was employed to estimate groundwater contributions to shallow soil (0–100 cm) water under different groundwater depths. The results revealed that groundwater was the dominant water source (75.7% ± 17.1%) for shallow soil water when the groundwater depth is less than 4 m, indicating that 4 m is a threshold in groundwater depth, separating groundwater‐dependent, and precipitation‐driven vegetation system in the study area. Secondly, a strong nonlinear response was observed between vegetation species, height, coverage, and the decline in groundwater. The vegetation properties were found to be the lowest in the areas where groundwater depth increased from 1.5–4 m to 4–28 m before and after coal mining. Finally, the groundwater level decline in the mining area significantly influenced the groundwater‐dependent vegetation ecosystem, the soil cation exchange capacity and organic matter reduced lead to the degradation of plant communities and the transition of mesophytes to xerophytes. Besides, the soil‐vegetation system in the non‐groundwater‐dependent area has no obvious response to the groundwater decline. These results suggest that caution should be exercised when mining in groundwater‐dependent ecosystem regions.

show abstract

Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 91%

Section: Variations Of Groundwater Depth-soilvegetation Affected By C...mentioning

confidence: 99%

See 1 more Smart Citation

Effects of groundwater level decline on soil‐vegetation system in semiarid grassland influenced by coal mining

Feng,

Duan,

Zhou

et al. 2024

Land Degrad Dev

View full text Add to dashboard Cite

show abstract

“…The NDVI values in Buffer2-Buffer5 did not increase significantly with time, while Buffer6-Buffer10 increased significantly, which may be related to the change in groundwater level. The excessive extraction of groundwater would cause land subsidence [50,51], which would affect the surrounding vegetation [52], and this effect would weaken as it was farther away from CPI farmland units. The phenomenon that the NDVI change trend in Buffer2-Buffer10 gradually increased also seemed to confirm this point.…”

Section: Impact Of Cpi Farmland Unit Construction On Surrounding Vege...mentioning

confidence: 99%

Spatiotemporal Changes of Center Pivot Irrigation Farmland in the Mu Us Region and Its Impact on the Surrounding Vegetation Growth

Song,

Du,

et al. 2024

Remote Sensing

View full text Add to dashboard Cite

Accurately understanding the distribution and changing trends of Center Pivot Irrigation (CPI) farmland in the Mu Us region and exploring the impact of CPI farmland construction on sandy land vegetation growth hold significant importance for local sustainable development. By using Landsat images to extract CPI farmland information and applying buffer zone analysis to explore the impact of CPI farmland construction on the surrounding vegetation growth, the results revealed the following key findings: (1) The number and area of CPI farmland units showed a continuous growth trend from 2008 to 2022. Spatially, Etoke Front Banner was the focal point of the CPI farmland unit construction, gradually expanding outward. In terms of scale, small-scale CPI farmland units (0–0.2 km2) dominated, while large-scale CPI farmland units (>0.4 km2) were primarily distributed in Yulin City (Mu Us). (2) The growth rate of CPI farmland units in Yulin City gradually slowed down, while that in Ordos City (Mu Us) continued to exhibit a high growth trend. Affected by water-resource pressure and policies, CPI farmland units in Ordos City may continue to increase in the future, while they may stop growing or even show a downward trend in Yulin City. (3) CPI farmland mainly came from the conversion of cultivated land, but over time, more and more grassland was reclaimed as CPI farmland. The absence of cover planting after crop harvesting and the lack of shelterbelt construction may exacerbate land desertification in the region. (4) Within the typical region, CPI farmland unit construction promoted vegetation growth within the CPI units and the 500 m buffer zone but had an inhibitory effect on vegetation growth within the 500–3000 m buffer zone and no significant effect on vegetation growth within the 3000–5000 m buffer zone. (5) The decrease in groundwater reserves caused by CPI farmland unit construction was the primary reason for inhibiting the vegetation growth within the 500–3000 m buffer zone of CPI farmland units in the Mu Us region. This study can provide a scientific basis for the sustainable development of CPI farmland in semi-arid areas.

show abstract

“…At the same time, the NDVI can be pre-processed to eliminate most of the data errors caused by the instrument calibration, solar angle, topography, cloud shading, and atmospheric conditions, thus enhancing its responsiveness to changes in vegetation cover. Many studies [32][33][34][35] have been conducted to analyze the linkage between vegetation growth and groundwater level dynamics based on the NDVI, providing support for determining the appropriate ecological groundwater depth [36,37]; however, comprehensive analyses of the coupled well-canal combined irrigation ratio, the vegetation growth index, and the groundwater depth are not common.…”

Section: Introductionmentioning

confidence: 99%

Study on the Suitable Ecological Groundwater Depth and the Suitable Well–Canal Combined Irrigation Ratio in the Weigan River Irrigation District

Zhang,

Deng,

Xiao

et al. 2023

Sustainability

View full text Add to dashboard Cite

It is important to clarify the suitable ratio of well–canal combined irrigation and the suitable range for ecological groundwater depth for the ecological stability of the arid zone. The MODFLOW model was used to reconstruct long-term groundwater depth by analyzing the response relationship between vegetation cover and groundwater depth in the Weigan River irrigation district. The suitable range for ecological groundwater depth was obtained, and based on this range, the suitable well–canal combined irrigation ratio in the research area was further simulated. The results show the following: (1) The average annual depth of groundwater in 82.9% of the study area increased from 2012 to 2021, and the average annual depth of groundwater increased by 1.03 m in 2021 compared to 2012. The average depth of the groundwater in the upstream area increased the most, with an increase of 1.96 m. (2) The vegetation cover in the study area from 2012 to 2021 increased in general, with an increase of 0.0461 over the 10-year period, but it fluctuated between years. (3) The depth of the groundwater in the study area suitable for the growth of vegetation in the irrigation area ranged from 3 to 5 m, and the value of NDVI within this range concentrated near 0.564–0.731, which represents a good state of vegetation growth. (4) The ratio of combined well and canal irrigation in the study area from 2012 to 2014 surged from 0.13 in 2012 to 0.48 in 2014, and the irrational harvesting and replenishment relationship led to a rapid increase in the depth of buried groundwater. A suitable well–canal combined irrigation ratio of 0.396 in the study area was obtained. This study is beneficial for maintaining the sustainable development and utilization of water resources and ecological stability in the Weigan River irrigation district.

show abstract

The role of groundwater depth in semiarid grassland restoration to increase the resilience to drought events: A lesson from Horqin Grassland, China

Cited by 11 publications

References 47 publications

Effects of groundwater level decline on soil‐vegetation system in semiarid grassland influenced by coal mining

Effects of groundwater level decline on soil‐vegetation system in semiarid grassland influenced by coal mining

Spatiotemporal Changes of Center Pivot Irrigation Farmland in the Mu Us Region and Its Impact on the Surrounding Vegetation Growth

Study on the Suitable Ecological Groundwater Depth and the Suitable Well–Canal Combined Irrigation Ratio in the Weigan River Irrigation District

Contact Info

Product

Resources

About