Progress in understanding the hydrology of high-elevation Andean grasslands under changing land use

Mosquera, Giovanny M.; Marín, Franklin; Stern, Margaret; Bonnesoeur, Vivien; Ochoa‐Tocachi, B. F.; Román-Dañobeytia, Francisco; Crespo, Patricio

doi:10.1016/j.scitotenv.2021.150112

Cited by 18 publications

(17 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The soil hydrology' simulations show that surface runoff is not occurring, similar to what is observed in other regions characterized by high infiltration and low rainfall rates (Blume et al, 2009;Mosquera et al, 2022;Tobón and Bruijnzeel, 2021). Interception is considered negligible for cushion plants since their leaves are placed directly on the ground (Fig.…”

Section: Soil Water Dynamics Under Cushion-forming Plants and Tussock...supporting

confidence: 68%

“…Soils are characterized by high porosity, high organic matter content, low bulk density as well as high hydraulic conductivity. Subsurface water flow is dominant (Correa et al, 2017;Mosquera et al, 2022), and overland rainfall runoff is only reported in anthropogenically degraded páramo soils (Harden, 2006). Chemical weathering has been reported to exceed physical erosion in páramo catchments (Tenorio et al, 2018), similar to what was observed in other alpine environments (Dixon & Thorn, 2005).…”

Section: Páramo Ecosystemmentioning

confidence: 70%

“…We attribute this difference to the weak soil moisture seasonality in our study sites (Fig. 4), typical in tropical páramo ecosystems (Mosquera et al, 2022), which results in small ranges (max-min) of soil moisture for cushion plants (≤ 0.09 cm 3 cm -3 ) and tussock grasses (≤ 0.07 cm 3 cm -3 ) in comparison with larger soil moisture ranges from the modeled soil profiles (0.35 cm 3 cm -3 ) (Cipolla et al, 2021;García-Gamero et al, 2022).…”

Section: The Effect Of Vegetation On Contemporary Soil Weathering Thr...mentioning

confidence: 88%

See 2 more Smart Citations

Soil-vegetation-water interactions controlling solute flow and transport in volcanic ash soils of the high Andes

Páez‐Bimos

Molina

Calispa

et al. 2022

Preprint

View full text Add to dashboard Cite

Abstract. Vegetation plays a key role in the hydrological and biogeochemical cycles. It can influence soil water fluxes and transport which are critical for chemical weathering and soil development. In this study, we investigated soil water balance and solute fluxes in two soil profiles with different vegetation types (cushion-forming plants vs. tussock grasses) by measuring soil water content, flux, and solute concentrations and by modeling soil hydrology. We also analyzed the role of soil water balance in soil chemical weathering. The influence of vegetation on soil water balance and solute fluxes is restricted to the A horizon. Evapotranspiration is 1.7 times higher and deep drainage is 3 times lower under cushion-forming plants than under tussock grass. Likewise, cushions transmit almost threefold less water from the A to lower horizons. This is attributed to the vertical distribution of soil properties associated with the root systems. Under cushion-forming plants, DOC and metals (Al, Fe) are mobilized in the A horizon. Solute fluxes that can be related to plant nutrient uptake (Mg, Ca, K) decline with depth as expected from bio-cycling of plant nutrients. Dissolved silica and bicarbonate are minimally influenced by vegetation and represent the largest contributions of solute fluxes. Soil chemical weathering is higher and constant with depth below tussock grasses; while lower and declining with depth under cushion-forming plants. This difference in soil weathering is attributed mainly to the water fluxes. Our findings reveal that vegetation can modify soil properties in the uppermost horizon altering the water balance, solute fluxes, and chemical weathering throughout the soil profile.

show abstract

Section: Soil Water Dynamics Under Cushion-forming Plants and Tussock...supporting

confidence: 68%

Section: Páramo Ecosystemmentioning

confidence: 70%

Section: The Effect Of Vegetation On Contemporary Soil Weathering Thr...mentioning

confidence: 88%

See 1 more Smart Citation

Soil-vegetation-water interactions controlling solute flow and transport in volcanic ash soils of the high Andes

Páez‐Bimos

Molina

Calispa

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Results of the inter�retation of the land co�er in� dicate that in the Ri�er Teatinos �asin, an ex�ansion of the agricultural frontier is not o�ser�ed, which could commit more than the current a�aila�ility of the water su��ly in the Ri�er Teatinos �asin, a �ro� cess that is o�ser�ed in most of the ecosystems of the ��ramo (Mosquera et al, 2022). A decreasing �o�ulation dynamic is o�ser�ed in the study area as� sociated with the dis�acement of the young genera� tion to ur�an areas, lea�ing agricultural acti�ity to �re�ious generations (Feola et al, 2020).…”

Section: Discussionmentioning

confidence: 95%

Impact of changes in average temperature and land cover on components of the water balance in the Teatinos River basin, Páramo Rabanal, Colombia

Ivanova¹

2022

Nat. Conserv. Res.

View full text Add to dashboard Cite

In the national context, there are studies that confirm that the change in the average temperature in the Colombian páramos motivates the expansion of the agricultural frontier and expansive livestock farming and violates the ecosystem services of the hydrographic basins. Therefore, in the present study the effect of climate change on the change in land cover and various components of the water balance of the River Teatinos basin of the Rabanal páramo was evaluated, which is important from the point of view of biodiversity and water supply for the city of Tunja. This evaluation was carried out with the construction of the distributed water balance where the real evapotranspiration was identified depending on the vegetation cover that were characterised through remote sensing tools. The climatic analysis indicates that the increase in temperature explains 62% of the increase in evapotranspiration and the registered increase in rainfall explains 47.2% of the advance in forest cover. The advance of the forest cover (open and gallery forest) generates the contraction of the páramo grass cover. The 75%-reduction in the area of páramo coverage is explained by the expansion of the forest. It was obtained that the crop cover did not have a significant change. In relation to the impact on water availability, no significant change is observed because the increase in precipitation is offset by an increase in evapotranspiration, indicating possible mechanisms of resilience of the hydrographic basin to the phenomenon of global climate change.

show abstract

“…Each phytocenosis, with its own characteristics, can be influenced by humans and, therefore, new types of grasslands appear [ 2 ]. Organized experiments, both nationally and internationally, have shown that the intensification of grassland systems greatly reduces the specific richness, installing valuable forage species (generally nitrophilic species), which offer rich biomass crops and high-quality fodder [ 13 , 17 , 24 , 25 , 26 ]. The formation of specific groups as a result of the application of inputs demonstrates that fertilizer treatments have produced major changes in the phytocenosis of grasslands [ 27 ].…”

Section: Discussionmentioning

confidence: 99%

Responses of Diversity and Productivity to Organo-Mineral Fertilizer Inputs in a High-Natural-Value Grassland, Transylvanian Plain, Romania

Gaga

Păcurar

Vaida

et al. 2022

Plants

View full text Add to dashboard Cite

Ecosystems with high natural value (HNV) have generally been maintained by agricultural practices and are increasingly important for the ecosystem services that they provide and for their socio-economic impact in the ever-changing context. Biodiversity conservation is one of the main objectives of the European Green Deal, which aims to address biodiversity loss, including the potential extinction of one million species. The aim of this research was to trace the effects of organic and mineral fertilizers on the floristic composition, but also on the number of species, of the grasslands with high biodiversity (HNV) from the Transylvanian Plain, Romania. The experiments were established in 2018 on the nemoral area and analyzed the effect of a gradient of five organic and mineral treatments. Fertilization with 10 t ha−1 manure or N50 P25K25 ensures an increase in yield and has a small influence on diversity, and it could be a potential strategy for the maintenance and sustainable use of HNV grasslands. Each fertilization treatment determined species with indicator value that are very useful in the identification and management of HNV grasslands. The dry matter biomass increases proportionally as the amounts of fertilizer applied increase and the number of species decreases.

show abstract

Progress in understanding the hydrology of high-elevation Andean grasslands under changing land use

Cited by 18 publications

References 80 publications

Soil-vegetation-water interactions controlling solute flow and transport in volcanic ash soils of the high Andes

Soil-vegetation-water interactions controlling solute flow and transport in volcanic ash soils of the high Andes

Impact of changes in average temperature and land cover on components of the water balance in the Teatinos River basin, Páramo Rabanal, Colombia

Responses of Diversity and Productivity to Organo-Mineral Fertilizer Inputs in a High-Natural-Value Grassland, Transylvanian Plain, Romania

Contact Info

Product

Resources

About