scholarly journals Native woodland establishment improves soil hydrological functioning in UK upland pastoral catchments

2020 ◽  
Author(s):  
Thomas R. Murphy ◽  
Mick E. Hanley ◽  
Jon S. Ellis ◽  
Paul H. Lunt
Keyword(s):  
Native Woodland ◽  
Hydrological Functioning

scholarly journals INFLUENCE OF TIME MANAGEMENT IN MODELING OF CURVE RESISTANCE TO THE PENETRATION OF A LATOSOL UNDER DIFFERENT USES AND MANAGEMENT OF PASTURES AND NATIVE WOODLAND

2016 ◽  
Vol 40 (3) ◽  
pp. 519-527 ◽  
Author(s):  
Kathleen Lourenço Fernandes ◽  
Adriana Aparecida Ribon ◽  
João Tavares Filho ◽  
Gustavo Dias Custódio ◽  
Leonardo Rodrigues Barros
Keyword(s):  
Regression Analysis ◽  
Time Management ◽  
Soil Compaction ◽  
Total Porosity ◽  
Soil Resistance ◽  
Independent Variables ◽  
Grazing System ◽  
Native Woodland ◽  
Stepwise Procedure ◽  
Resistance To Penetration

ABSTRACT The soil resistance to penetration study helps in understanding the state of soil compaction, indicating how best to manage it. The present study aimed to verify the influence of time management in modeling curves of resistance to penetration in Oxisol under different uses and management of pastures and woodland in field conditions, using the stepwise procedure. The study was conducted in the Cerrado region. Five (5) systems of uses and management of pastures and native woodland were evaluated: ILPF: crop-livestock-forest integration; ILP: crop-livestock integration; P: Area in the extensive grazing system; MN: native woodland; PIQ: rotated picket. The experiments were assessed for the years 2012/13 and 2013/14. To obtain the models, an analysis with four independent variables was performed: Gravimetric moisture (X1), bulk density (X2), total porosity (X3) and organic matter (X4) and the dependent variable, soil resistance to penetration (Y). The multiple regression analysis by STEPWISE with F of 0.15 was used. The equation that best estimated the resistance to penetration was RP = 14.68 to 0.26 for Native Woodland in layers from 0.20 - 0.40 m with R2 indices of 0.97 in year 1. For year 2, the equation that estimated the resistance to penetration was obtained in the PIQ treatment, PR = - 15.94 - 0.29 PT + 15.87 DS + 0.05 MO. with R2 of 0.94.

scholarly journals Estimating evaporation from a wet grassland

2007 ◽  
Vol 11 (1) ◽  
pp. 270-282 ◽  
Author(s):  
D. L. Gasca-Tucker ◽  
M. C. Acreman ◽  
C. T. Agnew ◽  
J. R. Thompson
Keyword(s):  
Water Availability ◽  
Meteorological Data ◽  
Correlation Method ◽  
Eddy Correlation ◽  
Direct Measurements ◽  
Wet Grassland ◽  
Wet Grasslands ◽  
The Uk ◽  
Crop Coefficients ◽  
Hydrological Functioning

Abstract. Wet grasslands are being restored across the UK and Europe to reinstate their high biodiversity following over 50 years of drainage and conversion to arable agriculture. The water balance of many wet grasslands is dominated by precipitation and evaporation and it is essential to quantify evaporation rates to understand the hydrological functioning of wetlands and the implications for water resources in catchments where wetlands are being restored. This paper considers data from direct measurements of evaporation from the Pevensey Levels wet grassland using the eddy correlation method. Equations are derived to predict actual evaporation using meteorological data on the site or from standard meteorological station observations. It was found that evaporation could be estimated reliably from meteorological variables, such as wind speed, temperature and humidity and by water availability. It was also found that when water availability is high, evaporation is high and may exceed reference evaporation values, raising questions over the deployment of the two-step Penman-Monteith model unless reliable crop coefficients and relative evaporation figures can be determined.

Realizing the Ecosystem-Service Value of Native Woodland in Ireland

Urban Ecology ◽  
2015 ◽  
pp. 75-98
Author(s):  
Craig Bullock ◽  
Jerry Hawe ◽  
Declan Little
Keyword(s):  
Ecosystem Service ◽  
Ecosystem Service Value ◽  
Service Value ◽  
Native Woodland

scholarly journals Hydrological functioning of cattle ranching impoundments in the Dry Chaco rangelands of Argentina

2019 ◽  
Vol 50 (6) ◽  
pp. 1596-1608 ◽  
Author(s):  
Patricio N. Magliano ◽  
David Mindham ◽  
Wlodek Tych ◽  
Francisco Murray ◽  
Marcelo D. Nosetto ◽  
...  
Keyword(s):  
Overland Flow ◽  
Rainwater Harvesting ◽  
Open Water ◽  
Water Evaporation ◽  
Cattle Ranching ◽  
Systems Modelling ◽  
Controlling Variables ◽  
Infiltration Excess ◽  
And Control ◽  
Hydrological Functioning

Abstract Rainwater harvesting and associated storage is essential for cattle ranching in the drylands of Argentina and elsewhere. This is the first study to attempt to quantify the hydrological inflows and losses from rainwater harvesting impoundments. To address the direct effect of cattle within impoundments, a typical cattle-affected impoundment was instrumented and compared with that of a similar impoundment but without cattle access. Analysis of the storage dynamics with reference to the controlling variables demonstrated the highly episodic nature of the generation of infiltration-excess overland flow that recharged the impoundments. The impoundments experienced 43 and 35% of storage loss to open-water-evaporation for the cattle-affected and control impoundments, respectively. Critically, the cattle-effected impoundment lost only 15% of storage to leakage (after cattle consumption was taken into account), while the control lost 65% of its water to basal leakage. Indeed systems modelling of the rainfall-storage dynamics showed that the cattle-affected impoundment, despite consumption by 300 cows, maintained water in the impoundment (per a unit input of rainfall) for longer than the control (a 65- versus 25-day residence time). These results highlight the unintended beneficial effect of cattle trampling on the floor of the impoundment reducing leakage losses.

scholarly journals Hydrological Characterization of Watering Ponds in Rangeland Farms in the Southwest Iberian Peninsula

Water ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 1038 ◽  
Author(s):  
Ubaldo Marín-Comitre ◽  
Susanne Schnabel ◽  
Manuel Pulido-Fernández
Keyword(s):  
Water Supply ◽  
Water Availability ◽  
Catchment Area ◽  
Storage Capacity ◽  
Rainfall Variability ◽  
Summer Period ◽  
Arid Rangelands ◽  
The One ◽  
Hydrological Functioning

Watering ponds are an important source of drinking water supply for livestock in semi-arid rangelands. Understanding the hydrological functioning of this kind of infrastructures is crucial for efficient water management in areas where water resources are often scarce. In this line, we have analyzed temporal patterns of water availability in a set of watering ponds located in Iberian rangelands and their relationship with temporal rainfall variability. In addition, the effectiveness of the ponds for conserving stored water during dry periods and some influencing factors (pond size and catchment area) have also been assessed. The results showed a high correlation between water availability and precedent rainfall, confirming, on the one hand, the capacity of storage of these infrastructures and, on the other hand, the importance of temporal rainfall patterns in their hydrological behavior. Our findings point to a minimum pond area of 2000 m2 and a catchment area/storage capacity ratio around 100 m−1 in order for watering ponds can face the dry summer period with certain guarantees, at least in regular hydrological years. Nonetheless, the vulnerability shown by the majority of the watering ponds in times of drought limits their usefulness as unique sources of water supply in many farms.

scholarly journals Application of time-series analyses to the hydrological functioning of an Alpine karstic system: the case of Bange-L’Eau-Morte

2004 ◽  
Vol 8 (6) ◽  
pp. 1051-1064 ◽  
Author(s):  
T. Mathevet ◽  
M. l. Lepiller ◽  
A. Mangin
Keyword(s):  
Time Series ◽  
Spectral Analysis ◽  
Wavelet Analysis ◽  
Noise Analysis ◽  
Recession Curves ◽  
Time Series Analyses ◽  
Correlation And Spectral Analysis ◽  
Wavelet Analyses ◽  
Dependent Behaviour ◽  
Hydrological Functioning

Abstract. This paper analyses the hydrological functioning of the Bange-L’Eau-Morte karstic system using classical and original techniques, recession curves, correlation and spectral analyses, noise analysis and wavelet analyses. The main characteristics that can be deduced are the recession coefficients, the dynamic volume of storage, the response time of the system, the quickflow and baseflow components and the snowmelt characteristics. The non-stationary and timescale-dependent behaviour of the system is studied and particular features of the runoff are shown. The step-by-step use of these different techniques provides a general methodology applicable to different karstic systems to provide quantifiable and objective criteria for differentiation and comparison of karstic systems. Keywords: karstic hydrology, Bauges mountains, recession curves, correlation and spectral analysis, wavelet analysis, snowmelt

Hydrological functioning of a beaver dam sequence and regional dam persistence during an extreme rainstorm

2020 ◽  
Vol 34 (18) ◽  
pp. 3726-3737 ◽  
Author(s):  
Cherie J. Westbrook ◽  
Amanda Ronnquist ◽  
Angela Bedard‐Haughn
Keyword(s):  
Beaver Dam ◽  
Hydrological Functioning
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