Long-term effects of extensive grazing on pasture productivity
Natascha A. Grinnell
A * , Martin Komainda A , Bettina Tonn B , Dina Hamidi A and Johannes Isselstein A C
+ Author Affiliations
- Author Affiliations
A University of Göttingen, Department of Crop Sciences, Grassland Science, Von-Siebold-Str. 8, Göttingen D-37075, Germany.
B Forschungsinstitut für biologischen Landbau (FIBL), Frick, Switzerland.
C Centre for Biodiversity and Sustainable Land Use, Büsgenweg 1, D-37077 Göttingen, Germany.
Animal Production Science 63(12) 1236-1247 https://doi.org/10.1071/AN22316
Submitted: 19 August 2022 Accepted: 26 March 2023 Published: 8 May 2023
© 2023 The Author(s) (or their employer(s)). Published by CSIRO Publishing
Abstract
Context: In grazed grassland, the per area output of animal-source products usually declines with decreasing stocking rates because of lower herbage utilisation efficiency. Consequently, nutrient export is larger with increased stocking intensity, which should decrease the productivity in the long term. However, little information is available on long-term productivity of extensive grasslands under varied stocking intensities receiving no input.
Aims: The effect of stocking intensity was investigated in a long-term grazing trial over 16 years of production. We hypothesised that, despite minimal nutrient export under grazing, no reduction in productivity occurs over long-term periods, but expected an interaction between stocking intensity and year.
Method: The net pasture productivity was determined in terms of animal performance assessed from Fleckvieh cows grazing in a randomised block design with three replicates in three different stocking intensities (moderate, lenient, and very lenient, corresponding to stocking rates of 1.1, 0.7, and 0.5 livestock unit/ha.year respectively), recorded from 2005 to 2020. Metabolisable energy in GJ/ha.year (MEtotal) provided by the pasture and the livestock unit grazing days/ha.year (LUGD, 1LU = 500 kg) were calculated on the basis of liveweight measurements.
Key results: The interaction of year and treatment significantly affected LUGD (F = 16.85, d.f. = 30, P < 0.0001) and MEtotal (F = 12.81, d.f. = 30, P < 0.0001) and indicated a cyclic trajectory with increases and decreases in performance over the study years. Overall, the moderate stocking intensity led to and maintained significantly higher performance than did very lenient grazing of up to 60% and 55% in LUGD and MEtotal respectively. However, structural equation modelling indicated a negative temporal trend irrespective of stocking intensity.
Conclusions: On the basis of existing data of herbage quality and botanical composition from the same experiment, this trend was likely to be a result of nutrient redistribution within pastures that probably changed the botanical composition and grass sward productivity in conjunction with drier years towards the end of this study period.
Implications: This study showed that productivity in low-input grassland under continuous grazing declines over time irrespective of stocking intensity. Productivity decline in all treatments implies tradeoffs for farmers grazing at lower stocking intensities.
Keywords: extensive grassland management, herbivore, long-term extensive grazing, pasture productivity, ruminant, semi-natural grassland, sustainable extensification, temperate grassland.
References
Adler P, Raff D, Lauenroth W (2001) The effect of grazing on the spatial heterogeneity of vegetation. Oecologia 128, 465–479.| The effect of grazing on the spatial heterogeneity of vegetation.Crossref | GoogleScholarGoogle Scholar |
Akaike H (1974) A new look at the statistical model identification. IEEE Transactions on Automatic Control 19, 716–723.
| A new look at the statistical model identification.Crossref | GoogleScholarGoogle Scholar |
Baker RD (2004) Estimating herbage intake from animal performance. In ‘Herbage intake handbook’. (Ed. PD Penning) pp. 95–120. (British Grassland Society)
Breitsameter L, Kayser M, Strodthoff J, Müller J, Isselstein J (2017) Performance of extensive cattle stocking on a reclaimed minerotrophic wet grassland. Mires and Peat 19, 1–10.
| Performance of extensive cattle stocking on a reclaimed minerotrophic wet grassland.Crossref | GoogleScholarGoogle Scholar |
Buras A, Rammig A, Zang CS (2020) Quantifying impacts of the drought 2018 on European ecosystems in comparison to 2003. Biogeosciences 17, 1655–1672.
| Quantifying impacts of the drought 2018 on European ecosystems in comparison to 2003.Crossref | GoogleScholarGoogle Scholar |
BZL (2021) Bundesinformationszentrum Landwirtschaft, Rinderrassen vorgestellt: Zweinutzungsrassen. Available at https://www.praxis-agrar.de/tier/rinder/rinderrassen-vorgestellt/zweinutzungsrassen/ [Verified 4 August 2022]
Castle ME (1976) A simple disc instrument for estimating herbage yield – research note. Grass and Forage Science 31, 37–40.
| A simple disc instrument for estimating herbage yield – research note.Crossref | GoogleScholarGoogle Scholar |
Derner JD, Hart RH, Smith MA, Waggoner JW (2008) Long-term cattle gain responses to stocking rate and grazing systems in northern mixed-grass prairie. Livestock Science 117, 60–69.
| Long-term cattle gain responses to stocking rate and grazing systems in northern mixed-grass prairie.Crossref | GoogleScholarGoogle Scholar |
DLG (2013) ‘Leitfaden zur Berechnung des Energiegehaltes bei Einzel- und Mischfuttermitteln für die Schweine- und Rinderfütterung.’ (German Agricultural Society: Germany)
Dumont B, Garel JP, Ginane C, Decuq F, Farruggia A, Pradel P, Rigolot C, Petit M (2007a) Effect of cattle grazing a species-rich mountain pasture under different stocking rates on the dynamics of diet selection and sward structure. Animal 1, 1042–1052.
| Effect of cattle grazing a species-rich mountain pasture under different stocking rates on the dynamics of diet selection and sward structure.Crossref | GoogleScholarGoogle Scholar |
Dumont B, Rook AJ, Coran C, Röver K-U (2007b) Effects of livestock breed and grazing intensity on biodiversity and production in grazing systems. 2. Diet selection. Grass and Forage Science 62, 159–171.
| Effects of livestock breed and grazing intensity on biodiversity and production in grazing systems. 2. Diet selection.Crossref | GoogleScholarGoogle Scholar |
Dumont B, Rossignol N, Loucougaray G, Carrère P, Chadoeuf J, Fleurance G, Bonis A, Farruggia A, Gaucherand S, Ginane C, Louault F, Marion B, Mesléard F, Yavercovski N (2012) When does grazing generate stable vegetation patterns in temperate pastures? Agriculture, Ecosystems & Environment 153, 50–56.
| When does grazing generate stable vegetation patterns in temperate pastures?Crossref | GoogleScholarGoogle Scholar |
Ebeling D, Tonn B, Isselstein J (2015) Wieviel Futteraufwuchs ‘geht am Rindermaul vorbei’? Brutto- und Nettoweideleistung einer extensiven Rinderstandweide unter verschiedenen Beweidungsintensitäten. In ‘59. Jahrestagung Der AGGF in Aulendorf (2015), Tagungsband, 52–57’. Landwirtschaftliches Zentrum Baden-Württemberg für Rinderhaltung, Grünlandwirtschaft, Milchwirtschaft, Wild und Fischerei (LAZBW). Available at https://www.grassland-organicfarming.uni-kiel.de/de/pdf/aggf_2015_alle.pdf
Ebeling D, Tonn B, Isselstein J (2020) Primary productivity in patches of heterogeneous swards after 12 years of low-intensity cattle grazing. Grass and Forage Science 75, 398–408.
| Primary productivity in patches of heterogeneous swards after 12 years of low-intensity cattle grazing.Crossref | GoogleScholarGoogle Scholar |
Farruggia A, Dumont B, D’hour P, Egal D, Petit M (2006) Diet selection of dry and lactating beef cows grazing extensive pastures in late autumn. Grass and Forage Science 61, 347–353.
| Diet selection of dry and lactating beef cows grazing extensive pastures in late autumn.Crossref | GoogleScholarGoogle Scholar |
Grime JP (1979) ‘Plant strategies and vegetation processes.’ (Wiley: New York, NY, USA)
Hamidi D, Komainda M, Tonn B, Harbers J, Grinnell NA, Isselstein J (2021) The effect of grazing intensity and sward heterogeneity on the movement behavior of suckler cows on semi-natural grassland. Frontiers in Veterinary Sciences 8, 639096
| The effect of grazing intensity and sward heterogeneity on the movement behavior of suckler cows on semi-natural grassland.Crossref | GoogleScholarGoogle Scholar |
Hartge KH, Horn R (2009) ‘Die physikalische Untersuchung von Böden.’ (Spektrum Akademischer Verlag)
Hejcman M, Strnad L, Hejcmanová P, Pavlů V (2012) Response of plant species composition, biomass production and biomass chemical properties to high N, P and K application rates in Dactylis glomerata- and Festuca arundinacea-dominated grassland. Grass and Forage Science 67, 488–506.
| Response of plant species composition, biomass production and biomass chemical properties to high N, P and K application rates in Dactylis glomerata- and Festuca arundinacea-dominated grassland.Crossref | GoogleScholarGoogle Scholar |
Hejcmanová P, Stejskalová M, Pavlů V, Hejcman M (2009) Behavioural patterns of heifers under intensive and extensive continuous grazing on species-rich pasture in the Czech Republic. Applied Animal Behaviour Science 117, 137–143.
| Behavioural patterns of heifers under intensive and extensive continuous grazing on species-rich pasture in the Czech Republic.Crossref | GoogleScholarGoogle Scholar |
Hempson GP, Archibald S, Bond WJ, Ellis RP, Grant CC, Kruger FJ, Kruger LM, Moxley C, Owen-Smith N, Peel MJS, Smit IPJ, Vickers KJ (2015) Ecology of grazing lawns in Africa. Biological Reviews 90, 979–994.
| Ecology of grazing lawns in Africa.Crossref | GoogleScholarGoogle Scholar |
Hessle A, Wissman J, Bertilsson J, Burstedt E (2008) Effect of breed of cattle and season on diet selection and defoliation of competitive plant species in semi-natural grasslands. Grass and Forage Science 63, 86–93.
| Effect of breed of cattle and season on diet selection and defoliation of competitive plant species in semi-natural grasslands.Crossref | GoogleScholarGoogle Scholar |
Hodgson J (1990) ‘Grazing management: science into practice.’ (Longman Group UK: Harlow, UK)
Hopkins A, Holz B (2006) Grassland for agriculture and nature conservation: production, quality and multi-functionality. Agronomy Research 4, 3–20.
Isselstein J, Griffith BA, Pradel P, Venerus S (2007) Effects of livestock breed and grazing intensity on biodiversity and production in grazing systems. 1. Nutritive value of herbage and livestock performance. Grass and Forage Science 62, 145–158.
| Effects of livestock breed and grazing intensity on biodiversity and production in grazing systems. 1. Nutritive value of herbage and livestock performance.Crossref | GoogleScholarGoogle Scholar |
IUSS Working Group WRB (2007) World reference base for soil resources 2006: a framework for international classification, correlation and communication. World soil resources reports no. 103. FAO.
Jerrentrup JS, Wrage-Mönnig N, Röver K-U, Isselstein J (2014) Grazing intensity affects insect diversity via sward structure and heterogeneity in a long-term experiment. Journal of Applied Ecology 51, 968–977.
| Grazing intensity affects insect diversity via sward structure and heterogeneity in a long-term experiment.Crossref | GoogleScholarGoogle Scholar |
Jerrentrup JS, Komainda M, Seither M, Cuchillo-Hilario M, Wrage-Mönnig N, Isselstein J (2020) Diverse swards and mixed-grazing of cattle and sheep for improved productivity. Frontiers in Sustainable Food Systems 3, 125
| Diverse swards and mixed-grazing of cattle and sheep for improved productivity.Crossref | GoogleScholarGoogle Scholar |
Karsten W (2013) Untersuchung der Konditionsentwicklung weiblicher Kälber der Rasse Deutsche Holsteins von der Geburt bis zum Ende des 1. Lebensjahres unter Berücksichtigung der Fütterung. BSc thesis, Hochschule Neubrandenburg University of Applied Sciences, Germany.
Klimek S, Richter gen. Kemmermann A, Hofmann M, Isselstein J (2007) Plant species richness and composition in managed grasslands: the relative importance of field management and environmental factors. Biological Conservation 134, 559–570.
| Plant species richness and composition in managed grasslands: the relative importance of field management and environmental factors.Crossref | GoogleScholarGoogle Scholar |
Kowalski K, Okujeni A, Brell M, Hostert P (2022) Quantifying drought effects in Central European grasslands through regression-based unmixing of intra-annual Sentinel-2 time series. Remote Sensing of Environment 268, 112781
| Quantifying drought effects in Central European grasslands through regression-based unmixing of intra-annual Sentinel-2 time series.Crossref | GoogleScholarGoogle Scholar |
Lajtha K, Silva L (2022) Grazing cattle, well-managed or not, is unlikely to increase soil carbon sequestration. Proceedings of the National Academy of Sciences 119, e2203408119
| Grazing cattle, well-managed or not, is unlikely to increase soil carbon sequestration.Crossref | GoogleScholarGoogle Scholar |
Lefcheck JS (2015) pieciewiseSEM: piecewise structural equation modelling in r for ecology, evolution, and systematics. Methods in Ecology and Evolution 7, 573–579.
| pieciewiseSEM: piecewise structural equation modelling in r for ecology, evolution, and systematics.Crossref | GoogleScholarGoogle Scholar |
Lenth RV (2020) emmeans: estimated marginal means, aka least-squares means. R package version 1.5.3. Available at https://CRAN.R-project.org/package=emmeans [Verified 4 August 2022]
Lindborg R, Bernués A, Hartel T, Helm A, Ripoll-Bosch R (2022) Ecosystem services provided by semi-natural and improved grasslands – synergies, trade-offs and bundles. In ‘Proceedings of the 29th EGF general meeting on grassland at the heart of circular and sustainable food systems, Grassland Science in Europe. Vol. 27’. (Eds L Delaby, R Baumont, V Brocard, S Lemauviel-Lavenant, S Plantureux, F Vertès, JL Peyraud) pp. 55–63. (European Grassland Federation)
Ludvíková V, Pavlu V, Pavlů L, Gaisler J, Hejcman M (2015) Sward-height patches under intensive and extensive grazing density in an Agrostis capillaris grassland. Folia Geobotanica 50, 219–228.
| Sward-height patches under intensive and extensive grazing density in an Agrostis capillaris grassland.Crossref | GoogleScholarGoogle Scholar |
Marriott CA, Hood K, Fisher JM, Pakeman RJ (2009) Long-term impacts of extensive grazing and abandonment on the species composition, richness, diversity and productivity of agricultural grassland. Agriculture, Ecosystems & Environment 134, 190–200.
| Long-term impacts of extensive grazing and abandonment on the species composition, richness, diversity and productivity of agricultural grassland.Crossref | GoogleScholarGoogle Scholar |
Müller J, Grenzdörffer G, Sweers W (2021) Space use, herbage selection, and animal performance of grazing heifers on a peaty river valley section. Journal of Applied Animal Research 49, 270–283.
| Space use, herbage selection, and animal performance of grazing heifers on a peaty river valley section.Crossref | GoogleScholarGoogle Scholar |
Nevens F, Reheul D (2003) Permanent grassland and 3-year leys alternating with 3 years of arable land: 31 years of comparison. European Journal of Agronomy 19, 77–90.
| Permanent grassland and 3-year leys alternating with 3 years of arable land: 31 years of comparison.Crossref | GoogleScholarGoogle Scholar |
Nüsse A, Linsler D, Kaiser M, Ebeling D, Tonn B, Isselstein J, Ludwig B (2017) Effect of grazing intensity and soil characteristics on soil organic carbon and nitrogen stocks in a temperate long-term grassland. Archives of Agronomy and Soil Science 63, 1776–1783.
| Effect of grazing intensity and soil characteristics on soil organic carbon and nitrogen stocks in a temperate long-term grassland.Crossref | GoogleScholarGoogle Scholar |
Öckinger E, Smith HG (2007) Semi-natural grasslands as population sources for pollinating insects in agricultural landscapes. Journal of Applied Ecology 44, 50–59.
| Semi-natural grasslands as population sources for pollinating insects in agricultural landscapes.Crossref | GoogleScholarGoogle Scholar |
Pakeman RJ, Fielding DA, Everts L, Littlewood NA (2019) Long-term impacts of changed grazing regimes on the vegetation of heterogeneous upland grasslands. Journal of Applied Ecology 56, 1794–1805.
| Long-term impacts of changed grazing regimes on the vegetation of heterogeneous upland grasslands.Crossref | GoogleScholarGoogle Scholar |
Pavlů V, Schellberg J, Hejcman M (2011) Cutting frequency vs. N application: effect of a 20-year management in Lolio-Cynosuretum grassland. Grass and Forage Science 66, 501–515.
| Cutting frequency vs. N application: effect of a 20-year management in Lolio-Cynosuretum grassland.Crossref | GoogleScholarGoogle Scholar |
Pavlů K, Kassahun T, Pavlů VV, Pavlů L, Blažek P, Homolka P (2021) The effects of first defoliation and previous management intensity on forage quality of a semi-natural species-rich grassland. PLoS ONE 16, e0248804
| The effects of first defoliation and previous management intensity on forage quality of a semi-natural species-rich grassland.Crossref | GoogleScholarGoogle Scholar |
Perotti E, Kunze N, Isselstein J, Tonn B (2018) Selective grazing and nutrient transfer through cattle interactively affects pasture vegetation. In ‘Proceedings of the 27th EGF general meeting on sustainable meat and milk production from grasslands, Grassland Science in Europe, Vol. 23’. p. 319. (European Grassland Federation)
Pe’er G, Rouet-Leduc J, van der Plas F, Helmer W, Moreira M, Rauhut J, Fagúndez J, Mikšytė E, Morkvėnas Z (2021) How European policies, especially the Common Agricultural Policy, can better support extensive grazing systems: synthesis of interviews with land users and experts. GrazeLIFE Report 2021. Available at https://www.rewildingeurope.com/wp-content/uploads/publications/grazelife-report/
Pinheiro J, Bates D, DebRoy S, Sarkar D (2020) nlme: linear and nonlinear mixed effects models, R package version 3.1-147. Available at https://CRAN.R-project.org/package=nlme [Verified 4 August 2022]
R Development Core Team (2020) ‘R: a language and environment for statistical computing.’ (R Foundation for Statistical Computing). Available at http://www.R-project.org [Verified 4 August 2022]
Roca-Fernández AI, Peyraud JL, Delaby L, Delagarde R (2016) Pasture intake and milk production of dairy cows rotationally grazing on multi-species swards. Animal 10, 1448–1456.
| Pasture intake and milk production of dairy cows rotationally grazing on multi-species swards.Crossref | GoogleScholarGoogle Scholar |
Rook AJ, Dumont B, Isselstein J, Osoro K, WallisDeVries MF, Parente G, Mills J (2004) Matching type of livestock to desired biodiversity outcomes in pastures – a review. Biological Conservation 119, 137–150.
| Matching type of livestock to desired biodiversity outcomes in pastures – a review.Crossref | GoogleScholarGoogle Scholar |
Rui Y, Jackson RD, Cotrufo MF, Sanford GR, Spiesman BJ, Deiss L, Culman SW, Liang C, Ruark MD (2022) Reply to Lajtha and Silva: agriculture and soil carbon persistence of grassland-derived Mollisols. Proceedings of the National Academy of Sciences 119, e2204142119
| Reply to Lajtha and Silva: agriculture and soil carbon persistence of grassland-derived Mollisols.Crossref | GoogleScholarGoogle Scholar |
Rutter SM, Orr RJ, Yarrow NH, Champion RA (2004) Dietary preference of dairy cows grazing ryegrass and white clover. Journal of Dairy Science 87, 1317–1324.
| Dietary preference of dairy cows grazing ryegrass and white clover.Crossref | GoogleScholarGoogle Scholar |
Şahin Demirbağ N, Röver K-U, Wrage N, Hofmann M, Isselstein J (2009) Herbage growth rates on heterogeneous swards as influenced by sward-height classes. Grass and Forage Science 64, 12–18.
| Herbage growth rates on heterogeneous swards as influenced by sward-height classes.Crossref | GoogleScholarGoogle Scholar |
Schüller H (1969) Die CAL-Methode, eine neue Methode zur Bestimmung des pflanzenverfügbaren Phosphates in Böden. Zeitschrift für Pflanzenernährung und Bodenkunde 123, 48–63.
| Die CAL-Methode, eine neue Methode zur Bestimmung des pflanzenverfügbaren Phosphates in Böden.Crossref | GoogleScholarGoogle Scholar |
Scimone M, Rook AJ, Garel JP, Sahin N (2007) Effects of livestock breed and grazing intensity on grazing systems: 3. Effects on diversity of vegetation. Grass and Forage Science 62, 172–184.
| Effects of livestock breed and grazing intensity on grazing systems: 3. Effects on diversity of vegetation.Crossref | GoogleScholarGoogle Scholar |
Tonn B, Raab C, Isselstein J (2019a) Sward patterns created by patch grazing are stable over more than a decade. Grass and Forage Science 74, 104–114.
| Sward patterns created by patch grazing are stable over more than a decade.Crossref | GoogleScholarGoogle Scholar |
Tonn B, Densing EM, Gabler J, Isselstein J (2019b) Grazing-induced patchiness, not grazing intensity, drives plant diversity in European low-input pastures. Journal of Applied Ecology 56, 1624–1636.
| Grazing-induced patchiness, not grazing intensity, drives plant diversity in European low-input pastures.Crossref | GoogleScholarGoogle Scholar |
Trott H, Wachendorf M, Ingwersen B, Taube F (2004) Performance and environmental effects of forage production on sandy soils. I. Impact of defoliation system and nitrogen input on performance and N balance of grassland. Grass and Forage Science 59, 41–55.
| Performance and environmental effects of forage production on sandy soils. I. Impact of defoliation system and nitrogen input on performance and N balance of grassland.Crossref | GoogleScholarGoogle Scholar |
Vandenberghe C, Prior G, Littlewood NA, Brooker R, Pakeman R (2009) Influence of livestock grazing on meadow pipit foraging behaviour in upland grassland. Basic and Applied Ecology 10, 662–670.
| Influence of livestock grazing on meadow pipit foraging behaviour in upland grassland.Crossref | GoogleScholarGoogle Scholar |
van Zanten HHE, Mollenhorst H, Klootwijk CW, van Middelaar CE, de Boer IJM (2016) Global food supply: land use efficiency of livestock systems. The International Journal of Life Cycle Assessment 21, 747–758.
| Global food supply: land use efficiency of livestock systems.Crossref | GoogleScholarGoogle Scholar |
Wallis de Vries MF, Parkinson AE, Dulphy JP, Sayer M, Diana E (2007) Effects of livestock breed and grazing intensity on biodiversity and production in grazing systems. 4. Effects on animal diversity. Grass and Forage Science 62, 185–197.
| Effects of livestock breed and grazing intensity on biodiversity and production in grazing systems. 4. Effects on animal diversity.Crossref | GoogleScholarGoogle Scholar |
Whitehead DC (2000) ‘Nutrient elements in grassland: soil–plant–animal relationships.’ (CABI Publishing)
Wrage N, Şahin Demirbağ N, Hofmann M, Isselstein J (2012) Vegetation height of patch more important for phytodiversity than that of paddock. Agriculture, Ecosystems & Environment 155, 111–116.
| Vegetation height of patch more important for phytodiversity than that of paddock.Crossref | GoogleScholarGoogle Scholar |
Zhao G, Siebert S, Enders A, Rezaei EE, Yan C, Ewert F (2015) Demand for multi-scale weather data for regional crop modeling. Agricultural and Forest Meteorology 200, 156–171.
| Demand for multi-scale weather data for regional crop modeling.Crossref | GoogleScholarGoogle Scholar |
Zhao Y, Liu Z, Wu J (2020) Grassland ecosystem services: a systematic review of research advances and future directions. Landscape Ecology 35, 793–814.
| Grassland ecosystem services: a systematic review of research advances and future directions.Crossref | GoogleScholarGoogle Scholar |
Zuur AF, Ieno EN, Walker NJ, Saveliev AA, Smith GM (2009) ‘Mixed effects models and extensions in ecology with R.’ (Springer)
