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Effects of Management Practices on Soil Properties and Plant Nutrition in Hay Meadows in Picos de Europa
Environments Pub Date : 2021-04-25 , DOI: 10.3390/environments8050038
Judith Álvarez , Elías Afif , Tomás E. Díaz , Laura García , Jose A. Oliveira

Fertilization and mowing affects the physico-chemical properties of soils, as well as the characteristics of the plants growing on them. Changes in the management techniques are causing semi-natural grasslands to disappear all over Europe. These grasslands host a great amount of diversity, thus their conservation is a top priority. This work studies whether the kind of management has an influence on the soil properties and the foliar content in macronutrients in 25 hay meadows located in Picos de Europa (10 in Asturias, 10 in Castilla y León and 5 in Cantabria). Soils at a 0–20 cm depth showed a high content of organic matter and a low C/N ratio. Effective cation exchange capacity was adequate for a texture, which varied from sandy clay loam to loam, with an average clay content of 17%. Mean values of foliar nutrient concentrations showed a deficiency in K. In this study, management practices were shown to affect some properties of the soils, namely pH, sand percentage and exchangeable K and Ca, to different extents. The highest values of pH and exchangeable Ca were significantly correlated with the least intensive management.

中文翻译:

管理措施对欧洲短草草甸草场土壤特性和植物营养的影响

施肥和割草会影响土壤的物理化学性质以及在其上生长的植物的特性。管理技术的变化导致半自然草原在整个欧洲消失。这些草原具有很大的多样性,因此,对其进行保护是重中之重。这项工作研究了这种管理方式是否对Picos de Europa的25个干草草地(阿斯图里亚斯的10个,卡斯蒂利亚伊莱昂的10个和坎塔布里亚的5个)的土壤特性和常量养分中叶含量的影响。0–20 cm深度的土壤显示出较高的有机质含量和较低的C / N比。有效的阳离子交换能力足以满足质地的要求,从砂质粘土壤土到另一块壤土都有变化,平均粘土含量为17%。叶面养分浓度的平均值显示出钾的缺乏。在这项研究中,管理实践显示出在不同程度上影响土壤的某些特性,即pH,沙含量以及可交换的钾和钙。pH和可交换Ca的最高值与强度最小的管理显着相关。
更新日期:2021-04-26
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