Academic Journal
The phosphorus dilemma in organically farmed grasslands – are legume presence and phytodiversity incompatible?
| العنوان: | The phosphorus dilemma in organically farmed grasslands – are legume presence and phytodiversity incompatible? |
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| المؤلفون: | Barbara Mahnke, Nicole Wrage-Mönnig, Peter Leinweber, Jürgen Müller |
| المصدر: | Ecosystems and People, Vol 15, Iss 1, Pp 61-73 (2019) |
| بيانات النشر: | Taylor & Francis Group |
| سنة النشر: | 2019 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | biodiversity, ecosystem service, grassland, legumes, n:p ratio, organic farming, soil phosphorus, Human ecology. Anthropogeography, GF1-900, Environmental sciences, GE1-350 |
| الوصف: | Organic grassland farmers are caught between the pressure to operate profitably and the need to ensure ecosystem services like nature conservation. Phosphorus (P) management is at the core of this dilemma: grassland legumes, which are vital for nitrogen (N) inputs, forage quantity and quality, have high P requirements. However, rising soil P contents lead to decreased phytodiversity. We examined this ‘P dilemma’ based on data of a study in typical organically managed grasslands in north-eastern Germany. We found a slight, but not significant negative correlation between the soil P contents and phytodiversity. Such a negative correlation was much clearer in broader ecological studies of European grasslands, probably due to a scale effect. Despite comparably small P concentrations, we detected only moderate species richness. Thus, other factors besides P concentrations are limiting phytodiversity here, probably N concentrations. The P concentrations in the biomass of various legume species indicated P limitations for most of them. We conclude that a bundle of adapted management measures could reconcile economic and environmental requirements of organic farmers to a certain degree and thus lessen the conflict between the two ecosystem services ‘biodiversity’ and ‘forage production’.EDITED BY Christine Fürst |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2639-5916 |
| Relation: | http://dx.doi.org/10.1080/26395908.2018.1556227; https://doaj.org/toc/2639-5916; https://doaj.org/article/4e142ef4c119461cb5d2fc656b15e306 |
| DOI: | 10.1080/26395908.2018.1556227 |
| الاتاحة: | https://doi.org/10.1080/26395908.2018.1556227 https://doaj.org/article/4e142ef4c119461cb5d2fc656b15e306 |
| رقم الانضمام: | edsbas.917CB5EF |
| قاعدة البيانات: | BASE |
| تدمد: | 26395916 |
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| DOI: | 10.1080/26395908.2018.1556227 |