دورية أكاديمية
Phosphorus mining for ecological restoration on former agricultural land
| العنوان: | Phosphorus mining for ecological restoration on former agricultural land |
|---|---|
| المؤلفون: | Schelfhout, Stephanie, De Schrijver, An, De Bolle, Sara, De Gelder, Leen, Demey, Andreas, Du Pré, Tom, De Neve, Stefaan, Haesaert, Geert, Verheyen, Kris, Mertens, Jan |
| المصدر: | RESTORATION ECOLOGY ; ISSN: 1061-2971 |
| سنة النشر: | 2015 |
| المجموعة: | Ghent University Academic Bibliography |
| مصطلحات موضوعية: | Earth and Environmental Sciences, humic substances, nardus grassland, phosphate-solubilizing bacteria, phytoextraction, arbuscular mycorrhiza, plant-growth-promoting rhizobacteria, ARBUSCULAR-MYCORRHIZAL FUNGI, PLANT-SPECIES LOSS, SOIL-PHOSPHORUS, NUTRIENT-UPTAKE, HUMIC-ACID, FERTILIZER APPLICATION, NITROGEN ENRICHMENT, EUROPEAN GRASSLANDS, CROP YIELD |
| الوصف: | To restore species-rich terrestrial ecosystems on ex-agricultural land, establishing nutrient limitation for dominant plant growth is essential, because in nutrient-rich soils, fast-growing species often exclude target species. However N-limitation is easier to achieve than P-limitation (because of a difference in biogeochemical behavior), biodiversity is generally highest under P-limitation. Commonly-used restoration methods to achieve low soil P-concentrations are either very expensive or take a very long time. A promising restoration technique is P-mining, an adjusted agricultural technique that aims at depleting soil-P. High biomass production and hence high P-removal with biomass is obtained by fertilizing with nutrients other than P. A pot experiment was set up to study P-mining with Lolium perenne L. on sandy soils with varying P-concentrations: from an intensively-used agricultural soil to a soil near the soil P-target for species-rich Nardus grassland. All pots received N- and K-fertilization. The effects of biostimulants on P-uptake were also assessed by the addition of arbuscular mycorrhiza (Glomus spp.), humic substances or phosphate-solubilizing bacteria (Bacillus sp. and Pseudomonas spp.). In our P-rich soil (111 μg POlsen/g), P-removal rate was high but bioavailable soil-P did not decrease. At lower soil P-concentrations (64 and 36 μg POlsen/g), bioavailable soil-P had decreased but the P-removal rate had by then dropped 60% despite N- and K-fertilization and despite that the target (< 10 μg POlsen/g) was still far away. None of the biostimulants altered this trajectory. Therefore, restoration will still take decades when starting with ex-agricultural soils unless P-fertilization history was much lower than average. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | https://biblio.ugent.be/publication/6979097Test; http://hdl.handle.net/1854/LU-6979097Test; http://dx.doi.org/10.1111/rec.12264Test; https://biblio.ugent.be/publication/6979097/file/6979098Test |
| DOI: | 10.1111/rec.12264 |
| الإتاحة: | https://doi.org/10.1111/rec.12264Test https://biblio.ugent.be/publication/6979097Test http://hdl.handle.net/1854/LU-6979097Test https://biblio.ugent.be/publication/6979097/file/6979098Test |
| حقوق: | No license (in copyright) ; info:eu-repo/semantics/restrictedAccess |
| رقم الانضمام: | edsbas.943789A2 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1111/rec.12264 |
|---|