Bergström, Lars
- Institutionen för mark och miljö, Sveriges lantbruksuniversitet
Sammanfattning
Large inputs of phosphorus (P) in chemical fertilizers and feed supplements since 1978 have improved soil P status in arable land in China, but have also created challenges by increasing P concentrations in manure and exacerbating water quality degradation. Arable land in China can be divided into five management zones based on soil P chemistry, with 15-92 % of arable land having lower P status than the agronomic optimum and 0.3-7.2 % having severe risks of P leaching losses. A scenario analysis of soil P budget and agronomic P demand during 2011-2030 highlighted the great pressure China faces in sustainable P management and the need for drastic changes in current practices. This includes new policies to reduce P supplementation of feed and improved P use efficiency by livestock and programs to expand the adoption of appropriate fertilization, soil conservation, and drainage management practices to minimize P losses.
Nyckelord
Phosphorus management zone; Olsen P; Environment; Crop yield; Phosphorus loss
Publicerad i
AMBIO: A Journal of the Human Environment
2015, volym: 44, nummer: Suppl 2, sidor: S274-S285
Utgivare: SPRINGER
SLU författare
Globala målen (SDG)
SDG2 Ingen hunger
SDG15 Ekosystem och biologisk mångfald
UKÄ forskningsämne
Miljö- och naturvårdsvetenskap
Markvetenskap
Publikationens identifierare
- DOI: https://doi.org/10.1007/s13280-015-0633-0
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/76124