Soil phosphorus budget in global grasslands and implications for management
نویسندگان
چکیده
منابع مشابه
Soil phosphorus constrains biodiversity across European grasslands.
Nutrient pollution presents a serious threat to biodiversity conservation. In terrestrial ecosystems, the deleterious effects of nitrogen pollution are increasingly understood and several mitigating environmental policies have been developed. Compared to nitrogen, the effects of increased phosphorus have received far less attention, although some studies have indicated that phosphorus pollution...
متن کاملSoil erosion and the global carbon budget.
Soil erosion is the most widespread form of soil degradation. Land area globally affected by erosion is 1094 million ha (Mha) by water erosion, of which 751 Mha is severely affected, and 549 Mha by wind erosion, of which 296 Mha is severely affected. Whereas the effects of erosion on productivity and non-point source pollution are widely recognized, those on the C dynamics and attendant emissio...
متن کاملEects of irrigation on phosphorus in soil, soil microbes and plants of semi-natural grasslands
Water and phosphorus (P) are two critical resources for high nature value farming in semi-dry mountains. ey are major drivers of grassland productivity but can negatively aect plant diversity. Soil moisture is known to aect soil microbial activity and plant P nutrition but the eects of irrigation on soil P status, soil microbial P and plant P nutrition in semi-natural grasslands remain larg...
متن کاملNegative global phosphorus budgets challenge sustainable intensification of grasslands
Grasslands provide grass and fodder to sustain the growing need for ruminant meat and milk. Soil nutrients in grasslands are removed through withdrawal in these livestock products and through animal manure that originates from grasslands and is spread in croplands. This leads to loss of soil fertility, because globally most grasslands receive no mineral fertilizer. Here we show that phosphorus ...
متن کاملSoil Organic Carbon Content and Stocks in Relation to Grazing Management in Semi-Arid Grasslands of Kenya
Rangelands cover approximately 85% of Kenya’s land mass and is a major resource for livestock farming with a considerable potential to mitigate climate change, yet these lands are stressed differently by various management. Our study aimed at determining the influence of grazing management systems (rotational, continuous and ungrazed) on soil organic carbon stocks in Yoani ranch located in the ...
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ژورنال
عنوان ژورنال: Journal of Arid Environments
سال: 2017
ISSN: 0140-1963
DOI: 10.1016/j.jaridenv.2017.04.008