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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - The value of manure - Manure as co-product in life cycle assessment
AU - Leip, A.
AU - Ledgard, S.
AU - Uwizeye, A.
AU - Palhares, J.C.P.
AU - Aller, M.F.
AU - Amon, B.
AU - Binder, M.
AU - Cordovil, C.M.D.S.
AU - De Camillis, C.
AU - Dong, H.
AU - Fusi, A.
AU - Helin, J.
AU - Hörtenhuber, S.
AU - Hristov, A.N.
AU - Koelsch, R.
AU - Liu, C.
AU - Masso, C.
AU - Nkongolo, N.V.
AU - Patra, A.K.
AU - Redding, M.R.
AU - Rufino, M.C.
AU - Sakrabani, R.
AU - Thoma, G.
AU - Vertès, F.
AU - Wang, Y.
PY - 2019/7/1
Y1 - 2019/7/1
N2 - Livestock production is important for food security, nutrition, and landscape maintenance, but it is associated with several environmental impacts. To assess the risk and benefits arising from livestock production, transparent and robust indicators are required, such as those offered by life cycle assessment. A central question in such approaches is how environmental burden is allocated to livestock products and to manure that is re-used for agricultural production. To incentivize sustainable use of manure, it should be considered as a co-product as long as it is not disposed of, or wasted, or applied in excess of crop nutrient needs, in which case it should be treated as a waste. This paper proposes a theoretical approach to define nutrient requirements based on nutrient response curves to economic and physical optima and a pragmatic approach based on crop nutrient yield adjusted for nutrient losses to atmosphere and water. Allocation of environmental burden to manure and other livestock products is then based on the nutrient value from manure for crop production using the price of fertilizer nutrients. We illustrate and discuss the proposed method with two case studies.
AB - Livestock production is important for food security, nutrition, and landscape maintenance, but it is associated with several environmental impacts. To assess the risk and benefits arising from livestock production, transparent and robust indicators are required, such as those offered by life cycle assessment. A central question in such approaches is how environmental burden is allocated to livestock products and to manure that is re-used for agricultural production. To incentivize sustainable use of manure, it should be considered as a co-product as long as it is not disposed of, or wasted, or applied in excess of crop nutrient needs, in which case it should be treated as a waste. This paper proposes a theoretical approach to define nutrient requirements based on nutrient response curves to economic and physical optima and a pragmatic approach based on crop nutrient yield adjusted for nutrient losses to atmosphere and water. Allocation of environmental burden to manure and other livestock products is then based on the nutrient value from manure for crop production using the price of fertilizer nutrients. We illustrate and discuss the proposed method with two case studies.
KW - Allocation
KW - Fertilizer
KW - Life cycle assessment
KW - Livestock supply chains
KW - Manure
KW - Nutrients
U2 - 10.1016/j.jenvman.2019.03.059
DO - 10.1016/j.jenvman.2019.03.059
M3 - Journal article
VL - 241
SP - 293
EP - 304
JO - Journal of Environmental Management
JF - Journal of Environmental Management
SN - 0301-4797
ER -