登入選單
返回Google圖書搜尋
Unravelling China’s Livestock Transition
其他書名
Nutrient Flows and Greenhouse Gas Emissions
出版Wageningen University, 2022
ISBN94644730619789464473063
URLhttp://books.google.com.hk/books?id=ZvRbzwEACAAJ&hl=&source=gbs_api
註釋Hence, the main objective of the research described in this thesis is to increase the understanding of the livestock transition in China and its impacts on livestock production, manure management, nutrient cycling and the environment. The specific objectives of this thesis are: I) to develop and apply a method for a systematic analysis of the effects of international trade of food and feed during the last five decades on global land use, fertilizer N use and feed use efficiencies and livestock productivity; II) to analyze the livestock transition in China and its driving forces, impacts and possible future consequences at national and international levels; III) to analyze the N, P and K flows and losses in the ‘feed-animal-manure-cropland’ chain for the various livestock production systems in China, and to explore options for increasing nutrient use efficiency and recycling; IV) and to analyze the effects of the spatially uneven distributions of livestock production in China on nutrient recycling efficiency, and explore the effects of spatial planning options for crop-livestock integration on nutrient recycling efficiency .