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Life Cycle Assessment of China's agroecosystems

文献类型： 外文期刊

作者： Liang, Long 1 ; Lal, Rattan 2 ; Ridoutt, Bradley G. 3 ; Du, Zhangliu 4 ; Wang, Dapeng 5 ; Wang, Liyuan 6 ; Wu, Wenlian 1 ;

作者机构： 1.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China

2.Ohio State Univ, Carbon Management & Sequestrat Ctr, Columbus, OH 43210 USA

3.CSIRO, Clayton, Vic 3169, Australia

4.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China

5.Chinese Acad Trop Agr Sci, Rubber Res Inst, Danshou 571737, Peoples R China

6.Shanghai Acad Agr Sci, Shanghai 201403, Peoples R China

关键词： Agricultural life cycle analysis; Framework; Carbon footprint; Sustainable development; Agroecosystem

期刊名称：ECOLOGICAL INDICATORS （ 影响因子：4.958； 五年影响因子：5.846 ）

ISSN： 1470-160X

年卷期： 2018 年 88 卷

页码：

收录情况： SCI

摘要： Agricultural Life Cycle Assessment (ALCA) is an important tool able to inform environmental improvement in agricultural ecosystems. However, many studies address only one or a few environmental aspects, and where several indicators are used, the optional steps of normalization and weighting are rarely used to support interpretation. In this study, the winter wheat-summer maize rotation, widely practiced on the North China Plain, was evaluated using a variety of indicators addressing natural resource use, human and ecosystem health. The results after normalization and weighting highlight the need to address eutrophication potential and aquatic ecotoxicity potential as significant environmental aspects, especially in the higher input winter wheat part of the rotation. Different results were obtained using Chinese normalization factors compared to global factors, highlighting the need to use local factors when local environmental challenges are the priority. With the scarcity of arable land in China, there have been concerted and successful attempts to raise yields. However, there is now a need to improve nutrient management and pest control as strategic priorities. The life cycle perspective is important because opportunities also exist to achieve environmental improvement in the local manufacturing systems for farming inputs.

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