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该研究发现棉花种植环节的环境影响取决于灌溉、农药和化肥用量。全球约有一半的棉田使用地下水灌溉，农药平均施用量为 1.57 kg/ha，氮磷肥平均投入量为150 kg/ha。全球各棉区灌溉、农药、氮肥施用量差异较大，经济发展水平高的地区施用量较高，而经济水平和水资源有限的棉区施用量较少，亟需因地制宜提高灌溉用水、化肥、农药利用效率，减少生产环节的环境影响。研究还发现，除了棉花种植环节对环境的影响外，...
Chinese Agricultural Transition: Trade, Social and Environmental Impacts
Chinese Agricultural Transition Trade Social Environmental Impacts
2014/3/12
The project investigates the impact of China’s current economic transition on its agricultural economy with special reference to the consequences of trade liberalization and of changing trade flows. T...
A summary of the environmental impacts of roads, management responses, and research gaps: A literature review
access management mitigation techniques planning research needs road analysis roadassessment road effects roads
2010/8/31
There are an estimated 400 000-550 000 km of unpaved resource roads in British Columbia. These roads are used for forest, mineral, and energy development, commercial and public recreation, and in some...
Farming systems and environmental impacts.
Environmental Impacts on Concentrate Feed Supply Systems for Japanese Domestic Livestock Industry as Evaluated by a Life-cycle Assessment Method
Livestock Barley Concentrate Feed Life-cycle Assessment Greenhouse Gases Emissions Trading
2016/4/19
The objectives of this study were to evaluate and compare the environmental load of two different concentrate feed supply systems to the Japanese domestic livestock industry using the Life-cycle Asses...