关键词: 精准农业技术, 环境效益评价, 影响因素

Abstract: Precision agriculture is an important win-win path that ensures crop yield and protects the agro-environment. This paper reviewed the environmental benefits of water and fertilizer precision application and pest disease and weed precision management. By saving resource input, reducing resource loss, enhancing utilization efficiency, precision agriculture dropped soil and water environment porution brought by agriculture production. However, at present the evaluation was mainly focused on resource input, utilization efficienc, and soil and water quality. The acquisition ways of field variable information were different. There were differences between model prediction and field application effect. Soil quality and crop species were different. All these factors had led to the uncertainty of environment effect evaluation of precision agriculture. Future studies should establish a field fixed location trial for precision agriculture technology; carry out long-term ecological environment benefit evaluation, so as to supply valuable data for popularization and application of precision agriculture technology.

Key words: precision agriculture technology, environmental benefit evaluation, influence factors