The forms and presence itself of farming in coastal territories changed profoundly in the 20th century. By contrast with other interface farming systems, such as mountain or peri-urban farming, coastal farming has rarely been studied as such and has not, until now, been considered as a useful category to describe and analyse production systems. The aim of this article is thus to address the relevance of such a categorization, using empirical data collected in Brittany (France) as well as contextual indicators, but also by carrying out a systemic qualitative-quantitative analysis, questioning the forms, depth and continuity of marine influence on farming activities at the local scale. We show that specific traits of coastal farming do indeed exist. A greater diversity of farming systems exists in coastal strip than inland at the regional scale. Four configurations of coastal farming were identified, which result from distinct dynamics and combinations of urbanization and environmental pressures on agriculture. But these specific features cannot be revealed without a comprehensive and historicized approach of its interactions with the coastal zone as a territory, rather than a biophysical milieu. These configurations are characterized in the typical spatial extent of coastal farming and spatial patterns of the transition to inland farming (gradient, discontinuities).

沿海地区农业的形式和存在本身在 20 世纪发生了深刻变化。与山区或城郊农业等其他界面农业系统相比，沿海农业很少被研究，直到现在，还没有被认为是描述和分析生产系统的有用类别。因此，本文的目的是通过使用在布列塔尼（法国）收集的经验数据和背景指标来解决这种分类的相关性，同时也通过进行系统的定性-定量分析，质疑形式、深度和连续性海洋对当地农业活动的影响。我们证明了沿海农业的具体特征确实存在。在区域范围内，沿海地带的耕作系统比内陆的耕作系统更加多样化。确定了四种沿海农业配置，这是城市化和环境对农业的压力的不同动态和组合的结果。但是，如果不采用综合的、历史化的方法来了解它与沿海地区作为领土而不是生物物理环境的相互作用，就无法揭示这些具体特征。这些配置的特点是沿海农业的典型空间范围和向内陆农业过渡的空间模式（梯度、不连续）。而不是生物物理环境。这些配置的特点是沿海农业的典型空间范围和向内陆农业过渡的空间模式（梯度、不连续）。而不是生物物理环境。这些配置的特点是沿海农业的典型空间范围和向内陆农业过渡的空间模式（梯度、不连续）。