Commercial urban agriculture is typically restricted to agriculture land use, green or open spaces, or under-utilised or undeveloped land. As urbanising cities face the double threats of urban food insecurity and land scarcity, multi-functional urban land uses that integrate rather than separate agriculture from other land uses could be a critical adaptation for the sustainability of future cities. With less than 1% of land in agricultural use, the high-density, city-state of Singapore is testing integrative approaches to where and how food can be grown in the city. The shift toward land use multiplicity is prompting cross-agency collaboration in policy development. The aims of this paper were to map changes in agricultural use of land and describe emerging policy trends in Singapore related to cross-agency collaboration and land use multiplicity. Given growing global attention to urban food policy, Singapore is a timely example where policies support integrated urban food production through high-tech intensification, a model AgriFood Innovation Park, and promotion of industrial and commercial land uses toward efficient and value-added activities that include urban farms. More examples of agriculture co-located with other land uses are needed to understand opportunities and challenges related to multi- or shared-use spaces particularly for tenure rights. Resolving regulatory and legal constraints will enable high and low tech farms to produce substantially more food in the city.

商业城市农业通常仅限于农业用地，绿色或开放空间，未充分利用或未开发的土地。随着城市化城市面临城市粮食不安全和土地短缺的双重威胁，将农业与其他土地用途结合起来而不是分开的多功能城市土地用途可能是未来城市可持续性的关键适应措施。高密度的城市国家新加坡只有不到1％的土地用于农业用途，因此正在测试有关在城市中何处以及如何种植食物的综合方法。土地用途多样化的趋势正在推动政策制定中的跨机构合作。本文的目的是绘制土地农业用途的变化图，并描述新加坡与跨机构合作和土地利用多样性相关的新兴政策趋势。考虑到全球对城市食品政策的日益关注，新加坡是一个及时的例子，该政策通过高科技集约化，模范农业食品创新园，促进工业和商业土地利用向高效和增值活动的支持来支持城市综合食品生产，包括城市农场。需要更多与其他土地用途并置的农业实例，以了解与多用途或共享用途空间有关的机遇和挑战，特别是权属权利。解决法规和法律限制将使高科技农场和低技术农场能够在城市中生产更多的食物。促进工业和商业土地用途，以实现包括城市农场在内的高效和增值活动。需要更多与其他土地用途并置的农业实例，以了解与多用途或共享用途空间有关的机遇和挑战，特别是权属权利。解决法规和法律限制将使高科技农场和低技术农场能够在城市中生产更多的食物。促进工业和商业土地用途，以实现包括城市农场在内的高效和增值活动。需要更多与其他土地用途并置的农业实例，以了解与多用途或共享用途空间有关的机遇和挑战，特别是权属权利。解决法规和法律限制将使高科技农场和低技术农场能够在城市中生产更多的食物。