Due to the combination of trees, crops livestock and poultry, homegardens are well-known in providing socioeconomic and agro-ecological services. This study was conducted to assess the potential contribution of homegardens toward securing domestic food requirement. A questionnaire survey with ground trothing was conducted with 145 households in Jaffna peninsula. Socioeconomic data, floristic and fauna diversity and food consumption data were gathered. Average size of a family and homegarden was 4 members and 0.083 ha, respectively. Sixty-nine plant species were recorded including 10 vegetables, 18 fruit and 43 woody plant species. Approximately 50% of the homegardeners reared livestock and poultry. Food consumption of the households evaluated based on the Food Consumption Score (FCS) of the World Food Program indicated that, 1, 12 and 73% households fell into poor, borderline and acceptable FCS categories, respectively. Expenditure on food and beverages showed a positive relationship with FCS, explaining the dependency of households on market for food necessity. Coconut was the most common income commodity and the most dominant tree species in homegardens, according to Summed Dominance Ratio of tree species. It was revealed that animal proteins and pulses are truly important in securing domestic caloric availability. Except pulses, most of the crops in homegardens were falling into the least important category with respect to FCS. It was found that a household is more secured in terms of caloric availability when homegardens are highly diverse in livestock and poultry and has access to more animal proteins. Growing animals and crops to get valuable components in homegardens will assure enhancement of food security in the future. Thus, homegarden could be a potential approach in assuring domestic food security in the area.

由于树木、农作物、牲畜和家禽的结合，家庭花园以提供社会经济和农业生态服务而闻名。本研究旨在评估家庭花园对确保家庭食物需求的潜在贡献。对贾夫纳半岛的145户家庭进行了地面调查问卷调查。收集了社会经济数据、植物群和动物群多样性以及食品消费数据。一个家庭和家庭花园的平均规模分别为 4 名成员和 0.083 公顷。共记录植物69种，其中蔬菜10种，水果18种，木本植物43种。大约 50% 的家庭园丁饲养牲畜和家禽。根据世界粮食计划署的食品消费评分 (FCS) 评估的家庭的食品消费表明，1、12% 和 73% 的家庭分别属于贫困、边缘和可接受的 FCS 类别。食品和饮料支出与 FCS 呈正相关，解释了家庭对食品需求市场的依赖。根据树种的总优势比，椰子是最常见的收入商品，也是家庭花园中最主要的树种。据透露，动物蛋白和豆类在确保国内热量供应方面确实很重要。除了豆类，家庭花园中的大多数作物都属于 FCS 最不重要的类别。研究发现，当家庭花园的家畜和家禽高度多样化并且可以获得更多动物蛋白时，家庭在热量供应方面更有保障。在家庭花园中种植动物和作物以获得有价值的成分将确保未来加强粮食安全。因此，家庭花园可能是确保该地区国内粮食安全的一种潜在方法。