Home gardens (HGs) in North-East India are the oldest form of land use practice next to shifting cultivation. Every garden is a unique entity in terms of component arrangement, organization and management, and it reflects the personal preferences of the owner, keeping in mind the suitability and site quality of the area. This study was initiated to determine the species diversity of home gardens in North-East India and also to assess the association of tree species with different site quality parameters (elevation, slope, aspect, rainfall, temperature, home garden type and age). A total of 300 home gardens were selected randomly from 11 districts of North-East India. Hill numbers were used to analyse sample completeness, size-based diversity and coverage-based diversity. Canonical correspondence analysis, Pearson’s correlation, stepwise multiple linear regression, Poisson log-linear model and linear mixed effect model were performed to study the interactions between species diversity and site quality. In total, 137 species belonging to 102 genera and 46 families were recorded from the 300 home gardens. Fabaceae was the dominant family, and Parkia timoriana (DC.) Merr. (IVI = 20.12) was the dominant species. Abundance of Artocarpus heterophyllus Lam. and Mangifera indica L had no bearing with the environmental variables and therefore are considered potential species for restoration of degraded HGs. Number of species in the HGs was best reflected by the interaction of HG type and temperature, while the model best fitted for stem density and basal area was with HG type and HG age, respectively.

印度东北部的家庭花园 (HG) 是仅次于轮垦的最古老的土地利用方式。每个花园在组件布置、组织和管理方面都是一个独特的实体，它反映了业主的个人喜好，同时牢记该地区的适宜性和场地质量。本研究旨在确定印度东北部家庭花园的物种多样性，并评估树种与不同场地质量参数（海拔、坡度、坡向、降雨量、温度、家庭花园类型和年龄）的关联。从印度东北部的 11 个地区随机选择了 300 个家庭花园。希尔数用于分析样本完整性、基于大小的多样性和基于覆盖的多样性。典型对应分析，皮尔逊相关，采用逐步多元线性回归、泊松对数线性模型和线性混合效应模型研究物种多样性与场地质量之间的相互作用。共有300个家庭花园记录了137种，隶属于102属46科。豆科是主要的科，并且Parkia timoriana (DC.) Merr . (IVI = 20.12) 是优势种。丰度的Artocarpus heterophyllus Lam。和芒果L的与环境变量没有影响，因此被认为是降级家庭网关的恢复潜力品种。HGs中的物种数量最好通过HG类型和温度的相互作用来反映，而最适合茎密度和基面积的模型分别是HG类型和HG年龄。