The spatiotemporal change characteristics of Cultivated Land Productivity (CLP) are imperative for ensuring regional food security, especially given recent global warming, social development and population growth. Based on the hypothesis that the Gross Primary Productivity (GPP) is a proxy of land productivity, the Moderate Resolution Imaging Spectroradiometer (MODIS) data with 500-m spatial resolution and 8-day temporal resolution was employed by the Vegetation Photosynthesis Model (VPM) to calculate GPP in Jilin Province, China.

A rapid increase in population in sub-Saharan Africa has caused a decrease in farm size, an increase in the number of landless farmers, and soil erosion in communal forests due to increasing utilization. Ethiopia has addressed this problem by introducing an epoch-making privatization policy for the allocation of communal land to landless farmers. This policy promotes the economic utilization of the communal land while protecting natural resources. Hitherto, few studies have evaluated the impact of the policy.

The sustainable management of natural resources under climate change conditions is a critical research issue. Among the many approaches emerged in recent times, the so-called ‘nexus approach’ is gaining traction in academic and policy circles. The nexus approach presupposes the analysis of bio-physical, socio-economic and policy interlinkages among sectors (e.g., water, energy, food) for the identification of integrated solutions and the support of policy decisions. Ultimately, the nexus approach aims to identify synergies and trade-offs among the nexus dimensions.