Suchergebnisse

Understanding the dynamics of agricultural expansion, their drivers, and interactions is critical for biodiversity conservation, ecosystem-services provision, and the future sustainability of agricultural development in Sub-Saharan Africa (SSA). However, there is limited understanding of the drivers of agricultural expansion. A systematic review of the drivers of agricultural expansion was conducted from 1970 to 2020 using Web of Science, Elsevier Scopus and Google Scholar. Two researchers reviewed the papers separately based on inclusion and exclusion criteria. Fifteen papers were included in the final systematic review. The paper proposed expansion pathways in a conceptual framework and identified proximate and underlying drivers. Population dynamics and government policies were found to be key underlying drivers of agricultural expansion. The proximate drivers include economic opportunities such as agriculture mechanisation and cash crops production, and more troubling trends such as soil fertility decline and climate change and variability. This paper further explores the constraints that have been found to slow down agricultural expansion, including strong land institutions and good governance.

Sam A. Lewisohn, chairman. ; Cover-title. ; Bibliography: p. 68-69. ; Mode of access: Internet. ; Accompanied by "Addendum III. Report upon conditions affecting safety to life with respect to fire, by the National board of fire underwriters to the Commission to investigate prison administration and construction at the various state prison institutions, state of New York." (2 p. L., 134 p. plans (part fold.) 23 cm.) Published: [New York, 1931] Bound with main work. ; Accompanied by "Addendum II. Supplemental report. The classification of the prison inmates of New York state. Submitted by V. C. Branham, M.D., deputy commissioner, New York state department of correction, Dr. Walter N. Thayer, jr., commissioner, to Commission to investigate prison administration and construction, state of New York." (1 p. L., ii, 69 p. incl. tables, diagrs. 23 cm.) Published: [New York, 1931] Bound with main work. ; Accompanied by "Addendum I. Preliminary report . December 22, 1930." (27 p. pl., plans. 23 cm.) Published: [New York, 1931] Bound with main work.