Passar para o conteúdo principal

page search

Biblioteca Can economic and environmental benefits associated with agricultural intensification be sustained at high population densities? A farm level empirical analysis

Can economic and environmental benefits associated with agricultural intensification be sustained at high population densities? A farm level empirical analysis

Can economic and environmental benefits associated with agricultural intensification be sustained at high population densities? A farm level empirical analysis
Land Use Policy Volume 81

Resource information

Date of publication
Janeiro 2019
Resource Language
ISBN / Resource ID
lupj:S0264837718307750
Pages
12
License of the resource

Boserup’s pioneering theory holds that rising population density can be accompanied by sustainable agricultural intensification. But can this positive relationship be sustained indefinitely, or are there conditions under which rising population density can lead to declining agricultural productivity? This study utilizes survey data on farm households in Kenya and soil samples on their main maize plots to assess whether Boserupian agricultural intensification is sustainable at high population densities. The study employs econometric estimation methods to assess the effect of land management practices and population density on soil quality and then determines the effect of soil quality on crop productivity. Results show evidence of endogenous sustainable agricultural intensification accompanied by improvements in soil quality and crop yields at low population densities. However, as population densities exceed roughly 600 persons/km2, we observe a deterioration in indicators of soil organic and reactive carbon, soil pH, and plant available phosphorous. Deterioration in soil quality leads to binding nutrient constraints associated with reduced crop yield response to inorganic fertilizer application that further reduces crop productivity. These results raise the specter of unsustainable forms of agricultural intensification associated with deteriorating soil capital, and point to the imperative of identifying and implementing effective strategies for increasing farmers’ use of sustainable land management practices in rural areas facing already high and rising population densities.

Share on RLBI navigator
NO

Authors and Publishers

Author(s), editor(s), contributor(s)

Kyalo Willy, Daniel
Muyanga, Milu
Jayne, Thomas

Publisher(s)
Data Provider
Geographical focus