Environmental stress and grain yields in China

Files

IDL-54425.pdf (1.18 MB)

Date

1993-07

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

After 1984 China's grain production began to stagnate, slowing during a time of continuing expansion of chemical inputs, irrigated area, and high-yielding rice, wheat, and maize varieties. In this paper we explore the hypothesis that the accumulation of environmental pressures, including erosion, salinization. Soil exhaustion, and degradation of the local environment, may be partially responsible for the recent slowdown of grain yields. Using provincial production data from 1975 [Q 1990. the analysis shows that environmental factors. especially the breakdown of the environment. did contribute to the -decline in the rate of increase of yields in China during the late t 980s. Erosion and 'salinization had a small, negative effect on yields.

Description

Also published in the American Journal of Agricultural Economics, v. 77, no. 4, November 1995

Keywords

ENVIRONMENTAL DEGRADATION, AGRICULTURAL PRODUCTIVITY, SOIL DEGRADATION, AGRICULTURAL ECONOMICS, ENVIRONMENTAL ECONOMICS, ECONOMETRIC ANALYSIS, CROP LOSSES

Citation

URI

http://hdl.handle.net/10625/54425
 http://krishikosh.egranth.ac.in/bitstream/1/2055593/1/MPKV-2055.pdf

DOI

Collections

IDRC Research Results / Résultats de recherches du CRDI
1990s / Années 1990
Agriculture, Food and Nutrition Sciences Division / Division des sciences de l'agriculture, de l'alimentation et de la nutrition