Effect of environmentally degraded soil on crop yield: The role of conservation

被引：6
|
作者：
Shukla, A
Dubey, B
Shukla, JB
机构：
[1] INDIAN INST TECHNOL,DEPT MATH,KANPUR 208016,UTTAR PRADESH,INDIA
[2] JIWAJI UNIV,SCH MATH & ALLIED SCI,DIV COMP APPLICAT,GWALIOR,INDIA
来源：
ECOLOGICAL MODELLING | 1996年 / 86卷 / 2-3期
关键词：
acidification; agricultural ecosystems; degradation;
D O I：
10.1016/0304-3800(95)00057-7
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
In this paper the effect of fertile top soil degraded by environmental factors such as acid rain and wind on crop yield is studied by considering a single-sector economic growth model. It is shown that if these environmental factors continue to increase without control, the fertile top soil depth tends to zero and consequently the crop yield becomes negligible. However, if suitable measures are taken to fertilize the top soil and to control the acid rain, the crop yield may be maintained at a desired level.
引用
收藏
页码：235 / 239
页数：5
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