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- W2370798418 abstract "Grain yields depend on cultivated land resource greatly.Decrease of cultivated land area and degradation of cultivated land will become awful because cultivated land will be partly transformed irreversibly into non-agricultural uses in the process of the speedy industrialization and urbanization and economic development which will induce food crisis in region.Realizing analytical results of grain yield change and relationship between grain yield and cultivated land change that base on researching the response of grain yield to cultivated land change mathematically is important.Based on identifying the relationship between cultivated land change and food security in Yangtze River delta,this paper analyses the impact factor of grain productivity and degree of sensitivity of food security.The research result shows the cultivated land and grain productivity are interrelated in different periods strongly.The factors of cultivated land quantity and cultivated land quality change influencing grain productivity are dynamic.The negative impact of land quantity and quality change to the grain productivity is obvious.Ensuring the quantity and quality of cultivated land and optimizing land use structure are effective ways to achieve food security in Yangtze River delta." @default.
- W2370798418 created "2016-06-24" @default.
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- W2370798418 date "2006-01-01" @default.
- W2370798418 modified "2023-09-25" @default.
- W2370798418 title "Study on the Relationship of Cultivated Land Change and Food Security in Yangtze River Delta" @default.
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