基于耕地地力的河南省耕地承载力研究

Studies on the Carrying Capacity of Cultivated Land in Henan Province Based on the Cultivated Land Fertility

以耕地地力为基础 ,根据粮食单产、种植面积、粮经比和复种指数对河南省粮食产量和耕地资源承载力进行了预测和分析 ,得出不同人口增长模式下的河南省 2 0 1 0年和 2 0 30年耕地资源人口承载力。在粮食产量、人口及人均消费保持现有增长水平及耕地数量持续减少的情况下 ,通过农业结构调整 ,加大科技和资金投入 ,提高耕地地力等 ,河南省粮食生产总量完全能够满足社会经济发展需求 ,并有一定剩余。

Based on the cultivated land fertility, according to grain yield,the planting coverage, the ratio of the grain crops to industrial crops and multiple crop index,the cultivated land population carrying capacity in 2010 and 2030 at the different population increasing modes were attained by predicting and analysing the food produce and the cultivated land carrying capacity.On the condition of the present increasing level in the food production,population and the per capita consumption and the sustainable decrease of the cultivated land, through optimizing the planting structure,increasing up the investment of technology and capital,enhancing the cultivated land fertility, the total food yield in Henan province can completely satisfy the need of the economic and social development and have some surplus as well.