Conservation of the Northeast Black Soil Area and Chinas Food Security
The northeast black soil area is an important strategic food security base in China.The grain yield is about 85 million tons annual,which accounts for about 1/5 of the total Chinas grain yield,it can also provide 1/3 commodity grain every year.The grain yield shall increase about 20 million tons by the black soil protection,technological innovation and policy control,which will account for 50% of the total increasing grain yield in China,and it maybe become the greatest potential areas of Chinas grain yield increasing in future.However,due to the affect of urbanization,water shortage,and unreasonable tillage,the northeast black soil area faces outstanding problems such as fast non-agficulturalization of cultivated land,intensified degradation of black soil,declining of soil fertility,and serious soil erosion,which maybe has a significant impact on Chinas food security if it can not be protected and controlled.According to the long-term strategic needs of ecological security and Chinas food security,countermeasures and advises were put forward to strengthen the conservation of the northeast black soil area,which are as follows:First,to demarcate the northeast black area as the permanent national food security base,and solid the quantity of cultivated black soil resources; Second,to strengthen the construction of agricultural infrastructure,and accelerate the sustainable use of water and soil resources; Third,to improve the middle-low yielded farmland,and promote the comprehensive grain production ability;Finally,to construct 8 to 10 large grain production bases,and improves grain purchase,storage and transportation and circulation system.
conservation food security countermeasure the northeast black soil area
CHENG Yeqing
Northeast Institute of Geography and Agricultural Ecology,CAS,Changchun,Jilin 130012,China
国际会议
Woekshop on Agricultural Land Use and its Effect in APEC Member Economies(APEC地区农业土地利用及其影响国际研讨会)
北京
英文
208-213
2009-10-19（万方平台首次上网日期，不代表论文的发表时间）