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一、前言黄淮海平原地处我国温带季风气候区,自然资源优越,农业历史悠久,是我国古老农业文明发源地。几千年来,由于人类活动,人口压力,使自然生态遭到破坏,环境失调,盐碱旱涝等灾害频繁,农业生产严重衰退。近年来,在发展生产过程中,农林牧结构和种植结构不当,自然和生产面貌改变较慢,引起了一系列新的失调,土地资源、水资源、林草植被资源进一步恶化;三料矛盾紧张,有机肥源不足,土壤用养矛盾更加突出,产量、收入较低;化石和生物能源的投入量,难以大幅度增加,物质、能量投放及转化效率不高,各项生产建设也收效不大。然而,黄滩海平原地区却蕴藏着巨大生产潜
I. Preface The Huang-Huai-Hai Plain is located in the temperate monsoon climate zone of China with superior natural resources and a long history of agriculture. It is the birthplace of the ancient agricultural civilization in China. For thousands of years, due to human activities, population pressures, destruction of the natural ecology, environmental disorders, frequent occurrence of droughts and floods and other disasters, agricultural production has suffered a serious recession. In recent years, due to improper structure and planting structure of agriculture, forestry, animal husbandry and animal husbandry, and slow changes in the nature and production landscape, a series of new disorders have been caused in the process of developing production. Land resources, water resources and forest and grassland vegetation resources have further deteriorated. , Insufficient organic fertilizers and contradictions in soil conservation are more prominent, yield and income are lower; input of fossil fuels and bioenergy is hard to increase significantly; material and energy delivery and conversion efficiency are not high; . However, the Huangtanhai Plain contains a huge production potential