| For one year, the author, through the on-the-spot survey and consultation of much information, fundamentally understands the history of the development of paddy field biological culture models and issues it is meeting now, uses the scientific methods to analyze and objectively evaluate the comprehensive returns of paddy field biological culture model, and furthers the exploration of the direction of development of paddy field culture in Jiangsu province by the way of reviewing and summarizing the history and experience of development of paddy field culture, which plays a very important present significance to the further realization of "ecological culture".The paper first of all briefly describes the purpose and significance of the studies on paddy field culture, the status of the studies at home and abroad as well as the main purpose, content, method and structure of the studies and the basic conditions of world paddy field culture and history of production development, technology development and status quo of Chinese paddy field culture, as well as carefully details the biological and ecological principles of paddy field culture.The main research part of the paper is about Jiangsu province. Comparison of the history and status quo, models of paddy field culture, and the ecological environment changes are all described in detail. The analysis and comparison of paddy field culture models are the main point of the paper. This paper utilizes much concrete and reliable data from surveys and experiments, applies comparison and dynamic analysis methods to concretely analyze the economic, ecological and social effects of paddy field culture, and describes the causes, criterion and significance of sustainable agriculture which accords to the development direction of world agriculture, by which, analyzes merits and demerits of paddy field culture models.The paper discovers the factors influencing the further development of paddy field... |
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