论文部分内容阅读
农业生产对长江三角洲农业环境的影响,一直是社会广泛关注的焦点。水稻种植是长江三角洲农业生产的主要方式。以江苏省为例,在田间试验、农户调查和文献收集的基础上,分析了该省主要生态稻作模式的技术特征及其环境和经济效应。调查和分析结果显示:(1)江苏省生态稻作主要有稻鸭共作型(丹阳)、环境友好型(吴江)和沼气复合型(淮阴)三种典型模式;(2)这三种稻作模式在土壤肥力、生态环境和经济效益上存在一定的差异,但均显著高于当地常规的集约化稻作模式。为了进一步促进该区生态稻作模式的发展,以有效的方式减轻长江三角洲地区的农业环境问题,文章就配套政策方面提出了一些建设性建议。
The impact of agricultural production on the agricultural environment in the Yangtze River Delta has been the focus of widespread concern in the society. Rice cultivation is the main mode of agricultural production in the Yangtze River Delta. Taking Jiangsu Province as an example, on the basis of field experiments, household surveys and literature collection, the technical characteristics of the main eco-rice cropping patterns and their environmental and economic effects in the province were analyzed. The results of investigation and analysis show that: (1) There are three typical modes of ecological rice cultivation in Jiangsu Province: rice-duck co-production (Danyang), environment-friendly (Wujiang) and biogas (Huaiyin) There were some differences in soil fertility, ecological environment and economic benefits between the two modes, but all of them were significantly higher than the conventional intensified rice cultivation mode in the region. In order to further promote the development of ecological rice pattern in this area and reduce the agricultural environment in the Yangtze River Delta in an effective way, some constructive suggestions are put forward in terms of supporting policies.