农地整理工程对农田生态的影响及其生态环境保育型模式设计

Influence of Farmland Consolidation Engineering on Farmland Ecology and Its Model Design of Eco-environmental Care

摘要: 不适当的农地整理工程措施对土壤性状、生物多样性、生态系统稳定性有一定的负面影响，它使土壤中速效磷、速效钾、活性有机质下降，土壤微生物数量减少，农田生物栖息地环境退化，而且使农业生态系统的缓冲和补偿能力、抵御灾害能力及适应环境能力下降。该文提出了生态环境保育型农地整理结构、田间道路和河渠沟的模式设计方法。
- 农地整理 /
- 农田生态 /
- 生态环境保育型 /
- 模式设计
Abstract: It has been shown that unsuitable farmland consolidation engineering has a negative influence on soil characteristics, biological diversity and stability of ecological system. It does not only cause the decline of available phosphorus, available potassium and active organic matter in soil, the decrease in soil microbes, and environmental degradation of biological habitat, but also causes the decline of buffer capacity, compensation ability and resistance disaster ability of agricultural ecological system. Therefore the methods of eco-environmental care design in farmland consolidation structure, road, irrigation canals and ditches were put forward.
- farmland consolidation /
- farmland ecology /
- eco-environmental care /
- model design