摘要
稻蟹共生模式作为我国特色稻田种养模式,依靠生物之间的互惠、生物之间稻田资源的互补利用,在维持土壤肥力和水稻产量、提高氮素利用率以及控制病虫草害等方面发挥了重要作用.本文主要围绕水稻生长、水质、土壤环境、系统氮素损失、生物多样性五个方面,系统总结与分析目前我国稻蟹共生模式对稻田生态系统的影响,得到的主要结论是稻蟹共生模式能够稳定或提高水稻产量,提升稻米品质,对稻田生态环境的影响结论不一.本研究可为稻蟹共生模式的深入开展和推广提供参考.
Abstract
The rice-crab coculture model,as a distinctive rice field cultivation and breeding mode in Chi-na,relies on mutual benefits between species and complementary utilization of resources in rice field.It plays a significant role in maintaining soil fertility and rice yield,improving nitrogen use efficiency,and controlling pests,diseases,and weeds.In this paper,we mainly summarizes and analyzes the impact of the rice-crab coculture model on rice field ecosystems from five aspects,rice growth,water quality,soil environment,system nitrogen loss and biodiversity.The main conclusion is that the rice-crab coculture model can stabilize or increase rice yield and improve rice quality although its impact on the rice field ec-ological environment is complex.Our findings provided a reference for the in-depth development and promotion of rice-crab co-culture model.
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