彰武地下水埋深及其对农业生态影响研究

Study on the Impacts of Groundwater Depth and Climate Changes on Agro-ecology in Zhangwu

根据彰武30个水文站点近30年观测资料以及57年的气象观测资料,对该县地下水埋深的变化、影响因素及其对农业生态影响进行了研究。结果表明,彰武县属半干旱半湿润气候,干旱多灾,生态脆弱;特别是近30年,气温升高,降水减少,造成水资源严重减少;地下水位下降,土地盐碱化明显萎缩,土壤沙化严重,草场退化。根据研究结果,提出了相应的解决对策,以便在保护农业生态环境、促进人与自然和谐和可持续发展的方面做出一点贡献。

Using the observation data in 30 years and weather observed data in fifty-seven years at 30 hydrology stations of Zhangwu,the changes and impacts factor of Groundwater depth and its impacts on agro-ecology were studied.The results showed that Zhangwu was a semi-arid sub-humid climate and frequent drought damage and fragile forest ecosystem.Particularly in the last 30 years,an elevated temperature and a reduced precipitation were seriously reduced water resource.Land salinization reduced and soil desertification,grassland degradation significantly increased.According to the research results,some solving countermeasures were proposed,so as to protect the agroecological environment and promote sustainable development between human and nature.