5种材料台埂处理措施在山坡地农业开发应用中减流减沙效果对比研究

Comparative Study on the Effect of Flow and Sediment Reduction in the Application of 5 Materials in Terrace Ridge Treatment Measures during the Hillside Agricultural Land Development

本文通过在长汀县罗地村建立标准径流小区模拟山坡地农业开垦种植,并分别采用植生袋(带草籽)、植生袋(不带草籽)、聚丙烯生态袋、生态砖、土埂5种材料进行台埂处理,以无埂措施为对照,开展减流减沙效果对比研究,结果表明:聚丙烯生态袋和生态砖台埂措施保水保土效果要总体好于其他材料台埂措施,相对于无埂措施年平均可减少径流量36.43%、28.17%,减少土壤流失量68.63%、65.93%;聚丙烯生态袋由于使用年限长、成本低且较容易施工,是山坡地农业开发应用中理想的筑埂材料。研究结果可为我省传统的山坡地农业开发和坡耕地水土流失治理制定相对科学的水土保持措施技术规范和标准提供依据。

A standard runoff plot was established in Luodi Village,Changting County to simulate the agricultural reclamation and planting on hillside.Five materials were used for platform ridge treatment,including planting bag(with grass seed),planting bag(without grass seed),polypropylene ecological bag,ecological brick and soil ridge.Compared with the measures without ridge,it was carried out the comparative study on the effect of runoff and sediment reduction.The results show that the soil and water conservation effect of platform ridge measures by using the polypropylene ecological bag and ecological brick is generally better than that of platform ridge measures by using other materials.Compared with no ridge measures,the annual average runoff platform ridge measures by using the polypropylene ecological bag and ecological brick can be reduced by 36.43%and 28.17%,respectively,and the amount of soil loss under platform ridge measures by using the polypropylene ecological bag and ecological brick can be reduced by 68.63%and 65.93%,respectively.Polypropylene ecological bag is an ideal ridge building material for agricultural development on the hillside because of its long service life,low cost and easy construction.The results can provide a basis for formulating the relatively scientific technical specifications and standards of soil and water conservation measures in the fields of the traditional agricultural development of hillside land and the control of soil and water loss of hillside farmland in Fujian Province.