土地复垦项目后评价时点界定研究

Study on Determined Time Point of Land Reclamation Project Post Evaluation

土地复垦是增加耕地面积,提高耕地质量,保持耕地总量动态平衡的一项重要措施。由于土地复垦后耕地质量不能在短期内显现,导致很多矿区土地复垦后土地质量不能满足相应的耕作需求。土地复垦项目后评价时点界定就是对一定时期后土地复垦项目土壤质量进行反馈,对于提高土地复垦质量有非常重要的意义。在综述土壤质量恢复过程相关研究的基础上,通过分析土壤质量恢复的过程,对不同土地复垦方式后评价时点进行了界定。认为疏排法复垦、基塘式复垦、梯田式复垦、充填式复垦、矸石山绿化复垦和露天开采复垦的评价时点分别为4~6 a,5~7 a,5~7 a,6~10 a,10~15 a和10~15 a。

Land reclamation can increase the quantity of cultivated land,raise the quality of cultivated land,and is an important measure of keeping the dynamic balance of total cultivated land.Because the land reclamation quality of cultivated land not appeared in the short term,a lot of land reclamation land quality cannot meet the demand of corresponding.Land reclamation project post evaluation for certain period is that the feedback of land reclamation project after soil quality,it is very important to improve land reclamation quality.In this paper,based on relevant studies on soil quality restoration process,through analyzing the process of soil quality recovery,the different reclamation ways were defined.It was thought that scanty row method reclamation,land reclamation,terrace type related type,filling type reclamation,land reclamation gangue mountain greening reclamation,land reclamation evaluation point opencast respectively for 4～6 a,5～7 a,5～7 a,6～10 a,10～15 a and 10～15 a.