改良剂对空心村复垦耕地土壤性状影响研究进展

Advances in Research on Effects of Improvers on Soil Properties of Reclaimed Cultivated Land in Hollow Village

中国是一个农业大国,基本国情是人多地少、人地矛盾突出,如何解决随着城镇化和工业化发展大量出现的空心村及废弃宅基地所造成的土地资源浪费情况,开展空心村整治,复垦废弃宅基地,提高复垦土地生产力,保护耕地红线,保证区域粮食安全,促进区域社会经济持续发展。由于复垦土壤主要来源于夯实的房屋墙体及院落硬地面,长期缺乏翻耕利用,失去了应有的水、气、热等动力功能,从而导致土壤物理结构遭受破坏、土壤固有功能及特性损失、土壤养分含量较低等问题,复垦后直接用于农业耕作,很难满足农作物生长的需要。本文期望通过研究改良剂对宅基地复垦耕地土壤性状的研究进展,为宅基地复垦耕地的改良研究提供思路和理论支撑,也为类似工程项目的实施提供科学的参考依据。

China is a big agricultural country.The basic national conditions are that there is less land and more people,and the contradiction between people and land is outstanding.How to solve the waste of land resources caused by hollow villages and abandoned residential sites that have appeared in large numbers along with urbanization and industrialization?Rehabilitation of hollow villages and the reclamation of abandoned residential land are of great significance for improving the productivity of reclaimed land,protecting the red line of cultivated land,ensuring regional food security and promoting the sustainable development of regional social economy.Because the reclaimed soil is mainly derived from the sturdy house wall and the hard ground of the courtyard,it lacks the ploughing and utilization for a long time,and loses the proper water,gas,heat and other dynamic functions,resulting in the destruction of the physical structure of the soil,the inherent function and characteristics of the soil.Problems such as loss and low soil nutrient content are directly used for agricultural cultivation after reclamation,and it is difficult to meet the needs of crop growth.This paper hopes to provide research ideas and theoretical support for the improvement of soil properties of reclaimed farmland in homestead by studying the improvement agent,and provide scientific reference for the implementation of similar projects.