沼气生态工程的土壤改良效应分析

Study on Effects of Soil Improvement by Biogas Ecological Engineering

针对红壤丘陵岗地开发利用中存在的重用轻养现象,以江西省上高南方果园科研示范基地为例,从系统分析的角度,统计分析了在红壤丘陵岗地开发利用中通过建立循环经济系统,实施沼气生态工程建设对提高土壤有机质含量的效应。研究表明,通过绿肥套种可以明显提高土壤有机质；而开展沼气工程,施用沼肥对果园土壤有机质含量的提高,具有十分显著的促进作用,可以在相对较短的时间,较大程度地提高土壤有机质含量。

There is a phenomenon of intense utilization with less maintenance in the development and utilization of the low hillocks in the south red earth region. Taking the South Scientific Demonstration Base of Fruit Industry in Shanggao, Jiangxi Province as an example, we analyzed effects of circulated economical system establishment and biogas ecological engineering construction to improve soil organic matter of the low hillocks in the region. Our study illustrates that interplant green manure may remarkably increase soil organic matter content, and application of biogas fertilizer may greatly improve soil organic matter in a relatively short time.