章古台沙地2种典型生态修复模式土壤养分分析

Soil nutrient analysis with Zhang gutai sand 2 kinds of typical ecologicalrepair patterns

针对人口的急剧增长,水资源匮乏及土地沙化等自然灾害加剧土地生产力下降问题。通过对章古台沙地2种典型生态修复模式即林果药、林果草模式土壤生态系统演变效果的定点观测研究,通过野外观测和室内试验分析不同生态修复模式下对土壤化学性质和土壤养分的影响,意在更好的说明两种生态修复模式的土壤改良效果。结果表明:林果草生态修复模式土壤改良效果好于林果药模式,林果草模式土壤含氮量最高。

In view of the rapid growth of population, water shortage and the desertification all increased the decline in land productivity. Through the research on the two ecology repair patterns which were arbors-fruiter-medicinal herbs and arbors-fruiter-forages,it is concluded that the study on soil ecosystem effects of fixed-point observation. The chemical properties of soil and the changes in soil nutrients were analyzed through the field observation and laboratory test, and then a better interpretation about the effects of soil improvement were found in the two ecological restoration models. The results showe that： the effects of soil improvement of the model of arbors-fruiter-forages was better than the model of arbors-fruiter-medicinal herbs. The maximum amount of soil nitrogen was the model of arbors-fruiter-forages.