商洛耕地和林地土壤质量分析

A Study on Soil Quality of Farmland and Forest Land in Shangluo

在实验的基础上,结合调查数据,对商洛耕地不同土类土壤质量进行比较,并对林地与耕地土壤质量对比分析。结果显示,农田水稻土和褐土肥力较高,紫色土和黄棕壤肥力较差,潮土和棕壤处于中等水平,总体上耕地土壤质量在不断提高;林地黄棕壤土壤有机质、全氮和碱解氮含量水平高于各土类农田含量水平,达到极显著差异水平(P<0.01)。据此,提出商洛要积极利用水稻土、褐土、潮土和棕壤耕地,发展集约农业;在紫色土和黄棕壤分布区,因地制宜,退耕还林,发展特色林果、水源涵养林和水土保持林及中药材种植。

Based on experiment and information, soil quality of different soil farmland of Shangluo was assessed. Moreover, a comparative study is done on soil quality assessment of farmland and forest land in Shangluo.The results show soil organic matter, total nitrogen and available nitrogen of yellow brown soil in forest land is better than in different soil farmland（P〈O.O1）. Accordingly, it is therefore that Shangluo City should actively make good use of highly fertile paddy soil, cinnamon soil, alluvial soil, brown soil, develop concentrated fanning; in areas of purple soil and yellow brown soil where the soil is not good, flexible fanning reforestration, development of featured fruit trees and water conservation forest, soil and water conservation plantation, and medical plants.