摘要
以贵州省兴仁县回龙镇无籽刺梨种植基地为研究对象,综合考虑表征土壤物理、化学和生物学性质的16个土壤指标,利用数理统计方法确定最小数据集并评价土壤质量,同时根据划分样方所在坡位的不同,对其相应的土壤质量评价结果进行了对比分析。结果表明:(1)研究区土壤质量评价适用的最小数据集(MDS)包括土壤有机质、pH值、全钾、水解氮、真菌和磷酸酶;(2)研究区上坡位、中坡位和下坡位土壤质量属于中等及以下水平,SQI依次为0.544,0.408,0.503;(3)影响该地区土壤质量的重要指标为土壤有机质和土壤真菌数量。
Soil erosion and rock-desertification are severe in Guizhou. The planting base of Rosa sterillis which is located in Huilong Town, Xinren County, Southwest of Guizhou Province was taken as the study site. Mathematical statistics method was utilized to determine minimum data sets and soil qualities were also eval uated based on 16 soil physical, chemical and biological property indicators. According to quadrats on differ- ent slope positions, the comparative analysis of corresponding soil qualitiy evaluation results was carried out. The results showed that： （1） the minimum data sets of soil quality assessment in 16 research areas included soil organic matter, pH Value, total potassium, hydrolyzable nitrogen and phosphatase; （2） the soil qualities of upper slope, the middle slope and lower slope were determined at intermediate and lower levels, soil quality indices were 0. 544, 0. 409 and 0. 503, respectively; （3） the important indexes affecting soil quality were soil organic matter and soil fungi amount.
出处
《水土保持研究》
CSCD
北大核心
2017年第1期54-60,共7页
Research of Soil and Water Conservation
基金
贵州师范大学研究生创新基金(研创2015[19])
贵州师范大学博士科研基金
贵州省农业科技攻关项目(黔科合NY字[2015]3022-1号)
关键词
土壤质量评价
最小数据集
喀斯特山区
坡地
无籽刺梨
soil quality assessment
minimum data sets （MDS）
typical karst mountain region
slope
Rosa sterilis S. D. Shi
