云南东风农场橡胶园土壤养分空间分布特征  

Spatial Distribution Characteristic of Soil Nutrients in Rubber Plantation of Dongfeng Farm of Yunnan Province

作　　者：黎小清[1] 余凌翔[2] 李春丽[1] 鲁韦昆 

机构地区：[1]云南省热带作物科学研究所,云南景洪666100 [2]云南省气候中心,云南昆明650034

出　　处：《西南农业学报》2015年第1期292-298,共7页Southwest China Journal of Agricultural Sciences

基　　金：国家科技支撑计划(2011BAD30B00);云南省科技创新强省计划(2009AB001);云南省热带作物科技创新体系建设资金(RF2013);云南省科技创新平台建设计划-科研院所技术开发研究专项(2013DC013)

摘　　要：本研究综合运用GIS技术和地统计学的方法,以东风农场橡胶园为研究区域,进行了土壤养分的空间变异分析,并制作了土壤养分的空间分布图。结果表明,土壤有机质、全氮、速效钾和p H平均含量分别为21.91 g/kg、1.43 g/kg、55.90 mg/kg和5.06,属于正常范围;土壤速效磷平均含量为2.39 mg/kg,属偏低范围。土壤养分的空间分布图显示,土壤有机质和全氮的变化情况在空间分布上具有很高的相似性,土壤速效磷含量变化的空间分布以团块为主,整体上没有明显的变化规律,而且图斑分布较零散,土壤速效钾含量变化在空间分布上呈现明显的条带状,取样点土壤的p H值空间变化趋势明显,呈现由东北和西北向中部和西南逐渐变小的趋势。The spatial variability of rubber plantation soil nutrients in Dongfeng Farm was analyzed and its spatial distribution maps were made by a combination of GIS technology and the principle of geostatistics in this study. The results showed that the average contents of soil organic matter（ OM）,total nitrogen（ TN）,available K（ AK） and p H were at normal range,which were 21. 91 g / kg,1. 43 g / kg,55. 90 mg / kg and5. 06,respectively,while the average content of soil available P（ AP） was 1. 43 g / kg that was below normal level. According to the spatial distribution maps of soil nutrients,there was a high similarity in spatial distribution of the changes of soil OM and TN. The spatial distribution of the content change of soil AP appeared to be regiment massive with no obvious regularity,and its patches were scattered. The spatial distribution of the content change of soil AK was obvious zonal distribution. The spatial variation trend of sampled soil p H was clear and becomes smaller gradually from northeast and northwest to central and southwest.

关 键 词：GIS技术 土壤养分 空间分布 地统计学 

分 类 号：S158.9[农业科学—土壤学]