南方典型毛竹经营区土壤肥力及其空间特征——以福建省顺昌县毛竹林经营区为例  

Soil Fertility in Typical Moso Bamboo Management Areas and Its Spatial Distribution in South China--Taking Shunchang County,Fujian Province as Example

作　　者：郝振帮 林丽丽 刘健[1] 余坤勇[1] 俞欣妍[1] Hao Zhenbang;Lin Lili;Liu Jian;Yu Kunyong;Yu Xinyan(University Key Lab for Geomatics Technology and Optimize Resources Utilization in Fujian Province,Fujian Agriculture and Forestry University,Fuzhou 350002,P.R.China)

机构地区：[1]3S技术与资源优化利用福建省高等学校重点实验室(福建农林大学),福州350002

出　　处：《东北林业大学学报》2020年第3期79-83,115,共6页Journal of Northeast Forestry University

基　　金：“十三五”国家重点研发计划(2018YFD0600100)。

摘　　要：通过测定顺昌县大干镇2016年59个毛竹监测点的土壤肥力相关指标,运用模糊数学和主成分分析计算各采样点的土壤肥力指数,实现对区域毛竹林地土壤肥力的综合评价,并绘制土壤肥力及相关指标的空间分布图。结果表明:除pH值为弱变异性外,其他的土壤指标均为中等变异;通过主成分分析得出,对毛竹土壤肥力影响较大的指标为有机质质量分数、水解氮质量分数、毛管持水量、田间持水量、土壤密度、土壤含水量和全氮质量分数;研究区有机质、全钾和全氮质量分数较为丰富,全磷质量分数匮乏。土壤肥力总体较好,大多处于中上水平。建议在今后的毛竹经营过程中,注重对磷肥的施用。We analyzed the soil fertility indicators of 59 moso bamboo monitoring points in Dagan Town of Shunchang County.The fuzzy soil mathematics and principal component analysis were used to calculate the soil fertility index of each sampling point,then the soil fertility of moso bamboo in the study area was comprehensively evaluated.And the spatial distribution maps of soil fertility and related indicators were drawn.Except for the weak variability of pH value,other soil indicators belonged to moderate variability.By the principal component analysis,the indicators that had great influence on the soil fertility of moso bamboo involved organic matter,hydrolyzable nitrogen,capillary water capacity,field capacity,soil density,mass water content of soil and total nitrogen.The organic matter,total potassium and total nitrogen in the study area were abundant,but total phosphorus was scarce.Soil fertility in the study area was generally good,mostly at the upper-middle level.In the management of moso bamboo,the application of phosphorus fertilizer should be emphasized.

关 键 词：毛竹 土壤肥力 土壤理化性质 主成分分析 空间分布 

分 类 号：S714.8[农业科学—林学]