冀东地区褐土养分资源评价与管理对策  

Evaluation and Management Countermeasures of Nutrient Resources in Cinnamon Soil in Eastern Hebei Province

作　　者：韩志卿[1] 韩志才 张电学[1] 吴素霞[1] 常连生[1] 谢新宇[1] 杨会民[1] 

机构地区：[1]河北科技师范学院生命科技学院,河北昌黎066600 [2]河北省玉田县银河中学,河北玉田064100

出　　处：《中国农学通报》2011年第32期236-241,共6页Chinese Agricultural Science Bulletin

基　　金：科技部"十一五"科技支撑计划重大项目"粮食丰产工程"子课题"冀东褐土养分资源评价及供肥机制与资源高效利用型施肥技术研究"(2006BAD02A08-9);河北省科技厅"十一五"科技攻关计划项目"冀东不同施肥制度下褐土肥力演化及其机制与合理施肥技术研究"(06220103D-5);河北科技师范学院博士基金资助项目"不同施肥制度下冀东褐土微团聚体养分肥力演变与土壤供肥机制研究"(2007YB011)

摘　　要：为了揭示冀东褐土养分肥力特征,指导土壤养分资源的科学管理和合理施肥,采用田间典型样品调查、室内分析相结合的研究方法,通过主成分分析和聚类分析等数学手段,对冀东地区褐土养分资源的综合评价指标与管理对策进行研究。结果表明,冀东褐土养分资源可以采用氮素养分供应强度和生物学活性、土壤供钾潜力、土壤有机质积累强度为主体的综合指标进行评价,养分资源的特点总体表现为有机碳、全氮含量较低,钾素长期供应潜力下降,全磷和有效磷含量较高。施肥和肥力管理原则应首先注重有机肥(物)料的施用以保持和提高土壤有机碳和全氮水平,其次为增强土壤供钾潜力,化学肥料的施用适宜于N、K、P顺序。动态聚类分析表明,冀东褐土养分肥力水平可分为5类,在生产实践中应根据各类肥力特点,有针对性地制定土壤养分肥力管理方案,以达到养分资源的高效利用目的。In order to reveal nutrient fertility characteristics in cinnamon soil in eastern Hebei Province and guide scientific management of soil nutrient resources and rational fertilization,field typical samples investigation combination with indoor analysis research methods,principal components analysis and cluster analysis were applied in this paper to study the comprehensive evaluation index and management countermeasures of nutrient resource in cinnamon soil.The results showed that：cinnamon soil nutrient resources could use nitrogen nutrient supply strength and biological activities,soil potassium potential,soil organic matter accumulation strength as the main body of the comprehensive index to evaluate.The characteristics of the nutrient resources totally showed that,organic carbon,total nitrogen content was low,long-term potassium supply potential declined,while total phosphorus and effective phosphorus content was high.Fertilization and fertility management should first pay attention to organic fertilizer （material） to keep and improve soil organic carbon and total nitrogen level,next to enhance soil potassium potential.Chemical fertilizer application was suitable for N,K,P in order.Dynamic clustering analysis showed that,nutrients fertility levels of cinnamon soil could be divided into 5 kinds,in the production practice should be based on the characteristics of all kinds of fertility,formulated target-oriented soil nutrient fertility management plan,in order to use nutrient resources efficiently.

关 键 词：褐土 养分资源 主成分分析 聚类分析 评价 管理对策 

分 类 号：S158.3[农业科学—土壤学]