摘要
以安徽省不同地区水稻土为研究对象,采集了11个剖面共43个土壤样品,测定其基本理化性质并建模评价其肥力质量。结果表明:根据中国土壤系统分类法,安徽水稻土主要是铁聚水耕人为土。土壤大体呈酸性,pH5.0~6.5,土壤有机质和氮素含量等相对较低,表层土壤有机质、全氮、碱解氮平均含量为23.65 g/kg、1.44 g/kg、127.29 mg/kg,土壤质地主要是粉砂壤土。基于改进层次分析法的模糊综合评价模型结果显示,安徽稻田表层土壤肥力质量指数FI普遍介于0.7~0.8,肥力质量大体处于良好水平,且土壤肥力质量与土壤有机质、土壤全氮和碱解氮含量呈现显著的正相关。
In total 43 horizon samples were collected from 11 paddy soil profiles in different areas in Anhui province, the basic physical and chemical properties were analyzed, and then a model was established to evaluate the fertility quality. The results showed that most paddy soils in Anhui Province are belonging to Fe-accumuli-stagnic Anthrosols according to the Chinese Soil Taxonomy. On the whole, the soils appear to be acidic, with pH value is roughly between 5.0-6.5, the contents of organic matter and nitrogen are relatively low, the average contents of organic matter, total nitrogen and available nitrogen in plough soil are 23.65 g/kg, 1.44 g/kg and 127.29 mg/kg respectively, and the textures of majority of the soils are silt loam. The fuzzy comprehensive evaluation model based on the improved analytic hierarchy process（AHP） showed that the plough soil fertility index FI is generally between 0.7-0.8, which indicate the fertility quality is in good level, and there are significant positive correlations between soil fertility and the contents of soil organic matter, total nitrogen and available nitrogen.
作者
戴士祥
任文杰
滕应
陈未
马文亭
黄阳
DAI Shixiang1,2, REN Wenjie1, TENG Ying1,2, CHEN Wei1, MA Wenting1, HUANG Yang1(1 Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; 2 University of Chinese Aeademy of Sciences, Beijing 100049, Chin)
出处
《土壤》
CAS
CSCD
北大核心
2018年第1期66-72,共7页
Soils
基金
科技基础性工作专项项目(2015FY110700)资助
关键词
安徽
水稻土
改进层次分析法
模糊综合评价
肥力质量
Anhui
Paddy soil
Improved analytical hierarchy process
Fuzzy comprehensive evaluation
Fertility quality
