摘要
为评价淮河流域典型高潜水位耕地的土壤养分特征及水平,为高潜水位耕地的可持续发展提供科学的理论依据和参考,以安徽省淮南市毛集实验区焦岗湖镇孙台村耕地作为研究对象,选取了容重、pH、阳离子交换量、有机质、碱解氮、有效磷、速效钾、全氮、全磷、全钾和水溶性盐分等11项指标,运用灰色关联度分析方法对土壤养分特征及水平等级进行评价。孙台村耕地土壤pH值以弱碱性为主,容重呈偏紧及以上水平,土壤质地整体上属于粉砂质壤土。对照全国第二次土壤普查养分分级标准分析,有机质含量整体上呈4级较缺乏水平。土壤碱解氮的含量整体上呈5级缺乏水平,速效钾的含量整体上呈1级丰富水平,土壤有效磷的含量整体上呈4级较缺乏水平,土壤中全氮含量整体上呈3级适量水平,土壤中全磷含量呈6级非常贫乏水平,土壤中全钾含量整体上的土壤呈2级丰富水平。利用灰色关联度综合分析评价孙台村耕地土壤养分质量水平,整体呈现耕地养分水平Ⅱ级(良)和Ⅲ级(一般)水平,空间分布上Ⅱ级(良)主要集中于孙台村耕地的中部地区。本研究为高潜水位耕地的可持续发展提供科学的理论依据和参考。
The evaluation of soil nutrient characteristics and grades of typical cultivated land with high groundwater level in Huaihe River Basin may provide scientific theoretical basis and reference for the sustainable development of cultivated land with high groundwater level.By taking the cultivated land of Suntai Village,Jiaoganghu Town,Maoji Experimental District,Huainan City,Anhui Province as the research object,the indexes were used such as bulk density,pH,cation exchange capacity,organic matter,alkaline hydrolysis nitrogen,available phosphorus,available potassium,total nitrogen,total phosphorus,total potassium and water-soluble salt to evaluate the soil nutrient characteristics and level grades of the experimental area with the grey correlation analysis.The result showed that the soil pH value of the cultivated land in Suntai Village was mainly weak alkaline,the bulk density tight and above and the soil texture of silty loam as a whole.According to the analysis of the nutrient grading standard of the second national soil survey,the overall organic matter content in the soil was at a relatively deficiency level of grade 4,the content of alkaline hydrolyzable nitrogen generally at a deficiency level of 5,the content of available potassium generally at a rich level of 1,the content of available phosphorus in the soil generally at a deficiency level of 4,the total nitrogen content generally at an appropriate level of 3,the total phosphorus content at a poor level of 6 and the total potassium content at a rich level of 2 on the whole.With the analysis and evaluation on the soil nutrient quality level of the cultivated land in Suntai Village by the gray correlation degree,the overall nutrient was at a level II(good),which was mainly concentrated in the central area of cultivated land in spatial distribution,and level III(general).
作者
郑永红
陈芳玲
张治国
邓永强
方超
张致林
ZHENG Yonghong;CHEN Fangling;ZHANG Zhiguo;DENG Yongqiang;FANG Chao;ZHANG Zhilin(School of Earth and Environment,Anhui University of Science and Technology,HuainanAnhui 232001,China;Anhui Engineering Laboratory for Comprehensive Utilization of Water and Soil Resources and Ecological Protection in Mining Area with High Groundwater Level,Huainan Anhui 232001,China;National Engineering Laboratory of Coal Mine Ecological Environment Protection,Huainan Mining(Group)Co.,Ltd.Huainan Anhui 232001,China)
出处
《安徽理工大学学报（自然科学版）》
CAS
2022年第2期1-9,共9页
Journal of Anhui University of Science and Technology:Natural Science
基金
国家自然科学基金资助项目(51904014)
国家重点研发计划“固废资源化”重点专项基金资助(2020YFC1908601)
安徽省博士后基金资助项目(2019B337)
合肥综合性国家科学中心能源研究院项目(21KZS217)
安徽理工大学2021年研究生创新创业基金资助项目(2021CX2004)。
关键词
淮河流域
高潜水位
土壤
养分
灰色关联度
Huaihe River Basin
high groundwater level
soil
nutrients
grey correlation degree
