摘要
针对传统的踩踏对土壤质量影响研究方法中存在的潜变量之间拟合指数过低的问题,本文提出基于认知行为模型的踩踏对土壤质量影响研究。利用认知行为模型确定踩踏行为等级,获得踩踏等级得分,采用5点采样法采集土壤样品,测定土壤理化因子,将理化因子设置为土壤质量指标,计算其隶属度及极限值,利用主成分分析法获得指标权重,将踩踏等级得分与指标隶属度及指标权重相结合,计算土壤质量指数,根据指数的大小判断踩踏对土壤质量影响程度。实验结果表明:与传统的研究方法相比,设计的基于认知行为模型的踩踏对土壤质量影响研究方法潜变量之间的拟合指数较高,该方法适合应用在踩踏对土壤质量影响研究中。
Aiming at the problem that the fitting index between latent variables is too low in the traditional research method of the impact of trample on soil quality, a study on the impact of trample on soil quality based on cognitive behavior model is proposed.Use the cognitive behavior model to determine the stepping behavior level, get the stepping level score, use a5-point sampling method to collect soil samples, determine the soil physical and chemical factors, set the physical and chemical factors as soil quality indicators, calculate their membership and limit values, and use principal component analysis The method obtains the index weight, combines the score of the treading level with the index membership and the weight of the index, calculates the soil quality index, and judges the degree of impact of the treading on the soil quality according to the size of the index. The experimental results show that compared with the traditional research methods, the design method based on cognitive behavior model of stomping on soil quality has a higher fitting index between latent variables, and this method is suitable for the application of stomping on soil quality.
作者
邓雪倩
王洪桥
DENG Xue-qian;WANG Hong-qiao(College of Traditional Chinese Medicine/Jilin Agricultural University,Changchun 130118,China;School of Economics and Management/Jilin Agricultural University,Changchun 130118,China)
出处
《山东农业大学学报（自然科学版）》
北大核心
2020年第1期46-49,共4页
Journal of Shandong Agricultural University：Natural Science Edition
基金
吉林省教育厅“十三五”科学技术项目(JJHK20181010KJ)
吉林省教育科学项目(GH170259)。
关键词
认知行为模型
踩踏
土壤质量评价
Cognitive behavior model
trample
soil quality assessment
