利用数字土壤制图技术评价森林立地质量 |
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引用本文: | 徐畅,王德彩,刘倩,杨柳,张志华,何林倩.利用数字土壤制图技术评价森林立地质量[J].土壤通报,2022,53(1):45-55. |
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作者姓名: | 徐畅 王德彩 刘倩 杨柳 张志华 何林倩 |
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作者单位: | 1.河南农业大学林学院,河南 郑州 450002 |
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基金项目: | 国家自然科学面上基金项目(42171058);;河南省科技攻关计划项目(172102110056,192102310184);;河南省高校人文社会科学研究一般项目(2021-ZZJH-160)资助; |
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摘 要: | 目的]为了提升森林立地质量评价的精准性,探讨利用数字土壤制图技术对森林立地质量进行评价,助力精准林业的发展.方法]以济源南山林场为研究区,以地形因子为预测因子,运用模糊C均值聚类方法(FCM算法)对立地评价所需的主要土壤属性进行预测制图,并在利用遥感影像数据获取林地其他立地环境因子分布图的基础上,应用灰色关联度法对...
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关 键 词: | 数字土壤制图 立地质量 3S技术 灰色关联度 |
收稿时间: | 2021-01-18 |
Evaluation of Forest Site Quality Using Digital Soil Mapping |
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Institution: | 1.College of Forestry, Henan Agricultural University, Zhengzhou 450000, China2.College of Information and Management Sciences, Henan Agricultural University, Zhengzhou 450000, China |
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Abstract: | Objective In order to improve the accuracy of forest site quality evaluation and help the development of precision forestry. Method This study takes Jiyuan Nanshan Forest Farm as the study area, takes the topographic factor as the prediction factor, uses the fuzzy c-means clustering method (FCM) to predict and map the main soil attributes required for site evaluation, and applies the grey correlation method to comprehensively evaluate the forest site quality on the basis of obtaining the distribution map of other site environmental factors by using remote sensing image data. Result The results showed that the forest site quality grade was mainly grade 4, and the forest land area rated as grade 4 accounts for 54.38% of the total area, followed by grade 3, accounting for 26.91% . The forest land areas of grade 1, grade 2 and grade 5 were small, accounting for 5.27%, 8.96% and 4.48% , respectively. Conclusion The results showed that using the digital soil mapping technology based on FCM method could obtain a high-precision soil attribute distribution map with fewer sampling points, provide relatively rich soil spatial information for forest site quality evaluation, and is a new way for evaluating forest site quality. |
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