黑木相思家系适地适树品种综合评价  

Comprehensive Evaluation of Suitable Land and Tree Varieties of Acacia melanoxylon Family

作　　者：赵玥桥 黄晓霞[1] 张露月 高文晶 程诺 丁国昌[2] 赖日文[1] ZHAO Yue-qiao;HUANG Xiao-xia;ZHANG Lu-yue;GAO Wen-jing;CHENG Nuo;DING Guo-chang;LAI Ri-wen(Forestry College,Fujian Agriculture and Forestry University,Fuzhou 350002,Fujian China;College of Arts&Landscape Architecture,Fujian Agriculture and Forestry University,Fuzhou 350002,Fujian China)

机构地区：[1]福建农林大学林学院,福建福州350002 [2]福建农林大学艺术园林学院,福建福州350002

出　　处：《林业科学研究》2024年第1期159-170,共12页Forest Research

基　　金：福建农林大学林学高峰学科建设项目(72202200205)区市级;福建农林大学科技发展基金“城市绿化乔木降温成效及树种配置”(KHF190017)区市级。

摘　　要：[目的]为选出适宜南方山地的黑木相思家系,揭示黑木相思长势土壤养分的空间分异规律与地形变化的关系。[方法]本文以杉木采伐迹地上营造的15年生7个黑木相思家系(M1~M7)为研究对象,采用经典统计学、描述性统计、地统计学方法和GIS技术,研究了7个黑木相思家系分别在不同坡位的土壤理化性质的变化规律和土壤养分的空间分布,并通过因子分析法和模糊评价法对7个黑木相思家系进行综合评价选优。[结果]7个黑木相思家系的理化性质在不同坡位的含量大多表现为下坡位>中坡位>上坡位,下坡位显著高于其他坡位;家系间土壤结构和养分含量均表现出M7、M6和M5较好;研究区各养分含量总体呈块状或条带状分布,呈现从东北和西北方向往南方向递增的趋势。[结论]综合评价值在上下坡位黑木相思家系M7值最高,其生长对土壤理化性质的改良效果最佳,在中坡位黑木相思家系M6最佳。研究结果对南方山地适地适品种和可持续发展研究具有参考价值,可用于黑木相思人工林经营管理实践中。[Objective]To select suitable Acacia melanoxylon lines in southern mountains and to reveal the relationship between the spatial variation pattern of soil nutrients and topographic changes in Acacia melanoxylon growth.[Method]In this paper,based on seven 15-year-old Acacia melanoxylon lines(M1~M7)created on cedar logging sites,classical statistics,descriptive statistics,geostatistical methods and GIS technology were used to study the variation patterns of soil physical and chemical properties and spatial distribution of soil nutrients of seven Acacia melanoxylon lines at different slope positions.The seven Acacia melanoxylon lines were evaluated and selected by factor analysis and fuzzy evaluation method.[Result]The physical and chemical properties of the seven Acacia melanoxylon lineages in the lower slope were the largest,followed by middle slope and upper slope,and those in the lower slope was significantly higher than those in the other slopes;the soil structure and nutrient contents in the M7 stands in were the best,followed by M6 and M5;the nutrient contents in the study area were generally distributed in blocks or strips,showing an increasing trend from northeast and northwest to south.[Conclusion]The comprehensive evaluation value is the highest in the upper and lower slope of Acacia melanoxylon family M7,and its growth has the best effect on the improvement of soil physical and chemical properties,and in the middle slope of Acacia melanoxylon family M6.The results of the study are of reference value for the study of land-appropriate species and sustainable development in southern mountainous areas,and can be used in the management practice of Acacia melanoxylon plantations.

关 键 词：黑木相思家系 林木生长 土壤理化性质 空间异质性 综合评价 

分 类 号：S771.8[农业科学—森林工程]