海南省土沉香人工林土壤肥力评价研究  

Evaluation on soil fertility of Aquilaria sinensis plantations in Hainan Province

作　　者：黄馨[1] 刘君昂[1] 周国英[1] 吴毅[1] 徐睿[1] 董文统[1] 陈彧 

机构地区：[1]中南林业科技大学经济林培育与保护教育部重点实验室,湖南长沙410004 [2]海南林业科学研究所,海南海口571100

出　　处：《中南林业科技大学学报》2014年第8期64-68,共5页Journal of Central South University of Forestry & Technology

基　　金：国家林业公益性行业科研专项项目(201304402)

摘　　要：以海南省土沉香人工林为研究对象,对其土壤主要理化性质进行测定,并采用灰色关联分析方法对其土壤肥力进行综合评价。结果表明:海南6个土沉香人工林的土壤均呈酸性,有机质、速效K、有效Zn和有效Cu含量总体都处于中等偏低水平;碱解N除屯昌县屯城镇和定安龙州基地含量较低外,其他样地均处于中等以上水平;有效P除定安龙州基地丰富外,其他样地普遍供应严重不足;各土沉香人工林均存在缺有效Ca和有效Mg,而富含有效Mn和有效Fe的现象。综合肥力评价结果显示:6个土沉香人工林的土壤肥力关联度排序为:定安龙州基地>万宁市兴隆镇>屯昌县南坤镇>保亭金江农场>屯昌县坡心镇>屯昌县屯城县,土壤肥力Ⅲ级(一般)的有4个样地,Ⅳ级(差)的有1个样地,Ⅴ级(极差)的有1个样地,定安龙州基地土沉香人工林的土壤相对最肥沃,屯昌县屯城镇的土壤肥力最差。The study taked Aquilaria sinensis plantations as the research objects and measured their soil chemical characteristics. A grey correlation analysis was used to evaluate the soil fertility status. The results showed that all sites were acidic soil and less fertile with the low organic matter,available K,available Zn and available Cu content. Available N in all the sites except Tuncheng Town in Tunchang County and Longzhou base of Dingan County was of medium level or above. Available P except Longzhou base of Dingan County was gravely insufficient. All the sites were lack of Available Ca and Available Mg,but were rich in Available Mn and Available Fe. Comprehensive fertility evaluation results showed that soil fertility of six types of plantions followed an order of Longzhou base of Dingan County〉 Xinglong Town in Wanning City 〉 Nankun Town in Tunchang County 〉 Jinjiang Farm in Baoting County 〉 Poxin Town in Tunchang County 〉 Tuncheng Town in Tunchang County. Four plots were classed as Ⅲ（average）,one plot was classed as Ⅳ（poor） and the other one was classed as Ⅴ（worse）. The soil of Longzhou base of Dingan County was the most fertile,and the soil fertility of Tuncheng Town in Tunchang County was the poorest.

关 键 词：土沉香 人工林 土壤肥力 灰色关联分析 

分 类 号：S796[农业科学—林木遗传育种]