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| 退化红壤重建森林林下植被恢复及其环境影响分析 | |
| 引用本文： | 刘苑秋,罗良兴,杨国平,牛德奎,孙科辉.退化红壤重建森林林下植被恢复及其环境影响分析[J].江西农业大学学报,2004,26(5):695-699. |
| 作者姓名： | 刘苑秋 罗良兴 杨国平 牛德奎 孙科辉 |
| 作者单位： | 1. 江西农业大学,园林与艺术学院,江西,南昌,330045 2. 江西省泰和县,林业局,江西,泰和,343700 3. 江西省弋阳县,林业局,江西,弋阳,334400 4. 江西农业大学,国土资源与环境学院,江西,南昌,330045 |
| 基金项目： | 江西省林业科技攻关项目"低丘人工林林下植被功能及其重建技术研究" |
| 摘 要： | 以地处江西弋阳县和泰和县退化红壤区上不同模式重建的森林为对象,调查分析不同模式重建森林第10年的林下植被状况及土壤物理性状、化学性状及微生物性状指标。结果表明:(1)在严重退化红壤上进行人工重建森林后,林下植物种类和组成发生了较大变化,禾本科草本植物逐渐消退,荫性的蕨类、藓及其它喜林下荫湿环境下的植物种类明显增加,恢复10年后地带性植物种类开始自然更新。(2)在不同模式重建的森林中,其林下植物物种多样性和生物量有一定差异,灌木层植物多样性指数最高的是枫香×马尾松株间混交林模式,最低的是桉树纯林模式;丰富度较高的是晚松纯林和湿地松纯林,较低的是木荷、桉树纯林。(3)林下植被生物量与林分郁闭度、土壤容重、毛管持水量、团聚度、非毛管孔隙度的线性回归关系达显著或极显著水平。林下植被生物量随林分郁闭度、土壤容重的增加而减少,随土壤团聚度、毛管持水量、非毛管孔隙度的增加而增加。 |
| 关 键 词： | 退化红壤 重建森林 林下植被 |
| 文章编号： | 1000-2286(2004)05-0695-05 |
| 修稿时间： | 2004年7月30日 |
Analysis on Recovery of Undergrowth and Effects of Environment of Rehabilitated Forest in Degraded Red Soil Region |
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| LIU Yuan-qiu,LUO Liang-xingYANG Guo-ping,NIU De-kui,SUN Ke-hui.Analysis on Recovery of Undergrowth and Effects of Environment of Rehabilitated Forest in Degraded Red Soil Region[J].Acta Agriculturae Universitis Jiangxiensis,2004,26(5):695-699. | |
| Authors: | LIU Yuan-qiu LUO Liang-xingYANG Guo-ping NIU De-kui SUN Ke-hui |
| Institution: | LIU Yuan-qiu~1,LUO Liang-xing~2YANG Guo-ping~3,NIU De-kui~4,SUN Ke-hui~1 |
| Abstract: | The rehabilitated forest of age 10 in different models in degraded red soil region located in Taihe County and Yiyang County of Jiangxi Province was taken as the object of the study. The state of undergrowth, some character indexes of soil physical and chamical characters and soil microbe were investigated. The results were described as follows:(1) After rehabilitation of the forest in degraded red soil region, species and composition of undergrowth changed. Herbaceous plant graminidea were missing.At the same time,fern, bryophyte and other sciophile species increased, and zonal vegetation species started natural regeneration.(2) The species diversity and biomass of undergrowth were different among different rehabilitated forest. Simpson index and Shannon-Wiener index of mixed forest model of Liquidambar formosana and Pinups massoniana were the highest, that of pure Eucalyptus camaldulensis forest model was the lowest among the models. The species richness of pure Pinus rigida var. serotina forest model and Pinus elliottii forest model were higher than that of pure Schima superba forest model and pure Eucalyptus camaldulensis forest model.(3) The linear regression relations between biomass of undergrowth and canopy density,soil bulk density,capillary moisture capacity, soil aggregate degree and non-capillary pore degree were significant or very significant. The biomass of undergrowth discreased with the increase of canopy density,soil bulk density, and it increased with capillary moisture capacity, soil aggregate degree and non-capillary pore degree. |
| Keywords: | degraded red soil rehabilitated forest undergrowth |
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