HOU Yong-ping,DUAN Chang-qun,HE Feng.Study of Soil Fertility and Soil Water in the Vegetation of Different Restoration Measures[J].Research of Soil and Water Conservation,2005,12(01):49-53.
滇中高原不同植被恢复条件下土壤肥力和水分特征研究
- Title:
- Study of Soil Fertility and Soil Water in the Vegetation of Different Restoration Measures
- Keywords:
- central Yunnan plateau; plant community; soil fertility and water; ecological rehabilitation
- 分类号:
- S152.7;S158
- 摘要:
- 在干湿不同季节分析滇中高原不同恢复措施下群落的土壤肥力条件和土壤水分条件，结果表明，无论干湿季节，土壤养分含量在不同类型的植被中由优到劣依次为次生常绿阔叶林、针阔混交林、云南松林、桉树林、荒坡灌草丛；各种植被对0～30cm的剖面层次的土壤肥力影响最大，自然恢复更新的植物群落对0～30cm土层的肥力影响显著优于人工林，其变化幅度也高于人工林；自然恢复更新的植物群落在30～60cm、60～90cm土层中，营养物质含量较低，尤其在雨季这些深层土壤营养物质的含量更小。次生常绿阔叶林的持水能力最强，桉树林的持水保水能力最低。次生常绿阔叶林和针阔混交林土壤养分和水分在干湿季节间变化幅度较小，而桉树林和云南松林变化幅度较大。讨论认为雨季补充营养可以显著提高植被恢复的速度，生态建设中尽可能以自然演替恢复更新为主。
- Abstract:
- The soil fertility and soil water of different restoration vegetation on central Yunnan Plateau in the dry and rainy season were studied.Results were as follows.(1)Whether dry season or rainy season,the soil nutrition of different vegetations were semi-humid evergreen broad-leaved forest>theropencedrymion>needle-leaved forest>culture community of Eucalyptus robustaabandoned wooden land;(2)vegetation had great influence on the fertility of 0～30 cm soil profile,and the natural restored plant communities were better than the artificial communities;(3)the natural restored plant communities had less nutrition,especially in the rainy season;(4)the semi-humid evergreen broad-leaved forest had the greatest retentive water capability,and the culture community of Eucalyptus robusta had the lest water capability;(5)the soil nutrient and soil water at dry and rainy season of semi-humid evergreen broad-leaved forest and theropencedrymion had less variation,but the needle-leaved forest and the culture community of Eucalyptus robusta had greater variation.It was suggested that to supply proper nutrition can accelerate vegetation restoration and natural restoration should be the main measure in the ecological construction.
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备注/Memo
收稿日期:2004-6-9。
基金项目:国家基础科学研究重大计划（2003CB145103-04）；国家攀登计划特别支持项目（2000-026）；云南自然科学基金重点项目（2000C0001P）
作者简介:侯永平（1979- ），男，硕士生，研究方向为恢复生态学.