Yang Yansheng.Study on Restoration of Biodiversity in Eroded Quaternary Red Clay Region (Ⅱ) Key Technology and Sustainable Development[J].Research of Soil and Water Conservation,1998,5(02):82-86,118.
第四纪红粘土侵蚀区生物多样性恢复重建研究 (Ⅱ)恢复重建关键技术与可持续发展
- Title:
- Study on Restoration of Biodiversity in Eroded Quaternary Red Clay Region (Ⅱ) Key Technology and Sustainable Development
- Keywords:
- biodiversity; key technology; sustainable development
- 摘要:
- 在水土流失区生态系统遭到严重破环，植物稀疏、物种单调、生物种群稀少、群落组合单一。由于水土流失区水土资源条件很差，土壤中有效水分的贮量很低，难以确保一般植物正常越夏的水分要求；土壤养分很低，难以确保一般植物的正常生长繁殖。因此，要实现生物多样性恢复重建目标，必须从研究水土流失区土壤的持水状况开始，研究侵蚀土壤的退化过程和机理；研究植物对水土流失区恶劣环境的适应和筛选适应恶劣环境的植物品种，从而提出严重水土流失区水土保持和农业可持续发展战略。并在此基础上，提出流失区的开发思路，为农业的可持续发展和环境改善提供依据。在水土流失区水土资源恢复重建是实现生物多样性的必要条件和归宿。生物多样性总是同水土保持、水土资源的恢复重建密不可分，而植物群落多元化，则是生物多样性的前提条件。
- Abstract:
- Ecological system was destroyed seriously in eroded region with spare vegetation coverage,single varieties,communities and community unities of plants. Owing to loss of soil and water.the conditions of water and soil resources are very poor.with a low available soil resources are very poor,with a low available soil moisture which can not support growth of plants normally in summer and with a low soil nutrients which enable plant to can not grow, For restoration of biodiversity,the moisture status of soil,the mechanism and process of soil deterioration by erosion must be researched,some plant varieties suitable to deteriorated environment must be selected.and finally it is possible to put forward the sustainable development strategy of soil alld water conservation and agriculture. On the basis,the plan for agriculture development and environment improvement in the eroded area could be realized. The restoration of water and soil reources in eroded area is a enssential condition and goal for achieving biodiversity. The biodiversity is always close tied in the whole with conservation and restoration of soil and water resources and the pluralization of plant community is the precondition accomplishing biodiversity.
参考文献/References:
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2 杨艳生.第四纪红粘土区侵蚀土壤退化机理研究.水土保持研究, 1997(1)
3 杨艳生.水土保持优势植物生长的分析研究.水土保持研究.1996(4)
4 杨艳生.我国水土流失红壤区的生物多样性及持续农业.水土保持持续发展, 中国林业
5 杨艳生.水土保持与持续发展.南昌水专学报, 1995(14)
6 杨艳生, 刘柏根等.南方水土流失区开发治理的思路.长江流域资源与环境, 1996(1)
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备注/Memo
收稿日期:1998-3-10;改回日期:。
基金项目:中国科学院红壤生态实验站资助