摘要:
石漠化综合治理关键技术研发是石漠化综合治理工程的关键步骤.本文根据第一期石漠化治理工程的进展,分析了岩溶水资源特征与开发利用技术、土壤资源维持与质量提升技术、植被恢复与功能提升技术和水—土—植被耦合模式的研发进展和不足,对第二期石漠化综合治理提出了一些建议,认为第二期石漠化综合治理关键技术研发应以“结构一过程—服务”为指导框架,加强岩土组构等地质环境背景、水土过程和石漠化过程以及关键服务功能维持和提升机理的基础研究,加强功能型植被、关键共性和个性技术研发以及关键技术的配套和优化,加大石漠化综合治理关键技术的适用性评价和推广应用,完善流域内生态系统服务主体功能区评估和生态补偿,有效准确的治理石漠化,以促进西南岩溶石漠化地区生态、经济和社会的可持续发展.
Abstract:
The karst area in southwestern China is one of the three largest concentrating karst regions in the world.Meanwhile,it suffers severe environmental problems,such as water shortage,ecological degradation and rocky desertification.In order to address these challenges,China has launched a National Project to control karst rocky desertification in an integrated way.Key technology research and development is the key step in the project of comprehensive treatment to rocky desertification.In this paper,we analyze the development and deficiency of karst water resources utilization technology,soil resources maintenance and quality improvement techniques and vegetation restoration and function upgrade technology in the recent advancement of the project at the first stage.As for the second stage of the project,we suggest that the research should be based on " structure (geological environment background)-process (soil and water conservation process and desertification process)-service (key service function to maintain and upgrade)",to strengthen key commonness and individuality technology research of soil,water and vegetation and key technologies of matching and optimization,to increase the applicability evaluation and application of the rocky desertification key comprehensive technologies,and to perfect the assessment and ecological compensation policy of priority ecosystem services on a basin scale.We hope that our recommendations can promote the balanced and sustainable ecological,economic and social development in the karst rocky desertification areas in southwestern China.
下载: