断陷盆地生态环境地质分异及石漠化演变机理的研究途径

doi:10.11867/j.issn.1001-8166.2017.09.0953

地球科学进展

2017, Vol. 32

Issue (9): 899-907 DOI: 10.11867/j.issn.1001-8166.2017.09.0953

国家重点研发计划进展

断陷盆地生态环境地质分异及石漠化演变机理的研究途径

李强^{1, 2}, 蒲俊兵^{1, 2}, 黄妮⁵, 杜红梅³, 祁向坤⁴, 王力⁵, 杨慧^{1, 2}

1.国土资源部/广西岩溶动力学重点实验室,中国地质科学院岩溶地质研究所,广西桂林 541004;
2.联合国教科文组织国际岩溶研究中心,广西桂林 541004;
3.上海交通大学农业与生物学院,上海 200240;
4.中国科学院亚热带农业生态研究所,湖南长沙 410125;
5.中国科学院遥感与数字地球研究所,北京 100094

A Research Approach for Ecological, Environmental and Geological Differentiation of Rocky Desertification and Its Driving Mechanism in Karst Graben Basin

Li Qiang^{1, 2}, Pu Junbing^{1, 2}, Huang Ni⁵, Du Hongmei³, Qi Xiangkun⁴, Wang Li⁵, Yang Hui^{1, 2}

1.Karst Dynamics Laboratory, MLY & GZAR, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China;
2.International Research Center on Karst Under the Auspices of UNESCO, Guilin 541004, China;
3.School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China;
4.Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;
5.Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China

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摘要： 针对2016年度国家重点研发计划项目“喀斯特断陷盆地石漠化演变及综合治理技术与示范”之课题一“断陷盆地生态环境地质分异及石漠化演变机理”,旨在揭示喀斯特断陷盆地碳、氮、钙、水在生态系统中的迁移规律,阐明生态系统演替和石漠化演变过程及驱动机制。为此,选择蒙自盆地南洞地下河流域和泸西小江喀斯特盆地流域石漠化治理示范区,在对岩性、地形、地貌、生态水文、植被、社会经济、气象、土壤等因子分异特征研究的基础上,利用径流小区定位观测、同位素技术、生态化学计量学和模型模拟预测等技术手段,定量刻画典型流域植被与水文过程的交互作用,确立流域生态需水关键期及需水量,明确植被生态水文耦合过程对碳、氮、钙、水等物质传输的影响,评价生态系统碳固持能力,获取影响生态系统演替和石漠化演变过程的关键控制因素,预测生态系统演替和石漠化演变趋势,进而为喀斯特断陷盆地石漠化区面向生态的水资源合理配置和生态功能恢复提供理论依据。

关键词： 石漠化; 断陷盆地; 生态环境地质分异

Abstract: According to the national key research and development program of China “Evolution, integrating treatment and technological demonstration of rocky desertification in karst graben basin”, the task of “ecological, environmental and geological differentiation of rocky desertification and its driving mechanism in karst graben basin” was to reveal the migration of carbon, nitrogen, calcium and water, as well as evolution process and driving mechanism of ecosystem succession and rocky desertification. In this respect, the factors of lithology, topography, ecology, hydrology, vegetation, socio-economy, meteorology, soil, etc. were studied in the demonstration areas of Mengzi and Luxi rocky desertification control. Moreover, the interaction between vegetation and hydrological processes in the typical watershed was established, and the critical period and water requirement of the ecological water demand in the watershed were established. The ecological and hydrological process of the vegetation, as well as nitrogen, calcium and water cycling, and the carbon sequestration ability of ecosystems were used to predict the evolution of ecosystem succession and rocky desertification. The results provided the theoretical basis for the rational allocation of ecological water resources and ecological restoration in rocky desertification area.

Key words: Rocky desertification. Graben Basin environmental and geological differentiation Ecological

收稿日期: 2017-04-27 出版日期: 2017-09-20

ZTFLH:

P20

基金资助: 国家重点研发计划项目“喀斯特断陷盆地石漠化演变及综合治理技术与示范”之课题一“断陷盆地生态环境地质分异及石漠化演变机理”(编号:2016YFC0502501)资助

作者简介: 李强(1978-),男,山东曹县人,研究员,主要从事岩溶生物地球化学研究.E-mail:glqiangli@163.com

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引用本文:

李强, 蒲俊兵, 黄妮, 杜红梅, 祁向坤, 王力, 杨慧. 断陷盆地生态环境地质分异及石漠化演变机理的研究途径[J]. 地球科学进展, 2017, 32(9): 899-907.

Li Qiang, Pu Junbing, Huang Ni, Du Hongmei, Qi Xiangkun, Wang Li, Yang Hui. A Research Approach for Ecological, Environmental and Geological Differentiation of Rocky Desertification and Its Driving Mechanism in Karst Graben Basin. Advances in Earth Science, 2017, 32(9): 899-907.

链接本文:

http://www.adearth.ac.cn/CN/10.11867/j.issn.1001-8166.2017.09.0953 或 http://www.adearth.ac.cn/CN/Y2017/V32/I9/899

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