地理科学进展 ›› 2016, Vol. 35 ›› Issue (1): 57-66.doi: 10.18306/dlkxjz.2016.01.007

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中国戈壁综合自然区划研究

申元村1(), 王秀红1,**(), 程维明2, 吴金凤1,3, 卢琦4, 冯益明4   

  1. 1. 中国科学院地理科学与资源研究所,陆地表层格局与模拟院重点实验室,北京 100101
    2. 资源与环境信息系统国家重点实验室,中国科学院地理科学与资源研究所,北京 100101
    3. 中国科学院大学,北京 100049
    4. 中国林业科学院荒漠化研究所,北京 100091
  • 出版日期:2016-01-31 发布日期:2016-01-31
  • 通讯作者: 王秀红 E-mail:shenyc@igsnrr.ac.cn;wangxh@igsnrr.ac.cn
  • 作者简介:

    作者简介:申元村(1941-),男,广东兴宁市人,研究员,主要从事自然地理综合研究,E-mail: shenyc@igsnrr.ac.cn

  • 基金资助:
    基金项目:林业行业公益项目(201404304);测绘地理信息公益性行业科研专项(201512033)

Integrated physical regionalization of stony deserts in China

Yuancun SHEN1(), Xiuhong WANG1,*(), Weiming CHENG2, Jinfeng WU1,3, Qi LU4, Yiming FENG4   

  1. 1. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    2. State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    3. University of Chinese Academy of Sciences,Beijing 100049, China
    4. Institute of Desertification, China Academy of Forestry Sciences, Beijing 100091, China
  • Online:2016-01-31 Published:2016-01-31
  • Contact: Xiuhong WANG E-mail:shenyc@igsnrr.ac.cn;wangxh@igsnrr.ac.cn
  • Supported by:
    Forestry NonprofitSpecific Project, No.201404304;Surveying and Mapping Geoinformation Nonprofit Specific Project, No.201512033

摘要:

中国戈壁广泛分布于北方的干旱与极干旱区域,直至目前尚未系统地开展戈壁分区研究。本文在综合分析戈壁特征与形成发生机制关系后认为,我国戈壁的最主要特征是地表砾质覆盖;表层具孔状漆漠结皮,其下具棕红色紧实层及石膏层;植物覆盖度极低,生长旱生极旱生灌木—半灌木。戈壁形成发生的区域仅限于干燥度4以上的干旱、极干旱区域。根据戈壁特征及发生条件的区域分异,选取干温指标、区域地质地貌建造指标、地表物质成因形态指标,将中国戈壁分布区划分为温性干旱极干旱戈壁区、暖性干旱极干旱戈壁区和青藏高原北部亚寒干旱极干旱戈壁区3个一级区(区),其下按区域地质地貌建造特征划分出9个二级区(地区),再按戈壁地表物质成因与形态差异划分出19个三级区(亚地区)。还可根据土壤和植被的地域分异进一步划分出若干个四级区(小区)。

关键词: 戈壁, 干旱与极干旱区域, 综合自然区划

Abstract:

Stony deserts are widely distributed in the arid and extremely arid regions in China. However, an integrated physical regionalization of these stony deserts has not been carried out. Based on a comprehensive analysis of the relationship between the characteristics and formation mechanism of stony deserts, the main features of stony deserts can be summarized as follows: land surface is covered with gravels; surface layer has porous thin desert crust, below which red brown compact and gypsum layers are found. Vegetation mainly includes arid and extremely arid shrubs and semi-shrubs with low coverage. Stony deserts only exist in arid and extremely arid regions with aridity index greater than 4. Based on the regional differentiation of characteristics and formation conditions of stony deserts, this study selected indicators reflecting aridity and temperature, regional geology and geomorphology, and formation conditions and types of surface materials to classify the stony deserts into three first-level regions (temperate arid and extremely arid region, warm temperate arid and extremely arid region, and arid and extremely arid region in northern Tibetan Plateau); nine second-level regions (according to regional geological and topographical features), and 19 third-level regions (based on regional formation conditions and types of surface materials). Further division can be made based on regional differentiation of soils and vegetation.

Key words: stony desert, arid and extremely arid region, integrated physical regionalization