世界屋脊生态地理区地形坡度分级数据集内容与成果

doi:10.11821/dlxb2014S003

地理学报 ›› 2014, Vol. 69 ›› Issue (s1): 25-29.doi: 10.11821/dlxb2014S003

世界屋脊生态地理区地形坡度分级数据集内容与成果

刘闯¹, 石瑞香¹, 吕婷婷², 陈文波³, 王正兴¹, 周翔²

1. 中国科学院地理科学与资源研究所, 北京 100101;
2. 中国科学院遥感与数字地球研究所, 北京 100101;
3. 日本庆应义塾大学SFC研究所, 日本藤泽 2520882

收稿日期:2014-03-25 修回日期:2014-06-20 出版日期:2014-01-20 发布日期:2020-04-07
作者简介:刘闯 (1948-), 女, 研究员, 主要从事全球变化信息、数据共享等研究。E-mail: lchuang@igsnrr.ac.cn
基金资助:
中国科学院项目 (2010): 人地系统主题数据库建设与服务 (INF0-115-C01-SDB3-02)

Land slope cluster dataset of the eco-region of the Roof of the World

JIANG Dong¹, FU Jingying^{1, 2}, HUANG Yaohuan¹

1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2014-03-25 Revised:2014-06-20 Online:2014-01-20 Published:2020-04-07
Supported by:
Chinese Academy of Sciences (2010): Human and Environment Database and Services, No.INF0-115-C01-SDB3-02

摘要/Abstract

摘要： 世界屋脊生态地理区地形坡度分级数据集 (ROTWSLC) 是在ASTER GDEM 2数据基础上,对原数据进行预处理后,根据倾斜角度、百分比升高两种类型,计算坡度后再进行分级得到的。结果表明,在世界屋脊生态地理区,坡度在7º以上的区域约占总面积的72.02%;坡度在10%以上的区域约占到总面积的77.05%。该数据对于了解世界屋脊地理区的地形特征、进行生态、环境等的适宜性、脆弱性评价等具有重要意义。两种类型的数据均为栅格格式,每种包括475个1×1度的数据块。压缩后的数据量约为2.22GB。

关键词: 世界屋脊, 青藏高原, 兴都库什喜马拉雅, 生态地理区, 地形坡度, 分类数据

Abstract: Biodiesel from bio-energy crops is expected to play an increase role in solving energy crisis. Thus, large-scale cultivation of bio-energy crops causes worldwide attention. Asia is the most populous continent and has a really fast speed of economic growth which causes a massive increase in energy demand. This dataset from the suitability assessment of marginal land resources for cultivating bio-energy crops without affecting food security. A multi-factor analysis method was applied to identify marginal land available for bioenergy development and multiple datasets were used as background including the natural characteristics of bio-energy crops and geographic data. The results indicate that the marginal land resources in Asia are about 16.99 million km². The validations were conducted in Wuhan Botanical Garden of the Chinese Academy of Sciences and South China Botanical Garden with the accuracy higher than 85%. This dataset provides important support to the large-scale cultivation of energy plants and sustainable development of bioenergy.

Key words: Asia, bio-energy crops, marginal land, data

刘闯, 石瑞香, 吕婷婷, 陈文波, 王正兴, 周翔. 世界屋脊生态地理区地形坡度分级数据集内容与成果[J]. 地理学报, 2014, 69(s1): 25-29.

JIANG Dong, FU Jingying, HUANG Yaohuan. Land slope cluster dataset of the eco-region of the Roof of the World[J]. Acta Geographica Sinica, 2014, 69(s1): 25-29.

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世界屋脊生态地理区地形坡度分级数据集内容与成果

Land slope cluster dataset of the eco-region of the Roof of the World

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