Journal of Integrative Agriculture ›› 2016, Vol. 15 ›› Issue (4): 918-928.DOI: 10.1016/S2095-3119(15)61066-8

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Effects of land use change on the spatiotemporal variability of soil organic carbon in an urban-rural ecotone of Beijing, China

YE Hui-chun1, 2, HUANG Yuan-fang3, CHEN Peng-fei4, HUANG Wen-jiang1, 2, ZHANG Shi-wen5, HUANG Shan-yu6, HOU Sen3   

  1. 1 Key Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, P.R.China
    2 Hainan Key Laboratory of Earth Observation, Sanya 572029, P.R.China
    3 College of Resources and Environment, China Agricultural University, Beijing 100193, P.R.China
    4 State Key Laboratory of Resources and Environment Information System, Institute of Geographic Science and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, P.R.China
    5 College of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, P.R.China
    6 Institute of Geography, University of Cologne, Köln 50923, Germany
  • 收稿日期:2015-02-12 出版日期:2016-04-01 发布日期:2016-04-07
  • 通讯作者: HUANG Wen-jiang, Tel: +86-10-82178169, Fax: +86-10-82178177, E-mail: huangwj@radi.ac.cn
  • 作者简介:YE Hui-chun, E-mail: yehc@radi.ac.cn;
  • 基金资助:

    This research was supported by the Hundred Talent Program of the Chinese Academy of Sciences (Huang Wenjiang), the Innovation “135” Program from Chinese Academy of Sciences (Y3SG0100CX) and the Science & Technology Basic Research Program of China (2014FY210100).

Effects of land use change on the spatiotemporal variability of soil organic carbon in an urban-rural ecotone of Beijing, China

YE Hui-chun1, 2, HUANG Yuan-fang3, CHEN Peng-fei4, HUANG Wen-jiang1, 2, ZHANG Shi-wen5, HUANG Shan-yu6, HOU Sen3   

  1. 1 Key Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, P.R.China
    2 Hainan Key Laboratory of Earth Observation, Sanya 572029, P.R.China
    3 College of Resources and Environment, China Agricultural University, Beijing 100193, P.R.China
    4 State Key Laboratory of Resources and Environment Information System, Institute of Geographic Science and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, P.R.China
    5 College of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, P.R.China
    6 Institute of Geography, University of Cologne, Köln 50923, Germany
  • Received:2015-02-12 Online:2016-04-01 Published:2016-04-07
  • Contact: HUANG Wen-jiang, Tel: +86-10-82178169, Fax: +86-10-82178177, E-mail: huangwj@radi.ac.cn
  • About author:YE Hui-chun, E-mail: yehc@radi.ac.cn;
  • Supported by:

    This research was supported by the Hundred Talent Program of the Chinese Academy of Sciences (Huang Wenjiang), the Innovation “135” Program from Chinese Academy of Sciences (Y3SG0100CX) and the Science & Technology Basic Research Program of China (2014FY210100).

摘要: Understanding the effects of land use changes on the spatiotemporal variation of soil organic carbon (SOC) can provide guidance for low carbon and sustainable agriculture. In this paper, based on the large-scale datasets of soil surveys in 1982 and 2009 for Pinggu District — an urban-rural ecotone of Beijing, China, the effects of land use and land use changes on both temporal variation and spatial variation of SOC were analyzed. Results showed that from 1982 to 2009 in Pinggu District, the following land use change mainly occurred: Grain cropland converted to orchard or vegetable land, and grassland converted to forestland. The SOC content decreased in region where the land use type changed to grain cropland (e.g., vegetable land to grain cropland decreased by 0.7 g kg–1; orchard to grain cropland decreased by 0.2 g kg–1). In contrast, the SOC content increased in region where the land use type changed to either orchard (excluding forestland) or forestland (e.g., grain cropland to orchard and forestland increased by 2.7 and 2.4 g kg–1, respectively; grassland to orchard and forestland increased by 4.8 and 4.9 g kg–1, respectively). The organic carbon accumulation capacity per unit mass of the soil increased in the following order: grain cropland soil

关键词: land use change ,  soil organic carbon ,  spatiotemporal variability ,  urban-rural ecotone

Abstract: Understanding the effects of land use changes on the spatiotemporal variation of soil organic carbon (SOC) can provide guidance for low carbon and sustainable agriculture. In this paper, based on the large-scale datasets of soil surveys in 1982 and 2009 for Pinggu District — an urban-rural ecotone of Beijing, China, the effects of land use and land use changes on both temporal variation and spatial variation of SOC were analyzed. Results showed that from 1982 to 2009 in Pinggu District, the following land use change mainly occurred: Grain cropland converted to orchard or vegetable land, and grassland converted to forestland. The SOC content decreased in region where the land use type changed to grain cropland (e.g., vegetable land to grain cropland decreased by 0.7 g kg–1; orchard to grain cropland decreased by 0.2 g kg–1). In contrast, the SOC content increased in region where the land use type changed to either orchard (excluding forestland) or forestland (e.g., grain cropland to orchard and forestland increased by 2.7 and 2.4 g kg–1, respectively; grassland to orchard and forestland increased by 4.8 and 4.9 g kg–1, respectively). The organic carbon accumulation capacity per unit mass of the soil increased in the following order: grain cropland soil

Key words: land use change ,  soil organic carbon ,  spatiotemporal variability ,  urban-rural ecotone