地理科学进展 ›› 2015, Vol. 34 ›› Issue (10): 1324-1333.doi: 10.18306/dlkxjz.2015.10.013
• 土地利用 • 上一篇
张宇硕1,2(), 陈军2, 陈利军2, 李然2, 张委伟2, 鲁楠2,3, 刘吉羽2,3
收稿日期:
2015-03-01
接受日期:
2015-05-01
出版日期:
2015-10-20
发布日期:
2015-10-20
作者简介:
作者简介:张宇硕(1985-),女,山西忻州人,博士研究生,主要研究方向为地表覆盖变化,E-mail:
基金资助:
Yushuo ZHANG1,2(), Jun CHEN2, Lijun CHEN2, Ran LI2, Weiwei ZHANG2, Nan LU2,3, Jiyu LIU2,3
Received:
2015-03-01
Accepted:
2015-05-01
Online:
2015-10-20
Published:
2015-10-20
摘要:
西伯利亚是全球环境变化的重要敏感性区域,但以往缺乏该区域中高分辨率地表覆盖数据,对其地表覆盖的整体分布与变化缺乏深入的认识。本文利用中国新近研制的2000、2010年两期30 m分辨率地表覆盖数据产品GlobeLand30,对2000-2010年西伯利亚地表覆盖的空间分布格局、变化幅度、区域差异及主要地类的变化原因进行了综合分析。研究发现:①西伯利亚地表覆盖的空间分布现状具有明显的地带性特征。②10年间,西伯利亚地区地表覆盖整体变化幅度较大,其中林地及草地呈显著缩减、湿地呈较大幅度增加、耕地呈微弱减少、人造地表呈增加态势。③10年间,西伯利亚地表覆盖变化具有显著的区域差异性。变化最显著的为西西伯利亚地区,其中以湿地增加最明显,主要分布于鄂毕河—叶尼塞河流域,林地、草地及耕地减少集中于西伯利亚西南部。④人类活动和气候变暖是引发西伯利亚地表覆盖变化的主要原因。大规模林地砍伐导致林地减少;冰冻层消融,林地、草地和水体向湿地的转化是湿地增加的主要原因;耕地的人为废弃和撂荒导致耕地面积有所减少。
张宇硕, 陈军, 陈利军, 李然, 张委伟, 鲁楠, 刘吉羽. 2000-2010年西伯利亚地表覆盖变化特征——基于GlobeLand30的分析[J]. 地理科学进展, 2015, 34(10): 1324-1333.
Yushuo ZHANG, Jun CHEN, Lijun CHEN, Ran LI, Weiwei ZHANG, Nan LU, Jiyu LIU. Characteristics of land cover change in Siberia based on GlobeLand30, 2000-2010[J]. PROGRESS IN GEOGRAPHY, 2015, 34(10): 1324-1333.
表2
2000-2010年西伯利亚地表覆盖面积变化"
地表覆 盖类型 | 面积/km2 | 变化量/km2 | 变化率/% | |
---|---|---|---|---|
2000年 | 2010年 | |||
耕地 | 331857.07 | 327670.29 | -4186.78 | -1.3 |
林地 | 4938646.50 | 4926838.33 | -11808.16 | -0.2 |
草地 | 2851259.77 | 2834043.22 | -17216.55 | -0.6 |
灌丛 | 5489.84 | 5566.93 | 77.09 | 1.4 |
湿地 | 1030637.15 | 1059090.94 | 28453.80 | 2.8 |
水体 | 335176.42 | 326563.73 | -8612.69 | -2.6 |
人造地表 | 21138.59 | 22154.02 | 1015.43 | 4.8 |
裸地 | 26840.84 | 27154.68 | 313.83 | 1.2 |
冰雪 | 8016.91 | 7991.29 | -25.61 | -0.3 |
表3
2000-2010年西伯利亚地表覆盖类型转换率矩阵/%"
耕地 | 林地 | 草地 | 灌木 | 湿地 | 水体 | 人造地表 | 裸地 | 冰雪 | |
---|---|---|---|---|---|---|---|---|---|
耕地 | 0.0 | 23.8 | 68.8 | 0.0 | 1.8 | 1.2 | 4.3 | 0.1 | 0.0 |
林地 | 2.0 | 0.0 | 79.2 | 0.9 | 13.9 | 3.6 | 0.5 | 0.1 | 0.0 |
草地 | 4.7 | 77.2 | 0.0 | 0.5 | 12.3 | 3.9 | 0.8 | 0.7 | 0.0 |
灌木 | 0.0 | 63.5 | 35.3 | 0.0 | 0.6 | 0.5 | 0.1 | 0.0 | 0.0 |
湿地 | 0.8 | 30.1 | 32.8 | 0.0 | 0.0 | 36.0 | 0.1 | 0.2 | 0.0 |
水体 | 0.4 | 18.0 | 22.4 | 0.0 | 56.9 | 0.0 | 0.2 | 2.0 | 0.0 |
人造地表 | 22.7 | 28.6 | 38.4 | 0.1 | 7.4 | 2.2 | 0.0 | 0.6 | 0.0 |
裸地 | 0.1 | 4.1 | 61.8 | 0.0 | 8.0 | 25.8 | 0.2 | 0.0 | 0.0 |
冰雪 | 0.0 | 1.3 | 88.5 | 0.0 | 0.0 | 4.3 | 0.0 | 5.9 | 0.0 |
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