globalchange  > 气候变化事实与影响
CSCD记录号: CSCD:6242980
论文题名:
湖北省植被覆盖度变化及其对地形因子的响应
其他题名: Vegetation coverage change and its response to terrain factors in Hubei province
作者: 陈亮1; 陈世俭2; 蔡晓斌2; 易祁1; 刘惠3
刊名: 中南林业科技大学学报
ISSN: 1673-923X
出版年: 2018
卷: 38, 期:4, 页码:781-790
语种: 中文
中文关键词: 植被覆盖度 ; 植被指数 ; 像元二分模型 ; 地形因子 ; 湖北省
英文关键词: vegetation coverage ; vegetation index ; dimidiate pixel model ; terrain factor ; Hubei province
WOS学科分类: FORESTRY
WOS研究方向: Forestry
中文摘要: 在RS和GIS技术的支持下,基于MODIS-NDVI数据,采用像元二分模型估算了湖北省2000―2015年的植被覆盖度。运用一元线性回归趋势分析方法和有序聚类分析方法对植被覆盖度时空变化趋势及突变进行了研究,并结合DEM分析其对高程、坡度等地形因子的响应。结果表明:(1)湖北省植被覆盖度整体较高并呈现西高东低、四周高中间低的空间分布格局,地形、土地覆被类型等是影响湖北省植被覆盖度空间分布的重要原因。(2)2000―2015年湖北省植被覆盖度整体上呈现波动上升态势,但以不显著变化为主。其中,基本不变区占研究区总面积的88.10%,显著增加、显著减少区分别只占1.52%和1.31%。鄂西山区是植被覆盖度的主要改善区,武汉城市圈则是主要退化区。(3)植被覆盖度分别在700 m高程带和14°坡度带发生显著突变。 100 m及2 500 ~ 2 800 m高程带植被覆盖度在2009年发生显著突变;300 ~ 400 m及1 100 ~ 2 400 m高程带在2004年发生显著突变。2°~ 10°及46°~ 52°坡度带植被覆盖度在2004年发生显著突变。16 a间湖北省植被覆盖度变化可能是气候波动、退耕还林工程实施等因素共同作用的结果,其中退耕还林工程的实施是该区植被覆盖度增加的主要因素。
英文摘要: Based on MODIS-NDVI data and supported by RS and GIS techniques, the vegetation coverage was estimated from the NDVI dimidiate pixel model in Hubei Province from 2000 to 2015 in this paper. The monadic linear regression trend analysis method and the ordered clustering analysis method were mostly used to analyzing vegetation coverage changes. In addition, The effects of terrain factors such as elevation and slope on vegetation coverage were analyzed by DEM. The results showed that : 1)the vegetation coverage in Hubei was generally low in the west and high in the east and low in the middle and high sides, the topography and land cover types were the important factors that influence the distribution of vegetation coverage in Hubei Province. 2)The vegetation coverage of Hubei Province showed a fluctuated upward trend from 2000 to 2015, but the change was not significant. The basic invariable area accounted for 88.10% of the study area, while the significant increase and significant reduction area accounted for only 1.52% and 1.31% respectively. The Western Hills of Hubei Province were the main improvement areas of vegetation coverage, while the Wuhan megalopolis was the main degraded area. 3)The abrupt change points of vegetation coverage occurred at 700 m and 2800 m in the elevation zones, 14 degrees in the slope zones respectively. The year of 2009 was a significant abrupt change point in vegetation coverage at 100 m and 2 500-2 800 m elevation zones, while the year of 2004 was a significant abrupt change point in vegetation coverage at 300- 400 m and 1 100-2 400 m elevation zones. The year of 2004 was a significant abrupt change point in vegetation coverage at 2 ° -10 ° and 46 °-52 ° slope zones. The change of vegetation coverage in Hubei Province during 16 years may be the result of the interaction of climate fluctuation and the project of returning farmland to forest, and the implementation of the project of returning farmland to forest was the main factor for the increase of vegetation coverage in this area.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/155431
Appears in Collections:气候变化事实与影响

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作者单位: 1.武汉工程科技学院, 武汉, 湖北 430200, 中国
2.中国科学院测量与地球物理研究所
3.环境与灾害监测评估湖北省重点实验室,
4.环境与灾害监测评估湖北省重点实验室, 武汉
5.武汉, 湖北
6.湖北 430077
7.430077, 中国
8.中国科学院测量与地球物理研究所
9.中国科学院大学,
10., 武汉
11., 湖北
12.北京 430077
13.100049, 中国

Recommended Citation:
陈亮,陈世俭,蔡晓斌,等. 湖北省植被覆盖度变化及其对地形因子的响应[J]. 中南林业科技大学学报,2018-01-01,38(4):781-790
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