Knowledge Resource Center for Ecological Environment in Arid Area
| 关中盆地植被覆盖动态及其对气候因子的响应 | |
| 其他题名 | Vegetation Coverage Dynamics and Its Response to Climate Factors in the Guanzhong Basin |
| 赵玉 | |
| 来源期刊 | 长江科学院院报
 |
| ISSN | 1001-5485 |
| 出版年 | 2020 |
| 卷号 | 37期号:6页码:49-54 |
| 中文摘要 | 基于MODIS植被指数和气象数据,采用趋势分析和地统计分析方法对关中盆地植被覆盖时空分布特征进行分析;借助基于像元的空间分析方法揭示研究区植被覆 盖对气候变化的响应。结果表明:从年际变化特征看,关中盆地植被覆盖呈波动性上升趋势,年均增长率为0.006 1 a~(-1);从年内分布特征看,关中盆地植被覆盖年内波动明显,呈单峰型曲线;从空间分布特征看,关中盆地植被覆盖度呈现明显的空间异质性;从年尺度来 看,关中盆地植被覆盖度与降雨量和温度均呈现不显著正相关;从月尺度来看,关中盆地植被覆盖度与当月降雨量和气温均呈现显著正相关,这说明水热因子的季节 波动对研究区植被生长的影响更大。研究结果可为干旱半干旱地区生态建设和环境保护提供科学依据。 |
| 英文摘要 | In association with MODIS vegetation index and meteorological data,the temporal and spatial distribution characteristics of vegetation cover in the Guanzhong Basin were analyzed via trend analysis and geostatistical analysis.The response of vegetation coverage to climate change in the study area was also revealed using spatial analysis method based on pixel.Results unveil that in terms of annual variation,the vegetation cover of the Guanzhong Basin shows a fluctuating upward trend,with an annual growth rate of 0.006 1 a~(-1);in terms of intro-annual variation,the vegetation cover of the Guanzhong Basin fluctuates significantly during the year,showing a unimodal curve.On the other hand,from the aspect of spatial distribution,the vegetation coverage is of obvious spatial heterogeneity.In annual scale,the vegetation coverage in the Guanzhong Basin is insignificantly positively correlated with rainfall and temperature;in monthly scale,the vegetation coverage is significantly correlated with monthly rainfall and monthly temperature.Such significant positive correlations indicate that seasonal fluctuations in hydrothermal factors have a greater impact on vegetation growth in the study area.The research findings offer scientific basis for ecological construction and environmental protection in arid and semi-arid regions. |
| 中文关键词 | 植被覆盖 ; 降雨量 ; 气温 ; 时空动态 ; 关中盆地 |
| 英文关键词 | vegetation coverage rainfall temperature spatiotemporal dynamics Guanzhong Basin |
| 类型 | Article |
| 语种 | 中文 |
| 收录类别 | CSCD |
| WOS类目 | Geology |
| CSCD记录号 | CSCD:6760304 |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/353987 |
| 作者单位 | 赵玉, 渭南师范学院环境与生命科学学院;;陕西省河流湿地生态与环境重点实验室, ;;陕西省河流湿地生态与环境重点实验室, 渭南;;渭南, 陕西;;陕西 714099;;714099, 中国. |
| 推荐引用方式 GB/T 7714 | 赵玉. 关中盆地植被覆盖动态及其对气候因子的响应[J],2020,37(6):49-54. |
| APA | 赵玉.(2020).关中盆地植被覆盖动态及其对气候因子的响应.长江科学院院报,37(6),49-54. |
| MLA | 赵玉."关中盆地植被覆盖动态及其对气候因子的响应".长江科学院院报 37.6(2020):49-54. |
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