...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science and Pollution Research >Variations in vegetation dynamics and its cause in national key ecological function zones in China
【24h】

Variations in vegetation dynamics and its cause in national key ecological function zones in China

机译：中国国家重点生态功能区的植被动态及其原因的变化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Continued long-term monitoring of vegetation activity in national key ecological function zones (NKEFZs) has implications for national ecological security and sustainability in China. We used Global Inventory Modeling and Mapping Studies (GIMMS) Normalized Difference Vegetation Index (NDVI3g) dataset to map and analyze the spatiotemporal patterns of change in vegetation growth and their linkage with climate change and human activities in NKEFZs during 1982-2013. Statistically significant increases of growing season, spring, and autumn NDVI were observed during all or most periods while 25 NKEFZs are taken as a whole. Non-significant decreases of NDVI were found in 7 NKEFZs during a few periods, and obvious increases were observed during fifteen periods in all other NKEFZs. Vegetation growth in NKEFZs was mainly regulated by a thermal factor, and the dominant climatic drivers varied across different regions and seasons. The influence of temperature was stronger on vegetation activity in spring and autumn for those NKEFZs located in high latitudes and high elevations, while precipitation was the main climatic control factor for NKEFZs in the arid and semi-arid regions. The effects of human activity on the NDVI of NKEFZs were not ignored; a significant decrease of NDVI in the Sanjiang Plain may be related to the rapid change in land use from wetland into farmland.
机译：继续监测国家重点生态功能区（NKEFZ）的植被活动对中国的国家生态安全和可持续发展有影响。我们使用全球库存建模和映射研究（GIMMS）归一化差异植被指数（NDVI3G）数据集来映射和分析植被生长变化的时空模式及其在1982 - 2013年期间NKEFZ中的气候变化和人类活动的联系。在全部或大多数期间观察到统计上显着的生长季节，春天和秋季NDVI，而25个NKEFZ作为整体。在7个NKEFZ中发现了NDVI的非显着降低，在几个时期，在所有其他NKEFZ的十五个时期内观察到明显的增加。 NKEFZ的植被生长主要受热因子调节，主导气候司机在不同的地区和季节变化。对于高纬度和高升高的那些NKEFZ，温度对春季和秋季的植被活性的影响力较强，而沉淀是干旱和半干旱地区NKEFZ的主要气候控制因素。人类活动对NKEFZ的NDVI的影响并没有被忽视;三江平原中NDVI的显着降低可能与湿地进入农田的迅速变化有关。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号