Agricultural Landscape Dynamics and Its Response in Seasonal Vegetation Activities in the Loess Plateau, Northern Shaanxi, China

文献类型： 外文期刊

第一作者： Li, Zhengguo

作者： Li, Zhengguo;Yang, Peng;Zhou, Qingbo;Tang, Huajun;Li, Zhengguo;Yang, Peng;Zhou, Qingbo;Tang, Huajun;Wang, Yanglin;Chang, Hsiaofei

作者机构：

关键词： Agricultural Landscape;Landscape structure;Normalized Difference Vegetation Index (NDVI);The Loess Plateau of China

期刊名称：COMPUTER AND COMPUTING TECHNOLOGIES IN AGRICULTURE V, PT II

ISSN： 1868-4238

年卷期： 2012 年 369 卷

页码：

收录情况： SCI

摘要： The ecological and environmental conditions in semiarid areas are closely linked to landscape dynamics. This study examined the seasonal vegetation activities of landscape classes and dynamics in the Loess Plateau in North Shaanxi Province, China. Landscape dynamics were studied by comparing Landsat images in 1987 and 2007, and classified as landscape transitions, landscape variations and unchanged landscape. The characteristics of seasonal vegetation activities, such as dates for onset-of-greenness, peaks, and onset-of-senescence for landscapes were determined using Moderate Resolution Imaging Spectroradiometer (MODIS) 10-day vegetation index composite products (2002-2009). The landscape dynamics showed that some sloping croplands were converted to woodlands and grasslands. Vegetation activities responded diversely and seasonally to landscape classes and dynamics. Temporal analysis of the Normalized Difference Vegetation Index (NDVI) showed that the time of onset-of-greenness and onset-of-senescence were similar for all major landscape classes, while the time of peak vegetation activity was longer for tree than grass species. The analysis of seasonal vegetation activities and landscape dynamics indicated that seasonal vegetation activities were not only relative to landscape classes, but also affected by landscape dynamics.

分类号：

  • 相关文献

[1]Change in ladybeetle abundance and biological control of wheat aphids over time in agricultural landscape. Yang, Long,Zeng, Yingda,Xu, Lei,Liu, Bing,Zhang, Qian,Lu, Yanhui. 2018

[2]Identification of QTLs for seedling vigor in winter wheat. Li, Xing-Mao,Wang, Hua-Jun,Li, Xing-Mao,Chen, Xin-Min,Xiao, Yong-Gui,Xia, Xian-Chun,Wang, De-Sen,He, Zhong-Hu,Li, Xing-Mao,He, Zhong-Hu.

[3]Review of Drought Monitoring Indicators. Zhang, Qiaofeng,Liu, Guixiang,Zhang, Qiaofeng,Zhang, Qiaofeng,Bao, Yuhai. 2014

[4]Links between Western Pacific Subtropical High and vegetation growth in China. Huang, Mei,Hao, Man,Wang, Shaoqiang,Wang, Zhaosheng,Gong, He,Hao, Man,Wang, Shaoqiang,Dan, Li,Dan, Li,Gu, Fengxue. 2018

作者其他论文 更多>>

微信小程序