Acta Geographica Sinica ›› 2014, Vol. 69 ›› Issue (s1): 83-85.doi: 10.11821/dlxb2014S016

Previous Articles     Next Articles

Soil sample data for locust plague analysis around Baiyangdian Lake in 2002

XU Xinliang1, ZHAI Mengyuan2, LIU Luo3, 4   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. College of Resources and Environmental Science, Nanjing Agriculture University, Nanjing 210095, China;
    3. Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China;
    4. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2014-03-16 Revised:2014-06-20 Online:2014-12-26 Published:2020-04-07

Abstract: The winter fallow land is significant to agriculture in Yangtze River, because it could be used to increase the grain yield. The information included in the dataset of winter fallow land in middle and lower reaches of Yangtze River (WFL_MLYR) is helpful for understanding agriculture production condition, exploring agriculture production potential and keeping agriculture development sustainable. The dynamic threshold method based on time series MODIS NDVI is an useful practical method to extract spatial information of winter fallow land. The WFL_MLYR are spatial data of winter fallow land from 2007 to 2008 with a 1km spatial resolution. It includes the data on mature date, sowing date and winter fallow fields. The extraction data were compared with the actual result from agricultural meteorological observation station. The accuracy of mature date is more than 91%, and that of sowing date is 86% approximately.

Key words: middle and lower reaches, Yangtze River, winter fallow land, dataset