北京师范大学学报（自然科学版）Issue(2)：189-194,6.
基于时间序列MODIS数据的川续断栽培区土壤水分变化研究
CHANGES IN SOIL MOISTURE IN DIPSACUS ASPEROIDES CULTIVATION AREA AS OBTAINED FROM TIME SERIES MODIS DATA
摘要
Abstract
Soil moisture is an important environmental factor affecting the growth of Chinese herbal plants. This paper tries to use remote sensing to monitore soil moisture for cultivated Dipsacus asperoides in two cultivation bases in Longli and Guiding counties in Qiannan city,Guizhou province.MODIS vegetation and temperature data for Guizhou in 2010 were fed into model of Ts-NDVI feature space to construct Temperature-NDVI Dryness Index (TVDI).Soil moisture was retrieved using empirical relationship between TVDI and soil moisture.Time series analysis was used,change pattern in soil moisture was then analyzed.Early spring was found to have the lowest soil moisture.From late spring to early autumn,soil moisture was found to be relatively stable compared with other periods.In late autumn,soil moisture was found to start to change dramatically.When winter starts,soil moisture increases initially then decreases,with the largest fluctuations. After testing and verifying two remote sensing inversions with true soil moisture data of the same time period, ideal results showed that the present approach was practicable in monitoring soil moisture for Chinese herbal medicine.关键词
川续断/土壤水分/遥感监测/MODIS/时间序列Key words
Dipsacus asperoides/soil moisture/remote sensing monitoring/MODIS/time series引用本文复制引用
穆晓东,刘慧平,杨晓彤,朱寿东,郭兰萍,黄璐琦..基于时间序列MODIS数据的川续断栽培区土壤水分变化研究[J].北京师范大学学报（自然科学版）,2014,(2):189-194,6.基金项目
中央高校基本科研业务费专项资金资助 （）
发改办高技[2010]1196号 （）
国家863计划资助项目(2006AA120102) （2006AA120102）
国家自然科学基金资助项目(40671127) （40671127）
国家科技支撑计划资助项目(2008BAK49B04) （2008BAK49B04）
国家CNGI专项资助(CNGI-09-01-07) （CNGI-09-01-07）
