China began to use remote sensing technology to monitor agricultural production

The introduction: "the operation system of remote sensing production estimation of the Ministry of agriculture" has been put into operation recently, marking that China has become one of the few countries in the world that use remote sensing technology to monitor agricultural production This system will provide effective scientific means for the development and protection of agricultural resources, the estimation of large crops, the evaluation of major agricultural disasters, the monitoring of structural adjustment and agricultural early warning At today's press conference held by the Ministry of agriculture, Xue Liang, director of the Department of development and planning of the Ministry of agriculture, said that remote sensing technology, combined with other modern high-tech technologies such as geographic information system and global positioning system, can realize the timing, quantification and positioning of information collection and analysis, which is objective and free from human interference The remote sensing estimation system of the United States, the European Union, Australia and other countries and regions has been put into use since the 1980s, which has played an important role in food production, trade and food security early warning Using this technology to carry out agricultural monitoring in China will promote the scientific agricultural decision-making to a new level and provide high-quality services for agricultural production It is understood that in 1999, China began to carry out crop remote sensing yield estimation and trial operation of agricultural resource monitoring system, such as remote sensing monitoring of national winter wheat and corn planting area, unit yield, growth, drought and total yield change, national cotton planting area change, and grassland livestock balance in the North At present, in the aspect of monitoring the change of main crop area, it is mainly to use the image of resource remote sensing satellites such as China's resource-1 and the US Landsat to measure the crop area The national calculation of the change of planting area can be completed one month before the harvest of crops, and the change of planting area in the same year compared with that in the previous year can be obtained In the aspect of remote sensing monitoring of crop growth, we mainly use the images of Fengyun series meteorological satellites in China and the new generation meteorological satellites in the United States to compare and evaluate the regional changes of crop growth through the comprehensive analysis with the data of ground meteorological stations and field investigation Xue Liang said that during the Tenth Five Year Plan period, agricultural remote sensing applications will focus on the construction of major crop remote sensing monitoring systems, national agricultural resources monitoring systems, digital agriculture and precision agriculture demonstration systems In addition to providing production estimation information, these three systems can also provide basic and supporting information for the ongoing key work of establishing early warning system of agricultural products, strategic adjustment of agricultural structure, analysis of regional advantages of agricultural resources and regional layout planning of advantageous agricultural products 7jh (author:) to feed Weibo to: