This paper introduces Vietnam's climate condition,main rice production regions and analyses the expansion of rice planting area,rice cropping system during the last decades.The result from the change of rice produ...This paper introduces Vietnam's climate condition,main rice production regions and analyses the expansion of rice planting area,rice cropping system during the last decades.The result from the change of rice production,planting area,yield,and rice trade indicates that the economic reforms in Vietnam from 1986 have contributed to a spectacular rise in rice production and exports.However,there are still problems and opportunities for rice production and export in Vietnam.The paper suggests that Vietnam should make the most use of the advanced international rice cultivars and technology to improve irrigation and water conservancy facilities to benefit rice farmer and consolidate Vietnam to be the major exporter of rice in the world market.展开更多
The occurrence of rice high-temperature damage (HTD) has increased with global warming. Cultivation of rice is seriously affected by the HTD in the middle and lower reaches of the Yangtze River, which directly affects...The occurrence of rice high-temperature damage (HTD) has increased with global warming. Cultivation of rice is seriously affected by the HTD in the middle and lower reaches of the Yangtze River, which directly affects food security in this region and in the whole of China. It is important to monitor and assess crop HTD using satellite remote sensing information. This paper reviews the recent development of monitoring rice HTD using optical remote sensing information. It includes the use of optical remote sensing information to obtain the regional spatial distribution of high temperatures, mixed-surface temperature retrieval for rice fields based on mixed decomposition information, the development of field and thermal infrared testing and modeling, and the satellite/ground-based remote sensing coupled method for monitoring rice HTD. Finally, the prospects for monitoring crop HTD based on remote sensing information are summarized.展开更多
基金Supported by the National Natural Science Foundation of China(30771160)Central Public-interest Scientific Institution Basal Research Fund(2009RG005-6)~~
文摘This paper introduces Vietnam's climate condition,main rice production regions and analyses the expansion of rice planting area,rice cropping system during the last decades.The result from the change of rice production,planting area,yield,and rice trade indicates that the economic reforms in Vietnam from 1986 have contributed to a spectacular rise in rice production and exports.However,there are still problems and opportunities for rice production and export in Vietnam.The paper suggests that Vietnam should make the most use of the advanced international rice cultivars and technology to improve irrigation and water conservancy facilities to benefit rice farmer and consolidate Vietnam to be the major exporter of rice in the world market.
基金supported by the Global Change Key Research Project (Grant No. 2010CB951302)the Social Common Wealth Research Project (Grant No. GYHY201106027)+1 种基金the National Natural Science Foundation of China (Grant No. 40771147)the National Key Technology R&D Program of China (Grant No. 2006BAD04B04)
文摘The occurrence of rice high-temperature damage (HTD) has increased with global warming. Cultivation of rice is seriously affected by the HTD in the middle and lower reaches of the Yangtze River, which directly affects food security in this region and in the whole of China. It is important to monitor and assess crop HTD using satellite remote sensing information. This paper reviews the recent development of monitoring rice HTD using optical remote sensing information. It includes the use of optical remote sensing information to obtain the regional spatial distribution of high temperatures, mixed-surface temperature retrieval for rice fields based on mixed decomposition information, the development of field and thermal infrared testing and modeling, and the satellite/ground-based remote sensing coupled method for monitoring rice HTD. Finally, the prospects for monitoring crop HTD based on remote sensing information are summarized.
