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Jia Y.,Gansu Agricultural University | Jia Y.,Foreign Economic Cooperation Center | Zhang J.,Gansu Agricultural University | Zhang R.-Z.,Gansu Agricultural University
Acta Prataculturae Sinica | Year: 2016

Water is an important resource for all human beings and for the sustainable development of ecosystems. The Shiyang River Basin is one of the continental drainage basins in Northwest China where the level of water utilization is very high, and the shortage of water resources is therefore serious. Furthermore, the environment is fragile, and the social and economic development is restricted. This paper studies the water consumption by the human population and the impact on the natural ecological environment. Quantitative indicators of the influence are developed to statistically define data of water resources in the Shiyang River Basin. We introduce a concept of regional water resource carrying capacity. The ecological footprint method is used to build a model of the ecological carrying capacity of water resources for the Shiyang River Basin, and calculate the ecological water resource carrying capacity of the Basin. The average water resource carrying capacity was 1955.5 ha, and the ecological footprint is 43531.04 ha. Therefore the average ecological deficit for 2001-2011 in the Shiyang River Basin was 41575.55 ha. Future water resource management should include appropriate immigration policy, adjustment of industrial activity; planting area should not increase, and public education to enhance awareness of water conservation issues should be implemented. Copyright © ACTA PRATACULTURAE SINICA.

Jia Y.,Gansu Agricultural University | Jia Y.,Foreign Economic Cooperation Center | Zhang R.-Z.,Gansu Agricultural University | Zhang J.,Gansu Agricultural University
Acta Prataculturae Sinica | Year: 2016

Virtual water trade is a useful tool for international resource adjustment and has already become an important means for countries or regions facing a scarcity of water resources to trade surplus resources in order to alleviate serious water shortage, so as to guarantee food security and sufficient water supply for essential needs. Here we calculate the quantity of virtual water represented by agricultural trade between China and Africa from 2003 to 2012.The virtual water transfer features distinctive geographic and temporal pattern. From 2003 to 2012, the total amount of virtual water China imported from Africa was 769.71×108 m3, the average virtual water was 76.97×108 m3/year, while the quantity exported to Africa was 427.27×108 m3. Hence there is a net import of virtual water. The countries that are major suppliers of virtual water to China are Mozambique, South Africa, Burkina Faso, Benin and Mali. The major African importers of virtual water from China are South Africa, Morocco, and the Ivory Coast. The agricultural products contributing most to virtual water import by China from Africa are cotton, fruits and animal products; while products contributing significantly to visual water exports from China to Africa are tea, cereals and animal products. The overall balance of virtual water trade between China and Africa moves agricultural products from areas with low efficiency of water use to areas of higher efficiency of water use. This creates a negative impact on global water use efficiency, and a waste of 5.91×108 m3 of water. From a bilateral perspective, the virtual water transfer associated with agricultural trade between China and Africa has desirable water use efficiency benefits for both sides. However, from a global perspective, wasteful virtual water transfer such as this is not sustainable. Copyright © ACTA PRATACULTURAE SINICA.

Cao B.B.,China Agricultural University | Wang R.,Foreign Economic Cooperation Center | Yang H.J.,China Agricultural University | Jiang L.S.,China Agricultural University
Journal of Agricultural Science | Year: 2015

SUMMARY Lignification-associated phenolic acids are widely distributed in graminaceous plant cell walls. Nylon bags containing maize bran, wheat bran, millet husk and rice husk were incubated in the rumens of five Charolais (♂) × Nanyang (♀) crossbred steers for 6, 12, 24, 36, 48 and 72 h. The in situ ruminal disappearance of ester-linked phenolic acids linearly increased in the brans with increasing incubation time, and the disappearance was greater for ester-linked ferulic acid (FAest) than for ester-linked p-coumaric acid (PCAest). The disappearances of FAest and PCAest were positively correlated with disappearances of neutral detergent fibre (NDF), cellulose and hemicellulose. The effective degradabilities of NDF, cellulose and hemicellulose in the brans were markedly greater than the effective degradabilities of these components in the husks, and were negatively correlated with the contents of Lignin (sa), ether-linked ferulic acid, PCAest and ether-linked p-coumaric acid in both the cereal brans and husks. These findings suggested that breeding forage crops with modified phenolic acid contents could represent an alternative strategy to promote further increases in fibre digestibility of cereal residue feeds for ruminant animals. Copyright © Cambridge University Press 2015.

Zhang Y.,Foreign Economic Cooperation Center | Duan Y.,University of Bedfordshire | Hu Y.,Foreign Economic Cooperation Center
ICE-B 2015 - 12th International Conference on e-Business, Proceedings; Part of 12th International Joint Conference on e-Business and Telecommunications, ICETE 2015 | Year: 2015

Over the last three decades, China's agriculture sector has been transformed from the traditional to modern agriculture practice through the effective deployment of Information and Communication Technologies (ICT). Information processing and dissemination have played a critical role in this transformation process. However, there are very limited publications regarding the China's success and lessons learned in utilising ICTs to support Agriculture development and transformation. This paper aims to contribute to a better understanding on how different ICT-based information service models are designed and adopted in China; and to share the knowledge and experience in applying emerging ICTs in disseminating agriculture information to farmers to improve productivity and economic, social and environmental sustainability. The paper reviews and analyses the China's agricultural information service systems and models. Seven ICTbased information dissemination models are identified and discussed. Successful cases are presented to demonstrate the impacts of different service models. The findings provide a useful direction for researchers and practitioners in developing future ICT based information processing and dissemination systems. It is hoped that this paper will also help other developing countries to learn from China's experience and best practice in their endeavor of applying emerging ICTs in agriculture information dissemination and sharing.

Zhao X.,University of Science and Technology Beijing | Zhang Z.,University of Science and Technology Beijing | Qin L.,Foreign Economic Cooperation Center
2015 5th International Conference on Information Science and Technology, ICIST 2015 | Year: 2015

This paper proposed an embedded system to acquire and storage images periodically based on STM32 and transmit images with GPRS to monitoring center. Monitoring center can also send command to acquisition terminals over GPRS. Acquisition terminals are based on STM32 characterized by low energy consumption and high performance. Experiments showed acquisition terminals were stable and reliable in acquisition and image storage, capable of controlling different acquisition angels and uploading images to monitor center. The packet loss probability is less than 10% and average time delay is 2 seconds. © 2015 IEEE.

He Y.,Huazhong Agricultural University | Zhang Q.,Foreign Economic Cooperation Center | Yang G.,Foreign Economic Cooperation Center | Cao S.,Huazhong Agricultural University | And 2 more authors.
Journal of Food, Agriculture and Environment | Year: 2013

With the increase of concentration in the fluid milk industry, firms' ability to exercise market power has aroused the concern of the Chinese government. To separate the market power effect of concentration from its cost efficiency effect, we developed an empirical model for measuring these two kinds of effects. The model is based on a theoretical framework which is known as the 'New Empirical Industrial Organization (NEIO)' approach. Data from the Chinese fluid milk industry for the 1993-2011 time periods are used to evaluate the effects of concentration. The findings show the cost efficiency effect outweighs the market power effect.

He Y.,Huazhong Agricultural University | Zhang Q.,Foreign Economic Cooperation Center | Yang G.,Foreign Economic Cooperation Center
Journal of Food, Agriculture and Environment | Year: 2013

Some chain and control based researches have been done on security of agriculture industry. They showed that foreign investments have held market power and been the biggest threat to a host country because of mergers and acquisitions by controlling each series of vertical functions in mordern agriculture. They choose to control points by analyzing the different grades of controlling difficulty among each vertical function. Firms and the government of the host country should make measures to protect their agriculture.

Chen Z.,University of Science and Technology Beijing | Zhao X.,University of Science and Technology Beijing | Zhang Z.,University of Science and Technology Beijing | Fan Z.,University of Science and Technology Beijing | And 4 more authors.
2014 IEEE International Conference on Communication Problem-Solving, ICCP 2014 | Year: 2014

According to ISA100.11a standard, a new gateway access method based on application layer was proposed in this paper which realized the communication between wireless sensor networks and Ethernet. It was C/S structure and completed on the Linux operating development platform. The system mainly contained four modules: Ethernet interface module, data storage module, protocol conversion module and wireless interface module. Each module was responsible for different functions, so as to communicate and exchange data with each other for various protocols. Two test programs were carried out; experiment results showed the gateway was stable and reliable. It can effectively achieve internal data management and remote monitoring in wireless sensor networks. © 2014 IEEE.

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