Journal article
Policy incentives for reducing nitrate leaching from intensive agriculture in desert oases of Alxa, Inner Mongolia, China
Y Wei, D Chen, K Hu, IR Willett, J Langford
Agricultural Water Management | Published : 2009
Abstract
Excessive irrigation and nitrogen applications result in substantial nitrate leaching into groundwater in intensively cropped oases in desert areas of Alxa, Inner Mongolia. An integrated modelling approach was developed and applied to compare policy incentives to reduce nitrate leaching. The integrated model consists of a process-based biophysical model, a meta-model, a farm economic model and an assessment of policy incentives. The modelling results show that there are "win-win" opportunities for improving farm profitability and reducing nitrate leaching. We found that 4471 Yuan ha-1 of farm gross margin could be obtained with a reduction in nitrate leaching of 373 kg ha-1. Farmers' lack of..
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Awarded by Program for New Century Excellent Talents in University
Funding Acknowledgements
The authors are indebted to the Australian Centre of International Agricultural Research (ACIAR) (Project No. LWR/2003/039), the Australia-China Special Fund (Project No. CH06136) and the Chinese Program for New Century Excellent Talents in University (Project No. NCET-07-0809) for their financial support and to AusAID Project (ALERMP) for its assistance with the survey and providing basic information to this project.