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| Residue usage and farmers' recognition and attitude toward residue retention in China's croplands |
| Received:November 25, 2016 |
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| KeyWord:residue mulching;crushing return;residue burning;residue retention;fuel;feed |
| Author Name | Affiliation | E-mail | | ZHANG Guo | Institute of Karst, Guizhou Normal University, Guiyang 550001, China
State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China | | | LU Fei | State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China | | | ZHAO Hong | Jinan Environmental Research Institute, Jinan 250100, China | | | YANG Guang-bin | School of Geography and Environmental Science, Guizhou Normal University, Guiyang 550001, China | | | WANG Xiao-ke | State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China | wangxk@rcees.ac.cn | | OUYANG Zhi-yun | State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China | |
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| Abstract: |
| To clarify the situation of crop residue usage in China, we carried out a farmer survey across the country. Based on the survey and national statistical data, our results indicated that the national total residue product of nine major crops (rice, wheat, corn, sorghum, potato, cotton, rapeseed, sunflower, and sugarcane) was 778 Mt in 2011. On a national scale, the percentages of residue burning, retention, fuel, feed, and other usage were 27%, 38%, 17%, 14%, and 4%, respectively. The total amount of residue retention in Shandong, Henan, and Hebei Provinces accounted for approximately half of the national residue retention, 67% of which was attributed to crushing return. As for farmers' recognition of, and attitude toward, residue retention, the supporters mainly addressed improvement of soil quality and crop yield, while the objectors complained of increasing economic cost, crop disease exacerbation, and lower sowing quality of the next crop. To avoid resource waste and environmental pollution, differentiated approaches toward residue usage and retention should be conducted, accompanied by measurements of publicity and training, technology development, and policy support across China. |
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