Journal of Geographical Sciences >
Land consolidation engineering and modern agriculture: A case study from soil particles to agricultural systems
Author: Liu Yansui (1965-), Professor, specialized in land use science, land engineering and urban-rural development. E-mail: liuys@igsnrr.ac.cn
Received date: 2018-03-07
Accepted date: 2018-05-20
Online published: 2018-12-20
Supported by
National Key R&D Program of China, No.2017YFC0504701; National Natural Science Foundation of China, No.41801174
Copyright
Land consolidation engineering is one of the very important ways to improve the quality of farmland and the level of agricultural productivity. Studies of land consolidation and crop cultivation still mainly focus on single land functional optimization or crop breeding and yields. However, whether the improved crop varieties were sown on healthy and fertile soils is still a question. This paper introduces new ideas and engineering measures for sandy land rehabilitation and modern agricultural development in the Mu Us Sandy Land, Shaanxi Province, Western China. The important roles of particles and aggregates in soil reconstruction were confirmed following three innovative microscopic theories, including micro-structure, micro-morphology and micro-mechanism. New soil was constructed based on the physical complementarity of sandy, clay and loess particles in the Yulin area, northern Shaanxi Province. Field experiments were carried out to study the appropriate mixture ratio of different soils and their suitability for different crops. The improved crop varieties were sown on healthy and fertile soils, which were chosen by coupling according to its soil ecological suitability and crop physiological adaptability. The fertility improvement practices in the new constructed soils with different crops integrated water and fertilizer management measures, which were also provided in the experiment. Overall, an integrated land optimization configuration with improved and optimized crop variety selection was suggested for engineering sandy land-oriented consolidation from the soil particles to the agricultural system.
LIU Yansui , ZHENG Xiaoyu , WANG Yongsheng , CAO Zhi , LI Yuheng , WU Wenhao , LIU Zhengjia , LIU Huaihua , LI Rui . Land consolidation engineering and modern agriculture: A case study from soil particles to agricultural systems[J]. Journal of Geographical Sciences, 2018 , 28(12) : 1896 -1906 . DOI: 10.1007/s11442-018-1570-1
Figure 1 Locations of Yulin city and the study site |
Figure 2 Comprehensive framework of sandy land consolidation and modern agriculture |
Figure 3 Scenarios on land consolidation and modern agriculture: from soil particles to agricultural systems |
Figure 4 Key issues in the present research |
Figure 5 Land use issues and related developmental schemes |
The authors have declared that no competing interests exist.
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