| Efficiency of salt drain and inhibiting soil resalinization using a couple lock funnel with streaming function |
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| DOI：10.7606/j.issn.1000-7601.2017.01.42 |
| Key Words: couble lock funnel with streamsing function interlayer in soil salinity germination rate seedling rate |
| Author Name | Affiliation | | XIAO Liang | Key laboratory of Mountain Hazards and Earth Surface Processes, Chengdu, Sichuan 610041, China；Institute of Mountain Hazards and Environment, CAS, Chengdu, Sichuan 610041, China；University of Chinese Academy of Sciences, Beijing 100049, China；School of Geography and Planning, Lu Dong University, Yantai, Shandong 264000, China | | XU Qing | School of Geography and Planning, Lu Dong University, Yantai, Shandong 264000, China | | YI Hua-peng | School of Geography and Planning, Lu Dong University, Yantai, Shandong 264000, China | | DONG Zhi-cheng | School of Geography and Planning, Lu Dong University, Yantai, Shandong 264000, China | | XIONG Dong-hong | Key laboratory of Mountain Hazards and Earth Surface Processes, Chengdu, Sichuan 610041, China；Institute of Mountain Hazards and Environment, CAS, Chengdu, Sichuan 610041, China |
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| Abstract: |
| Using the principle of “salt transport along with water movement”, we designed a couple lock funnel system with streaming function to solve some problems, such as plants suffered from soil resalinization stress and restoration of strongly saline-alkaline soil. With this system, fast salt leaching, remarkably reduced evaporation, less upward movement of groundwater and salt could be functioned effectively to avoid soil salinity and create a root-protected habitat suitable for the growth of crops. The results showed that salt content at 0～20 cm layer in treatment 4 (couple lock funnel with streaming function plus interlayer in soil) was 0.66%, reduced by 5.53 times compared with 3.64% in treatment 0 (CK). We adopted cotton as the examination crop, the treatment 4 had higher germination rate and seedling rate, specifically, germination rate increased 85.6% to from 40.0% in the control, and seedling rate boosted to 82.0% from 0%. The conclusion is the couple lock funnel with streaming function plus interlayer in soil can result in fast salt leaching and markedly improve seedling rate of plant. This system can be applied in the field of landscape plant growing in the cities and restoration of saline-alkaline soil. |
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