| A study on seedling growth and soil nutrient spatial variations of Lycium ruthenicum in different habitats |
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| DOI：10.7606/j.issn.1000-7601.2019.02.14 |
| Key Words: Lycium ruthenicum seedling growth habitat physical and chemical properties of soil |
| Author Name | Affiliation | | GUO You-yan | Key Laboratory of Hexi Corridor Resources Utilization of Gansu, Zhangye, Gansu 734000, China
Lycium Ruthenicum Engineering Center of Gansu, Zhangye, Gansu 734000, China | | NIE Hai-song | Tokyo University of Agriculture and Technology Graduate School of Agriculture, Tokyo 183-8509, Japan | | YU Hong-yuan | Key Laboratory of Hexi Corridor Resources Utilization of Gansu, Zhangye, Gansu 734000, China | | KONG Dong-sheng | Key Laboratory of Hexi Corridor Resources Utilization of Gansu, Zhangye, Gansu 734000, China
Lycium Ruthenicum Engineering Center of Gansu, Zhangye, Gansu 734000, China | | ZHANG Ya-juan | Key Laboratory of Hexi Corridor Resources Utilization of Gansu, Zhangye, Gansu 734000, China |
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| Abstract: |
| In order to provide theoretical basis to population restoration and sustainable growth of Lycium ruthenicum, we studied the seedling number, growth conditions, biomass allocation，spatial variability of soil nutrient, and the effect of environment factors on Lycium ruthenicum seedlings growth under various growth environments. By using sample plot investigation method, the Lycium ruthenicum growth was investigated in various habitats such as field bund, irrigation canal side, saline sandy soil, and salty land in Ganzhou District, Linze County, Sunan County, and surrounding areas of city of Zhangye in 2016. The results showed that the seedlings distributed in all habitats, and the number of the seedlings in the field bund was the greatest among all habitats i.e. 66.67%, 122.22%, and 215.79% of that in canal side, saline sandy, and salty land, respectively. The growth characteristics varied among habitats. The seedlings in the field bund were mainly growth in height while that in saline sandy were mainly the growth in crown. In salty land, the seedlings were mainly the growth in stem diameter. The organic matter contents in 0~20 cm soil layer in field bund increased 28.50%, 2.62%, and 10.13%; total N increased 44.08%, 33.16%, and 72.41%; and available N increased 46.81%, 0%, and 50%, over that in canal side, saline sandy, and salty land, respectively. It is shown that the air humidity and soil moisture contents had significant effects on seedling numbers and growth. It is concluded that water management in the seedling stage is an important mean for the production of Lycium ruthenicum. |
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