Author: Zhang Jianxin
Source: Xinhua News Agency
A global problem of salina soil backfill for plants growing has been solved in China, after long-term practices by salina soil planting projects in the coastal areas inducing Tianjin Binhai District, Shandong Province, and Jiangsu Province, the results have shown that this technique can rapidly deline the salinity of the salina soil to below 0.3%, which will make the survival ratio of plants up to over 95%.
According to the experts attending the seminar of coastal protective forest -- salina integrated improvement and vegetation forming techniques, sponsored by MOA, so far 1,000,000 square meters of the Binhai planting area of salina soil have been completed by applying this technique.
Since 2002, Tianjin Hailin Horticulture and Environment Protection Technology Company and Beijing Forest University have established a Research and Development Center for production-education-research. They have developed a series of techniques about original soil backfill after improvement. This is called the salina physical-chemical- ecological integrated improvement and vegetation farming techniques, which has been granted a national invention patent.
This technique includes the measures of applying drains, leaching layers and sand holes, which can help the soil to get rid of salt, control the ground water level, prevent salt from coming back and build the good soil. In this way, we can turn the infertile salina soil into a land suitable to grow trees and grass.
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