China News Agency, Baicheng, October 1st, question: Four generations of scientific researchers of the Chinese Academy of Sciences are relaying "green fences" for black soil granaries
China News Agency reporter Guo Jia
The western part of Jilin is the concentrated distribution area of China's soda saline-alkali land. For a long time, the strong wind has transported the saline-alkali land to the east, threatening the typical black soil area in the central part.
For more than 20 years, four generations of researchers of the Chinese Academy of Sciences have been committed to using technology to build a "green fence" to protect the safety of the large granary in the Black Earth Plain.
Recently, Wen Bolong, an associate researcher at the Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, has been very busy.
In the saline-alkali land test field in Zhenlai County, Jilin Province, he and his team fished the crabs in the field and sent them to third-party experts to measure their yields. This step determines whether the comprehensive utilization model of the entire saline-alkali paddy field-wetland system can form a "perfect closed loop".
"The yield of crab seeds in the experimental field is 77 kg/mu, and the size is 140 crabs/kg. They are in good growth, strong vitality, neat height, clean bottom plate and full fatness." The results of the production test made Wen Bolong's brows stretched out.
The ecological environment in western Jilin is complex and fragile. Academician Liu Xingtu of the Northeast Institute of Geography, Chinese Academy of Sciences and other four generations have created a large number of achievements here, such as ecological fishery in saline-alkali wetlands, utilization of reed resources, and the combination of cultivation and breeding of saline-alkali paddy fields. Rich utilization.
However, there are still many difficulties in the promotion of scientific and technological achievements and governance models to a wider range.
"The biggest difficulty in this is the problem of governance subjects. Compared with the overall promotion of the government, it is a long-term solution to mobilize enterprises, cooperatives and farmers to actively invest in the management and utilization of saline-alkali land." Wen Bolong said, this is also the transformation and application of the entire scientific research results. the last link.
On the 3,300-mu experimental field tested this time, Wenbolong and his team have jointly demonstrated with leading enterprises through "the cultivation technology of soda saline-alkali water type crab seed" and "the improvement and utilization technology of soda saline-alkali land by promoting nutrition", saving cost and increasing efficiency. Realize the balance between input and output of saline-alkali land improvement.
Ge Jun, general manager of Zhenlai County Huihui Agricultural Science and Technology Development Co., Ltd., who undertook the test and demonstration, said that the yield measurement results exceeded expectations. Reeds and other vegetation have grown in the abandoned saline-alkali land, and crab manure and residual bait can also increase soil fertility, while improving soil. Improve the efficiency of water resources utilization and obtain breeding income.
Wen Bolong introduced that, at present, there are still millions of mu of saline-alkali land in western Jilin with conditions for irrigation and drainage, which needs to improve the efficiency and quality of development and utilization.
The comprehensive utilization of these saline-alkali lands will be greatly promoted by means of raising income by means of promoting cultivation and reforming and combining planting and cultivation.
In recent years, the saline-alkali land ecological restoration technology of the Chinese Academy of Sciences has been widely used in western Jilin. Thousands of hectares of saline-alkali land represented by the Da'an Niuxin Hedge National Wetland Park have gradually been restored to concentrated contiguous wetlands where reeds sway and water birds gather.
Wen Bolong told reporters that, in a sense, the ecological restoration in the western part of the Songnen Plain is like putting a "green fence" on the main grain-producing areas in the central part, blocking the invasion of wind, sand and salinity in the west, and adjusting the storage capacity. Flood resources, played the role of ecological barrier.
"Post-80s" Wen Bolong has been rooted in the western part of Jilin for 14 years and is the backbone of the third-generation team. Now, the younger fourth generation is here.
Under the setting sun, Wen Bolong and their busy figures are looming in the reeds.
(Finish)