The afternoon of January 25th，Shaanxi Land Engineering Construction Group Fuping Test Base。Zhang Weihua with colleagues，Conducting soil compaction test in the experimental field of Hollow Village soil return and improvement project。

Their ongoing “Integrated Demonstration of Key Technologies for Hollow Village Remediation in Mountains and Hills”，is the highest level scientific research project in the country - the National Science and Technology Support Plan Project。Starting from April this year，250 acres of field trials will be conducted in Chengcheng County，And extended to four to five thousand acres，In the end, it saved 850,000 acres for us、1 nationwide.Providing technical support for the comprehensive improvement of 1.4 billion acres of hollow villages。

This is just one of the many land consolidation research projects carried out by Shaanxi Land Construction Group。Transform low-yield fields into high-yield fields、Convert degraded and unused land into farmland、Recovering and utilizing contaminated land...as a company that specializes in dealing with land，Shaanxi Construction Group relies on its industry-leading technological strength，Continuously explore the best plan for land remediation，And use this as the "fulcrum"，Prying the useless land into useful、Useful becomes efficient，Bringing “sleeping” unused and contaminated land to life，For our province and even the country，Have found a successful way to develop land potential by relying on science and technology。

This laboratory is responsible dafabet loginfor the country’s highest-level scientific research plan

In the Shaanxi Construction Group Building located in Xi'an High-tech Zone，There is a basic experiment center，3000 square meters in the center，High-end professional equipment at home and abroad worth 8 million yuan，Just for research。

After sterile disinfection room，Enter the sample room。A dense cabinet occupying one side of the wall，Soil samples from all over the province are neatly arranged。

“The composition of soil is different，Consolidation degree、The firmness is different。Different projects require different soil conditions。What we do is to detect and analyze various components of the soil，According to different project needs，Prescribe a ‘prescription’，In order to accurately implement land consolidation experiments。" Experimenter Hu Ya said。

Here，A soil sample，Scientific researchers need to use various instruments、Going through various processes，strict testing、Research and Judgment、Analysis，Give the optimized formula，Then try again、Reanalysis...

Remove basic detection，Isotope measuring instrument worth 1.05 million yuan，Can determine the source of contaminated soil；A 10,000-level laboratory used to study and repair contaminated land，No more than 5 effective sedimentation bacteria per cubic meter；There is also the most advanced pure water meter in the world，Can remove more than 95% of the conductive medium in water...

What is happening here is the forefront of land scientific research。Subsequently，At Fuping Test Base，Experimenters will use the original soil to simulate the original scene，In different project areas，Carry out saline-alkali land transformation、Constructing ditches and creating land、Barren rock beach river management、A variety of land consolidation project tests such as hollow village reconstruction。After a trial period ranging from several years to one year，Another field demonstration，Final decision on whether it can be promoted on a large scale。

"We passed the early stage of land consolidation、midterm、Continuous detection in the later stage、Test、Analysis，Draw a convincing conclusion，Answer the many whys in land engineering，Thus finding the optimal solution to different land problems。" said Zhang Yang, director of the Provincial Land Engineering Research Institute。

These are just part of the "Key Laboratory of Degraded and Unused Land Remediation of the Ministry of Land and Resources" of Shaanxi Land Construction Group。This laboratory with a total investment of more than 100 million yuan，It is the largest research laboratory in the field of land in my country，Undertakes the country’s highest-level scientific research projects，Major achievements have been made in the fields of research on the remediation of degraded and unused land and the restoration of contaminated land。As of now，Apply new technology，Through the remediation of various types of difficult-to-use land，The cumulative area of ​​newly added cultivated land exceeds 2 million acres，Direct project savings of approximately 5 billion yuan，Provides practical methods for the remediation of various types of difficult-to-use and unused land at home and abroad。

dafabet login

dafabet mobile loginLiu Yuhai, General Manager of Yulin Zhongji Agricultural Development Co., Ltd.，Planning to install drip irrigation facilities in the potato plantation in Mengjiawan Village, Yuyang District after the beginning of spring。

Started from planting 650 acres of potatoes in Mengjiawan Village in 2011，Liu Yuhai’s planting area has been expanded to 20,000 acres，This year he plans to expand planting to another 4,000 acres。"Although there was a hailstorm last year，Production is a little lower，But the average potato yield per mu is 2500 kilograms，The output value per mu exceeds 4,000 yuan，The unit output value is much higher than that of the fertile cultivated land in Guanzhong。" Liu Yuhai said to reporters with satisfaction，These 20,000 acres of land used to be barren sandy land with nothing growing on it。

Turn sandy land into fertile farmland，Benefited from the promotion and application of Shaanxi Construction Group’s “Mu Us Sandy Land arsenic sandstone and sand compounded into soil, sand fixation and land creation technology”。

The most common ones in the barren Yulin Desert are arsenic sandstone and sand。The former is easy to harden，Hard as stone when dry；The latter is ventilated、Water leakage、Leaking fertilizer。The scientific research team of Shaanxi Construction Group has gone through repeated trials，Using the opposite properties of two substances，Using local materials，Mixed in different proportions，Successfully created fertile land in the sand，Added more than 70,000 acres of grain fields to northern Shaanxi，Application promotion 200,000 acres。Compared to the previous trips to the Loess Plateau to pull soil and cover sand to create land，Project savings of about 7,000 yuan per mu。

This technology has reached the international leading level，Breaking the "forbidden zone" where it is difficult to grow even a blade of grass in the desert, let alone grow food，Provided technical support for the transformation and management of 5.3 million acres of sandy land in Yulin and similar sandy areas at home and abroad。

Sand land reclamation is one of the “housekeeping” technologies of Shaanxi Construction Group。In the view of Han Jichang, general manager of the group，Shaanxi has more than 5 million acres of unused land available for development，More than 10 million acres of saline-alkali land can be improved。“Can be transformed through engineering，Scientific use of land，Realize land economy、Maximizing ecological benefits。”

With their efforts，Through the implementation of land consolidation projects，Conclusions revised one by one: saline-alkali land management，The main focus will be "row" to "storage"，Avoiding the waste of water resources caused by "drainage and salt washing"、Downstream water pollution、Problems such as large project volume，Directly manage more than 80,000 acres of saline-alkali land，Save 370,000 acres for us、my country 5.Providing technical support for the development and management of 200 million acres of saline-alkali land。

Through multiple comparison tests，Through multiple comparison tests，The best soil covering solution of 50-60 cm was found，Solved the problem in dafabet mobile loginthe past by relying on experience，cost money、effort、The problem of poor performance...

Make useless useful，Making usefulness efficient，Shaanxi Land Construction Group relies on technology to open up "forbidden areas" for land use，Turn "wasteland" into beautiful things，Provides land security for Shaanxi’s economic development and food production security。

Control contaminated land and ensure food security

Food security issues，Inseparable from the land。And land pollution，Is becoming a new challenge facing my country’s cultivated land protection。

According to the "National Sustainable Agricultural Development Plan (2015-2030)"，External pollution such as industrial "three wastes" and urban life spread to agriculture and rural areas，Cadmium、Mercury、Heavy metals such as arsenic continue to seep into the environment where agricultural products are produced，The national soil major pollutant point exceedance rate is 16.1%。Serious endogenous pollution in agriculture，Fertilizer、Pesticide utilization rate is less than one third，Agricultural film recycling rate is less than two-thirds。

Overseas research on contaminated land treatment has been conducted for hundreds of years。The United States as early as more than 20 years ago，There is a professional exchange conference on this aspect。The treatment of contaminated land in our country has just begun，Future，The main research direction of Shaanxi Land Construction Group includes contaminated land treatment。

April this year，The "China-US Land Engineering Exchange Conference and Defiled Land Seminar" will be held in Xi'an for the first time，Shaanxi Land Construction Group is the organizer。“The contaminated land treatment market has great potential，We have been conducting research for more than two years，This year we plan to carry out a land oil pollution control pilot project in northern Shaanxi。"Han Jichang said。

Land consolidation project driven by technology，Inseparable from the support of talents。Today，Shaanxi Land Construction Group and MIT、The University of South Australia and other world-class engineering schools have established close cooperative relationships，Accelerate the improvement of the scientific and technological level of land consolidation，Especially the first land engineering college in my country built in cooperation with Chang'an University，will provide a steady stream of talent and technical support to the land consolidation industry。

“The rise of an industry requires the support of a professional team。We hope to train 1,000 to 2,000 high-level land engineering professionals，Making most of them become industry leaders in this discipline in 10 or even 15 years。"Han Jichang said。