1.8 billion acres of cultivated land，Is the lifeline of food security for the Chinese nation。General Secretary Xi Jinping made a profound statement: “The Chinese people’s jobs must be firmly in their own hands at all times。”

Enter the new century，my country’s food imports continue to grow。The superficial reason for the increase in staple food imports is the shrinking price gap between domestic and foreign food，The underlying reason is that our country is not sophisticated or thorough in the utilization of degraded and unused land。

To solve this problem，In 2011, the Ministry of Land and Resources established the Key Laboratory of Engineering Remediation of Degraded and Unused Land at Shaanxi Real Estate Development Service Corporation (the predecessor of Shaanxi Land Engineering Construction Group)。Four years，The laboratory takes technological innovation and engineering demonstration of degraded and unused land remediation as the entry point，Passed test、Scientific demonstration and engineering promotion，Achieved key breakthroughs in some weak links and problems。

Precision management, the beginning of a new technological era in the land system

Enter the basic experimental center of the Key Laboratory of Degradation and Unused Land Engineering Remediation of the Ministry of Land and Resources located in Xi'an High-tech Zone，It feels a bit subversive dafabet loginof conventional understanding。

This soil comes from the Mu Us Desert, 700 kilometers away;

This bottle of water comes from the salt-alkali land of Lubotan, 40 kilometers away;

……

In the sample room of the experimental center，Soil and water samples from all over the province are neatly stacked。

For a soil sample，More than ten scientific researchers have instruments one by one，Process after process，Strictly testing、Research and Judgment。final，Analyze what’s in the soil、Something is missing，Give optimized formula，Try again、Reanalysis...

In a laboratory specially set up for the restoration of degraded land，Fieldspec4 high-resolution ground object spectrometer and other instruments，Undertakes the task of testing the restoration of various types of degraded land，Such as rapid monitoring of salinized land、Soil Erosion Monitoring。

In the Land Consolidation Engineering Laboratory，You can see the civil engineering、Common equipment for water conservancy and other engineering tests，For example, eight-link fully automatic pneumatic consolidation instrument、Sanlian high and medium pressure consolidation instrument, etc.。These instruments will be used for soil mechanics testing of land consolidation projects、Fill settlement measurement、Determination of slope stability slope and stability angle。

“Never feel that treating a soil sample in such detail is too tedious，Land engineering regulation is a science，The basis is such detailed scientific research。”General Manager of Shaanxi Land Engineering Construction Group、Han Jichang, director of the laboratory, told reporters。

Four years of development，Key Laboratory of Engineering Remediation of Degraded and Unused Land，Not only owns the Fuping test base，Basic Experiment Center，There is also Lubo Beach、Yulin、Yan'an、Chengcheng、Huayin Bailongjian、Six field scientific observation and research stations including Qinling Mountain in Hu County。

"Completion of the laboratory，marks that land engineering scientific research has been dispersed、Chaos to the system、Orderly、Development in depth，This is an amazing turn。For land systems，means the beginning of a new technological era，will further solidify the foundation of land management。” Wang Weihua, Director of the Shaanxi Provincial Department of Land and Resources, while affirming the work of the key laboratory，Having high hopes for land engineering scientific research。

Technology integration, land consolidation technology is written on the land

“This is a ‘laboratory’ built on the earth，A laboratory that writes key technologies for land remediation on the earth。" Liu Yansui, a researcher at the Institute of Geography, Chinese Academy of Sciences, a co-construction unit of the key laboratory, said this in an interview with a reporter from the "Land and Resources News"。

Indeed，With this laboratory，The Provincial Land Construction Group has truly become the vanguard of domestic dafabet mobile loginland engineering research。Produced authoritative scientific research results one after another in the field of land consolidation engineering。

The "storage-based" management model of saline-alkali land - the results have reached the international advanced level，Won the first prize of Shaanxi Province Science and Technology Award in 2010 and the first prize of Shaanxi Province Agricultural Technology Promotion Achievements in 2012，Opened up a new way to manage severe saline-alkali land，Government area Weinan、Yulin，Direct governance 8.130,000 acres，Added 7 new farmland.640,000 acres。

The new technology of "combining arsenic sandstone and sand to form soil, fix sand and create land" - the results have reached the international advanced level，Won the first prize of Shaanxi Provincial Science and Technology Award in 2012 and the first prize of Land and Resources Science and Technology Award in 2014，Directly govern about 12.80,000 acres，About 120,000 acres of new cultivated land，The promotion of the results provides technical possibilities for the ecological management of 5.3 million acres of sandy land in Yulin, Shaanxi and the resource utilization of arsenic sandstone。

“Integrated Technology for Comprehensive Remediation of Abandoned Rural Homesteads” – the results have reached the international leading level，Won the second prize of Shaanxi Provincial Science and Technology Achievement Award in 2010 and the first prize of Land and Resources Science and Technology Award in 2013，Directly manage 50,000 acres of land，New cultivated land 4.60,000 acres，1 for the whole country.Providing technical support for the comprehensive improvement of 1.4 billion acres of hollow villages。

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These years，Sand wasteland managed by the cumulative promotion and application of the Group’s scientific research results、Gravelland、Barren grassland、Gravelland、Gutterland、The total land damaged by water is more than 2 million acres，Increase agricultural income、Contributed to industry technological progress and economic development。

Shaanxi’s urban construction has gradually embarked on a path of “supporting learning through industry”、“Promote research through production”、A new way of “research and study to promote production”。

New challenge，3.1 million acres of high-standard fertile land will be added in the next five years

With the improvement of the laboratory's ability to transform scientific research results，The strength of the Land Construction Group is also constantly improving。

September 29，School of Land Engineering of Chang'an University was established，Signs that land engineering is recognized by more and more people，It also further realizes the efficient use of cultivated land in Shaanxi，Provides technical support and talent support。

Meanwhile, new challenges await the team.

For the upcoming “Thirteenth Five-Year Plan”，The Shaanxi Provincial Department of Land and Resources proposed five major land consolidation projects:

Yulin tons of grain field project，Other grasslands dafabet loginsuitable for farming、Create 1.1 million acres of grain fields from sandy land and other unused land，660,000 acres of dry land，440,000 acres of irrigated land。Investment estimate 23 billion yuan。

Yan'an Land Consolidation Project，Other grasslands suitable for farming、Reclamation of unused land such as barren mountains and abandoned villages、Reclaim 300,000 acres，180,000 acres of dry land，120,000 acres of irrigated land。Investment estimate 6.3 billion yuan。

Weibei Nuangyuan District Land Remediation Project，Comprehensive renovation of 1 million acres of other grasslands and abandoned villages，300,000 acres of new dry land，700,000 acres of irrigated land。Investment estimate 25 billion yuan。

Conversion of dry land to paddy fields in the Greater Xi'an area project (also wetland)，On both sides of the Wei River and the tributaries of Nanshan Qinling Mountains，For 500,000 acres of existing dry land with water source conditions，Through farmland transformation and water diversion、Construction of water withdrawal facilities，Built paddy fields and wetlands。Investment estimate: 10 billion yuan。

Yanhuang Paddy Field and Wetland Project，Comprehensive improvement of 200,000 acres of tidal flats along the Yellow River，Investment estimate: 7 billion yuan。

The total implementation scale of the five major projects is 3.1 million acres，Estimated total investment is 71.3 billion yuan。

After project implementation，The farmland in these places will have "blocks、platoon、irrigation、Storage” function，Reached "Tian Chengfang、LUChengwang、Waterlogging drainage、Communication、Canal connection、Scale、Waterlogging drainage、Standards of ensuring bumper harvest despite drought and flood，Realize the mechanization of agriculture、Scale、Intensive management。Shaanxi Land Construction Group, a technological leader in land engineering construction，We will effectively implement the policy of balancing farmland occupation and compensation，Perform the responsibility of protecting farmland with due diligence，To achieve a prosperous Shaanxi、Harmonious Shaanxi、Making new contributions to beautiful Shaanxi！