Golden autumn and September is the harvest season。But，When you see the endless expanse in front of you、Lush potato field time，It is difficult for reporters to imagine that this place is located in the Mu Us Sandy Land, which is severely ecologically degraded。

Mu Us Sandy Land，is the collective name for the sandy land in the southeastern part of the Ordos Plateau and along the Great Wall in northern Shaanxi。Mu Us with an area of ​​more than 70,000 square kilometers，Long-termly known as China’s “youngest desert”，There dafabet.com mobileare only a few oases scattered in places with abundant water sources。

A fellow expert from the Institute of Geographic Sciences and Natural Resources, Chinese Academy of Sciences told reporters，In the area，Arsenic sandstone and sand are collectively called "two evils"。

arsenic sandstone，Locals call it “red clay”，Also known as mudstone academically。The name "arsenic sandstone" is a common name given by local people based on its harmfulness。The arsenic sandstone will weather once exposed，It raises dust when exposed to wind，It becomes loose when exposed to rain，Loss of water，Called “environmental cancer”。According to statistics，1 taken away in the Yellow River every year.900 million tons of sand，A large part of it is arsenic sandstone。When the rain passes，It is as hard as stone。“Crops can’t be planted，It won’t grow even if you plant it。”The locals said。

Sand properties are loose，Leaking water and fat，Unable to form a granular structure of soil，And fly with the wind。It can be said，These two substances are the scourge of ecological degradation of local land resources。

In order to deal with the "two evils"，Shaanxi Real Estate Development Services Corporation、Three years of cooperation between the Institute of Geographic Sciences and Natural Resources, Chinese Academy of Sciences and Xi'an University of Technology，Jointly conduct research on the "Core Technology Research and Engineering Demonstration of Arsenic Sandstone and Sand Soil in Mu Us Sandy Land"，Making it possible to turn Mu Us Sandy Land into fertile farmland，And unfold a green scroll in some seas of sand。

The potato field the reporter saw，Benefited from the arsenic sandstone and sand-formed soil combination technology developed in this demonstration project。

This potato field is located in Dajihan Village, Yulin City, Shaanxi Province，In the Mu Us Sandy Land，In the past due to poor soil，Crop yield is very low。Land consolidation project in Dajihan Village，Starting from March 2010，Completed in October of that year，Added approximately 2,327 acres of cultivated land to Dajihan Village。This year，Dajihan Village planted potatoes (purple and white varieties) for the first time on the renovated land，It is expected that the average output of virus-free seed potatoes per mu will reach more dafabet mobile loginthan 3,000 kilograms，Fully double the potato output grown on the village’s cultivated land。

September 4，The "Core Technology Research and Engineering Demonstration of Arsenic Sandstone and Sand Soil in Mu Us Sandy Land" project successfully passed the project appraisal organized by the Shaanxi Provincial Department of Science and Technology。Identification experts, including academicians of the two academies, spoke highly of the project。

The appraisal committee believes，This project focuses on land development and improvement、Strategy to resolve the contradiction between economic development and land resources and achieve coordinated development of man and land，Use experiments、Test、Observation、Complete set of technical methods such as simulation，Material properties of arsenic sandstone and sand widely distributed in Mu Us Sandy Land、Conducted in-depth and systematic research and engineering demonstration on cementation and its soil-forming core technology，Achieved innovative results in four aspects。

First，This project discovered the complementarity of the two material structures of arsenic sandstone and sand in soil formation，Systematically carry out experimental research and field tests on arsenic sandstone and sandstone soil formation，Proposed a combination formula of arsenic sandstone and sand suitable for the growth needs of different crops；Secondly，Based on experimental and field trial studies，Proposed an efficient utilization model of water and soil coupling in ecologically fragile areas；

Part 3，Integrated and condensed the formula technology of arsenic sandstone and sand composite soil、Field configuration technology、Planning and design technology、Large-scale rapid land reclamation technology、Five technologies including water-saving and high-efficiency technology，Having formed a systematic and complete technical system for soil formation from arsenic sandstone and sand；final，This project innovatively implements standardization、Large-scale soil formation project，Turning the "two evils" of arsenic sandstone and sand into "one treasure" - efficient farmland，Successfully realized the resource utilization of sandy land，A new comprehensive land management model integrating water-saving, efficient, high-standard dafabet loginfarmland construction and modern management in the Mu Us Sandy Land has been formed。

Some appraisal experts also emphasized that，The originality and important promotion value of this project，Reached the international leading level of similar research。At the same time，Experts also suggest strengthening long-term tracking and monitoring of soil quality。

"Science Times" (2011-09-06 A2 Comprehensive)