The sampling completion exceeds 90%!"Soil Sanpu" Gaozhou pilot foreign industry survey sampling sampling steadily advanced

"The task of our sampling team in this pilot census is basically close to the end. Through the soil census, the basic situation of the soil in the investigation area can be mastered in detail to lay a good foundation for the construction of high -standard farmland in the future." The director Cheng Jiong wiped the sweat on his head, and he couldn't care about the wet clothes to guide the members of the sample team to classify and mark the samples of the 768 garden sample.

Since July 30, the third national soil census pilot foreign industry survey sampling was officially launched in Gaozhou, Maoming, Guangdong Province. The team (hereinafter referred to as the work team) rushed to the forest and the field to investigate and sample the local 1619 samples.

Recently, a reporter from the Rural Daily of Southern China went to Gaozhou to follow up with the progress of various work teams. According to the relevant person in charge of the Provincial Agricultural and Rural Department, the overall sampling progress of the work team exceeded 90%, and the sampling tasks have steadily advanced.

It is reported that all the work teams who served as the sampling task are led by professionals. The members have been sampled in strict accordance with the requirements of the technical regulations after preliminary training and assessment.

Cheng Jiong, Institute of Ecological Environment and Soil, Guangdong Academy of Sciences

"Within the preset sampling point electronic fence range, you must choose a representative area, and choose methods such as plum blossoms, chessboard methods or snake types (at least 5 mixed samples) to mix the samples." In the secondary sampling task, there were a total of 1023 garden samples. The surface sampling of this type of ground layer was mainly divided into five steps, including navigation entered the preset sampling point electronic fence, mixed sample setting, surface soil mixed sample collection, surface soil reckless samples Collection of collecting samples for large gathering of soil water stability.

At the sampling site, Cheng Jiong explained to the players for the precautions of various steps. For example, in the collection of soil mixed samples on the surface, the soil surface should be set as much as possible to facilitate the observation and take pictures; When samples, you should avoid being squeezed as the first principle ...

"This time (Gaozhou) pilot sampling tasks encountered a lot of difficulties. On the one hand, traffic problems were in the mountains and forests. Sometimes the car could not drive up, only the weather, the second is the weather. It will delay samples to a certain extent, "despite facing a lot of challenges, Cheng Jiong said that as long as the weather is not bad, the team will meet the difficulties, not afraid of the wind and rain, and complete the task on time.

Associate Professor of South China Agricultural University Guo Yanbiao

At the open cultivated land, Guo Yanbiao, an associate professor at the School of Resources and Environment of South China Agricultural University, is leading the team to collect the cultivated land samples.

"Check out the working bottom diagram, the geology, and terrain map of the regional point, clarify the type of soil, and prepare the work well, and there will be a lot of confusion at the scene." , Watch, do, and check the four steps, that is, prepare, on -site inspection, sampling, and inspection after the end.

Guo Yanbiao introduced that the collection of samples on the surface layer of cultivated land mainly includes the collection and handheld terminal filling in soil samples. Among them, verifying the type of soil is particularly important. He suggested that if necessary Each sampling team should try to avoid the time of drowning of rice as much as possible to ensure smooth sampling.

Zhu Hangyong, senior engineer of Guangdong Academy of Forestry

"In order to facilitate the climbing of the mountain, we all carry back bags and use portable short -range equipment." In the eucalyptus forest near the county road, Zhu Hangyong, a senior engineer of the Guangdong Forestry Science Research Institute, led the sampling team to use shovels in the steep hillside Shooping out of the temporary settlement, exploring the road to the sampling point. He introduced that due to the special terrain, the selection of forest land samples generally adopts the "S" type, which are selected at the top of the center sampling point and the position below. At a sample point, the upper and lower span is about 30 meters.

It is understood that a total of 118 sampling points in this forest land sampling task have been completed. At present, more than 100 sampling points have been completed. Zhu Hangyong said that due to the bad weather such as the forest land, the collapse is prone to occur. In order to ensure the smooth completion of the sampling task, the team will always pay attention to the weather and rush to grab the time sampling before the weather comes.

In addition, the sampling operations of soil biological survey pilots have gradually come to an end.

【Reporter】 Chen Dijie

【Source】 South China Rural Report

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