分类目录归档：潭影录

GeoBBC、博士后、博士生、潭影录、硕士生

Field Trip to Hani Terraced Fields

🌾Journey to the Hani Terraces
From October 23 to November 2, 2025, the “Soil Excavation Team” composed of Fan, Xiao, Yuxin, and Hangyi, conducted fieldwork at the Hani Terraced Fields in Yuanyang County, Yunnan Province.

Recognized as a UNESCO World Cultural Heritage Site, the Hani Terraces are a masterpiece of human wisdom and nature’s artistry. For more than 1300 years, generations of Hani people have sculpted the mountainsides into cascading paddy fields, nourished by a centuries-old forest-village-terrace-river ecosystem that still thrives today.

Figure 1. Hani Terraces: morning mist, sunset glow, and sea of clouds（Photo by Hangyi）

🌱Digging into the Terraced Earth

Over several days of fieldwork, the team ascended from the lush valleys at 800 m to the misty ridges at nearly 2000m, collecting paddy soil profiles along the way. Each layer of soil tells a story about how carbon accumulates, transforms, and moves within this centuries-old agricultural landscape.

The samples will be used to analyze soil organic and black carbon contents and isotope compositions, shedding light on carbon cycling processes and contributing to understanding the climate resilience of traditional farming systems.

Figure 2. Sampling sites

Figure 3. Field Sampling workflow: site inspection, soil profile excavation, parameter measurement, and sample preparation

👣Challenges, Smiles, and Stories Along the Terraces

The slippery terraces, steep trails, and sudden mountain mists made the fieldwork challenging. Yet every shovel of soil, every set of measurements, and every laugh shared on the rice paddies make the journey worthwhile.

We are especially grateful to the Hani farmers and village committees for their warm support. Their stores about traditional irrigation and terrace management helped us appreciate the enduring vitality of this landscape.

Figure 3. Fieldwork Shadows

From left to right: Xiao, Fan, Hangyi, Yuxin, and the Hani terrace guide

（Written by Jiangfan）

合作交流、潭影录

Prof. Kevin Jones visit GIG

From September 15 to 17, Professor Kevin Jones visited our group. On September 16, he delivered an insightful lecture on passive sampling of organic chemicals across different environmental matrices, with particular emphasis on the application of DGT for detecting these compounds in water. Although Professor Jones is a familiar guest to us, his presentations are always refreshing, and we consistently gain new knowledge from his insights. His visit not only provided a valuable learning experience but also offered fresh perspectives for advancing our research on environmental monitoring.

Shizhen with her two mentors in front of their joint publications.

Prof. Gan was giving an opening.

Prof. Kevin Jones was giving a academic presentation.

Heated discussion followed.

合作交流、学术会议、潭影录、职工

The 16th SETAC Latin-America meeting

On August 25-September 6,  Shizhen and Gan were invited to attend the 16th SETAC Latin /America meeting, which was held in Lima of Peru. They also formally visited the National Agricultural University of Peru, to deliver lectures and discuss about potential collaborations. This is their second visit to South America. Shizhen gave a talk on the SETAC meeting on tire-wear particles and microplastics, which attracted lots of attention. Gan had to man a poster prepared nicely by Yuwei, on HV-POPs. Gan met his old friend, Professor Ricardo Barra who is a ‘big name’ for POPs research in South America and Chili , to recall their last meet at Seoul some 12 years ago. Upon the invitation, as planned, of Professor Litveth, Gan gave a lecture over the staffs and students of the National Agricultural University, introducing the environmental research in SKLAET-GIG, with particular promotion of our long-term efforts on global atmospheric monitoring of POPs in developing countries. In between the academic meetings, we also take chance to visit the Peru plateau of the Andes （安第斯山脉的秘鲁高原）where there are exciting historical relics and spectacular natural sceneries. One of our main targets was the ancient terraced crop field left by the Incas（古印加人）, some last for hundreds and even more than a thousand years.  It was a pity that, as these ancient fields are strictly protected, we were not able to collect soil samples for Jiang Fan’s study. However, Professor Litveth happily offered help to us with this topic in future collaboration. Notwithstanding, we succeeded in collecting a few saline water samples from an ancient Inca salt field.  Despite the tough experience in the long trans-continent flights, it does is a great and enjoyable trip.

At the main venue of the SETAC meeting.

Shizhen gave an oral presentation on TWPs.
The microplastic session presenters.
Manning the poster prepared by Yuwei.
Gan met his ‘old’ friend, Professor Ricardo Barra of Chili
Met with Dr Arias Andres who is the representative of Argentina to the Stockholm Convention and the Plastic Convention negotiation. He once worked with Roland Weber.
The National Agricultural University of Peru.

Lecture in National University of Agriculture.
Presenting our gift to Professor Litveth, who is the dean of Chemistry School and an environmental scientist.
The lecture attracted many students, signifying the powerful impact of China
The national flower of Peru.
A countryside girl.
At a 4319 masl mountain path on the Peruvian plateau
A site with ancient terraced paddy fields.
The Murray ancient agricultural experimental site of the Incas
A saline water sample collected at the ancient Inca salt-field.
The Secret Valley was one of the main agricultural areas of the Inca Empire.
Shizhen checked potential lichen samples on rocks on the Peruvian plateau.
Open biomass burning as a traditional agricultural practice on the Peruvian plateau.
Of welcoming ceremony of the SETAC meeting.