Hang Chen

• Ph.D
• China University of Mining and Technology

Farmland expansion, including area and pattern, has become one of the main manifestations of global land use change during the last century. Since the reform and opening up, Heilongjiang Province has experienced a constant expansion of farmland, mainly in Songnen Plain (SNP) and Sanjiang Plain (SJP). However, the spatial–temporal heterogeneity of f...

The slope is an important objective attribute of farmland that changes with the evolution of its spatial pattern. A growing area of plain farmland is being occupied by built-up land owing to rapid urbanization, while the newly added are sloping and terrace farmland under the constraint of the requisition–compensation balance. Researchers have focus...

Root damage is a critical ecological issue affecting vegetation in semi-arid underground coal mining areas. The mechanisms and influencing factors of root stress damage induced by stress changes in the root-soil layer due to mining-induced rock mass fracturing require further investigation. This study establishes a numerical model of root stress da...

Changes in crop mix significantly affect the carbon emissions from cropping systems, thus underscoring their importance in achieving sustainable agriculture development. This article aims to offer new insights into the relationship between crop mix changes and carbon emissions from cropping systems. Based on provincial statistical data on crop prod...

Soil pH is a crucial indicator which greatly reflects the cultivated land fertility. Exploring its spatial distribution characteristics and influencing factors is essential for the sustainable utilization of cultivated land. This study characterizes the spatial distribution and influencing factors of pH value of cultivated land in Sichuan Province,...

Coal mining has contributed to a solid and stable global economy. Surface mining and underground mining are the principal methods for extraction of coal worldwide and given the developments in mining technology and equipment, these methods are increasingly generating more and more coal. Surface mining is also a subject that cannot be overlooked in...

Developing low-carbon utilization of cropland is critical to coordinate agricultural production and environmental protection. Based on a theoretical analysis of greenhouse gas (GHG) emissions and crop production, this study examined the GHG emissions from cropland utilization in China and the decoupling process from crop yields with consideration o...

Many coal mining areas overlapped with agricultural land in the world. However, surface subsidence and waterlogging brought on by coal mining inexorably harm the agricultural land. Soil moisture can reflect the variation of mining impact significantly according to the geographic features of the high underground water table, which shows significant...

Knowledge about the spatial-temporal pattern of cropland abandonment is the premise for the management of abandoned croplands. Traditional mapping approaches of abandoned croplands usually utilize a multi-date classification-based land cover change trajectory. It requires quality training samples for land cover classification at each epoch, which i...

Assessing changes in the extent and intensity of cropland use is essential to understanding the processes underlying agricultural development. However, our knowledge of the spatiotemporal dynamics of cropland intensification, and how they connect to the livelihoods of rural households, is currently limited. This paper aims to quantify key component...

The abandonment phenomenon is familiar in China. It threatens food security and seriously affects the sustainable development of society, the economy, and the natural environment. However, monitoring and mapping abandoned cropland on a large scale remains a challenge because of its complex land-use change process. According to the World Food and Ag...

Farmland abandonment, a widespread phenomenon during land-use transition, leads to a cycling or vanishing evolution of farmland resources. As urbanization advances, an increasing number of agricultural laborers migrate from rural to urban areas, causing ongoing farmland abandonment. However, in contrast to the abandoned information extraction and d...

Understanding farmers’ participation is crucial for achieving an effective impact on rural living environmental governance and promoting sustainable development. Taking Sandu Town in eastern China as a case study, in-depth semi-structured interviews with farmers, village cadres, and town managers were conducted in this study. Then, a conceptual fra...

Open-pit coal mining plays an important role in supporting national economic development; however, it has caused ecological problems and even seriously impacted regional ecological stability. Given the importance of maintaining ecological stability in semi-arid coal mining areas, this study used a coupling coordination degree approach based on the...

Agricultural work causes changes in land use at the largest scale among human activities, and the related research has focused on the reclamation of natural land. However, given the impact of improvements in the efficiency of production along with urbanization and population migration, farmland marginalization (FM) has emerged as an important means...

The existing evaluation system of cultivated land quality mainly considers the natural quality and utilisation conditions, but without sufficient emphasis on ecological environment, which can’t meet the requirements of the trinity pattern protection policy. This study, using GIS spatial analysis and multifactor comprehensive evaluation method, cons...