Risk Assessment and Regulation Strategy of Farmland Marginalization: A Case Study of Mengjin County, Henan Province

Abstract

The marginalization of farmland is the progression of farmland utilization from high to low net profit, and the abandonment of farmland is its extreme form, and cultivated land marginalization is an important problem that needs to be properly controlled in the process of economic and social development. In this paper, cultivated land was extracted from the land database and evaluated from the aspects of natural suitability, farming convenience and farming opportunity cost, etc. By setting the combined weight of the three evaluation results and stacking them with the forest land extracted from remote sensing images, the potential risk range of cultivated land marginalization was identified, and an empirical study was carried out in Mengjin County, Henan Province. Results showed that: 1) the natural factors of cultivated land were stable and not easy to change, and the natural suitability was the basic condition that affected the marginalization of cultivated land. There was a spatial correlation between the natural suitability of cultivated land and the cultivation convenience, and the risk of marginalization of cultivated land with poor natural suitability and inconvenient cultivation conditions was higher. 2) The high-opportunity cost areas are mainly distributed in the inner suburbs of cities, and the cultivated land in this area is highly likely to be adjusted to high-benefit agriculture such as flowers, vegetables and sightseeing agriculture. Therefore, the risk of abandonment of cultivated land is less. 3) Adjusting cultivated land with poor natural suitability and inconvenient tillage conditions to forest land is conducive to the restoration of regional fragile ecology. Comprehensive improvement of cultivated land with high natural suitability but inconvenient tillage is an important way to delay the marginalization of cultivated land. This study provides a new idea for the formulation of farmland marginalization prevention and control policies at county level.

Spatial Heterogeneity in the Response of Winter Wheat Yield to Meteorological Dryness/Wetness Variations in Henan Province, China

“…Regions I and II are surrounded by the Taihang Mountains and the Funiu Mountains (Figure 1), and the high mountain terrain restricts the use of agricultural machinery [58]. Furthermore, the complex climate, poor quality of arable land and low level of irrigation in the mountainous areas have a combined effect on the production of winter wheat in both sub-regions [30,[58][59][60]. However, our finding is similar to that of a risk assessment of an agrometeorological disaster in Henan, which was the result of a combination of four main factors (hazard, exposure, vulnerability and restorability) [59].…”

Rice Terrace Experience in Japan: An Ode to the Beauty of Seasonality and Nostalgia

“…The abandonment of terraces is the extreme expression of the marginalization of farmland [87] and a significant challenge for the conservation of agricultural landscapes worldwide. As the most prominent theme in the rice terrace experience, the agricultural landscape is impaired and threatened by the increase in abandoned and neglected rice terraces.…”

Assessing farmland suitability for agricultural machinery in land consolidation schemes in hilly terrain in China: A machine learning approach

“…To address this and ensure the continued implementation of FCAM, the provision of more realistic subsidies should be considered by the government. According to the findings, FCAM would increase farmland area by 10%, and local governments in hilly and mountainous terrain should allow farmers to trade the excess farmland area as the source of funds for FCAM ( Guan et al., 2022 ). In addition, governments should encourage more farmers to participate in FCAM, as this could lead to the formation of an effective and sustainable financial support system for farmers.…”