Regulation and optimization of cultivated land in different ecological function areas under the guidance of food security goals-a case study of Mengjin County, Henan Province, China

Abstract

China’s arable land is facing the dual constraints of increasing “non-grain” and tightening ecological control. However, extreme emphasis on food production or excessive attention to ecological protection cannot effectively solve the practical problems of cultivated land utilization. In this paper, evaluation indexes were selected from the aspects of ecological service, landscape integrity, ecological sensitivity, etc., and ecological importance evaluation system for territory space was constructed. The ecological importance of territorial space was divided into three ecological functional areas, namely, the extremely important regions, the relatively important regions and the general regions. The morphological characteristics of cultivated land use in different ecological function areas were described systematically, and the main problems of cultivated land use in different regions were analyzed. On the basis of ensuring the ecological security of territorial space, this paper puts forward the regulation and control plan of cultivated land in different ecological functional areas aiming at food security, and makes an empirical study with Mengjin County as the case area. The results showed that: under the guidance of food security objectives, the implementation of different types of cultivated land remediation programs according to the problems existing in different ecological functional areas could guarantee food security to the greatest extent and amplify the ecological and environmental effects of land remediation. By means of land consolidation and ownership adjustment, the abandoned farmland in general and relatively important ecological regions can be restored for food use, which can not only enhance the food supply capacity, but also without causing damage to the ecological environment. There is a large area of arable land in the ecologically extremely important regions. Large-scale ecological conversion will have a certain impact on food security supply. Promoting ecological farming is an important way to resolve the contradiction between food safety production and ecological environment protection. This study can provide reference for decision making of arable land consolidation in the new period.

Optimization and classification control of permanent basic farmland based on quality classification

“…Vogel et al (2019) build upon existing approaches and propose a concept to evaluate individual soil functions with respect to the soil's intrinsic potential in contrast to its actual state (Vogel et al, 2019). Guan et al (2023) established a national spatial ecological importance evaluation system, systematically describing the morphological characteristics of farmland utilization in different ecological functional areas, and diagnosing the main problems in farmland utilization in different ecological functional areas (Guan et al, 2023). Therefore, scientific farmland evaluation provides a basis and guidance for basic farmland delineation and protection (Cheng et al, 2015).…”

Analysis of the spatial differentiation and driving force of arable land abandonment and non-grain in the hilly mountainous areas of Gannan

“…There is no uniform standard for arable land abandonment in the academic community, but it can be roughly summarized as "the behavior of farmers who fail to make rational use of arable land resources under the influence of multiple conditions, such as natural conditions and socio-economic conditions". In response to the phenomenon of non-grain arable land, Guan and other scholars regulate and optimize the layout of non-grain arable land from the aspects of ecological services, ecological sensitivity, etc., which alleviates the contradiction between agricultural development and environmental protection to a certain extent [ 16 ], and Zhu and other scholars predict the future non-grain arable land patches by constructing land use simulation models [ 17 ]. In terms of research methods, scholars have mostly used spatial autocorrelation analysis [ 18 ] to analyze the spatial and temporal distribution of the phenomena of arable land abandonment and arable land non-grain in the context of arable land abandonment and arable land non-grain.…”

Spatiotemporal evolution patterns and driving factors of arable land in Huaihai Economic Zone, China

“…In China, there are also numerous research results on arable land, including spatiotemporal distribution and evolution characteristics of arable land (Zhang et al, 2018;Chen et al, 2019b;Zhang and He, 2020;Xie et al, 2021b;Geng et al, 2021), evaluation of the arable land quality and evolution trend (Qin et al, 2020b;Xu et al, 2021), evaluation of arable land function and evolution characteristics (Yang and Tan, 2014;Qin and Wang, 2020a;He et al, 2020;Tang and Zang, 2021), transformation evaluation and evolution of arable land use function (Shi and Li, 2018;Ran et al, 2020;Miao et al, 2021), arable land and national grain security (Shan and Lai, 2011;Liu et al, 2019;Deng et al, 2021) and arable land consolidation (Guan et al, 2020;Wang et al, 2020). To determine the causes of the spatiotemporal evolution of arable land, numerous researchers have examined driving factors, such as the influence factors of the spatiotemporal evolution of arable land in karst mountain areas , the factors influencing the abandonment of arable land in major grain-producing regions (Zhou et al, 2021), and the driving factors of spatiotemporal variability of arable land fragmentation in mountainous and hilly areas of eastern Jiangxi province (Chang et al, 2021).…”