Arrangement of High-standard Basic Farmland Construction Based on Village-region Cultivated Land Quality Uniformity

Abstract

As an important constitute of land consolidation, high-standard basic farmland construction is an important means to protect the quantity, quality and ecological environment of cultivated land. Its target not only lies in the increase of cultivated land quantity, but also the improvement of cultivated land quality, agricultural production conditions and ecosystem environments. In the present study, the quality evaluation method and construction arrangement of cultivated land were explored to facilitate the process of decision-making and implementation for high-standard basic farmland construction (HSBFC) with administrative village as the unit. Taking the land comprehensive improvement project area in Quzhou County, Handan City, Hebei Province as a case study, the whole process of the study comprised of three steps: 1) establishment of the evaluation model of cultivated land quality uniformity based on regional optimum cultivated land quality, and construction of the uniformity evaluation index system from the aspects of soil fertility quality, engineering quality, spatial quality and eco-environment quality, according to the new concept of cultivated land quality; 2) calculation of cultivated land quality uniformity by grading indicators, assigning scores and weighting sums, exploring the local homogenization characteristics of regional cultivated land quality through spatial autocorrelation analysis, and analyzing the constraints and transformative potential of barrier factors; 3) arrangement of HSBFC according to the principle of concentration, continuity and priority to the easy operation. The results revealed that the value of farmland quality uniformity for the administrative villages in the study area was between 7.76 and 21.96, and there was a difference between various administrative villages. The regional spatial autocorrelation patterns included High-High (HH), Low-Low (LL), High-Low (HL) and Low-High (LH). These indicate that regional cultivated land quality has local homogenization characteristics. The most restrictive factors in the study area were the medium and low transformation difficulty indexes, including soil organic matter content, farmland shelterbelt network density, field regularity and scale of the field. In addition, there were also high transformation difficulty indicators in some areas, such as sectional configuration. The project area was divided into four partitions: major construction area, secondary construction area, general construction area, and conditional construction area. The cultivated land area of each subarea was 1538.85 ha, 1224.27 ha, 555.93 ha, and 1666.63 ha, respectively. This comprised of 30.87%, 24.56%, 11.15% and 33.42% of the total project area, respectively. The evaluation model and index system could satisfy the evaluation of farmland quality and diagnosis of obstacle factors to facilitate the subsequent construction decision. The present study provides reference for the practice of regional HSBFC, and a new feasible idea and method for related studies.

The Differentiation in Cultivated Land Quality between Modern Agricultural Areas and Traditional Agricultural Areas: Evidence from Northeast China

“…Generally, CLQ has been defined as the ability to meet agricultural production's sustainable output and quality safety [35,62]. Based on the fundamental characteristics of cultivated land elements, processes, and functions, this paper defines cultivated land quality as a form of comprehensive productivity that comprises four aspects: fertility quality, project quality, landscape quality, and ecological quality [48,62].…”

“…However, engineering measures can guarantee a high and stable yield from high-standard cultivated land regardless of drought and flood from a modernized agricultural standpoint [44,45]. Notably, to transform medium-and lowyield cultivated land into high-standard cultivated land, China has implemented a master plan for said high-standard cultivated land, and has promoted the protection of the quantity, quality, and ecology of cultivated land [46][47][48]. As of 2021, more than 53.33 million hectares of concentrated contiguous high-standard cultivated land with a sound ecology have been developed [49].…”

Comprehensive Evaluation of Cultivated Land Quality at County Scale: A Case Study of Shengzhou, Zhejiang Province, China

“…The quality of cultivated land, that is, the land status and conditions [10]. Scholars used to consider soil fertility, climate and environment as the main indicators to evaluate the quality of cultivated land [11]. With the development of social economy, people's perception about the concept and connotation has changed, not only the soil fertility, but the land suitability, potential productivity and ecological environment security [10].…”

Spatial Structure Characteristics of Slope Farmland Quality in Plateau Mountain Area: A Case Study of Yunnan Province, China

“…Due to the difference of cognition and evaluation purpose of cultivated land quality, the index system proposed by different researchers is quite different, and the index classification and screening criteria are not unified [7,22]. From the existing research, soil fertility, climate and environment are usually taken as the main indexes to evaluate the farmland quality [23]. For example, Xia et al [24] extracted farmland quality factors by a Ggaofen-one remote sensing satellite, thus, establishing the farmland quality evaluation index system based on the satellite image.…”