Zhang Jinxin, Geng Yiwei, Yin Chaohui, Deng Yaru, Ma Yuehong, Chen Weiqiang. Simulation of confirmed homestead consolidation using "potential constraint- probability choice"[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2022, 38(18): 264-273. DOI: 10.11975/j.issn.1002-6819.2022.18.029
    Citation: Zhang Jinxin, Geng Yiwei, Yin Chaohui, Deng Yaru, Ma Yuehong, Chen Weiqiang. Simulation of confirmed homestead consolidation using "potential constraint- probability choice"[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2022, 38(18): 264-273. DOI: 10.11975/j.issn.1002-6819.2022.18.029

    Simulation of confirmed homestead consolidation using "potential constraint- probability choice"

    • Abstract: A precise object is the premise to orderly implement the homestead remediation of the whole land. Taking the administrative village as the unit, this study aims to investigate the confirmed homestead consolidation using "potential constraint- probability choice. The coefficient correction and multi-factor comprehensive evaluation were adopted to obtain the potential scale of homestead right confirmation consolidation. The economic, social, transportation, and land factors were comprehensively evaluated at the village level using multi-source survey data, such as land, homestead right confirmation, as well as social and economic survey. Taking the plot-scale homestead land as the basic renovation unit, the systematic evaluation was combined with the upper guidance, status driven, and willingness obstruction. The priority of the renovation unit was then selected from the consolidation probability of each land parcel with the right confirmation. The results showed that: (1) the gross average correlation coefficient was 0.580 1 for the homestead-construction land in the Maogudui town. A total of 56.25% of the potential theory of regulation was realized in the 208.32 hm2 confirmed homestead with the potential reality regulation of 117.17 hm2. Correspondingly, there was the decrease in the 24.24% current area of confirmed homestead. The spatial distribution of real remediation potential was generally obtained under the influence of location advantage and future land demand. The larger the potential was, the farther it was from the market town. (2) The probability of housing land consolidation was the main judgment criterion for the priority. The total area of homestead was lower with the high consolidation probability, in terms of the confirmed homestead area corresponding to different probability intervals. However, the priority of renovation with the high and low probability was determined to preserve or renovate the homestead. An optimal selection was then made, according to the specific village conditions. (3) The iterative selection of consolidation units was carried out in the different villages using the potential constraints of various villages. A total of 4 512 consolidation units were selected with a consolidation area of 117.79 hm2. The consolidation probability was greater than 0.5 in the selected units. Among them, the remediation units greater than 0.65 were a total area of 85.13hm2, accounting for 72.27% of the target area. Therefore, the connectedness of spatial distribution in the regulated units, the priority of the hollowing and the non-central village area were beneficial to enhance the management efficiency and the cultivated land scale for the optimization of cultivated land resource. At the same time, the priority renovation of non-central villages was conducive to the planning objectives in the development of focused villages. In conclusion, the land-scale consolidation simulation can directly take the homestead land as the basic unit, corresponding to the owner of land tenure under the Spatial Planning of National Land. The finding can provide the specific and accurate decision-making reference to implement the comprehensive land consolidation in the planning period.
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