不同类型区农用地整治对农田生产能力的影响

以产能提高为核心的农用地整治已上升为国家层面的重要战略之一。通过建立农用地整治影响下的农田生产能力估算模型,定量评价湖北省内平原、丘陵及山地3种不同类型区农用地整治对农田生产能力的影响,结果表明:①农用地整治后,山地型整治区农田生产能力提高168.91%,丘陵型整治区提高57.78%,平原型整治区提高38.32%;②平原型整治区基础设施要素提高最大,为78.62%;丘陵型整治区水资源要素提高最大,为75%;山地型整治区基础设施要素提高最大,为199.12%;③总体上,基础设施要素对农田生产能力的贡献率都最大。建议国家农用地整治在政策上适当增加对山地型和丘陵型整治区的重视,项目区应合理配套农村居民点整治工程,并尽量避免生态损失。

Evaluation for the Production Ability of Agricultural Land in Different Types of Agricultural Land Consolidation Area

Increasing production capacity, the core of the agricultural land consolidation, has risen to one of the most important strategies at the national level. Agricultural land consolidation is a comprehensive engineering including the land plots merging, reconstruction of farmland irrigation and drainage facilities as well as road system to improve the engineering and ecological shelterbelt. Agricultural land consolidation project implementation measures would inevitably lead to changes in land use characteristics of the project area, which directly led to changes in cropland production capacity.Hubei Province as the study area can be roughly divided into three different agricultural land consolidation regions, such as plain, hill and mountain, and the different types of land regions have different production abilities of agricultural land. Through the establishment of agricultural land consolidation affected production ability of agricultural land estimation model, the effect of the different types of plain, hill and mountain land consolidation on the production ability of agricultural land in Hubei Province was quantitatively evaluated, the results indicate that: 1) Different types of agricultural land have a positive impact on the production ability of agricultural land, mountains remediation of the production ability of agricultural land increased by 168.91%, hill increased by 57.78% and plain increased by 38.32%. 2) Agricultural land consolidation infrastructure elements of different types of land affected the production ability of agricultural land differently, plain remediation district infrastructure elements increased the maximum, being 78.62%; hill remediation of water resources elements increased the maximum, being 75.00%; mountain remediation infrastructure elements increased the maximum, being 199.12%. 3) In different agricultural land consolidation regions, the contribution rate of infrastructure elements in the production ability of agricultural land is the largest, and that of plots merge is the smallest. It is suggested that funding delivery of the national land consolidation and delineation of the key areas should be appropriate to increase the importance of the mountains and hill remediation, the project area should reasonably support the scattered village renovation projects, and try to avoid the ecological loss.