Zhang Hui,Luan Siyu,Cong Rong.Spatial Response of Cultivated Land Quality to Paddy Farming in Typical Counties of Northeast Black Soil Region[J].Research of Soil and Water Conservation,2024,31(01):327-334.[doi:10.13869/j.cnki.rswc.2024.01.038]
东北黑土区典型县域耕地质量对耕地水田化的空间响应
- Title:
- Spatial Response of Cultivated Land Quality to Paddy Farming in Typical Counties of Northeast Black Soil Region
- 文章编号:
- 1005-3409(2024)01-0327-08
- Keywords:
- cultivated land quality; paddy farmland; CRITIC model; bivariate local spatial autocorrelation; black soil area; Fujin City
- 分类号:
- F301.2
- 文献标志码:
- A
- 摘要:
- [目的]耕地水田化过程对耕地质量具有至关重要的影响,明确东北黑土区耕地质量对耕地水田化的空间响应,是提升黑土耕地质量实现耕地可持续利用的重要前提。[方法]构建LESA耕地质量评价体系,采用CRITIC模型、双变量局部空间自相关模型,揭示耕地质量和耕地利用变化之间的空间响应关系。[结果](1)研究区耕地水田化现象剧烈,呈现出东部最强、西部次之、中部最弱的时空分异格局;(2)研究区耕地质量变化显著,耕地质量下降比例低于质量提升比例,表现出中部下降最高、西部下降次高、东部下降最低的时空格局;(3)研究区耕地质量对水田化的响应具有双重效应,负向响应更为敏感,整体呈现出东部耕地质量响应程度高于其他区域的空间格局。[结论]研究区耕地水田化对耕地质量具有正、负两种效应,依据效应方向进行耕地利用结构调整,是保护黑土耕地的重要途径。对于具有正向效应的区域应适度推进旱改水项目,而针对具有负向效应的区域应停止旱改水工程,积极进行水田休耕,并可适当地将其恢复为旱地。
- Abstract:
- [Objective] The process of paddy field of cultivated land has a crucial impact on the quality of cultivated land. To clarify the spatial response of cultivated land quality to paddy field of cultivated land in northeast black soil area is an important prerequisite for improving the quality of black soil cultivated land and realizing the sustainable use of cultivated land. [Methods] LESA cultivated land quality evaluation system, CRITIC model and bivariate local spatial autocorrelation model were used. [Results](1)The phenomenon of paddy field of cultivated land in the study area was intense, showing the strongest spatial and temporal pattern in the east, followed by the west, and the weakest in the middle.(2)The quality of cultivated land in the study area had changed significantly, and the proportion of decline in cultivated land quality was lower than the proportion of quality improvement, showing a spatiotemporal pattern of the highest decline in the middle, the second highest decline in the west, and the lowest decline in the east.(3)The response of cultivated land quality to paddy field transformation in the study area had a dual effect, and the negative response was more sensitive. The overall response of cultivated land quality in the east was higher than that in other regions. [Conclusion] Paddy farmland in the study area has positive and negative effects on the quality of cultivated land. Adjusting the structure of cultivated land use according to the effect direction is an important way to protect black soil cultivated land. For areas with positive effects, the drought to water project should be moderately promoted, while for areas with negative effects, the drought to water project should be stopped, paddy field fallow should be actively carried out, and it can be properly restored to dry land.
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备注/Memo
收稿日期:2022-10-14 修回日期:2022-11-16
资助项目:黑龙江省博士后资助项目“黑龙江省松嫩平原土壤砷空间分异特征及驱动力分析”(LBH—Z12032)
第一作者:张慧(1976—),女,山东金乡人,副教授,博士,主要从事土地利用与规划研究。E-mail:2003zhanghui@163.com