摘要
为分析西南山区梯田撂荒地块质量特征及影响因素,厘清山区梯田撂荒与可持续利用机制,本文以贵州省剑河县白都村为例,综合运用农户调查数据与无人机高分辨率影像数据探讨梯田的撂荒规模、空间分布情况及地块质量特征;构建二元Logistic回归模型,对影响梯田撂荒的各地块质量因素作用大小进行定量分析。结果表明:①白都村样本农户的梯田面积为62.518 hm^(2),多集中分布于耕作高差、坡度和耕作距离较大区域,其撂荒面积为21.354 hm^(2),撂荒率为34.16%。②梯田的地块质量因素对其撂荒的贡献程度表现为:灌溉条件>动力使用状况>田埂坍塌状况>耕作面积>综合地形条件,其中灌溉条件、动力使用状况、耕作面积与梯田撂荒均呈负相关,田埂坍塌状况和综合地形条件与梯田撂荒呈正相关。研究结果对于推进西南山区梯田的可持续利用与管理具有重要的理论及实践意义。
This paper aims to examine the plot quality characteristics of abandoned terraces in the mountainous areas of Southwest China and explore the key influencing factors that trigger the abandonment of the terraces.To further clarify the driving mechanism of the abandonment of terraced fields in mountainous areas and find ways to sustainable use of terraced fields,this paper takes Baidu Village,Jianhe County,Guizhou Province as the research area.Based on the survey data of farmers and the high-resolution UAV image data,we have an in-depth exploration of the scale of abandonment of terraced fields in mountainous areas,the spatial distribution of abandoned terraces,and the quality characteristics of plots.Then,through the construction of a binary Logistic regression model,quantitative analysis is carried out on the effect of the quality factors of each area on the abandonment of terraces.The results show that:(1)The sample terraces of Baidu Village are mostly concentrated in areas with relatively large cultivated height differences,steep slopes,and relatively long tillage distances,and the area of terraces contracted by the sample farmers is 62.518 hm^(2).The abandoned terraces cover an area of 21.354 hm^(2),and the abandonment rate is 34.16%.(2)The dominant factor affecting the abandonment of terraces among the quality characteristics of terraces is the perfection of irrigation facilities;the second factor is the use of mechanical power;the third factor is the degree of ridge collapse;the fourth factor is the cultivated area;the fifth factor is the comprehensive topographical conditions.Among them,the perfection of irrigation facilities,the use of mechanical power,the size of farming area and the abandonment of terraced fields are all negatively correlated,and the degree of ridge collapse and comprehensive topographical conditions are positively correlated with the abandonment of terraced fields.The research results have important theoretical and practical significance for promoting the sustainable use and management of terraced fields in the mountainous areas of southwest China.
作者
牟艳
赵宇鸾
李秀彬
任红玉
刘艳
MOU Yan;ZHAO Yuluan;LI Xiubin;REN Hongyu;LIU Yan(College of Geography and Environmental Science,Guizhou Normal University,Guiyang 550001,China;The State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province,Guiyang 550001,China;Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China;Karst Mountain Ecology Environment Protection and Resource utilization Collaborative Innovation Center of Guizhou Province,Guiyang 550001,China)
出处
《地理研究》
CSSCI
CSCD
北大核心
2022年第3期903-916,共14页
Geographical Research
基金
国家自然科学基金重点项目(41930757)
国家自然科学基金项目(41771115)
贵州省科学技术基金资助项目(黔科合基础[2018]1116)。
关键词
地块质量特征
梯田撂荒
LOGISTIC回归分析
影响因素
贵州山区
plot quality characteristics
abandoned terraces
Logistic regression analysis
influencing factor
mountainous areas
Guizhou
