地球科学进展 ›› 2020, Vol. 35 ›› Issue (2): 180 -188. doi: 10.11867/j.issn.1001-8166.2020.011

研究论文 上一篇    下一篇

山区耕地细碎化对不同利用方式农地集约度的影响
葛玉娟( ),赵宇鸾( ),任红玉   
  1. 贵州师范大学地理与环境科学学院,贵州 贵阳 550001
  • 收稿日期:2019-12-04 修回日期:2020-02-02 出版日期:2020-02-10
  • 通讯作者: 赵宇鸾 E-mail:986956266@qq.com;zhaoyl.09b@igsnrr.ac.cn
  • 基金资助:
    国家自然科学基金项目“岩溶区山—坝系统土地利用耦合演化机理研究:贵州省案例”(41771115);贵州省科技计划项目(编号:黔科合LH字[2016]7202)资助

The Effect of Farmland Fragmentation on the Intensity of Farmland in Different Utilization Ways

Yujuan Ge( ),Yuluan Zhao( ),Hongyu Ren   

  1. School of Geography and Environmental Science, Guizhou Normal University, Guiyang 550001,China
  • Received:2019-12-04 Revised:2020-02-02 Online:2020-02-10 Published:2020-03-24
  • Contact: Yuluan Zhao E-mail:986956266@qq.com;zhaoyl.09b@igsnrr.ac.cn
  • About author:Ge Yujuan (1994-), female, Chifeng City, Inner Mongolia Autonomous Region, Master student. Research areas include land resource utilization and management. E-mail: 986956266@qq.com
  • Supported by:
    the National Natural Science Foundation of China "Coupling evolution mechanism of land use of mountain-basin system in karst areas: Case of Guizhou Province"(41771115);The Science and Technology Project of Guizhou Province (No.[2016]7202)

我国山区农业发展正经历着从单一、低效的粮食生产为主的传统农地利用方式向高产、高效的园艺作物等新型农地利用方式转型,研究耕地细碎化对农地集约度的影响是山区农业现代化和开展土地整治的基础。基于贵州省2个典型村的无人机高分辨率遥感影像和农户调查数据,采用农户地块道路通达性指数、地块面积指数和地块形状指数3个指标测度耕地细碎化程度,并分析耕地细碎化对传统和新型两类农地利用集约度的影响。研究表明:耕地细碎化对农地集约度产生了显著负面影响,但对不同利用方式农地集约度影响程度存在差异;随着耕地细碎化程度的加剧,其对园艺作物等新型农地利用方式的投入、产出的影响均小于粮食作物等传统农地利用方式。大力调整农业结构和农地利用转型可缓解山区耕地细碎化对农地集约度的负面影响。

The agricultural development of mountainous areas in China is undergoing the transformation from the traditional agricultural land use mode dominated by single and inefficient grain production to the new agricultural land use mode such as high-yield and efficient horticultural crops. The research on the impact of farmland fragmentation on the agricultural land intensity degree is the basis of agricultural modernization and land remediation in mountainous areas. Based on the UAV high-resolution remote sensing image data of two typical villages in Guizhou Province and the questionnaire survey data of farmers, using the road accessibility index of farmers' plot, the area index and the shape index to measure the degree of farmland fragmentation, we analyzed the impact of different degrees of farmland fragmentation on the traditional and new types of farmland use intensification. The research showed that the farmland fragmentation had a significant negative impact on the intensive degree of agricultural land, but the impact on the intensive degree of agricultural land in different ways of use was different. With the intensification of the degree of farmland fragmentation, the impact on the input and output of horticultural crops and other new-type agricultural land utilization was less than that of grain crops and other traditional agricultural land utilization. Adjusting agricultural structure and transformation of farmland utilization greatly alleviated the negative impact of farmland fragmentation on farmland intensity in mountainous areas.

中图分类号: 

图1 研究区概况
Fig.1 The study area
表1 典型村样本农户耕作地块特征描述性统计结果
Table 1 Descriptive statistical result of farmland parcel characteristics in sample households
图2 农户耕地细碎化程度分布情况
Fig.2 Distribution of farmland fragmentation degrees of farming households
表2 样本农户耕地利用情况
Table 2 Land intensive use pattern of the sample households
表3 典型村不同农户耕地细碎化水平下耕地利用情况
Table 3 Utilization of arable land under different levels of farming households arable farmland fragmentation in typical village
图3 耕地细碎化与粮食、园艺作物劳动力投入之间的关系
Fig.3 The relationship between farmland fragmentation index and grain and horticultural crops labor input
图4 耕地细碎化与粮食、园艺作物资本投入之间的关系
Fig.4 The relationship between farmland fragmentation index and grain and horticultural crops capital input
图5 耕地细碎化与粮食、园艺作物增产性和省工性投入之间的关系
Fig.5 The impact of farmland fragmentation on grain and horticultural crops yield-increasing input and labor-saving input
图6 耕地细碎化与粮食、园艺作物产出之间的关系
Fig.6 The relationship between farmland fragmentation index and the output of grain and horticultural crops
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