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Dynamic changes and transitions of agricultural landscape patterns in mountainous areas:A case study from the hinterland of the Three Gorges Reservoir Area

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Journal of Geographical Sciences 2022年第6期32卷 1039-1058页

作者： HUANG Mengqin LI Yangbing RAN Caihong LI Mingzhen School of Geography and Tourism Chongqing Normal UniversityChongqing 401331China Key Laboratory of Surface Process and Environment Remote Sensing in the Three Gorges Reservoir Area Chongqing 401331China

Analyzing the agricultural landscape patterns in mountainous areas is critical to clarify the dynamic changes and development direction of agricultural *** also plays a significant role in the rational planning and management of agricultural land.A theoretical framework for agricultural landscape pattern transitions in mountainous areas is proposed to fill the gap of current research with an empirical study in the Caotangxi Watershed,Three Gorges Reservoir Area(TGRA),*** transition characteristics of agricultural landscape patterns from 2000 to 2018 as represented by sloping farmland,abandoned land,and orchards are analyzed from a holistic-local *** results indicate that the orchards expanded along river valleys,and abandoned land expanded at high elevations,which led to reduced sloping *** phenomenon gives regional landscape differences at the holistic and local ***,it enhances the region’s holistic landscape diversity but causes fragmentation and aggregation of landscape patches in local *** agricultural landscape pattern transitions within the farming range in the study area are manifested primarily in four modes:sloping farmland-orchard conversion type(FOCT),comprehensive conversion type(CCT),partially abandoned type(PAT),and wholly abandoned type(WAT).Each transition mode reveals different development stages of the mountainous agricultural landscape *** general,the agricultural landscape pattern transition is driven by socioeconomic factors in mountainous areas of the TGRA and is *** attribute is expressed as the transition from the traditional grain-planting landscape with an even distribution to the eco-economic win-win orchard in valleys and transitions from sloping farmland to abandoned land in high-elevation ***,the results of this study reveal the uniqueness of agricultural landscape pattern evolutions in China’s mountainous areas in recent decades,which has enlighten

关键词： agricultural landscape pattern transition mountainous areas Three Gorges Reservoir Area

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