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Rural Land Use Change during 1986–2002 in Lijiang China Based on Remote Sensing and GIS Data

机译：基于遥感和GIS数据的丽江市1986-2002年农村土地利用变化

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As a local environmental issue with global importance, land use/land cover change (LUCC) has always been one of the key issues in geography and environmental studies with the expansion of regional case studies. While most of LUCC studies in China have focused on urban land use change, meanwhile, compared with the rapid change of urban land use in the coastal areas of eastern China, slow but distinct rural land use changes have also occurred in the mountainous areas of western China since the late 1980s. In this case through a study in Lijiang County of Yunnan Province, with the application of remote sensing data and geographic information system techniques, the process of rural land use change in mountain areas of western China was monitored through extensive statistical analysis of detailed regional data. The results showed significant increases in construction land, paddy field and dry land, and a decrease in dense forest land and waste grassland between 1986 and 2002. The conversions between dense forest land and sparse forest land, grassland, waste grassland and dry land were the primary processes of rural land use change. Sparse forest land had the highest rate of land use change, with glacier or snow-capped land the lowest; while human settlement and rural economic development were found to be the main driving forces of regional difference in the integrated land use change rate among the 24 towns of Lijiang County. Quantified through landscape metrics, spatial patterns of rural land use change were represented as an increase in landscape diversity and landscape fragmentation, and the regularization of patch shapes, suggesting the intensification of human disturbances and degradation of ecological quality in the rural landscape.
机译：作为具有全球重要性的局部环境问题，随着区域案例研究的扩展，土地利用/土地覆被变化（LUCC）一直是地理和环境研究中的关键问题之一。尽管中国的LUCC研究大多集中在城市土地利用变化上，但与东部沿海地区城市土地利用的快速变化相比，西部山区的农村土地利用变化也发生了缓慢但明显的变化。中国自1980年代后期以来。在这种情况下，通过在云南省丽江县进行的一项研究，结合遥感数据和地理信息系统技术，通过对详细区域数据进行广泛的统计分析，监测了中国西部山区农村土地利用的变化过程。结果表明，在1986年至2002年之间，建设用地，水田和旱地显着增加，而茂密的林地和荒地减少了。茂密的林地与稀疏林地，草地，荒地和旱地之间的转换是农村土地利用变化的主要过程。稀疏林地的土地利用变化率最高，而冰川或积雪覆盖的土地最低。丽江县24个乡镇中，人类住区和农村经济发展是土地综合利用变化率区域差异的主要驱动力。通过景观指标量化，农村土地利用变化的空间格局表示为景观多样性和景观破碎化以及斑块形状的规律化，表明人为干扰的加剧和乡村景观生态质量的下降。

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