Spatial-temporal evolution, mechanism and vegetation restoration of abandoned farmland in the Maolan national nature reserve
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摘要: 本研究以高分辨率遥感影像和实地调查为基本数据源,运用Arcmap和Fragstats软件,研究了茂兰自然保护区弃耕撂荒地的空间分布与动态演变。结果表明:整个保护区的弃耕地主要集中在缓冲区和实验区;从2005年到2015年,弃耕地的空间分布范围明显减少,斑块面积逐渐增加;2005年和2010年,撂荒地数量与距聚落距离呈正相关,2015年,撂荒地主要分布在距聚落<200 m、600~800 m和>1 000 m的缓冲范围;弃耕地植被恢复型演替主要分布在核心区和缓冲区。研究结果为全面反映保护区的人地关系演变和生态恢复情况提供了参考。
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关键词:
- 茂兰喀斯特自然保护区 /
- 撂荒地 /
- 时空演变 /
- 植被恢复
Abstract: To elucidate the spatial-temporal change of abandoned land and its driving mechanism is one of the most important fields in recent research of land use/change. The Maolan karst natural reserve is well preserved as a typical karst forest ecosystem and world natural heritage. This paper aims to clarify the spatial-temporal evolution of abandoned land in this area based on the high-resolution remote sensing images and field investigations, using the Arcmap and Fragstats software. The results show that in the study area, the whole area of abandoned land mainly concentrates in the buffer zone and experimental area, namely Dongjia, Biba-lapa and Banlao-dongjiu in the northwest, south and northeast of the study area. From 2005 to 2015, the spatial distribution of the abandoned land area decreased significantly, while plaque area gradually increased. Between 2005 and 2010, the number of abandoned land and distance from settlements were positively correlated. In 2015, abandoned land was mainly distributed in settlement < 200 m, 600-800 m and > 1,000 m of the buffer area, respectively. The vegetation restoration of abandoned land was mainly distributed in the core and buffer area, but there was repeated cultivation after land abandonment in the experimental area with many rural settlements and artificial disturbs. The reason of farmland abandonment in the Maolan karst natural reserve was related firstly with the decrease of rural settlement and people. Secondly, it was related with the intensive use of cultivated land in the experimental area and buffer zone, and thirdly, with the farm household livelihood diversity and transition. These results could provide complete reference for understanding the human-natural relationship evolution and ecological restoration in the Maolan karst natural reserve area. -
[1] G. Ignacio Díaz, Laura Nahuelhual, Cristian Echeverría, et al. Drivers of land abandonment in Southern Chile and implications for landscape planning[J]. Landscape and Urban Planning, 2011,99: 207-217. [2] 谭术魁.耕地撂荒程度描述、可持续性评判指标体系及其模式[J].中国土地科学,2003,6:3-8. [3] 史铁丑,李秀彬.欧洲耕地撂荒研究及对我国的启示[J].地理与地理信息科学, 2013,29(3):101-103. [4] 谢丽.民国时期和田河流域洛浦垦区垦荒、撂荒地的空间分布格局:基于历史资料的信息可视化重建[J].地理学报,2013,68(2):232-244. [5] 李升发,李秀彬.耕地撂荒研究进展与展望[J]. 地理学报,2016,71(3):370-389. [6] 田玉军,李秀彬,马国霞,等.劳动力析出对生态脆弱区耕地撂荒的影响[J].中国土地科学,2010,24(7):4-9. [7] 郑财贵,邱道持,叶公强,等. 基于GIS空间分析的撂荒地空间分布特征研究:以重庆市璧山县大路镇为例[J]. 农机化研究,2010,32(3):31-36. [8] 陈寅,李阳兵,谭秋.茂兰自然保护区景观格局空间变化研究[J]. 地球与环境,2014,42(2):179-186. [9] 王军,李正,白中科,等. 喀斯特地区土地整理景观生态规划与设计:以贵州荔波土地整理项目为例[J]. 地理科学进展,2011,30(7):906-911. [10] 谢苗苗,李超,刘喜韬,等. 喀斯特地区土地整理中的生物多样性保护[J]. 农业工程学报,2011,27(5):313-319. [11] 谭成江,冉景丞,莫家伟,等. 茂兰保护区石漠化现状、成因及治理对策[J]. 山地农业生物学报,2011,30(5):440-442. [12] 熊康宁. 茂兰自然保护区耕地人口承载力研究[J]. 贵州师范大学学报(自然科学版),1997,15(4):10-17. [13] S. Bajocco, T. Ceccarelli, D. Smiraglia, et al. Modeling the ecological niche of long-term land use changes: The role of biophysical factors[J]. Ecological Indicators, 2016,60: 231-236. [14] Juraj Lieskovsky, Peter Bezák , Jana Spulerová, et al. The abandonment of traditional agricultural landscape in Slovakia-Analysis of extent and driving forces[J]. Journal of Rural Studies, 2015, 37: 75-84. [15] 胡敏,王成超. 劳动力非农转移对农户耕地撂荒的影响[J].亚热带资源与环境学报,2013,8(2):56-63.
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