山地城市园地时空变化及对生态服务价值的影响

发布时间：2018-01-04 03:08

本文关键词：山地城市园地时空变化及对生态服务价值的影响　出处：《南京林业大学学报(自然科学版)》2017年01期 　论文类型：期刊论文

【摘要】：【目的】厘清山区城市园地时空变化特点及对生态环境的影响,可指导山区园地管理与城市用地的科学规划。【方法】利用ArcGIS软件和生态服务价值系数法,以山地城市贵阳为例,分析了2000—2010年其园地时空变化特征及其对生态服务价值(ecosystem service value,ESV)的影响。【结果】研究期间,园地面积由2000年的14 088.78 hm2增加到2010年的15 255.72 hm2,增加区域多分布于西部和北部。10 a间,耕地转为园地是园地与其他地类之间转化的主要类型。园地面积在坡度、高程、城乡和公路各梯度带均呈增加趋势。各梯度带园地增加速度有所不同。园地ESV由2000年的26 786.15万元增加到2010年的29 004.79万元,增加区域多分布于研究区中北部。耕地和草地转为园地以及园地转为林地使ESV分别增加1 164.88万元、0.09万元和1.12万元,而林地转为园地以及园地转为草地使ESV分别下降0.86万元和0.09万元。【结论】地形、交通和城市区位是影响山区城市园地空间格局的重要因素。在经济快速发展、退耕还林政策影响下大量耕地转为园地是园地面积及其ESV增加的主要原因。
[Abstract]:[Objective] to clarify the mountainous city garden of temporal and spatial variation characteristics and its influence on ecological environment, can the scientific planning guidance for Mountainous Orchard Management and city. [method] the use of ArcGIS software and the ecosystem service value coefficient method, the mountain city of Guiyang as an example, analyzed from 2000 to 2010, the spatial and temporal variation characteristics of garden ecosystem services value (ecosystem service value, ESV). The influence of [results] during the study period, the garden area increased from 14088.78 in 2000 to 15255.72 in 2010, hm2 Hm2, increase regional distribution in the north and west of.10 a, the cultivated land changed into garden is a main type of transformation between the garden and other types of garden area in the slope. The urban and rural areas and the road, elevation, gradient zone increased. The gradient zone of orchard increased rate is different. The garden ESV increased from 267 million 861 thousand and 500 yuan in 2000 to 290 million 47 thousand and 900 yuan in 2010, Located in the north central region increased in study area. Cultivated land and grassland to woodland and garden garden to make ESV increased 11 million 648 thousand and 800 yuan, 900 yuan and 11 thousand and 200 yuan, while the land into gardens and garden to make ESV grassland decreased by 8 thousand and 600 yuan and 900 yuan. [conclusion] the terrain, traffic and city location is the important factors influencing the spatial pattern of mountain garden city. In the rapid development of economy and the impact of the policy of returning farmland to forest under a large number of cultivated land is the main reason for the garden garden area and ESV increase.

【作者单位】：贵州理工学院建筑与城市规划学院;贵州师范大学地理与环境科学学院;
【基金】：国家自然科学基金项目(41563007) 贵州省环境科学教学团队(黔教高[2012]426号)
【分类号】：F323.21
【正文快照】： 土地利用/覆被变化受自然、社会、经济等多种因素影响,反映了人类活动与自然环境的相互关系[1]。随着人口、资源与环境问题不断凸显,土地利用/覆被变化研究已成为国际全球变化研究热点。园地是山区农用地的重要组成部分,是种植以采集果、叶为主的集约经营的多年生木本和草本植

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