摘要
利用三期(2010年、2013年和2017年)遥感影像解译数据,选取景观指数指标,在修正单位面积生态系统服务价值当量表的基础上,探讨重庆武隆仙女山度假小镇景观格局与生态系统服务价值的时空演变,并进行相关性分析。结果表明:(1)2010—2017年仙女山度假小镇建设用地面积急剧增加的同时,林地和其他用地的面积呈缩减趋势。(2)建设用地景观集中化特征明显。受其直接影响,小镇景观格局整体的破碎化趋势凸显,景观异质性增强,景观优势度降低,表明人为因素尤其是建设需求是景观格局演变的核心驱动力。(3)度假小镇生态系统服务价值总量逐年递减,主要原因是生态系统服务价值最高的林地面积持续减少;价值量排序为调节服务>支持服务>供给服务>文化服务;在空间变化上,生态系统服务价值呈现出“西北高,东南低”的分布模式,低值区范围持续扩大。(4)景观格局指数与生态系统服务价值量存在较强相关性。生态系统服务价值与平均斑块面积、蔓延度和聚合度呈正相关,与香农多样性和香农均匀度呈负相关。
Based on the interpretation data of remote sensing images in three years(2010,2013 and 2017),the selected landscape index and the revised equivalent table of ecosystem service value,the temporal and spatial evolution of landscape pattern and ecosystem service value of Xiannvshan resort town in Wulong,Chongqing was examined.The correlation between landscape index and ecosystem service value was tested.The results are as follows.(1)Between 2010 and 2017,when the area of construction land increased sharply,the area of woodland and other land use decreased.(2)The concentration trend of construction land was observable.Affected by this,the fragmentation and heterogeneity of landscape pattern in the town as a whole enhanced and meanwhile landscape dominance reduced,indicating that human activities especially urban facilities construction were the major driving force of landscape pattern evolution.(3)During the study period,the total ecosystem service value of the town decreased significantly,mainly due to the continuous decrease of woodland area which loaded the highest ecosystem service value.The value decreased in the sequence:regulation service>support service>supply service>cultural service.The ecosystem service value showed a spatial distribution mode of"high in northwest and low in southeast",in the meantime the area of low value continued to expand.(4)There was a strong correlation between the landscape pattern index and ecosystem service value.The value of ecosystem service was positively correlated with the mean patch area(AREA_MN),contagion index(CONTAG)and aggregation index(AI),and negatively correlated with Shannon diversity index(SHDI)and Shannon evenness index(SHEI).
作者
秦普艳
胡志毅
管陈雷
张柳柳
QIN Puyan;HU Zhiyi;GUAN Chenlei;ZHANG Liuliu(School of Geography and Tourism,Chongqing Normal University,Chongqing 401331,China;College of Business Administration,Chongqing Three Gorges University,Chongqing 404100,China)
出处
《生态科学》
CSCD
2021年第4期121-129,共9页
Ecological Science
基金
国家社会科学基金项目(16XJY017)
重庆师范大学研究生科研创新项目(YKC19001)
重庆师范大学研究生科研创新项目(YKC19009)。
关键词
山地度假小镇
景观格局
生态系统服务价值
时空演变
相关性
mountainous resort town
landscape pattern
ecosystem service value
temporal and spatial evolution
relativity
