摘要
内陆岛屿型封闭生境的人-地关系紧张,是区域环境变化和人类活动的敏感指示器。基于Landsat MSS/TM/OLI数据(1982—2016年)、气象站点(1982—2012年)年均降水、气温数据和ASTER GDEM数据,对山东省徂徕山—莲花山地区的气候变化要素(年均降水和气温)、人类活动要素(耕地和建筑用地面积)以及遥感指数归一化植被指数(normalized difference vegetation index,NDVI)和归一化建筑指数(normalized difference building index,NDBI)进行时序分析和相关性分析。结果表明:近35 a间,林地和灌丛向草地和稀疏草地转变,草地和稀疏草地向裸地转变的趋势明显;形成了耕地、建筑用地包围林地,林地中有耕地和建筑用地的景观格局;核心区NDVI增速为0.0069/10 a,NDBI降速为-0.014/10 a;核心区周围NDVI降速为-0.018/10 a,NDBI增速为0.0035/10 a;耕地转出大,主要转化为建筑用地和林地;林地面积变化与耕地和建筑用地面积呈显著负相关。总体上,徂徕山—莲花山地区生态结构和景观格局均发生了不利变化。
The strained human-land relationshiPin habitats which are isolated like islands inland,is an indicator sensitive to regional environmental changes as well as human activities.Based on image data obtained from Landsat MSS/TM/OLI(1982—2016),average annual precipitation and temperature data derived from meteorological stations(1982—2012),and DEM acquired by ASTER,the authors carried out time series analysis and correlation analysis of climate change factors(annual precipitation and temperature),human activity factors(area of cultivated and construction land)and specific remote sensing indexes including NDVI(normalized difference vegetation index)and NDBI(normalized difference building index)in Culai-Lianhua area.Some conclusions have been reached:The trend of vegetation degradation has been obvious in the past 35 years.It is clear that woodland and shrub have been transformed into grassland and sparse grassland,whereas grassland and sparse grassland have been transformed into bare land.The landscape pattern has changed.Woodland is surrounded by cultivated land and construction land.The woodland has been mixed with cultivated and construction land as well.The construction of the core area has made positive effect.In the core area,the growth rate of NDVI is 0.0069/10 a and the NDBI has decreased at a rate of 0.014/10 a.On the contrary,around the core area,its NDVI has been speeding down at a rate of 0.018/10 a and the growth rate of NDBI is 0.0035/10 a.The cultivated land has been greatly reduced,and mostly has been transformed into construction land and woodland.There exists a significant negative correlation between the change of woodland area and the change of cultivated and construction land area.In general,both the ecological structure and the landscape pattern have undergone adverse changes in Culai-Lianhua area.
作者
马超
蔡盼丽
MA Chao;CAI Panli(College of Surveying&Land Information Engineering,Henan Polytechnic University,Jiaozuo 454000,China;Key Laboratory of State Bureau of Surveying and Mapping of Mine Spatial Information Technology,School of Surveying and Mapping Land Information Engineering,Henan Polytechnic University,Jiaozuo 454000,China;College of Resources and Environment,University of Chinese Academy of Science,Beijing 100190,China)
出处
《国土资源遥感》
CSCD
北大核心
2019年第4期199-208,共10页
Remote Sensing for Land & Resources
基金
国家自然科学基金委员会与神华集团有限责任公司联合资助重点项目“高强度开采地表生态环境演变机理与调控”(编号:U1261206)
培育项目“沉陷区高分辨率SAR散射特征变化规律研究”(编号:U1261106)
河南理工大学创新型科研团队项目“区域生态演变与调控”(编号:T2018-4)共同资助
