首页关于本刊影响因子及获奖投稿须知订阅及广告专辑与专题学术会议绿色发表通道优秀论文 
说明:
此论文已被《生态学报》录用,现已优先出版,可查看文章PDF版本!
马依拉•热合曼,买买提•沙吾提,尼格拉•塔什甫拉提,依克丽曼•阿布都米提,马春玥,依尔夏提•阿不来提.基于遥感与GIS的渭库绿洲生态系统服务价值时空变化研究.生态学报,2018,(16).http://dx.doi.org/10.5846/stxb201708221512  
基于遥感与GIS的渭库绿洲生态系统服务价值时空变化研究
The ecosystem service value spatial -temporal changes in the Ugan-kuqa River Delta oasis based on RS and GIS
投稿时间:2017-08-22  修订日期:2018-03-31
DOI: 10.5846/stxb201708221512
关键词渭库绿洲  土地利用/土地覆被  时空变化  生态系统服务价值(ESV)  敏感系数  空间自相关
Key WordsUgan-kuqa River Delta Oasis  land use/land cover  Temporal and spatial change  ecosystem service value (ESV)  sensitive coefficient  spatial autocorrelation
基金项目国家自然科学基金(41361016,40901163,41761077)新疆大学博士启动基金(BS120116,No.XY110117)
作者单位E-mail
马依拉•热合曼 新疆大学资源与环境科学学院乌鲁木齐 830046
新疆大学绿洲生态教育部重点实验室乌鲁木齐 830046 
2958697732@qq.com 
买买提•沙吾提 新疆大学资源与环境科学学院乌鲁木齐 830046
新疆大学绿洲生态教育部重点实验室乌鲁木齐 830046
新疆大学资源与环境科学学院智慧城市与环境建模自治区普通高校重点实验室乌鲁木齐 830046 
korxat@xju.edu.cn 
尼格拉•塔什甫拉提 新疆大学资源与环境科学学院乌鲁木齐 830046
新疆大学绿洲生态教育部重点实验室乌鲁木齐 830046
新疆大学资源与环境科学学院智慧城市与环境建模自治区普通高校重点实验室乌鲁木齐 830046 
 
依克丽曼•阿布都米提 新疆大学资源与环境科学学院乌鲁木齐 830046
新疆大学绿洲生态教育部重点实验室乌鲁木齐 830046 
 
马春玥 新疆大学资源与环境科学学院乌鲁木齐 830046
新疆大学绿洲生态教育部重点实验室乌鲁木齐 830046 
 
依尔夏提•阿不来提 新疆大学资源与环境科学学院乌鲁木齐 830046
新疆大学绿洲生态教育部重点实验室乌鲁木齐 830046 
 
摘要点击次数 62
全文下载次数 22
摘要:
生态系统服务价值(ESV)研究是改善土地利用方式,对促进地区生态系统保护和修复具有重要指导意义。选择生态环境较为脆弱的渭库绿洲为研究区域,以1994和2016年遥感影像为基础数据进行生态服务价值评估,应用格网、敏感性分析、空间自相关等空间统计学方法来进一步揭示研究区域生态系统服务价值(ESV)动态变化特征。结果表明:(1)1994—2016年间渭库绿洲土地利用变化/土地覆被变化较为显著,耕地,建设用地面积呈增长趋势,水域、草地和未利用地面积呈递减趋势,耕地和草地面积变化最为剧烈 (2)1994—2016年,渭库绿洲的生态系统服务总价值呈减少趋势,由4895.67×106元减少到3864.78×106元,减少了1030.89×106元,年均减少0.96%;空间上表现为生态服务价值增值区及减值区呈包围态势,生态系统服务高值区域在不断缩小;同时生态系统单项服务价值呈现有增有减的趋势,废物处理、水源涵养、生物多样性保护、娱乐文化等四项单项服务价值呈现下降趋势,而食物生产、气候调节、气体调节和原材料、土壤形成与保护等其他五项单项服务价值出现上升趋势;(3)敏感性分析表明,所有土地利用类型生态系统服务价值系数的敏感性指数(CS)均小于1,说明生态价值系数(VC)对生态系统服务价值的变化影响较小,模型能够合理评估该区域生态服务价值波动。(4)研究区生态系统服务价值表现出明显的空间自相关与空间聚集现象,生态服务价值高值聚集区主要分布在渭干河上游“克孜尔水库”周围和塔里木河北岸,并呈减少趋势,注意保护高值区的空间稳定性;低值聚集区主要集中在绿洲南部靠近塔克拉玛干沙漠边缘和北部靠近天山中部的山区以及库车河下游荒漠区域,这类区域在空间范围上呈连片连绵趋势,空间分布格局上基本保持稳定。(5)受气候变化和人类活动的双重影响下,草地和水域面积的大幅度下降,耕地和建设用地面积的增加,导致生态服务价值系数较高的土地越来越少,使得研究区的生态服务价值趋于减弱。
Abstract:
Ecosystem services value (ESV) research is an important way to improve land use patterns and to promote the protection and restoration of regional ecosystems. This study choose the fragile ecological environment of the Ugan-Kuqa River delta oasis as a study area, using remote sensing images in 1994 and 2016 as the basic data to assess the value of ecosystem services. In order tTo fatherly further investigate dynamic change characteristics of regional ecosystem service values, the grid, sensitivity analysis, spatial autocorrelation, and spatial statistical methods were applied. The results revealed that: (1) 1994-–2016 Ugan-Kuqa River delta oasis land use changechanged, and land cover changed is was more significant. Cultivated land and construction land showed an increasing trend, whilewhereas, grassland and unused land showed a declining trend. Cultivated land and grassland changed most violentlyrapidly. (2) From 1994 to 2016, the total value of ecosystem services in the Ugan-Kuqa River delta oasis decreased from 4895.67 × 106 yuan to 3864.78 × 106 yuan, being reduced by 1030.89 × 106 yuan, an annual reduction of 0.96%; in spaces for where the ecological service value added zone area and in the impairment area were in a situation of encirclement. Areas of high ecosystem services value are were shrinking. At the same time, the value of ecosystem individual services presented an trend of increasinge and decreasinge trend. Four single service values, such as waste treatment, water conservation, biodiversity protection, and recreational culture, showed there was a downward trend. WhereasHowever, food production, climate regulation, gas regulation and Raw raw material, soil formation, and protection, and an additionalother five individual service values showed an upward trend. (3) The sensitivity analysis revealed that the sensitivity index of ecosystem service value coefficient (CS) of all land use types were less than 1, indicating that the ecological value coefficient (VC) has had little influence on the changes of ecosystem service values, the model can reasonably evaluate the fluctuation of regional ecosystem service values. (4) The ecosystem service value of the study area showed obvious spatial autocorrelation and spatial clustering, ecological service value high accumulation areas is were mainly distributed in the Ugan-Kuqa River upstream, in the "Kezier reservoir" around and north shore of the Tarim River and showed a decreasing trend. Protection of the spatial stability of the high value area is must be considered; the low accumulation area mainly concentrated in the southern part of the oasis where was is close to the edge of the Taklimakan Desert and the near the Tianshan Mountain central area and desert area of the lower reaches of the Kuqa River., The spatial distribution pattern of this kind of area is basically stable. (5) Affected by climate change and human activities, the grassland and water area is was greatly reduced and construction land and cultivated land was increased, resulting in the land with higher ecological service value coefficient is less andbeing continuously reduced less, which makes causes the ecological service value of the study area tend to weaken.
HTML 查看全文   查看/发表评论  下载PDF阅读器

您是本站第 70849873 位访问者

Copyright © 2005-2019   京ICP备06018880号
地址:北京海淀区双清路18号
  邮编:100085    电话:010-62941099
  E-mail : shengtaixuebao@rcees.ac.cn
本系统由北京勤云科技发展有限公司提供技术支持