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[1]HAN Xiaojia,LIU Xiaopeng,WANG Yajuan,et al.Ecological Risk Assessment and Its Management of Oasis in Arid Area Based on Landscape Pattern—A Case Study in Qingtongxia[J].Research of Soil and Water Conservation,2017,24(05):285-290.

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Ecological Risk Assessment and Its Management of Oasis in Arid Area Based on Landscape Pattern—A Case Study in Qingtongxia

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 05 Page number: 285-290 Column: Public date: 2017-10-28

Title:: Ecological Risk Assessment and Its Management of Oasis in Arid Area Based on Landscape Pattern—A Case Study in Qingtongxia

Author(s):: HAN Xiaojia¹, LIU Xiaopeng^1,2, WANG Yajuan¹, WEN Shengqiang¹, YE Junyan¹; 1. School of Resources and Environment, Ningxia University, Yinchuan 750021, China;
2. Key Laboratory(China-Arab) of Resource Evaluation and Environmental Regulation of Arid Region in Ningxia, Yinchuan 750021, China

Keywords:: landscape pattern; ecological risk; arid area oasis; risk management; Qingtongxia City

CLC:: X171.1

DOI:: -

Abstract:: It is of great significance to carry out ecological risk assessment because of the weak anti-interference ability of oasis in arid area. Based on the theory of landscape ecology, we selected Qingtongxia City as the research sample, and used remote sensing data in three periods, and the landscape pattern index to assess the ecological risk, and achieved the spatialization of index, as well as made the spatial distribution maps of ecological risk in 2006, 2010 and 2016. On the basis above, the accumulation mode of ecological risk in the study area was analyzed by spatial statistics. The results showed that: (1) during the study period, the change of landscape pattern was obvious in Qingtongxia City; the fragmentation of cultivated land, water area and unused land increased, the fragmentation trend of large patches was obvious, and the landscape stability decreased; the spatial distribution of landscape pattern index show that the landscape fragmentation and the loss degree of the higher areas distributed in the oasis core area which was gathered by population and economic activity; (2) the spatial and temporal changes of ecological risk in the study area were different; among them, the reduction of high risk area was the most remarkable, and with the conversion of the risk grade, the medium risk area became the main risk type; ecological risk presented the mitigative trend; (3) there was prominent spatial positive correlation between the ecological risks in teh study area, the ‘low—low’ and ‘high—high’ accumulations were the main ecological risk accumulation mode, the spatial outliers that low values were surrounded by high values or high values were surrounded by low values were not significant, the serious differentiation between high and low risks is the urgent problem to be solved in the study area.

References:: [1] 彭建,党威雄,刘焱序,等.景观生态风险评价研究进展与展望[J].地理学报,2015,70(4):664-677.
[2] 邓飞,于云江,全占军.区域生态风险评价研究进展[J].环境科学与技术,2011,34(S1):141-147.
[3] 周平,蒙吉军.区域生态风险管理研究进展[J].生态学报,2009,29(4):2097-2106.
[4] Mohamed M, Mohamed S, Mehdi M, et al. Environmental and ecological risk assessment of heavy metals in sediments of Nador lagoon, Morocco[J]. Ecological Indicators, 2015,48(1):616-626.
[5] 许学工,颜磊,徐丽芬,等.中国自然灾害生态风险评价[J].北京大学学报:自然科学版,2011,47(5):901-908.
[6] 石朋浩,于开芹,冯永军.基于景观格局的城乡结合部生态风险分析:以泰安市岱岳区为例[J].应用生态学报,2013,24(3):705-712.
[7] 张思锋,刘晗梦.生态风险评价方法述评[J].生态学报,2010,30(10):2735-2744.
[8] 王亚娟,米文宝,李建华.宁夏中部干旱带农业景观格局变化研究[J].水土保持研究,2013,20(4):203-206.
[9] 康鹏,陈卫平,王美娥.基于生态系统服务的生态风险评价研究进展[J].生态学报,2016,36(5):1192-1203.
[10] Petra T B, Douglas P. An ecological risk management and capacity building model[J]. Human Ecology, 2014,42(4):591-603.
[11] 周婷,蒙吉军.区域生态风险评价方法研究进展[J].生态学杂志,2009,28(4):762-747.
[12] 王文杰,张永福,王慧杰.基于GIS干旱区绿洲县域土地利用变化生态风险分析:以新疆泽普县为例[J].水土保持研究,2016,23(6):216-220.
[13] 李博,石培基,金淑婷.石羊河流域植被生态系统生态风险评价研究[J].水土保持通报,2013,33(1):201-205.
[14] 王美娥,陈卫平,彭驰.城市生态风险评价研究进展[J].应用生态学报,2014,25(3):911-918.
[15] Echeverría C, Newton A, Nahuelhual L, et al. How landscapes change: Integration of spatial patterns and human processes in temperate landscapes of southern Chile[J]. Applied Geography, 2012,32(2):822-831.
[16] 赵文智,庄艳丽.中国干旱区绿洲稳定性研究[J].干旱区研究,2008,25(2):155-162.
[17] 王永兴,张小雷,阚耀平.绿洲地域系统及其演变规律的初步研究[J].干旱区地理,1999,22(1):62-68.
[18] 吴文婕,石培基,张学斌,等.干旱区内陆河流域绿洲水土资源生态风险动态研究[J].水土保持通报,2012,33(3):249-255.
[19] 宋冬梅,肖笃宁,张志城,等.甘肃民勤绿洲的景观格局变化及驱动力分析[J].应用生态学报,2003,14(4):535-539.
[20] 巩杰,赵彩霞,谢余初,等.基于景观格局的甘肃白龙江流域生态风险评价与管理[J].应用生态学报,2014,25(7):2041-2048.
[21] 谢花林.基于景观结构的土地利用生态风险空间特征分析:以江西兴国县为例[J].中国环境科学,2011,31(4):688-695.
[22] 李程程,南忠仁,王若凡,等.基于景观结构和3S技术的干旱区绿洲生态风险分析:以高台县为例[J].干旱区资源与环境,2012,26(11):31-35.
[23] 邬建国.景观生态学[M].北京:高等教育出版社,2012.
[24] 魏伟,石培基,雷莉,等.基于景观结构和空间统计方法的绿洲区生态风险分析[J].自然资源学报,2014,29(12):2023-2035.
[25] 谢花林.基于景观结构和空间统计学的区域生态风险分析[J].生态学报,2008,8(10):5020-5026.
[26] 巫丽芸.区域景观生态风险评价及生态风险管理研究[D].福州:福建师范大学，2004.

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