Evaluation on Ecological Security and Analysis of Influence Factors of Oasis in Northwest Arid Region

Expand
  • (1.College of Resources and Environment Science, Xinjiang University, Urumqi 830046,Xinjiang,China;2. Key Laboratory of Oasis Ecology, Ministry of Education, Urumqi 830046, Xinjiang,China;3.College of Water Sciences,Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities,Beijing Normal University, Beijing 100875, China)

Received date: 2017-10-16

  Revised date: 2017-12-18

  Online published: 2018-07-19

Abstract

It is an important precondition for the sustainable development of the region to maintain the ecological security of oasis. This paper taked Ugan-Kuqa river oasis as the research site, and constructed the evaluation index system from the structure, function and benefit of oasis ecosystem. The ecological security status and trend of the oasis in 2005-2014 were calculated and analyzed with the triangle model, and the affecting factors were analyzed by grey correlation analysis. The results showed that: (1) The non-structural index (NSI) of the ecosystem was decreasing year by year, it is indicated that the components of the ecosystem structure system became more and more reasonable in the decade from 2005 to 2014;The non-functional index (NFI) of the ecosystem was in a fluctuating trend, this was mainly because the natural population growth rate of the vigor index and the per capita water resources ,the soil-water coordination in stability index had great change; The ecosystem beneficial index (BI) has generally continued to rise from 0.08 in 2005 to 0.69 in 2014,it indicated that the economic benefits, social benefits and ecological benefits of the oasis ecosystem continue to improve in the 10a area, and were developing towards a healthy and harmonious direction. (2) From 2005 to 2014, the ecological security of the Ugan-Kuqa river oasis experienced two states: insecure and weak security;Ugan-Kuqa river oasis ecological system is not safe in 2005-2010 years, non-functional index (NFI) has been in the high range, non-structural index (NSI) has been in the medium range, beneficial index (BI) has been in the low range, the index value reflects Ugan-Kuqa river oasis ecological system presents poor structural characteristics, weak function and low benefits at this stage; In the 2011-2014 years, Ugan-Kuqa river oasis ecosystem was in a state of weak security. The non- structural index (NSI) of oasis ecosystem was in a relatively low range, showed a decreasing trend year by year. The non-functional index (NFI) was in a relatively high interval, showed an upward trend, and the beneficial index (BI)was in a low range, rising gradually. Based on the analysis of the change of ecological security status in the 2005-2014 years, we can see that the oasis ecosystem's safety level was changing from unsafe to weak safety state and toward a stable weak security trend. (3) Two factors that affect the ecological security of ecological Ugan-Kuqa river oasis in 2005-2014 were soil-water coordination and afforestation area, their correlation degree and weight were relatively large, and indicated that these two factors were the main factors that affect the ecological security of the oasis, and also the important content of the early warning of the oasis ecological security.Therefore, in order to realize the oasis stability and the sustainable development of oasis society and economy, it is necessary to settle the land with water and return farmland to forest and grass according to local conditions. The results will provide scientific basis for maintaining and further improving the ecological environment of the oasis.

Cite this article

He Zhen-zhen,Wang Hong-wei,YANG Sheng-tian,Liu Xiang-yun,Wang Pan,Wang Hui . Evaluation on Ecological Security and Analysis of Influence Factors of Oasis in Northwest Arid Region[J]. Arid Zone Research, 2018 , 35(4) : 963 -970 . DOI: 10.13866/j.azr.2018.04.26

References

[1]喻锋,李晓兵, 王宏,等.皇甫川流域土地利用变化与生态安全评价[J].地理学报,2006,61(6):654-653.[Yu Feng,Li Xiaobing,Wang Hong,et al.Land use change and eco-security assessment of Huangfuchuan watershed[J].Acta Geographica Sinica,2006,61(6):654-653.]
[2]张军民.干旱区生态安全问题及其评价原理—以新疆为例[J].生态环境,2007,16(4):1328-1332.[Zhang Junming.The ecological safety and its assessment principle in arid:A case of Xinjiang[J].Ecology and Environment,2007,16(4):1328-1332.]
[3] 迟妍妍,许开鹏,张惠远.浑善达克沙漠化防治区生态安全评价与对策[J].干旱区研究,2015,32(5):1024-1031.[Chi Yanyan,Xu Kaipeng,Zhang Huiyuang.Ecological security assessment and countermeasures of Hunshandake desertification control regions[J]. Arid Zone Research,2015,32(5):1024-1031.]
[4]张小虎,牛海鹏,郭增长.基于三角模型的城市土地生态安全区域差异分析—以河南省为例[J].自然灾害学报,2014,23(2):21-30.[Zhang Xiaohu,Niu Haipeng,Guo Zhengzhang.Regional difference analysis of urban land eco-security based on triangle model: A case study of Henan Province[J].Journal of Natural Disasters,2014,23(2):21-30.]
[5] Faber J H, Van Wensem J. Elaborations on the use of the ecosystem services concept for application in ecological risk assessment for soils[J]. Science of the Total Environment, 2012, 415: 3-8.
[6]肖笃宁,陈文波.论生态安全的基本概念和研究内容[J]应用生态学报,2002,13(3):354 -358.[Xiao Duning,Chen Wenbo.On the basic concepts and contents of ecological security[J].
Chinese Journal of Applied Ecology,2002,13(3):354-358.]
[7] 张浩,马蔚纯,HO Hon Hing.基于LUCC的城市生态安全研究进展[J].生态学报,2007,27(5):2109-2117.[Zhang Hao,Ma Weichun,HO Hon Hing.Recent advances in research on LUCC:Based urban ecological security[J].Acta Ecological Sinica,2007,27(5):2109-2117.]
[8]谢花林.土地利用生态安全格局研究进展[J].生态学报,2008,28(12):6305-6311.[Xie Hualin.Review and the outlook of land use ecological security pattern[J].Acta Ecological Sinica,2008,28(12):6305-6311.]
[9] 杨海镇,李惠梅,张安录.牧户对三江源草地生态退化的感知[J].干旱区研究,2016,33(4):822-829.[ Yang Haizhen,Li Huimei,Zhang Anlu,et al.Herdsmen's perception about ecological degeneration of grasslands in the Three-river Source Region,China[J]. Arid Zone Research,2016,33(4):822-829.]
[10] Han B, Liu H, Wang R. Urban ecological security assessment for cities in the Beijing–Tianjin–Hebei metropolitan region based on fuzzy and entropy methods[J]. Ecological modelling, 2015, 318: 217-225.
[11] Gardi C, Tomaselli M, Parisi V, et al. Soil quality indicators and biodiversity in northern Italian permanent grasslands[J]. European Journal of Soil Biology, 2002, 38(1): 103-110.
[12] 杨人豪,杨庆媛,曾黎,等.基于BP-ANN模型的农村土地生态安全评价及影响因素分析—以重庆市丰都县为例[J].水土保持研究,2017,24(3):206-213.[Yang Renhao,Yang Qingyuan,Zeng Li.Evaluation on ecological security and analysis of influence factors of rural land based on BP-ANN model-A case study of Fengdu County in Chongqing[J].Research of Soil and Water Conservation, 2017,24(3):206-213.]
[13]陈星.区域生态安全空间格局评价模型的研究[J].北京林业大学学报,2008,30(1):21-28.[ChenXing.Spatial pattern modelling of ecological security assessment in a region[J].Journal of
Beijing Forestry University, 2008,30(1):21-28.] 
[14]庞雅颂,王琳.区域生态安全评价方法综述[J].中国人口.资源与环境,2014,24(1):340-344.
[Pang Yasong,Wang Lin.A Review of regional ecological security evaluation[J]. China Population,Resources and Environment,2014,24(1):340-344.]
[15]满苏尔·沙比提,努尔卡木里·玉素甫等.新疆渭干河—库车河三角洲绿洲水资源供需分析[J].干旱区资源与环境,2010,24(12):145-149.[Mansur·Sabit,Nurkamil·Yusuf, NasimanNasierding.Supply and demandanalysis on water resources in Weigan river-Kuqa river delta oasis Xinjiang[J].Journal of Arid Land Resources and Environment,2010,24(12):145-149.]
[16] Kellogg C E. Soil survey manual[M]. Washington :US Department of Agriculture, 1951:1937.
[17] 孟优,周益民,侯秀玲等.干旱区绿洲生态安全评价研究—以新疆生产建设兵团为例[J].干旱区地理,2014,37(1):163-169.[Meng You,Zhou Yimin,Hou Xiuling et al.Assessment of the eco-security in arid areas oasis:A case of Xinjiang Production and Construction Corps[J].Arid Land Geography,2014,37(1):163-169.]
[18] 李帅,魏虹,倪细炉,等.基于层次分析法和熵权法的宁夏城市人居环境质量评价[J].应用生态学报,2014,25(9):2700-2708.[Li Shuai,Wei Hong,Ni Xilu,et al.Evaluation of urban human settlement quality in Ningxia based on AHP and the entropymethod[J].Chinese Journal of Applied Ecology,2014,25(9):2700-2708.]
[19]和文超,师学义, 邓青云,等.土地利用规划修编中粮食产量预测方法比较[J].农业工程学报,2011,27(12):348-352.[He Wenchao,Shi Xueyi,Deng Qingyun,et al.Comparison of grain yield prediction methods inland use planning[J]. Transactions of the Chinese Society of Agricultural Engineering,2011,27(12):348-352.]
[20]陈亚宁,陈忠升.干旱区绿洲演变与适宜发展规模研究—以塔里木河流域为例[J].中国生态农业学报,2013,21(1):134-140.[Chen Yaning,Chen Zhongsheng. Analysis of oasis evolution and suitable development scale for arid regions:A case study of the Tarim River Basin[J].Chinese Journal of Eco-Agriculture, 2013,21(1):134-140.]

Outlines

/