Atmospheric insight to climatic signals of δ~(18)O in a Laohugou ice core in the northeastern Tibetan Plateau during 1960–2006     

WenTao Du  ShiChang Kang  Xiang Qin  XiaoQing Cui  WeiJun Sun 《寒旱区科学》2016,8(5):367-377

δ~(18)O variations;;ice core;;outgoing longwave radiation;;meridional wind;;northeastern Tibetan Plateau  相似文献   

Livelihood changes and evolution of upland ethnic communities driven by tourism: a case study in Guizhou Province,southwest China     

Ya-juan Li  Hu Yu  Tian Chen  Jing Hu  Hai-yang Cui 《山地科学学报》2016,13(7):1313-1332

As an effective livelihood approach to alleviate poverty without rural population migration, ethnic tourism has become the primary choice of economic development in ethnic areas worldwide in addition to traditional livelihood approaches. This article applies the theories of livelihood to study the community evolution driven by tourism livelihood and examine three mountainous tourism communities in different stages of tourist area life cycle. Drawing on the methods of GIS spatial analysis, semi-structured interviews and questionnaires, this article proposes a sustainable livelihood framework for ethnic tourism to explore the evolution of ethnic tourism communities by identifying changes in livelihood assets (natural, financial, social, cultural and human capitals) in the process of tourism development. The results show that the development of ethnic tourism has led to changes in the increase of building land, and the diversification of land use functions with a trend of shifting from meeting local villagers' living needs to satisfying tourists, income composition and uneven distribution of tourism income spatially. Ethnic tourism also led to the deterioration of traditional social management structure, collapse of neighboring relationship, the over- commercialization and staged authenticity of ethnic culture, as well as the gradual vanish of agricultural knowledge with a trend of increasing modern business knowledge and higher education. In addition, these changes, involving livelihood assets from natural, economic, human, social and cultural aspects are interrelated and interactive, which form new evolution characters of ethnic community. This study reveals the conflicts over livelihood approaches which have formed new vulnerabilities to impact on sustainable evolution of ethnic communities. This research provides implications for achieving the sustainable development of ethnic communities with the driving force of tourism livelihood.  相似文献   

Impacts of land management on ecosystem service delivery in the Baiyangdian river basin   总被引：1，自引：0，他引：1  

Yang Bai  Bo Jiang  Juha M. Alatalo  Changwei Zhuang  Xiaoyuan Wang  Lijuan Cui  Weihua Xu 《Environmental Earth Sciences》2016,75(3):258

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GIS-based nitrogen removal model for assessing Florida’s surficial aquifer vulnerability     

Celena Cui  Wendy Zhou  Mengistu Geza 《Environmental Earth Sciences》2016,75(6):526

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Protection of neighbour buildings due to construction of shield tunnel in mixed ground with sand over weathered granite     

Qing-Long Cui  Huai-Na Wu  Shui-Long Shen  Zhen-Yu Yin  Suksun Horpibulsuk 《Environmental Earth Sciences》2016,75(6):458

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Pattern analysis of simple transverse dunes in China’s Qaidam Basin,north of the Kunlun Mountains   总被引：2，自引：0，他引：2  

Chao Li  Zhibao Dong  Xujia Cui  Feng Bao 《Environmental Earth Sciences》2016,75(9):729

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Rock fall hazard and risk assessment along Araniko Highway,Central Nepal Himalaya     

Amar Deep Regmi  Peng Cui  Megh Raj Dhital  Qiang Zou 《Environmental Earth Sciences》2016,75(14):1112

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Microbial community structure in hypolentic zones of a brine lake in a desert plateau,China     

Wenzhen Yuan  Xiaosi Su  Geng Cui  Huang Wang 《Environmental Earth Sciences》2016,75(15):1132

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Wetland economic valuation approaches and prospects in China   总被引：1，自引：0，他引：1  

Bo Jiang  Christina P. Wong  Lijuan Cui  Zhiyun Ouyang 《中国地理科学(英文版)》2016,26(2):143-154

Ecosystem services valuation seeks to increase the social relevance of ecosystem characteristics, the underlying biological mechanisms that support services, by making the contribution of ecosystems to human well-being explicit. Economic valuation can help management by clarifying the full range of benefits and costs of proposed management actions. In the past two decades, economic valuation of wetland ecosystem services has become one of the most significant scientific priorities for wetland protection. In this paper, we provide an overview of ecosystem services, and summarize the main interdisciplinary approaches to measure and value wetland ecosystem services. We identified four main methodological gaps preventing progress on wetland valuation of ecosystem services in China, which are: 1) confusion on terminology like intermediate and final ecosystem services, 2) lack of ecological production functions to link ecosystem characteristics to final ecosystem services, 3) static valuation making it difficult to evaluate the trade-offs and synergies among ecosystem services, and 4) lack of clear guidance on relating ecological compensation programs to conservation targets. Overcoming these gaps is important to inform wetland compensation mechanisms and conservation policies. We propose future research on wetland ecosystem services in China should be focused on: 1) defining final ecosystem services based on beneficiary preferences and underlying biophysical mechanisms, 2) establishing wetland monitoring programs at specific sites to collect data on final ecosystem service indicators and ecosystem characteristic metrics to create ecological production functions for economic valuation and rescaling techniques, and 3) incorporating wetland ecosystem service values into decision-making processes to inform wetland management.  相似文献   

Assessing suitability of rural settlements using an improved technique for order preference by similarity to ideal solution   总被引：1，自引：1，他引：0  

Yanfang Liu  Jiaxing Cui  Xuesong Kong  Chen Zeng 《中国地理科学(英文版)》2016,26(5):638-655

Land suitability assessment is a prerequisite phase in land use planning; it guides toward optimal land use by providing information on the opportunities and constraints involved in the use of a given land area. A geographic information system-based procedure, known as rural settlement suitability evaluation (RSSE) using an improved technique for order preference by similarity to ideal solution (TOPSIS), was adopted to determine the most suitable area for constructing rural settlements in different geographical locations. Given the distribution and independence of rural settlements, a distinctive evaluation criteria system that differed from that of urban suitability was established by considering the level of rural infrastructure services as well as living and working conditions. The unpredictable mutual interference among evaluation factors has been found in practical works. An improved TOPSIS using Mahalanobis distance was applied to solve the unpredictable correlation among the criteria in a suitability evaluation. Uncertainty and sensitivity analyses obtained via Monte Carlo simulation were performed to examine the robustness of the model. Daye, a resource-based city with rapid economic development, unsatisfied rural development, and geological environmental problems caused by mining, was used as a case study. Results indicate the following findings: 1) The RSSE model using the improved TOPSIS can assess the suitability of rural settlements, and the suitability maps generated using the improved TOPSIS have higher information density than those generated using traditional TOPSIS. The robustness of the model is improved, and the uncertainty is reduced in the suitability results. 2) Highly suitable land is mainly distributed in the northeast of the study area, and the majority of which is cultivated land, thereby leading to tremendous pressure on the loss of cultivated land. 3) Lastly, 12.54% of the constructive expansion permitted zone and 8.36% of the constructive expansion conditionally permitted zone are situated in an unsuitable area, which indicates that the general planning of Daye lacks the necessary verification of suitability evaluation. Guidance is provided on the development strategy of rural settlement patches to support decision making in general land use planning.  相似文献