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1.
甘肃白龙江流域生态系统服务变化及权衡与协同关系   总被引:22,自引:3,他引:19  
甘肃白龙江流域是长江上游主要的水源涵养区和环境脆弱区,近几十年来高强度的人类活动加剧了生态环境压力,因此开展白龙江流域生态系统服务变化及权衡协同关系研究对该区域的可持续发展具有重要意义。本文通过生态系统服务变化指数(ESCI)、空间自相关、相关系数法,定量分析了1990-2014年甘肃白龙江流域生态系统服务时空变化过程、空间集聚特征及生态系统服务间的权衡与协同关系。结果表明:① 1990-2014年间产水量、碳储量、土壤保持和农作物生产4种典型生态系统服务的ESCI值变化迥异,空间分布各具特色,具体表现为:产水量ESCI极值变化超过1倍且前后两时段(1990-2002年,2002-2014年)分布格局有较大出入,而两时段内的碳储量ESCI值变化相同,分布格局也相似,土壤保持ESCI值两极化趋势较农产品生产不明显,但这两者后一时段均与前一时段的ESCI分布相反;② 4种典型生态系统服务存在空间自相关,局部上正相关类型“组团”出现,集聚性较强,负相关类型散布,集聚性低,空间异质性显著;③ 两种供给服务(产水量与农作物生产)呈负相关的权衡关系,两种调节服务(碳储量与土壤保持)呈正相关的协同关系,不同的供给和调节服务之间关系既有权衡也有协同关系;④ 数值关系上,不同生态系统服务之间的权衡/协同关系在Moran's I和相关系数上表现不一;空间格局上,生态系统服务间的权衡/协同关系异质性显著。  相似文献   

2.
Gao  Jiangbo  Zuo  Liyuan 《地理学报(英文版)》2021,31(1):111-129
A clear understanding of the relationships among multiple ecosystem services(ESs) is the foundation for sustainable urban ecosystem management. Quantitatively identifying the factors that influence ES trade-offs and synergies can contribute to deepening ES research, from knowledge building to decision making. This study simulated soil conservation, water yield and carbon sequestration in Beijing, China, from 2015–2018. The spatial trade-offs and synergies of these three ESs within the five major river basins in Beijing were explored using geographically weighted regression. Furthermore, geographical detector was applied to quantitatively identify the driving mechanism of the environmental factors for the ES trade-offs and synergies. The results show the following:(1) the spatial relationships between soil conservation and water yield, as well as between water yield and carbon sequestration, were mainly trade-offs. There was a spatial synergy between soil conservation and carbon sequestration.(2) Regarding the spatial trade-off/synergy between soil conservation and water yield in Beijing, the dominant influencing factor was temperature/elevation, and the dominant interactions of the spatial trade-off and synergy between these two ESs in Beijing and the Chaobai River Basin are all manifested in the superposition of precipitation and potential evapotranspiration, temperature, and elevation.(3) Topographic factors were the dominant factors influencing the spatial relationship between soil conservation and carbon sequestration in Beijing and its five major river basins. As a result of the distribution of water systems and hydrological characteristics of the basins, differences were observed in the effects of different combinations of interaction factors on the spatial relationship between these two ESs in different basins.(4) Temperature had the strongest explanatory power in terms of the spatial trade-offs and synergies between water yield and carbon sequestration. The interactions between precipitation and temperature and between precipitation and elevation were the dominant interactions affecting the spatial relationship between water yield and carbon sequestration in Beijing. Overall, the explanatory power of influencing factors on the trade-offs and synergies and the degree of interaction between factors coexist in different basins with consistency and differences. Therefore, understanding the quantitative characteristics of basin-scale spatial trade-offs and synergies between ESs is important for ecosystem management and the promotion of synergy in different basins.  相似文献   

3.
Productive conservation, a sustainable development concept for the Amazon, ideally leads to economic development in rural areas with conservation of rain forest ecosystems. This study evaluates the human and environmental dynamics of productive conservation in Rondonia, Brazil, using as a case study beekeeping, which has been promoted by the World Bank-funded Rondonia Natural Resources Development Project. Promoters of beekeeping have given little attention to basic ecological or political economic issues that determine whether the practice contributes to ideals of productive conservation. While beekeeping can generate significant increases in household income, beekeeping cooperatives may become overdependent on donor funds. Once the flow of productive conservation donor funds stops, organizations may fail, making it too difficult for beekeepers to maintain their operations. Beekeeping does not lead directly toward rain forest conservation. Moreover, beekeeping almost exclusively employs introduced Africanized “killer” bees, commercially exploitable in the Amazon only because deforestation has temporarily created suitable habitats for them. Given the human and environmental configuration of beekeeping in Rondonia, the paper suggests ways to direct beekeeping toward accomplishing the goals of productive conservation.  相似文献   

4.
Productive conservation, a sustainable development concept for the Amazon, ideally leads to economic development in rural areas with conservation of rain forest ecosystems. This study evaluates the human and environmental dynamics of productive conservation in Rondonia, Brazil, using as a case study beekeeping, which has been promoted by the World Bank‐funded Rondonia Natural Resources Development Project. Promoters of beekeeping have given little attention to basic ecological or political economic issues that determine whether the practice contributes to ideals of productive conservation. While beekeeping can generate significant increases in household income, beekeeping cooperatives may become overdependent on donor funds. Once the flow of productive conservation donor funds stops, organizations may fail, making it too difficult for beekeepers to maintain their operations. Beekeeping does not lead directly toward rain forest conservation. Moreover, beekeeping almost exclusively employs introduced Africanized “killer” bees, commercially exploitable in the Amazon only because deforestation has temporarily created suitable habitats for them. Given the human and environmental configuration of beekeeping in Rondonia, the paper suggests ways to direct beekeeping toward accomplishing the goals of productive conservation.  相似文献   

5.
Tiger conservation often requires local-level support to avoid facing serious political challenges. In order to address the political challenges, the social capital of communities can be utilized to create community action and to help understand local dynamics. We studied the social capital in two villages bordering Corbett Tiger Reserve, India. Our results indicate that social capital of local communities is a significant determinant of potential for community action to support or oppose tiger conservation outcomes. Our results also indicate that specific components of social capital (solidarity, reciprocity and cooperation, networks, and mutual support) were critical in this potential community action. Further, the data suggest that the decline of social capital was led by the financial disparities created by unplanned growth of tourism outside the reserve boundaries. We suggest that policy and management interventions should consider social capital of local communities and ways in which it may support tiger conservation in India.  相似文献   

6.
International examples of interactions between Indigenous peoples and the new conservation paradigm come mainly from developing countries and suggest divisions over priorities. As a Western settler society, Australia is at a critical time in conservation and Indigenous peoples' rights. Innovative approaches to conservation are promoted. The role and influence of non-governmental organisations is increasing. Indigenous peoples' rights to land are recognised and Indigenous involvement in conservation is growing. Yet, despite Australia being considered a leader in these arenas, particularly the latter, there has been little analysis of the relationship between innovative approaches to conservation and Indigenous Australians under the new paradigm. This paper describes how the spatial manifestations of approaches under the new conservation paradigm and Indigenous land in Australia are creating new geographies. We identify geographies of overlap, dichotomy and absence. The paper identifies research needs into these geographies, including: examining the influence of ‘recognition’ in engagements between conservation and Indigenous Australians; investigating the impacts of approaches under the new paradigm such as scaling-up, territorialism and differing governance structures on Indigenous Australians; and questioning the social responsibilities of the non-governmental organisations towards Indigenous Australians.  相似文献   

7.
Conservation Development (CD) is a land-use tool to reduce the impacts of development on natural resources, yetthe use of CD is highly variable. We used a collaborative conservation model to examine factors influencing adoption and implementation to improve the future application of CD. We interviewed 2–3 individuals including planners, board members, and developers (n?=?46) from 16 rural communities in the intermountain west and northeast U.S. Motivations to preserve rural character or comply with state statutes drove adoption. Greater capacity such as outside expertise, model regulations, and iterative revisions of ordinances was associated with stronger ordinances. Adoption processes including ample dialog across diverse constituents, especially those overseeing subdivision development, facilitated higher rates of implementation. Concerns over open space management, lack of successful CD examples, and inexperience with CD posed barriers to implementation. Understanding social context revealed the strengths and shortcomings of CD and provided guidance for strategically engaging communities in private lands conservation.  相似文献   

8.
银川城市湿地的保护与合理开发利用探讨   总被引:12,自引:0,他引:12  
在城市规划建设中,保护和开发利用好城市湿地对创造城市优良人居环境、实现可持续发展非常重要.以西北干旱半干旱地区银川市为例,阐述了城市湿地开发保护要以维护湿地系统生态平衡、保护湿地功能和生物多样性、实现资源的可持续利用为基本出发点,合理进行多方面开发利用,充分发挥城市湿地在城市建设中的生态、经济和社会效益等指导思想和原则,介绍了针对银川城市湿地特点所设计的挖掘"生态"和"游憩"两大主题的保护利用方法.  相似文献   

9.
The Yellow River Basin(YRB) occupies an important position in China’s socioeconomic development and ecological conservation efforts. Understanding the spatiotemporal characteristics of the relationships among multiple ecosystem services(ESs) and their drivers is crucial for regional sustainable development and human-earth system coordination. This study simulated food production(FP), water yield(WY), net primary production(NPP), soil conservation(SC), and habitat quality(HQ) in the YRB from 2000...  相似文献   

10.
采用"Bottom-up"方法和景观适宜性评价模型,从景观适宜性评价、湿地保护与开发的历史特点、物种栖息地保护的要求、有利于保护的生境转变方式等方面综合考虑,设计并模拟了盐城滨海湿地开发与保护的三种情景方案,从生态经济价值、成本效益分析、湿地保护与开发意愿等方面探讨协调保护与开发的湿地资源利用情景方案评价与比较。研究结果表明,以综合效益指标为情景方案比较标准时,保护情景方案为最优选择,但只实现了保护目标;以湿地保护与开发意愿指数为标准时,均衡情景方案为最优选择,且能较好地协调湿地开发与保护矛盾。  相似文献   

11.
Areas affected by drought are increasing, and many lakes that provide potable water and recreation opportunities are located in drought-vulnerable areas. Understanding a population's attitudes toward conservation actions can improve communication initiatives, policy development, and education, which are all necessary for effective water resource management. However, little is known about stakeholders’ interactions with drought-influenced resources and the potential factors that form their water conservation attitudes. Using a mixed methods approach, we evaluated lake recreationists’ (n = 229) attitudes toward water conservation at a drought-impacted lake. We identified the relationships between two site-specific factors (place attachment and awareness of drought impacts), beliefs in climate change, concern for drought impacts, and water conservation attitudes. Results indicated concern for local drought impacts fully mediated the relationships between site-specific factors, beliefs in climate change, and attitudes toward water conservation behaviors. Implications for research, outreach, and water resource management are discussed.  相似文献   

12.
黑河流域湿地资源保护对策   总被引:1,自引:1,他引:1  
黑河流域湿地资源由于管理体系不完善,造成了湿地资源的破坏、锐减和生态质量下降.使得黑河流域湿地资源的保护所面临的形势不容乐观。今后应按照全面保护、生态优先、突出重点、合理利用、持续发展的方针,坚持以保护求持续发展,以发展促湿地生态保护的战略,加强对黑河流域湿地资源的保护。  相似文献   

13.
Soil and water conservation technology plays an important role in soil and water loss control and the construction of the ecological civilization in vulnerable areas. Here, soil and water conservation technology use over 70 years for the Zhifanggou watershed is summarized and ecological, economic and social backgrounds are determined through consultation with experts and reference to published literature. We found that soil and water conservation technology use includes soil and water conservation engineering technology, soil and water conservation cultivation technology and soil and water conservation biotechnology. Soil and water conservation technology utilization varied with people’s demands and core problems at different developmental stages of the agricultural eco-economic system. The coupling process of the agricultural eco-economic system at Zhifanggou went through three stages. In stages I and II, soil and water conservation cultivation technology was applied to meet farmers’ basic life demands. In stage III, all three technologies were applied comprehensively to solve eco-environmental problems and adjust industrial structure. To facilitate regional ecological civilization construction and sustainable development of the ecological economy and society, more emphasis should be given to research and development, implementation of soil and water conservation technology, stand structure improvement, forest grass quality enhancement, biodiversity, ecosystem functional improvement, development of soil and water conservation ecological resources, the coupling of soil and water conservation, and agricultural industry-resource optimization.  相似文献   

14.
多情景模拟下粤港澳大湾区生态系统服务评估与权衡研究   总被引:4,自引:0,他引:4  
城镇化快速发展导致区域的生态系统服务衰减,威胁城市的生态安全;掌握城市群地区生态系统服务权衡/协同关系量化,对提升生态系统服务总体效益和维护区域生态安全至关重要。以粤港澳大湾区为研究区域,利用InVEST模型对粤港澳大湾区1995—2018年间产水服务、固碳服务、土壤保持服务、食物供给服务共4项生态系统服务进行评估,设定历史趋势情景、规划情景和生态保护情景,借助GeoSOS-FLUS模型进行2030年生态系统服务情景分析,探讨各种生态系统服务之间的权衡/协同关系。结果表明:① 1995—2018年间,粤港澳大湾区产水服务出现增加趋势,固碳服务、土壤保持服务和食物供给服务出现下降趋势。② 不同类型生态系统服务变化存在明显的区域异质性,产水服务高值区域其值增大,低值区域其值减小;固碳服务低值区域,其值下降更大;除香港外,土壤保持量减小的区域呈零星状分布;食物供给高值及减小的最大值位于东莞、佛山、中山和深圳等中部区域。③ 产水服务在规划情景下达到最佳,固碳服务和土壤保持服务在生态保护情景下最佳,历史趋势情景下食物供给服务最佳,生态系统服务综合效益在生态保护情景下达到最佳。④ 历史趋势情景下生态系统服务之间的权衡程度最大,生态保护情景下各项生态系统服务之间的协同程度较高。基于生态耦合模型进行粤港澳大湾区生态系统服务估算,揭示生态系统服务权衡或协同的变化关系及作用机理,可为区域生态系统服务管理和社会经济发展规划提供参考。  相似文献   

15.
社区视角下的农业文化遗产保护与旅游发展(英文)   总被引:1,自引:0,他引:1  
农业文化遗产中蕴含的丰富生物多样性和文化多样性是在当地社区的传统生活中不经意间保留下来的。这些生物多样性和文化多样性同时也是很好的旅游资源,通过旅游发展既能维持当地居民的生计,同时也可以有效保护农业文化遗产。本文以全球重要农业文化遗产——贵州从江县稻鱼鸭复合系统为例,讨论了农业文化遗产保护与旅游发展中的社区参与问题。构建了基于社区的农业文化遗产保护及旅游发展的概念模型,其核心观点为农业文化遗产在保护和社区适应方面是一个动态的过程。模型中的6个主要因子分别为:农业文化遗产社区、传统农业系统、生物多样性、文化多样性、可持续旅游发展、社区生计和社区文化身份。几个因子之间的作用是互相影响的,因此支持了农业文化遗产的保护以及农业文化遗产地的旅游发展。  相似文献   

16.
对我国湿地保护问题的思考   总被引:15,自引:8,他引:15  
印红 《湿地科学》2003,1(1):68-72
我国湿地正面临着来自人类的巨大威胁,生存型扩张的压力依然没有减轻,发展型扩张又严重威胁着湿地,导致自然湿地数量继续减少、湿地生态功能退化乃至丧失,已难以满足保障国家生态安全的需求。根据经济发展和人口、资源现状,我国的湿地战略应当是有限目标的国家战略。在湿地保护与合理利用总目标下,近期国家湿地战略以湿地保护为重点,即以保护自然(原生)湿地为主,对退化湿地进行生态恢复、重建和合理利用的示范为辅。  相似文献   

17.
鄂尔多斯市生态系统服务权衡与协同分析   总被引:2,自引:0,他引:2  
鄂尔多斯市是中国北方农牧交错带的中心,经济快速发展的同时带来生态环境巨大的压力,该区域生态系统服务及其相互关联的变化对半干旱地区的可持续发展具有重要意义。本文基于2000、2010年鄂尔多斯市的食物供给、碳储存、产水量以及土壤保持4种关键生态系统服务供给核算,采用相关分析探究栅格尺度上4种服务之间的权衡与协同关系,并引入玫瑰图对比不同土地利用类型的生态系统服务关联特征差异。研究结果表明:①2000-2010年鄂尔多斯市生态系统服务整体增强,平均食物供给量由99.5 kg·hm-2增至224.2 kg·hm-2,碳储存量由8.32 t·hm-2增至8.41 t·hm-2,平均产水量由153.64 mm增至291.90 mm,土壤保持量平均值由47.79 kg·hm-2增至59.04 t·hm-2;②产水与土壤保持之间存在协同关系(相关系数分别为0.972和0.771),食物供给与土壤保持之间存在协同关系(相关系数分别为0.505、0.736),食物供给和碳储存之间存在权衡关系(相关系数分别为-0.584、-0.512);③多重生态系统服务供给的热点区主要分布在鄂尔多斯市东部;④产水量和土壤保持、碳储存在耕地和林地中呈现此消彼长的变化方式,而在草地中4种生态系统服务同时增加。  相似文献   

18.
东北黑土区保护性耕作的发展现状与成效研究   总被引:1,自引:0,他引:1  
东北黑土区承担着国家粮食安全“稳压器”的重要责任。然而,由于长期超负荷开发利用导致黑土日益退化,黑土资源的永续利用受到严重制约。理论与实践证明,保护性耕作是保护黑土地、推动黑土耕地质量和耕作效益绿色增长的发展模式。综述了保护性耕作的基本内涵及其在东北黑土区的发展现状与技术概况,从保护性耕作在土壤保持、保墒效益、结构改善、固碳培肥和土壤生物多样性增加、节本增效等方面系统评估了东北黑土区实施保护性耕作后的生态与经济效益,提出黑土区实施保护性耕作存在的问题与未来发展方向,以促进黑土地保护与利用协调发展、推动保护性耕作高质量跨越式发展。  相似文献   

19.
山地占中国国土面积比重高,是我国破解区域发展不平衡矛盾的焦点区域,也是生态系统服务重要供给区,长期面临着经济发展和生态保护的双重压力与挑战。研究选取我国石漠化山地、新构造运动活跃区山地和北方土石山区的典型区域黔桂岩溶山地、横断山地和太行山地为案例,以支持服务中NPP(Net Primary Productivity)、调节类服务水源涵养和供给类服务农产品供给三类生态系统服务为代表,采用线性回归、相关分析等方法探讨了1990–2015年三大山地生态系统服务权衡与协同关系的时空特征。主要结论如下:(1)三大山地农产品供给服务相对下降,NPP和水文调节等支持和调节服务提升更为显著;(2)三大山地NPP与水文调节服务存在彼此增益的协同关系,黔桂岩溶山地协同关系增强,而横断山地和太行山地变弱,且前者变弱的程度更大;三大山地NPP、水文调节服务与农产品供给服务存在此消彼长的权衡关系,其中黔桂岩溶山地NPP与农产品供给服务权衡关系变弱,而横断山地和太行山地权衡关系增强,且后者变强的程度更大;(3)三大山地生态系统服务权衡与协同关系存在显著的空间分异。  相似文献   

20.
Social science research on nature conservation ascribes enclosures and the consequent evictions and dispossession of local people to unequal power relations. It reveals that the monopoly of power by the state configures new relations between local people and their natural resources, and legitimizes land grabbing. In this paper we build on this literature by engaging two questions. The first question relates to how land tenure regimes enable green grabbing and also configure the participation of local people in nature conservation enterprises. Knowing how land tenure regimes structure the involvement of local people in nature conservation is a necessary step toward an inquiry into the relationship between local people and protected areas. In the second question we ask how historical land tenure allocations enable current configurations of power relations in conservation areas. We use the case study of Mapungubwe on the Botswana‐South Africa‐Zimbabwe borderlands to demonstrate that historical land tenure allocations facilitate land alienation and the marginalization of local people in TFCAs.  相似文献   

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