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1.
UTILIZATIONANDSUSTAINABLEDEVELOPMENTOFISLANDMOUNTAINSINCHINA①ZhangYaoguang(张耀光)YangYinkai(杨荫凯)InstituteofMarineResources,Liao...  相似文献   

2.
There is uncertainty and limited knowledge regarding stand characteristics and soil properties of middle-aged pure forest plantations in the mountainous area of Western Sichuan. Plantation forests are almost exclusively planted as monocultures in the Pengzhou forest farm in the western mountainous area of Sichuan Province. This study aimed to assess the spatial and ecological characteristics of middle-aged Cunninghamia lanceolata(Lamb.) Hook. and Cryptomeria fortunei Hooibr. in the Pengzhou forest farm. The relationships and differences between stand growth characteristics and forest soil composition were assessed on the two forests planted simultaneously within the same area and exposed to the same environmental conditions. Cr. fortunei grew sparse, and slower than Cun. lanceolata. Principal component analysis indicated that the soil properties in the Cr. fortunei plantation were better than those in the Cun. lanceolata plantation. Redundancy analysis revealed that the differences in stand structure were affected significantly by the total nitrogen content and pH value. Thus, we propose that Cr. fortunei is planted for priority consideration in the subtropical high mountain area. Further, tending operations and application of fertilizers need to be conducted in Cun. lanceolata forests. Based on theoretical and experimental data, the present study explains why local farmers are more willing to plant Cr. fortunei, and thus provides a useful theoretical reference for the development of sustainable plantations in the future.  相似文献   

3.
2009年《海岛保护法》的颁布是我国海洋法制建设史的里程碑。为实现无居民海岛的可持续发展,必须加强对无居民海岛的保护与管理,规范开发利用秩序。法制是无居民海岛可持续发展的重要保障,健全对无居民海岛的保护立法应结合《海岛保护法》的有关规定,进一步完善无居民海岛的权属制度,建立合理利用无居民海岛的法律制度。  相似文献   

4.
坚持流域综合管理促进人与自然和谐发展   总被引:1,自引:0,他引:1  
针对鄱阳湖流域曾出现的水土流失、生态环境恶化和水旱灾害频繁等问题,积极探索流域综合管理的机制与方法,实施"山江湖综合开发治理工程",有步骤地进行生态环境整治和建设,把治山治水与发展经济结合起来,努力使社会经济发展和环境保护、生态建设结合起来。经过二十年的不懈努力,打造出一个"绿色江西",提高了区域可持续发展能力。进入新世纪以来,提出的"既要金山银山,更要绿水青山"发展思路,在继续保持良好生态环境的前提下,加快了社会经济发展。  相似文献   

5.
随着广东省海洋经济发展,其无居民海岛利用的深度和广度进一步加大,相关政策的作用开始凸显,但经济效益型无居民海岛无人问津、生态保护型与生态修复型无居民海岛遭严重破坏、海洋权益型无居民海岛亟需保护等问题严重。针对当前现状,政府今后的政策趋势应主要集中在三方面:一是明确产权管理,二是加强执法力度,三是实行分类管理。在制定无居民海岛发展政策时,要结合地方特点并不断探讨、制定与国家层面相配套的地方法规和政策措施,从而推动无居民海岛的可持续发展。  相似文献   

6.
The northeast region is one of the principal mire distribution regions in China. According to the process of peat formation and accumulation , middle geomorphology type controlling water source supplement and the plant cover, 2 types, 10 subtypes and 27 mire bodies are divided. The mire area decreases gradually from north to south. There is more peat mire in the mountain and there is mainly gley mire without peat in the plain. The paper also explains the mire types in the principal mire distribution region and the utilization of mire in the fields of agriculture, forest, animal husbandry. The mire is a wetland ecosystem. It can reserve a lot of water, adjust rivers, humidify air. Thereby , attention must be paid to protecting ecological balance in the process of reclaiming mire and the mire protection.  相似文献   

7.
乡村空间治理是国土空间治理的重要组成部分,全域土地综合整治是实施乡村空间治理的重要手段。乡村空间治理从要素上是对山水林田湖草等自然资源要素的治理,从功能空间上是对生态空间、生产空间和生活空间的治理。以山东省沂源县流水片区为例,探讨基于全域土地综合整治的乡村空间治理路径和方式。乡村生态空间治理,首先构建乡村生态空间网络,强化重要生态空间保护,注重山体、水系等生态空间修复;其次,优化产业发展布局,促进特色产业规模化发展;再次,优化村落空间结构形态、完善街巷空间组织、增加公共活动空间、营造温馨庭院空间,使得人们能够“望得见青山,看得见绿水,记得住乡愁”。  相似文献   

8.
土地综合整治是在土地整治中寻求多功能多效益共赢的过程.山水林田湖草生态保护修复首先要体现生态的系统性,目的是实现人类生存发展与自然的和谐统一.2017年12月国土部、环保部、财政部联合批复了泰山区域山水林田湖草生态保护修复试点,作为全国11个试点之一,泰安市片区通过政府及相关部门合力推进,于2021年7月市级初验.本文...  相似文献   

9.
枣庄市山体资源丰富,矿产资源开发利用程度较高。资源开发利用在很长时期内促进了枣庄市经济的快速发展,但也遗留了很多地质环境问题。本文总结了枣庄市破损山体调查工作技术方法,根据调查成果和现行的枣庄市矿山地质环境保护和治理规划,系统分析了全市破损山体的分布特征及存在的地质环境问题。综合参考全市"生态红线"划定成果、破损山体与"三区两线"可视范围位置关系,根据估算的破损山体可供开采资源量,提出了全市破损山体的生态修复模式建议。  相似文献   

10.
Europe's mountains cover nearly half of the continent's area and are home to one fifth of the European population. Mountain areas are hotspots of biodiversity and agriculture has played a multifunctional role in defining and sustaining mountain biodiversity. Ongoing trends of agricultural decline are having negative impacts on mountain biodiversity. This paper presents results from an interdisciplinary European research project, BioScene, which investigated the relationship between agriculture and biodiversity in six mountain study areas across Europe to provide recommendations for reconciling biodiversity conservation with social and economic activities through an integrated rural development strategy. BioScene used scenario analysis and stakeholder participation as tools for structuring the analysis of alternative mountain futures. Three main BioScene scenarios were evaluated: Business as Usual (BAIT), Agricultural Liberalisation (Lib), Managed Change for Biodiversity (MCB). BioScene brought together ecologists, economists, sociologists and rural geogra- phers, to carry out interdisciplinary analysis of the scenarios: identifying key drivers of change, assessing the biodiversity consequences and evaluating costeffectiveness. BioScene used a sustainability assessment to integrate the research outputs across natural and social science disciplines to assess the broader sustainability of the scenarios in terms of biodiversity, natural resources, rural development, social development, economic development and institutional capacity. The sustainability assessment showed that the MCB scenario was potentially the most sustainable of the three BioScene scenarios. Through the reconciliation of potentially conflicting objectives, such as conservation, economic development and human livelihoods, and with a strong participatory planning approach, the MCB scenario could represent an alternative approach to BaU for sustainable rural development in Europe's mountains. BioScene confirms the necessity for natural and social scientists to work together to seek solutions to environmental problems. Interdisciplinary research can assist with the definition of integrated strategies with the potential to reconcile the ecological, social and economic parameters that determine a sustainable future for European mountain areas.  相似文献   

11.
城市的快速扩张诱发并加剧了城市热岛效应,对人类健康和生存发展提出严峻挑战,因此,探索城市组成对城市热岛的影响具有重要意义。本研究在传统城市热岛影响因子的基础上,重点分析城市组成与城市热岛的关系。以13个中国大城市为研究区,利用2015年夏季(6-8月)白天和夜间的MODIS LST数据计算城市热岛强度,并结合土地覆盖数据、人口、区位和气象数据,分析热岛强度和城市地表组成、地表空间格局、人口和区位4类因子的关系。研究结果表明:中国的13个大城市均存在不同程度的热岛效应,城市白天的热岛效应比夜间显著。影响城市白天热岛强度的主要因子为城市建筑用地和林地面积比例、城市建筑用地和林地平均斑块面积、城市建筑用地聚集度和人口密度。城市建筑用地和林地平均斑块面积、城市建筑用地聚集度和林地斑块密度是夜间热岛强度的主要影响因子。城市建筑用地面积和乡村林地面积的增加会导致城市热岛情况的加剧,而通过调节城市地表空间格局(减少平均建筑用地斑块面积和降低建筑用地斑块聚集度)可以更好地降低城市地表温度,减缓城市热岛效应。  相似文献   

12.
地貌是指地势高低起伏的变化,即地表的形态。地貌划分对气温、降水、太阳辐照等诸多应用领域都有着重要作用。本文选择空间分辨率为90 m的福建省的数字高程模型(DEM)数据作为地理信号,运用二维经验模态分解(BEMD)进行分解处理,得到多个具有不同尺度、不同物理意义的本征模函数(BIMF1-BIMF3)以及对应余量ORIG。这些BIMF分量对应不同尺度的微观地形,ORIG余量表现为该研究区的地貌分布趋势,体现了平原、丘陵与山地的大致分布区域。运用变点分析法确定最佳计算单元,利用地形起伏度对各个信号区域进行一级分类,依据绝对高度进行二级分类,最后将一级分类与二级分类相结合,实现对地形的分类,这一分类过程体现了研究地区地貌组合复杂的特征。结果表明:①叠加BIMF分量,提取出分量和大于74 m的区域为高频信号区域。该区域以小起伏度的低山为主,并伴随有丘陵和小起伏度中山。②ORIG余量中余量高度小于等于340 m的区域,去除其中包含的高频信号区域后为低频信号区域,该区域以平原、丘陵为主。③剩余区域定义为中频信号区域,该区域的地貌以平丘陵和小起伏的山地为主。研究成果表明福建地貌可分为7种主要类型:低频平原,低频丘陵,中频丘陵,高频丘陵,中频小起伏低山,高频小起伏低山,高频小起伏中山。  相似文献   

13.
This paper discusses the constraining factors to sustainable utilization of water resources in China,and the countermeasures to realize sustainable water utilization.The result of comprehensive analysis shows that constraining factors to sustainable utilization of water resources in China are complicated, including physical geographi cal factors and socio-economic factors, such as uneven distribution of water resources at temporal and spatial scales,inappropriate institutional arrangement and non-water-saving and non-water-conservation production and life mode.The countermeasures against constraining factors to water resources sustainable development are put forward as follows: l) using wetlands and forests, and through spatial conversion to realize temporally sustainable supply of water resources; 2) transferring water between basins and areas and developing various water resources in water shortagearea; 3) establishing water-saving society; 4) strengthening water pollution control and water resources protection;and 5) establishing unified water resources management mechanism.  相似文献   

14.
1 BACKGROUND The Taihang Mountains is located in the western part of Hebei Province. It is bounded by the North China Plain to the east, the Shanxi Plateau to the west and the Yanshan Mountain to the north; the southern boundary is formed by the Huanghe (Yellow) River. It has an area about 30 000 km2, occupies about 17% of the total area of Hebei Province. The Taihang Mountains has a continental monsoon climate, with the mean annual temperature between - 1.7℃ to 13℃ and mean ann…  相似文献   

15.
In Meghalaya, northeast India, the local people have the tradition of managing forest resources since early ages. The management practice varies and there are forests with high degree of protection, where no extraction (sacred forests) is allowed. There are also forests with moderate- level of protection and -extraction (reserved forests) as well as forests with low level of protection and open extraction (village forests). The present study was conducted to understand the impact of this traditional management system on the level of human disturbance, and on community composition and structure of the forests in Khasi hills of Meghalaya. The result revealed that disturbance index was low, whereas species richness, density and basal cover were significantly high in forests with high degree of protection (sacred forest) than those with low protection (reserved and village forest). Majority of endemic and threatened plant species were restricted to sacred forests as compared to the other forest types. Though these practices have ensured the sustainable use of forest resources by the local people but due to increased human- pressure and -disturbances, more effective conservation strategies need to be undertaken. Therefore, providing alternatives for fuel Received: 28 July 2016 Revised: 1 October 2016 Accepted: 15 December 2016 wood to local people, environmental education, encouraging afforestation and developmental activities involving local communities are recommended.  相似文献   

16.
Sustainable tourism, as an integral part of sustainable development, emerged as a logical outcome of preventing the uncontrolled and excessive use of tourism resources and attractions. This study analyzes whether mountain tourism development in Serbia can be sustainable and feasible in the long term. Given the heterogeneity of mountains in Serbia in terms of tourism development, the subject of this research is the achieved level of sustainable tourism development in mountains in the most developed and most visited region in Serbia-?umadija and Western Serbia: Zlatibor, Kopaonik, Tara, Zlatar, Mokra Gora and Go?. The sustainable tourism development level was analyzed by using five groups of the EU's comparative indicators: economic, social, cultural, environmental and tourist satisfaction indicators. The results showed that the development of tourism in the examined mountains is not fully aligned with sustainable development. The tourist satisfaction indicator has the most acceptable values, which is a good basis for further harmonization of tourism development on the principles of sustainability. Economic indicators, especially the ratio of overnight stays and accommodation capacities, show the most unacceptable values, which indicate the need for implementing changes in the process of tourism development in the coming period. The analysis of sustainable tourism in mountain areas in ?umadija and the Western Serbia undoubtfully points out that it is necessary to significantly change the current tourism product portfolio, which implies harmonizing mountain tourism development with global trends. Certainly, a comparative analysis that looks at the degree of sustainability of mountain tourism in some countries of the Alpine region, such as Switzerland, Austria and Slovenia, contributes to this. The more intensive development of tourism throughout the year would significantly improve indicators of sustainable tourism in all analyzed mountain areas of ?umadija and Western Serbia. This would improve the value of economic indicators, which are marked as the most unsustainable. The development of tourism in the summer season, especially recreational and adventure tourism, would improve the social and cultural component of sustainable tourism. Environmental dimension of sustainable tourism would be enhanced by the development of ecotourism. By connecting spatially close mountains(Zlatibor, Zlatar, Tara and Mokra Gora) into a unique and integrated tourism destination, synergistic effects would be achieved resulting in international recognition and making the region of ?umadija and Western Serbia competitive on the European market.  相似文献   

17.
The degeneration of forest landscapes is mainly caused by human impact on the natural environment, which is posing a great threat to biodiversity. We studied the relationship between forest landscapes and birds in mountain regions of Xishuangbanna, Yunnan Province. In Jinuo ethnic region, forest landscape is degenerating, and bird diversity is reducing as a result of human influence. However, in Hani ethnic region of Mengsong area, a comparative study area, there are also traditional practices of agriculture and forestry. The traditional practices are dynamically adaptive to local geographic environment and social economic conditions. A great deal of biodiversity exists in the place where people have lived for many generations and use the resources of environment in a sustainable manner. Considering bird diversity and forest landscape of mountainous area, both economic and ecological benefits should be taken into account, which relate to land use and landscape protection. Biodiversity conservation, resource management and policy making should pay much attention to the best interconnection of land use and landscapes protection.  相似文献   

18.
Continental shelf islands are contributors of terrestrial sediment supply to shelf regions,and the sediment flux from these islands shall be quantified.We calculated the sediment flux of continental shelf islands in the southeastern China using two empirical equations under two preconditions.The first,the sediment load/yield of the islands has the same pattern as the adjacent small,mountainous rivers along the coastline;and the second,each of the islands was treated as a single catchment.The results show that the sediment supply from these islands reached an order of magnitude of 1 Mt/a,which is comparable to the supply from the local smaller rivers.A sensitivity analysis indicates that this value repre sents the lower limit of estimate;if the accurate amount of sub-catchments of any island is considered,then this value will be enhanced slightly.This study demonstrates that the sediment supply from continental shelf islands to oceans is an important factor affecting the regional sedimentation and,therefore,should be paid with attention.  相似文献   

19.
旅游型海岛人地关系和谐发展是全球关注的热点,立足于居民环境感知的视角,从基层、微观层面分析旅游型海岛人地关系状况、存在问题与解决途径。以台湾海峡西岸旅游型海岛鼓浪屿、湄洲岛为例,结合实地考察与问卷调查,探寻其人地关系和谐发展的路径,结果显示:鼓浪屿与湄洲岛人地关系的发展存在差异性,旅游因素明显推动海岛人地关系发展;旅游型海岛人地关系处于转型时期,需要对海岛居民生产方式、旅游业发展、生态环境变化进行动态监测和调整。  相似文献   

20.
1GENERALSITUATIONOFTHESTUDIEDAREA1.1NaturalEnvironmentThestudywasconductedintheJinuoMountain(20°53′11″-22°9′59″N,100°55′33″-1...  相似文献   

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