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81.
分宜县土地细碎化的中观尺度研究 总被引:11,自引:0,他引:11
研究目的:借鉴土地格局领域的研究思路,在中观尺度上研究土地细碎化,以期在研究方法、数据获取等方面寻求突破,并利用2004年分宜县遥感影像解译的土地利用矢量对10个乡镇土地利用细碎化进行研究。研究方法:文献资料法,景观格局指数法,聚类分析法。研究结果:在中观尺度上研究土地细碎化问题,得到与微观尺度研究截然不同的结论——低山区土地细碎化程度最低,其次是平原区,而丘陵区的土地破碎化程度最高。研究结论:分宜县各乡镇土地利用细碎度指标的聚类结果空间分布规律特征十分显著。 相似文献
82.
This special issue integrates eleven papers focussing on indicators able to convey the multiple expectations that society has concerning agricultural land. As scale issues have been so far overlooked within this research topic, a particular focus of this themed issue is to highlight the need for reconciling assessments across scales. The shared purpose of the contributions is to examine how the multiple societal expectations concerning agrarian landscapes might be incorporated into land use policy at different governance levels.A core set of these papers were presented in the symposium “Linking social indicators across scales”, to the European Congress of the International Association of Landscape Ecology (IALE) in September 2013 in Manchester, UK. This symposium was organized to create the time and space for a discussion on the issues of scale when capturing societal preferences concerning agrarian landscapes. While the landscape scale was specifically addressed by four papers, seven papers examined broader geographic units in addition to up-scaling and downscaling issues. 相似文献
83.
对一县城道路入口处的废置取土场37m高边坡进行治理,并根据取土场现状地貌设计假山、人工瀑布、绿化设计等进行景观提升改造,通过优化绿地空间格局,完善公园的游览系统、服务设施、植物群落等方面,有效改善入城口区域城市风貌,同时也为周边的社区居民提供日常休闲、娱乐、游览和康体活动的公共空间,并充分发挥其作为南部新城区域中心森林... 相似文献
84.
Measuring the recreational value of agricultural landscape 总被引:11,自引:0,他引:11
85.
湖南西部山区开发是该区脱贫的重要措施,也是维持自然生态安全的重要保障;如何实现湖南西部山区可持续发展和生态安全保障的双赢,对该区扶贫及今后的开发具有非常重要的意义。过去的开发,存在着毁林开荒,毁草开荒;森林资源经营不当;生物多样性资源价值认识偏颇;城镇化过程无序;扶贫方式等方面的问题与不足,这些问题可采用景观生态规划先行,实施森林分类经营,加强天然林保护工程建设,进行生态农业和生态村镇建设,开展山区景观生态建设等景观生态学途径来实现。 相似文献
86.
87.
基于较详尽的资料,分析雅安市自然、社会、经济概况,生态旅游可持续发展的原则,生物、地文、水体和人文生态等旅游景观特色资源。结果表明:(1)3N生态旅游已成为当今世界的潮流。(2)雅安市是一个充满独特魅力的生态旅游城市。(3)雅安市具有世界罕见的生物生态旅游景观资源,非常丰富的地文、水体和人文生态旅游景观资源,各种资源分布广泛,相互交叠。(4)雅安市素有天府之肺之称,空气和水资源质量优异。(5)雅安市生态旅游景观资源具有储量丰富、资源类型众多、文化多元和区位优势良好等特色。(6)在雅安市生态旅游资源开发中应注意遵循永续利用、保护性开发、特色性、协调性、社会经济效益和环境效益相统一等原则。 相似文献
88.
黑龙江省湿地资源及管理的景观生态学研究 总被引:4,自引:0,他引:4
钟栎娜 《国土与自然资源研究》2004,(4):58-60
为了科学解决黑龙江省湿地资源的管理问题,将黑龙江省湿地资源分为西部松嫩平原区、东部三江平原区、南部长白山区及北部大小兴安岭山区等四大湿地生态区,利用景观生态学的原理分别对四大湿地生态区进行景观格局的分析,提出进行生态管理的办法。 相似文献
89.
North America has few cultural agricultural landscapes, and often commensurately poor governance arrangements for managing change in such settings. This research uses the Acadian dykelands of Nova Scotia, Canada, as an opportunity to explore the social and governance limits to coastal climate adaptation in ‘new world’ cultural agricultural landscapes, as well as inform local decision-making. Approximately half of Nova Scotia’s coastal wetlands were converted to dykeland in the 1600s, lowering local resilience to the increased frequency and storm severity anticipated with climate change. Today, dykelands protect a diversity of public and private interests, meanings and values, yet are controlled by the agricultural sector, which can no longer afford to maintain them all to 2050 climate projections. We report here on a representative online Q-methodology survey of 183 adult Nova Scotians in the spring of 2015. Respondents sorted 34 statements along a normal distribution about whether they prefer dykeland maintenance or wetland restoration, and under what governance arrangements. Four factors were derived: the dominant discourse was local, female and strongly pro-dykeland, indicating the likelihood for local resistance to dykeland removal on for cultural, recreational and farming reasons. The second factor was supportive of wetland restoration for reasons of efficiency, not wetland affinity, but characterized by those in positions of management power. The two minority viewpoints were less informed about dykelands, characteristic of outsiders, and concerned more with governance. More education is needed about the challenges facing dykelands, the benefits of coastal wetlands, and the management options, but this research shows proposals to change landscape should emphasize flood mitigation over cost-saving. Cultural values and status quo bias are clearly barriers to adaptation planning, even when discussing the removal of man-made structures. The factors were surprisingly polarized, suggesting the forced-normal distribution affects the space available to convey nuanced perspectives. Large p-set Q-method of this kind is likely most useful for characterizing the emergent discourses demographically, and understanding their prevalence; the same discourses had emerged within a much smaller pilot study. 相似文献
90.