甘肃连城自然保护区4种云杉属植物种子可溶性蛋白的差异研究

利用SDS-聚丙烯酰胺凝胶电泳法对连城国家级自然保护区4种云杉属植物进行了种子蛋白谱带分析,以利对该区分类地位不明确的麻衣松进行分类地位的确定.结果表明,黑青杄和白青杄的谱带相似,谱带颜色较浅,二者与麻衣松的不相似值较大,分别为8.33和6.12;麻衣松和青海云杉谱带非常相似,谱带颜色深,不相似值为1.96,由此认为麻衣松可能是青海云杉的种内类型.     

Energy crops,livelihoods, and legal deforestation: A case study at Phu Wiang National Park,Thailand

Thailand aims to increase the use of renewable and alternative energy by 25% of total consumption under the Alternative Energy Development Plan (AEDP 2012–2021) by 2021, which include outputs from energy crops. This initiative is likely to put pressure on land resources, especially near parks and protected areas. Our study examined energy crop plantations, farmer responses to the AEDP, and community roles in forest protection in four villages adjacent to Phu Wiang National Park, Thailand in 2014. The majority of respondents (80%, n = 50) used their land for rice cultivation, but many villagers increased plantings of sugarcane (54%) and cassava (20%) because of high market demand for energy crops. Only a few examples of agricultural expansion into the national park were observed. Nevertheless, encroachment is likely to occur at this and other national parks as a result of government incentives to plant energy crops and the limited availability of agricultural land. Reliance on community-based management strategies may not be powerful enough for villagers to withstand the pressures of modernization, materialism, and other socioeconomic influences, possibly negating the effect of sustainability. Striking an equitable balance between government policies, community development, and forest protection will be a challenge for resource managers.     

河南鸡公山自然保护区野生保护植物优先保护定量分析

运用濒危系数、遗传价值系数和物种价值系数,对鸡公山自然保护区重点保护的37种野生植物的优先保护顺序进行定量分析。结果表明：最优先保护的有野八角、细茎石斛、天目木姜子和扇叶杓兰4种,占总数的10．81％;优先保护的有独花兰、天麻、天竺桂、楠木、莲、黑节草、三尖杉、中国粗榧、豹皮樟、青钱柳、河南山胡椒和河南鹅耳枥12种,占总数的32．43％;次优先保护的有香果树、榉树、黄檗、青檀、野菱、大果榉、黑壳楠、刺揪、铜钱树、珂楠树、暖木、玉铃花和万年青13种,占总数的35．14％;一般保护的有金荞麦、中华结缕草、野大豆、枫香、重齿槭、绞股蓝、飞蛾械和独根草8种,占总数的21．62％。提出进一步加强国家重点保护野生植物的保护对策。     

梅里雪山国家公园生物多样性保护规划方法研究

滇西北是中国生物多样性最丰富的地区之一,自2004起,有关部门就开始运用国家公园管理模式对该地区生物多样性进行保护.文章以梅里雪山国家公园为研究对象,对其生物多样性保护的规划方法进行研究.认为保护行动规划方法中的保护对象的确定、威胁因子的分析、制定并实施保护策略、成效评估4个关键步骤是实现国家公园生物多样性保护的有效逻辑方法.     

后河自然保护区野生保护植物优先保护定量研究

笔者在野外调查和查阅文献资料的基础上,研究了湖北五峰后河自然保护区国家重点保护野生植物的分布情况,并运用濒危系数、遗传价值系数和物种价值系数对其优先保护顺序进行了定量分析.结果表明:①后河自然保护区共有国家重点保护野生植物25种,其中Ⅰ级7种,Ⅱ级18种,分别占湖北省分布的54.4%、87.5%和47.4%;②采用优先...     

世界自然保护地治理模式发展趋势及启示

自然保护地的治理模式对于保护地保护目标的实现具有关键作用,改善治理可以帮助保护区实现生态、社会、经济和文化效益的最大化。文中介绍了国际上自然保护地治理模式的类型、应用现状并总结了未来的发展趋势; 在此基础上结合我国自然保护区的管理问题及我国当前国情分析,笔者认为当前我国自然保护区的治理模式应适当创新,逐步引入政府委托第三方治理、联合治理模式,现阶段形成以政府直接治理为主、其他治理模式为辅的多种治理模式并存局面。     

卧龙自然保护区震后小型陆栖脊椎动物调查

小型陆栖脊椎动物是一类稳定、灵敏、高效的环境指示动物,将它们作为生态环境变化的指针具有诸多的优越性。通过围栏陷阱法对卧龙自然保护区内小型陆栖脊椎动物在原始竹林与人工竹林中的分布情况展开调查,进而对保护区内小型陆栖脊椎动物资源现状进行评估,并科学地评估我区震后的生态环境。本次调查共记录到小型陆栖脊椎动物物种5目7科15种,其中两栖类2目2科2种,爬行类1目1科1种,小型兽类2目4科12种。采集的样品数量达到316只。     

伊川县创建国家级园林县城的可行性分析

指出了在十二五时期,伊川将创建国家级园林县城,结合此创建指标,探讨了从综合治理、绿地建设、建设管控、生态环境、节能减排等方面的体制保障和技术创新,阐明了创建国家级园林县城的可行性。     

Can plot edge bias be reduced by means of airborne laser scanning?

This paper presents new methods for plot edge bias (PEB) correction of individual tree competition indices (CIs) using airborne laser scanning (ALS) as auxiliary information in multivariate ratio and multivariate regression models. I applied the methods to 557 plots from the Norwegian National Forest Inventory located in Hedmark County in South East Norway and compared them to the benchmarks methods linear expansion and simulated annealing by studying the individual tree growth predictions before and after PEB correction. Generally, the simulated annealing method seemed to improve growth prediction most and overall the existing methods performed better than those based on ALS. All PEB-correction methods tested gave minor changes in growth predictions and the absolute change in percent in adj. R² and Akaike's Information Criterion (AIC) was numerically small, with an average percentage change for the tested CIs between 1.8 for adj. R² and 0.6 for AIC of the observed values in the original data. The small differences in the results between the original data and the PEB-corrected data show that on average PEB remains a minor problem for individual tree growth prediction. Whether the results are valid for forests with significantly different spatial composition than that of this database remains to be confirmed.     

Cohabitation of tree holes by ants and breeding birds in a temperate deciduous forest

A previously unknown association of ants with birds breeding in tree holes is described. Ants Lasius brunneus Latreille (Hymenoptera: Formicidae) were found in c. 15% of nests of Parus major L. and Poecile palustris L. (Paridae) breeding in tree holes in the primeval deciduous forest located in the Bia?owie?a National Park (Poland). The ants preferably used holes located higher above the ground. As such holes are warmer than the unused holes or other nest sites, it is suggested that the ants cohabit holes utilized by the tits to gain thermal benefits.