长白山北坡主要建群种种群结构及重要值沿海拔梯度的变化

From 700 m to 1900 m on the northern slope of Changbai Mountain, 13 plots with an interval of 100 m in elevation were investigated to study the variations of population structure and important value of the main edificators along the elevation gradient. In their core distribution areas, most of the edificators had healthy population structure and could regenerate smoothly except Larix olgensis, but important value of Larix olgensis had no obvious variations with elevation changes, which showed that Larix olgensis had its own particularity and strong adaptability. At high elevation above 1800 m, Betula ermanfi was the only species that could form a mono-dominant community. Important values of Pinus koraiensis and Acer mono had similar changing trends, and they had the similar ecological adaptabilities.     

Problems and relevant strategies on natural forest protection in Changbai Mountain forest area

Changbai Mountain forest area is not only is a national timber base but also a green ecological defense for Songliao Plain of NE China. The Natural Forest Protection Project of this area has an important bearing on the social and economic sustainable development of Jilin Province or even the whole forest area in NE China. This paper summarized general conditions of natural forest in Changbai Mountain state-owned forest area and put forward six problems need to be urgently solved and five strategic suggestions on natural forest protection and sustainable management.     

广州市帽峰山森林公园空气环境质量初报

本文对广州市帽峰山森林公园中的旅游气候指标——温湿指数和风效指数、空气离子浓度含量和空气洁净度等空气质量因子进行了测定,并运用有关方法进行评价。结果表明,该森林公园的旅游气候资源适合全年休闲、旅游;空气负离子含量高,有益于人体健康;空气环境质量达到国家A级,这为广州市森林生态网络建设和旅游资源开发利用奠定科学、翔实的基础数据。       

山西太岳山辽东栎夏季树干液流通量研究

树干液流指蒸腾在植物体内引起的上升液流。土壤液态水进入根系后 ,由茎输导组织向上运送达冠层 ,经由气孔蒸腾 (包括角质层及皮孔蒸腾 )转化为气态水扩散到大气中去。根部吸收的水分有 99 8%以上消耗在蒸腾上 (王沙生等 ,1 991 )。通过精确测算茎流量 ,可以基本确定植株蒸腾失     

云南祥云水目山鸟类多样性研究

结合样线法和样点法、红外相机陷阱法对云南祥云水目山的鸟类资源进行调查。调查结果,共记录鸟类77种（或亚种）,分属9目27科,其中以雀形目鹟科鸟类种数最多,为29种,占记录种数的37.7%。统计结果,居留类型属于留鸟的有64种;区系划分中东洋种鸟类有70种;有8种列入国家重点保护野生动物名录,国家一级重点保护鸟类1种黑颈长尾雉（Syrmaticus humiae）,属祥云县境内首次发现,其余7种为国家二级重点保护鸟类。多样性分析结果,在不同生境中,Shannon-Wiener多样性指数和Pielou均匀度指数变化趋势为：针叶林＞阔叶林＞灌丛＞农田;而Simpson优势度指数变化趋势相反。受宗教文化影响,一些珍稀濒危物种得以保存。     

紫金山“野道”沿路植被现状与治理

大量登山人流对景区的植被造成了很大压力,道路两边植被破坏尤为严重,文章调查了南京紫金山两条"野道"沿路的植被现状,发现"野道"沿路演替受到抑制,先锋植物较多,栽培或逸生植物增多,更新层受到破坏,在此基础上,就紫金山景区道路规划与管理提出建议。       

星斗山自然保护区水杉母树的生长状况及保护策略

在湖北西部地区的星斗山国家级自然保护区西片利川市小河境内分布着大面积的水杉原生种群.近期对该原生种群的分布及生存现状进行了调查,针对其生境的恶化及遭受的病害、虫害、煤烟毒害及雷击害等情况,提出了相应的措施和对策.     

江西三清山裸子植物区系分析

对江西省三清山裸子植物区系调查统计结果表明,裸子植物8科、24属、31种,占江西省裸子植物(12科、41属、197种)的66.67%、58.54%和15.74%,占中国裸子植物(12科、49属、293种)的66.67%、48.98%和10.58%,其中自然分布有6科、14属、17种。科分布型以北温带和泛热带分布为主;属分布型以北温带和中国特有成分为主,东亚-北美间断分布和东亚成分也不少;种分布型以东亚和中国特有分布为主,热带亚洲分布也不少。按生态型分,温性针叶树种为主,占总属数的70.97%,暖性针叶树种占22.58%。与黄山、武夷山、天目山、井冈山和庐山裸子植物区系进行比较,并计算了三清山与各山地的相似性以及属种系数,结果表明:6个山地科和属分布型以北温带为主;种以中国特有分布型为主。三清山与五山地在科、属和种级水平上相似性系数及属种系数都很高,但在属种组成上有一定的差异性,最后,对各山地珍稀濒危保护物种进行了归纳统计。     

高黎贡山土壤肥力分布规律初步研究

对滇西高黎贡山不同海拔植被下发育的森林土壤理化性质进行了研究。采集了20个样地的土样,对各个成分进行了分析,即全K、全P、全N、速效K、速效P、水解性N、有机质、质地和pH。结果表明,高黎贡山森林土壤肥力水平高,且垂直变化十分明显。     

Habitat selection of Guizhou golden monkey （Phinopithecus roxellanae brelichi）in Fanjing Mountain Biosphere Reserve, China

Guizhou golden monkey (Phinopithecus roxellanae brelichi) is a peculiar, rare and endangered species. It is distributed most narrowly and requires a rigorous habitat. In this study the habitats of Guizhou Golden Monkey were divided into three habitats: most suitable habitats, suitable habitats and marginally suitable habitats. The characteristics of the vegetation community, environmental factors and extreme environmental factors in the three habitats were systematically analyzed. The seasonal activity rule, activity area and the food characteristic of Guizhou golden monkey were also study at the same time. The results indicate that the evergreen and deciduous broadleaf mixed forest is the optimal living vegetation community for Guizhoug olden Monkey, and the suitable annual temperature is 8-15℃, the extremely lowest temperature is -2.5℃, the extremely highest temperature is 25℃, and the optimal living altitude is 1500-1700 m. In the same area, the higher the vegetation diversitythe more suitable it is for the life of Guizhou golden monkey. Temperature and food are the main habitat factors in determining the activity scope of the guizhou golden monkey community. The Altitude, temperature and the characteristics of the vegetation community are the main limitina factors for habitat selection.