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介绍了吉林省扶余洪泛自然保护区野生动物资源的种类、分布、种群特征,以及国家重点保护野生动物资源种类,进而提出了保护野生动物资源的对策。 相似文献
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建平老虎洞山省级自然保护区野生动植物资源现状及保护对策 总被引：1，自引：0，他引：1
以建平老虎洞山省级自然保护区为对象,对其动植物资源进行调查与分类整理,结果表明:区内动植物资源丰富,有维管植物91科327属778种,其中国家Ⅱ级重点保护野生植物有3种,分别为黄檗、紫椴和野大豆;各类脊椎动物5纲27目70科357种,其中国家Ⅰ级重点保护野生动物为金雕和大鸨2种,国家Ⅱ级重点保护野生动物32种,省级重点保护野生动物56种。提出分区保护、设立管理站、运用社区共建管理模式、加大宣传教育和科研力度、适度开展生态旅游项目等保护对策。 相似文献
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《内蒙古林业调查设计》2021,(5)
文章根据新公布的《国家重点保护野生动物名录》,结合自然保护区监测及科考报告,对保护区重点保护野生动物名录进行了修订。内蒙古额尔古纳国家级自然保护区原记载国家Ⅰ级重点保护野生动物9种,国家Ⅱ级重点保护野生动物43种,修订后的名录中国家Ⅰ级重点保护野生动物21种,国家Ⅱ级重点保护野生动物72种。 相似文献
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浏阳市野生动植物资源极为丰富,有野生木本植物460多种,其中国家重点保护野生植物20多种,省级重点保护野生植物30多种。古树名木资源也相当丰富,其中挂牌保护的古树名木有3289株;各类保护野生动物180多种,其中国家重点保护野生动物30多种,国家＂三有＂保护野生动物150多种,境内还有4条候鸟迁徙线路贯穿。全市设市（县）级自然保护区13处,省级自然保护区1处。野生动植物资源是大自然留给我们人类的珍贵财富,是维系生态平衡和生物多样性的基础。随着社会与经济的高速发展,如何正确处理好保护与发展之间的矛盾, 相似文献
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为了解福建省省级以上自然保护区内国家重点保护陆生野生动物分布情况,采用数据分析的方法对福建省40个省级以上自然保护区内国家重点保护陆生野生动物的物种丰富度进行分析。结果表明：闽江源国家级保护区与戴云山国家级保护区、峨嵋峰国家级保护区相似性最高;福建省自然分布有国家重点保护陆生野生动物189种,40个省级以上自然保护区分布有147种,占比78%,有效保护了全省近80%的国家重点保护陆生野生动物;保护区分布有哺乳纲、昆虫纲、鸟纲、爬行纲国家重点保护陆生野生动物,保护了福建省自然分布的国家重点保护陆生野生动物种数各纲的83%、89%、77%、57%;存在物种生存空间日益不足,物种与其他保护区间交流、迁移少等问题。同时提出物种保护措施。研究结果可为科学区划、管理自然保护区,合理开展就地、迁地保护,有效保护遗传资源、促进人与自然和谐共生等提供参考。 相似文献
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一、非法捕杀国家重点保护野生动物的犯罪行为
这种行为，是指违反国家保护野生动物法规．捕猎或者杀害国家重点保护的珍贵、濒危野生动物的行为。国家重点保护的陆生野生动物共335种。包括国家一级保护的有97种，国家二级保护的有238种，非法猎捕或者杀害国家重点保护野生动物的，不论数量多少，都是严重破坏野生动物资源的犯罪行为．这种行为的主要特点是实施了非法故意猎捕或者杀害国家重点野生动物的行为。 相似文献
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黄龙山国家重点保护野生动物的保护对策 总被引：4，自引：0，他引：4
根据野生动物普查结果，按照《国家重点保护野生动物名录》分析了野生动物资源的现状，论述了黄龙山林区国家重点保护野生动物的种类分布及其保护建议。 相似文献
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笔者介绍了山西沁河源国家湿地公园的地理概况和植被概况,分析了湿地公园的生物多样性。沁河源国家湿地公园有植物资源109科436属848种,国家Ⅱ级重点保护植物1种。有野生动物26目64科216种,国家Ⅰ级重点保护野生动物3种,Ⅱ级重点保护野生动物28种。最后对湿地公园的资源现状进行了评价,以期为湿地公园今后的科学管理提供参考。 相似文献
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《Scandinavian Journal of Forest Research》2012,27(5):427-435
In Scandinavia, moose (Alces alces L.) sometimes cause severe browsing damage to economically-important pine. Moose-vehicle accidents have spurred construction of fences along roads, and these may interfere with moose migration between summer and winter ranges, or the road alone may be a barrier. If this happens and moose build up along roads, landowners may suffer economically. Therefore, this study investigated whether roads, fences or other factors influence the use of young pine stands by moose. Eighty stands along roads in northern Sweden were evaluated in which individually-browsed branches were counted on 9972 pines. Moose browsing was not significantly related to birch (Betula pendula Roth, B. pubescens Ehrh.) density, nor did it differ between pines (Pinus contorta Douglas or P. sylvestris L.). However, increased pine density, site productivity and proximity to a highway were associated with increased browsing. Further large-scale studies are needed to understand moose habitat selection and the effects of roads. 相似文献
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《Scandinavian Journal of Forest Research》2012,27(3):206-217
The root systems of 2-yr-old Picea glauca, Picea mariana and Pinus banksiana seedlings were submitted to various frost temperatures during an artificial frost to induce different levels of root damage. Frost-damaged and control seedlings were placed in a greenhouse under high and low soil moisture regimes. Seedling growth and physiology were evaluated periodically. Seedling survival was reduced when root damage reached levels of 60-80%. Root systems of all three species showed partial to total recovery by the end of the experiment. In general, root freezing damage caused reductions in seedling growth, with these reductions becoming less significant over time. Root damage had little to no effect on black spruce and jack pine seedling physiology, while white spruce CO 2 uptake decreased with increasing root damage. Shoot nitrogen content of all three species decreased slightly with increasing root damage. 相似文献
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《Scandinavian Journal of Forest Research》2012,27(1):53-61
This study investigated the stand structure in pine, spruce and deciduous forests in the border district of Finland and Russia. A total of 46 mature forest stands was selected as pairs, the members of each pair being as similar as possible with respect to their forest site type, age, moisture and topography. The stands were then compared between the two countries by means of basal areas and number of stems. The proportions of dominating tree species were 2-12% lower, and correspondingly the proportions of secondary tree species higher, in Russian forests. The density of the forest stock was also higher in each forest type in Russia. The forests in the two countries differed most radically in terms of the abundance of dead trees. The amount was two to four times higher in Russian deciduous and spruce forests, and in pine forests the difference was 10-fold. The stand structures indicated that Russian coniferous stands, in particular, were more heterogeneous than intensively managed pine and spruce stands in Finland. 相似文献
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《Scandinavian Journal of Forest Research》2012,27(1):15-27
The root collar diameter and the height:diameter ratio are of particular importance in container-grown seedlings where a high density in the containers may produce spindly seedlings. Temperature regimes and light quality are known to affect plant growth. The aim of this study was to identify responses in Picea abies (L.) Karst. seedlings grown with light providing different red:far-red ratios and under temperature regimes with alternating day (DT) and night temperature (NT) from negative (DT < NT) to positive (DT > NT) difference (DIF) between DT and NT. Experiments were conducted in controlled environment chambers and in a daylight phytotron. Only limited thermoperiodic responses appeared in P . abies seedlings with respect to seedling height and dry weight accumulation. The formation of terminal buds, however, was clearly delayed in seedlings grown at negative DIF. The results indicate a requirement for day extension light that is high in far-red, to prevent terminal bud formation under natural short-day conditions. An extended study should be conducted to clarify the minimum level of light intensity and the optimal light quality needed to prevent terminal bud formation under natural short-day conditions. 相似文献
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本文分析了CAD在设计中引起的正面和负面影响,并进行了系统的阐述,从而使设计者在应用中能够保持客观的态度。 相似文献
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《Scandinavian Journal of Forest Research》2012,27(5):472-479
Based on an enquiry, risk perception among non-industrial private forest owners is described in relation to climate change and forestry hazards. Of the respondents, 11% took action to remedy the effects of climate change. Out of a given set, hazards were ranked according to each respondent's experience of recent substantial financial loss to the estate and in relation to his or her willingness to make investments aimed at risk reduction. For each hazard, the respondent assessed the risk in four classes ranging from very high to negligible risk. Six hazards were considered most problematic in all three aspects: browsing damage, falling timber prices, damage by wind, spruce bark beetle, root rot and pine weevil. A majority of the respondents claimed to take action to reduce the risk associated with at least one hazard, while 35% did not know whether they did. Excluding climate change, the need for decision support was the largest in relation to damage by wind owing to a combination of perceived high risk and a high level of ignorance in relation to whether risk-reducing measures were taken. 相似文献
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Srisuda Thippayarugs Banyong Toomsan Patma Vityakon Viriya Limpinuntana Aran Patanothai Georg Cadisch 《Agroforestry Systems》2008,72(2):137-148
In situ produced plant residues contain a mixture of different plant components of varying quality. To assess synergistic
or antagonistic interactions occurring during the decomposition and mineralization of such mixtures, individual plant parts
(stems, leaves, leaf litter and roots) or the mixture of stems, leaves and leaf litter of the agroforestry species pigeonpea
(Cajanus cajan) or of crop residues of peanut (Arachis hypogaea) or of the weed hairy indigo (Indigofera hirsuta) were incubated in pots for 19 weeks. Periodically, remaining plant residues were sieved out (>2 mm), weighed and N content
as well as soil mineral N determined. Above- and below-ground residues of peanut decomposed fastest and showed the largest
N release in agreement with their high N concentration and low-acid detergent fibre (ADF) : N ratio. Hairy indigo was hypothesized
to be of lower quality than pigeonpea because of its high-polyphenol content. However, it decomposed faster than pigeonpea,
largely because of the higher N and lower lignin concentration of its components. Ranking of individual plant components for
N mineralization resulted in the following pattern, leaves > leaf litter > roots > stems. In mixtures of the different plant
components a similar species order in decomposition was obtained, e.g. peanut > hairy indigo > pigeonpea. The amount of N
released from the mixture was dominated by stem material that comprised 46–61% of the mixture. The interactions in mixtures
were relatively small for peanut (generally high-quality components) as well as for pigeonpea (low proportion of high-quality
components, i.e. N rich leaf material). However, a positive interaction occurred during later stages of N mineralization in
the mixture of hairy indigo as it had a significant proportion of N rich components and absence of highly reactive polyphenols.
Thus, for plants with low to intermediate chemical quality attributes, manipulating plant composition (e.g. by varying harvest
age, affecting stem and leaf proportions) will be important to obtain significant interactions during decomposition when its
components are mixed. 相似文献
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A. Rigueiro-Rodríguez M. R. Mosquera-Losada E. Gatica-Trabanini 《Agroforestry Systems》2000,48(3):245-256
The use of organic waste materials such as milk sewage as an organic fertilizer could have the dual advantages of organic-waste
disposal and reduced dependence on inorganic fertilizers. The effects of fertilization with (1) conventional mineral fertilization,
(2) milk sewage sludge at 40 kg N ha−1 target rate and (3) no fertilization on pasture production and tree growth were examined in an experiment consisting of two
pasture mixtures under a one-year-old Pinus radiata plantation with a density of 2500 trees ha−1. The two pasture mixtures were: (1) Dactylis glomerata L. var. saborto (25 kg ha−1) + Trifolium repens L. group Ladino (4 kg ha−1) + Trifolium pratense L. var. Marino (1 kg ha−1); (2) Lolium perenne L. var. Tove (25 kg ha−1) + Trifolium repens L. group Ladino (4 kg ha−1) + Trifolium pratense L. var. Marino (1 kg ha−1). The experiment began in the spring of 1995 using a randomized block design with three replicates in Castro Riberas de Lea
(Lugo, Galicia, north-western Spain). Plot size was 12 × 8 m2, with a 1 m buffer strip between plots. Two-year data showed that fertilization with either material had a positive effect
on pasture production, with no significant difference between the two fertilization treatments. Tree growth in the milk sewage
sludge plot was significantly higher than in the control plots. Inorganic fertilization increased pasture production, but
affected tree growth negatively. The results show that milk sewage sludge could be used as a fertilizer in silvo-pastoral
systems.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
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《Scandinavian Journal of Forest Research》2012,27(2):166-178
This study investigated the forest history, structural characteristics, the presence of fungal species suggested to indicate ecological continuity in old-growth forest, and the species composition of saproxylic beetles in 30 old forest ''woodland key habitats'' (WKHs), and compared them with production forest in the same age-class in south-eastern Norway. No statistically significant differences in forest characteristics, community of saproxylic beetles or number of red-listed beetles were found between the WKHs and the production forest, probably owing to a combination of profound long-term logging and a lack of will to delineate sufficiently large WKHs in the one area with significantly less forestry impact. The study indicates the advantage of including forest history information in WKH selection where such data exist, and the importance of restoring habitats in heavily exploited forest landscapes. 相似文献