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1.
指出了林木权属登记发证工作存在林木权属不清，林木所有人权益得不到保障，社会化服务体系建设滞后，林木权证管理机制不明确，目标任务不明确等问题，提出了提高认识，明确总体目标，统一思想，落实任务强化保障措施，稳步开展登记发证工作等工作措施。为切实加强我县林木权属登记管理工作，确保林木权属登记发证工作顺利开展提供参考。 相似文献
2.
今年春季，河北省廊坊市香河县林业局加大造林绿化工作力度，组建了3个专门督导组，不分时段地对造林现场进行督导检查。各乡镇根据本地实际，积极行动，制订详实的适合本乡镇的造林实施方案，明确工作重点，明确责任人，将工作细化，分步实施，使造林工作顺利进行。 相似文献
3.
新时期高校德育目标及其实施西北林学院张柏涛，杜德鱼德育是高等教育的重要组成部分，要搞好德育工作，首先必须规定明确的德育目标，因为它是德育工作的出发点和归宿。没有明确的德育目标，德育工作就会无的放矢，造成教育实践的盲目性，进而影响人才培养的质量。高校德... 相似文献
4.
北京市第十一届人民代表大会常务委员会第十三次会议于1999年9月16日通过了《北京市森林资源保护管理条例》，自1999年11月1日起实施。这标志着首都林业又进入一个崭新的发展阶段，为依法治林、依法兴林提供了有力的法律保障。《条例》内容可以概括为四个明确：一是明确了各级林业行政主管部门森林植物检疫的职责和任务；二是明确了森林病虫害预测预报是森防机构的基本职能；三是明确了“谁经营、谁防治”的防治责任；四是明确了森防经费来源。森林植物检疫是森防工作的重要基础环节，是防患于未然的有力措施。通过实施检疫，既可以防止危险… 相似文献
5.
按照《中共中央、国务院关于加快林业发展的决定》要求，要进一步完善林业产权制度，明晰产权关系，明确造林主体，加快林权制度改革步伐，坚持全社会办林业；通过制定和完善相关的政策措施，加快平原人工林的培育，促进森林资源的科学合理利用；在明确权属的基础上，加快推进森林、林木、林地使 相似文献
6.
《绿色中国(A版)》2014,(13):6-6
《大气污染防治行动计划实施情况考核办法（试行）》明确了实行《大气十条》的责任主体与考核对象，明确了考核内容、考核方式、考核程序、奖惩措施等，标志着我国最严格大气环境管理责任与考核制度的正式确立。 相似文献
7.
国有平江县芦头林场自1956年建场以来，连续础年无森林火灾，先后18次受到省、市以及湘粤赣护林联防区的表彰奖励，连年被评为全县森林防火先进单位。该场是岳阳市最大的国有林场，有山林面积6＆hi7公顷。护林防火一直被场领导摆在议事日程。坚持书记、扬长亲自抓，明确一名副场长专抓。实行目标管理，明确岗位责任，场与工区、工区与班组、班组与个人层层签订责任状，明确目标，严格考核，奖罚兑现。健全制度，场里制定了“十不准”、“八不烧”、“三定”、“三包”等一整套防火制度，严格火源管理，场里在进山要道口设立火种检查站，控制… 相似文献
8.
南涧县在集体林权制度改革中，始终按照“对群众负责，对历史责责”的要求开展工作，力争通过改革实现南涧林业叉快又好地发展。经过半年多的努力，基本做到了山林能分包到户的就分包到户，不能分包到户的按份额明确到户，流转的山林收益明确到户。目前，林改工作已经顺利完成，取得了阶段性的成果。南涧县在林改工作中做到了“六到位”。 相似文献
9.
隆林县的“东大门”在扁牙、委乐、沙梨乡。它的绿化是隆林县为了改善该县东部乡镇生态环境、促进群众早日脱贫致富，树立该县良好的生态形象而开展的重点生态建设工程。为了抓好“东大门”绿化，该县在实施绿色工程、绿色通道和绿色长廊建设、珠江防护林工程、退耕还林工程等重点生态建设工程时都向东部乡镇的扁牙、委乐、沙梨等乡倾斜，把“东大门”绿化摆上各级党委政府的重要议事日程，做到三个到位和两个明确，即种苗供应到位、技术指导到位、检查督促到位，责任明确、奖惩明确。一是实行造林绿化目标责任制，由林业部门将造林绿化任务… 相似文献
10.
龙牙槌木为五加科落叶小乔木，属药食两用植物，其嫩芽为可食部位，是山野菜中的极品，同时也是宽甸地区山野菜出口的重要品种之一。对龙牙槌木在林木、荒坡栽植技术进行论述，确定每667m2栽植500～800株，明确了管理技术措施。确定了大田栽培下的密度为666.7m2栽植700株为宜；明确了种根繁殖方法，大田选地整地，栽植及管理模式． 相似文献
11.
《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
12.
《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
13.
《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
14.
《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
15.
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
16.
《Scandinavian Journal of Forest Research》2012,27(2):131-138
The effects of soil scarification (mounding), slash removal and clear-cut age on the natural regeneration in clear-cuts was evaluated using data from four sites in southern Sweden. The treatments were carried out during a good seed and establishment year for birch ( Betula pubescens Ehrh. and B. pendula Roth). Scarification had the strongest positive effect on the density of naturally regenerated seedlings, especially in birch, but also in pine ( Pinus sylvestris L.) and spruce [ Picea abies (L.) Karst]. Slash removal had a positive effect on birch density. No statistically significant effect of clear-cut age was found. In addition, no statistically significant interactions between clear-cut age and scarification or slash removal were found. The ingrowth of field vegetation was the fastest in areas that were not scarified, less rapid in areas scarified on old clear-cuts, and the slowest after scarification in fresh clear-cuts. In conclusion, it may be possible to control the density of birch during a good establishment year for birch. If birch is desired, the best combination of treatments is to remove the slash and scarify; otherwise, these treatments should be avoided. 相似文献
17.
18.
《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
19.
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
20.
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