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在全国林业发展一、二级区划体系的指导下,依据吉林省林业实际进行了三级区划。吉林省林业发展共划分为10个三级区划区域,即:吉科尔沁沙地防风固沙、湿地保护区,吉科尔沁沙地东缘防风固沙综合治理区,吉中西部农田防护、果树林区,吉中部农田防护、观赏植物区,吉中部水土保持林区,松花江中上游水源涵养、风景林区,长白山西部水源涵养、珍贵用材林区,长白山东北部水源涵养、大径木培育林区,长白山自然资源保护区,吉南部水土保持、一般用材林区。区划反映出不同区域林业生态产品、物质产品和生态文化产品的生产力差异性,实现了林业生态功能和生产力的区域落实,对各区域中长期林业发展具有指导意义。 相似文献
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分析了休闲旅游业的形象产业属性与价值,探讨了长白山科学文化资源与旅游形象定位,对长白山休闲旅游地旅游形象的传播进行了研究,指出了长白山休闲旅游景区的导游产品及导游服务要成为长白山旅游形象的传播者,以此树立长白山国际休闲旅游名山的科学形象、文化形象、诚信友善的形象,获得满意体验的旅游者是旅游景区形象的最忠实的传播者。 相似文献
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Based on a vast of field investigation on stamps inTilia broad-leaved Korean pine forest on northern slope of Changbai Mountain, age structure of some major species were studied
in this paper. The results showed that Korean pine population was composed of grouped patches with different ages. There were
not strict intervals among the dominated generations, and the curve of age structure often had two or more peaks. The distribution
of broad-leaved species in natural Korean pine forest was grouped or scattered, and age distribution was also uneven-aged.
There existed close relation between quality of broad-leaved species and Korean pine. So, it shaped multi-storied and uneven-aged
mixed forest. The model of age structure and growth demonstrated their passive correlation, but growth became slow when woods
had reached old age.
The study was funded by the Opened Research Station of Changbai Mountain Forest Ecosystems, the Chinese Academy of Sciences.
(Reponsible Editor: Chai Rulhai) 相似文献
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从长白山林区的森林火情(火灾)的实际出发,根据现地特征分析了人为蓄意纵火与普通人为火的差异,剖析了人为蓄意纵火的原因,提出了加强防控的应对之策。 相似文献
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Key message
Forty years after clear-cutting mixed old-growth forest (broadleaf/Korean pine) in the Changbai Mountain area (Northeast China), a mixed forest with natural broadleaf regeneration and larch plantation displayed larger microbial biomass and activity in the soil than either a naturally regenerated birch forest or a monospecific spruce plantation.Context
Clear-cutting with limited restoration effort was until the end of the twentieth century the norm for managing primary forests in Northeast China. Forest restoration plays an important role in the recovery of soil quality after clear-cutting, but the effects of different regeneration procedures on forest soil quality remain poorly known in Northeast China.Aims
We assessed the effects of three regeneration procedures, i.e., (i) naturally regenerated birch forest, (ii) spruce plantation, and (iii) naturally regenerated broadleaf species interspersed with planted larch on soil quality and microbial activity in the Changbai Mountain area. An old-growth mixed broadleaf/Korean pine forest was used as a reference.Methods
Physical and chemical properties and microbial biomass were recorded in the soil. Basal respiration and carbon mineralization were measured with a closed-jar alkali-absorption method.Results
Microbial biomass was smaller in the birch forest and spruce plantation than in the old-growth and the mixed broadleaf/larch forests. Moreover, microbial biomass, microbial quotient, and potentially mineralizable carbon were larger in the mixed broadleaf/larch than in the birch forest, while no difference was found between spruce plantation and birch forest for microbial biomass and microbial quotient. Basal respiration and metabolic quotient were larger in the birch forest as compared to the three other forest types, indicating a larger energy need for maintenance of the microbial community and lower microbial activity in the naturally regenerated birch forest.Conclusion
Mixed broadleaf/larch forest displayed a larger microbial biomass and higher substrate use efficiency of the soil microbial community than either naturally regenerated birch forest or spruce plantation. The combined natural and artificial regeneration procedure (mixed broadleaf-larch forest) seems better suited to restore soil quality after clear-cutting in the Changbai Mountain.8.
针对吉林长白山国家级自然保护区森林防火工作的特点,分析了森林火灾的特殊性,指出了森林防火工作存在的问题,并提出了相应对策与建议. 相似文献
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长白山国家级自然保护区生态地位及其保护对策 总被引：1，自引：0，他引：1
通过分析长白山国家级自然保护区生态地位及其生态环境现状,提出了该自然保护区的保护重点、生物资源恢复措施及其保护对策,从而进一步阐明了全面保护该区的自然资源和生态环境,是恢复森林生态系统,拯救濒临灭绝的生物物种,保护生物多样性,实现自然保护区可持续发展的关键所在。 相似文献
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基于森林生物量相容性模型长白山天然林生物量估测 总被引：4，自引：1，他引：3
利用中国第四次(1997年)二类森林调查数据,借助长白山天然林森林生物量相容性模型,以汪清天然林区为例,对阔叶林、针叶林及针阔混交林等不同森林群落进行森林生物量及其分量的估测,研究区森林生物量密度及碳密度估测值分别为110.06 t/hm2和51.73 t/hm2,碳库估测值为0.0119 Gt C.阔叶林生物量占总森林生物量的59%,在该研究区占主导地位。 相似文献
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《采育林经营技术规程》课题组 《吉林林业科技》2010,39(2):25-28,32
本文根据长白山顶级森林群落特点及林区现状,以现代林业理论为指导,以吉林省汪清林业局采育林模式为支撑,以林区大量森林调查数据为基础,提出了吉林省长白山采育林经营技术规程编制原则、内容及论据等,旨在用于指导吉林省长白山林区的森林经营。 相似文献
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基于28个20mx90m样地的调查数据,利用Lotka-Volterra模型,本文分析了长白山北坡阔叶红松(Pinuskoraiensis)林和云冷杉林(也叫暗针叶林)群落交错区优势树种之间的竞争及动态。结果显示:在自然条件下,群落将向两个方向分化,一是以云杉(PiceajezoensisandP.koraiensis)和冷杉(Abiesnephrolepis)为优势的群落,并在达到平衡时冷杉占绝对优势(相对优势度的77.1%):另一种是以红松或云冷杉和阔叶树占绝对优势的针阔混交林,并在达到平衡时,阔叶树在阔叶红松林中占相对优势度的50%,在云冷杉一阔叶林类型中占66%。同时,本研究说明:(1)阔叶红松林和云冷杉林都是长白山气候顶极群落:(2)交错区具有过渡性质:(3)森林群落的分化结果说明演替的方向受局部生境的影响。图1表3参24。 相似文献
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长白山森林的采伐更新方式 总被引：5，自引：0，他引：5
This paper discussed the characteristics of degenerated forest ecosystems in Changbai Mountain area,which include over-harvest natural forest,typical secondary forest,derived forest,and artificial forest.Forest cutting and regeneration methods that were historically used in the region were summarized.They lnclude diameter-class selective cutting,clearcutting,upbringing selective cutting,and selective sutting.We proposed cutting methods for the broad-leaved Korean pine mixed forest,spruce-fir forest,and larch forest.The measures for restoring the original mixed forest ecosystems were recommended. 相似文献
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IntroductionAgestructureoftrees,whichreflcctsrcge11eratio11processandvelocity,meansquantityoftreesdividingbyage.Broad-leavedKoreanpineforestwastl1etypicalzol1alvegetationofChangbaiMountaininNortheastO1ina,anditwastheprimarygymnospermconununitysurvivedaftertheQuatemaryGlacierPeriod.Alotofcommunityinf`)r-mationaccumulatCdinthestr-uctllreofforeststandsa11dgrowingprocessofindividualtrees.So,athoroughstUdyonagestructureanditsdistributiol1ofbroad-leavedKore-anpine.forestwouldprovidetl1eoretical… 相似文献
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YUDe-yong HAOZhan-qing XlONGZai-ping WANGDian-zhong YANGXiu-ying 《林业研究》2004,15(3):171-176
The utilization and changes of forest resources were studied in the Lishuihe Forest Bureau. Based on remote sensing images in 1985 and 1999, changes of major forest resources were analyzed by statistical and overlap method and classified quantitatively. The results showed that in recent 15 years, logging spots and man-made young forest changed violently, which was due to human activities. Different forest management manners and harvesting intensity played an important role in forest resources change. Dongsheng and Xilinhe tree farms were typical cases of different forest status and management for the Bureau, where forest succession was intervened by either human or natural disturbance. Dongsheng Tree Farm underwent a lighth arvest intensity and maintained a unit stock volume of 536.27 m^3. hm^-2, as much as that of broadleaf/Korean pine forest of Changbai Mountain Natural Reserve; Xilinhe Tree Farm underwent an intense harvest and was composed of secondary forests,where mature forests just had a small percentage and the unit stock volume was low. The study was useful to guide future forest management. What‘s more, problems found in the research were also analyzed and reasonable advice was given to the local forest management. 相似文献
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利用双指数模型预测中国不同森林带土壤有机碳矿化的动态变化 总被引：3，自引：0，他引：3
本文利用土壤培养实验和双指数模型(把土壤有机碳划分为活性碳和缓效性碳库)的方法,来分析确定长白山和祁连山的土壤有机碳的动态变化。分析和拟合土壤有机碳矿化释放的CO2的速率。结果表明:活性碳库占总有机碳的1.0%–8.5%,平均驻留时间的平均值为24天;缓效性碳库占总有机碳的91%–99%,平均驻留时间的平均值为179年。根据缓效性碳的大小和平均驻留时间可以得知,祁连山森林土壤的有机碳较长白山的难分解。通过分析影响森林土壤有机碳矿化的因素––土壤粘粒含量、海拔和温度,结果显示两种森林土壤有机碳的分解快慢与其温度正相关,并且长白山和祁连山的累积的土壤有机碳和缓效性碳的含量随土壤粘粒含量的增加而呈线性增加,其相关系数分别为0.7033和0.6575,充分表明温度和土壤粘粒含量对土壤有机碳的矿化有较大的影响。 相似文献
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长白山天然次生林的主要类型及其经营对策 总被引：3，自引：0，他引：3
长白山天然次生林可为以柞树、杨桦、水曲柳和胡桃揪为主的3种类型。其经营的主要措施是在保护的基础上,引进针叶树种。本文还对次生林的改造及抚育提出了建议。 相似文献