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通过调查摸清了永泰县野生药用植物资源的现状,确定全县有1 022种药用植物,分属193科626属,同时分析了野生药用植物资源品种类型、资源分布规律,并提出可持续发展利用意见。 相似文献
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广东省珠海市斗门区乡土树种资源调查 总被引:1,自引:0,他引:1
广东省珠海市斗门区共有乡土树种61科133属202种。其中裸子植物1科1属1种,被子植物60科132属201种;乔木157种、灌木45种。在这些乡土树种中,用材树种130种,药用植物113种、观赏植物65种,油脂植物35种、纤维植物30种、果树25种、鞣料植物23种、芳香植物13种、淀粉植物13种、蜜源植物5种。文章分析了这些乡土树种资源的的特点,并对资源保护和开发利用提出建议。 相似文献
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秦岭北坡户县木通科植物野果资源调查 总被引:1,自引:0,他引:1
本文报道了秦岭北坡户县木通科野果资源的种类(4属6种1亚种)、分布、生境、生长状况、资源数量和用途,对资源的利用进行了评估并切合实际地提出了合理的开发利用措施。 相似文献
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通过查阅资料、野外实地调查和采集标本鉴定相结合的方法,对甘肃木兰科植物资源进行调查。结果表明,甘肃共有木兰科植物2属10种,其中木兰属8种1亚种,鹅掌楸属1种。分析了甘肃木兰科植物资源的地理分布,分种进行了形态特征描述,编制了分种检索表,并对其在园林绿化中的应用和开发前景进行了探讨。 相似文献
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通过植物资源野外调查、标本采集和鉴定,对广东韶关国家森林公园药用植物资源进行了统
计分析。结果表明,广东韶关国家森林公园共有药用植物 507 种,隶属 122 科 343 属;其中蕨类药用植
物 18 科 21 属 30 种,裸子植物 1 科 1 属 1 种,被子植物 103 科 321 属 476 种;全草类、性凉类和清热类
分别在按用药部位、药性和功效分类中种数占比最高;整理了当地常见药用植物名录,并对该园野生药
用植物资源的保护和利用提出了建议,如建立野生药用植物数据库、建立小药园或开发相关旅游产品等。 相似文献
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韩建平 《内蒙古林业调查设计》2010,33(6):105-106,128
文章结合候马市香黾湖湿地公园的总体规划,对湿地植物资源进行了调查、采集、记录。共涉及8科68种,其中沉水植物3种,漂浮植物4种,浮叶植物1种,挺水植物10种,湿生植物50种。并对调查结果进行了分析,提出了保护、恢复、利用湿地资源的各种措施。 相似文献
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香椿是贵州乡土树种,普遍受到老百姓的喜爱,是优良的用材和生态树种.文章结合贵州山区特点,简要介绍了山地香椿人工造林生产实践经验并加以概括总结,以供借鉴. 相似文献
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冀北山区主要野生花卉繁育技术 总被引:1,自引:0,他引:1
在冀北山区主要野生花卉中,选择3种对繁育条件和技术要求相对较严格的花卉,对其繁育技术进行介绍。在有性繁殖方法中,以属于强迫休眠种子的稠李为例,介绍其播种繁殖技术;在无性繁殖方法中,选择红瑞木介绍其硬枝扦插技术;选择金花忍冬介绍其嫩枝扦插技术。 相似文献
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应用超效率DEA模型,选取能体现林木生物质能源发展内涵及基本特征的4个投入指标和1个产出指标,对伊春国有林区2008年16个林业局的生物质能资源发展相对有效性进行评价的结果表明:2008年伊春国有林区生物质能资源发展整体状况良好,生物质能资源投入产出效率较好,其中南岔林业局和朗乡林业局的生物质能资源发展效率相对较高,而友好林业局和新青林业局的生物质能资源发展效率相对较低。 相似文献
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Xingliang Liu Qinyan Ma Dongsheng Yang Zuoming Shi Yiming Su Shiqiang Zhou Shirong Liu Yupo Yang 《Frontiers of Forestry in China》2006,1(4):379-386
This study investigated root biomass and productivity in dominant populations in western Sichuan, China. A total of 4 plots
(Picea balfouriana plantation for 22 age in Maerkang, 9 trees, mean DBH of population for 10.4 cm and height for 10.5 m; Larix maxteriana plantation for 22 age in Wolong, 9 trees, mean DBH of population for 17.0 cm and height for 13.8 m; Abies fabri plantation for 35 age in Ebian, 18 trees, mean DBH of population for 14.1 cm and height for 11.9 m; Larix kaempferi plantation for 23 age in Miyaluo, 8 trees, mean DBH of population for 17.4 cm and height for 14.5 m; a 20 m×25 m plot located
on each of the 4 types in western Sichuan, China) were randomly selected and excavated to a depth of 60 cm for each of the
4 plantation types. To estimate the root biomass of an individual tree using D
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H, an exponential model was selected with the highest coefficient ranging from 0.94 to 0.99. The total root biomass per hm2 varied among plantation population types following the order: L. kaempferi (37.832 t/hm2) > A. fabri (24.907 t/hm2) > L. maxteriana (18.320 t/hm2) > P. balfouriana (15.982 t/hm2). The biomass fractions of a given root size class compared to the total root biomass differed among plantation population
types. For all 4 studied plantation types, the majority of the roots were distributed in the top 40 cm of soil, e.g., 97.88%
for P. balfouriana population, 96.78% for L. maxteriana, 95.65% for A. fabri, and 99.72 for L. kaempferi population. The root biomass fractions distributed in the top 20 cm of soil were 77.13% for P. balfouriana, 77.13% for L. maxteriana, 65.02% for A. fabri and 80.66% for L. kaempferi, respectively. The root allocation in the 0–20, 20–40, and 40–60 cm soil layers gave ratios of 34:12:1 for P. balfouriana, 24:6:1 for L. maxteriana, 15:7:1 for A. fabri, and 64:4:1 for L. kaempferi populations. The root biomass density of dominant plantation population was 10.782 t/(hm2·m) for P. balfouriana, 8.230 t/hm2·m) for L. maxteriana, 24.546 t/(hm2·m) for A. fabri, and 13.211 t/(hm2·m) for L. kaempferi population, respectively. The root biomass productivity was found to be 0.57 t/(hm2·year) for P. balfouriana, 0.83 t/(hm2·year) for L. maxteriana, 0.71 t/(hm2·year) for A. fabri and 1.64 t/(hm2·year) for L. kaempferi population, respectively.
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Translated from Acta Ecologica Sinica, 2006, 26(2): 542–551 [译自: 生态学报, 2006, 26(2): 542–551] 相似文献
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Kazuhiro Aruga Ayami Murakami Chikara Nakahata Reiko Yamaguchi Masashi Saito Kanae Kanetsuki 《林业研究》2013,24(2):345-356
We developed a model to estimate supply potentials and available amounts of timber and forest biomass resources from profitable sub-compartments of thinning and final felling operations. Economic balances were estimated while considering not only harvesting expenses but also reforestation expenses after final felling, which should be considered for sustainable forest management. Harvesting expenses were estimated based on two types of timber harvesting systems and three types of forest biomass harvesting systems in each sub-compartment. Then, the model was applied to Nasushiobara city of Tochigi prefecture, Japan. Reforestation expenses had large negative impacts on the financial balances of final felling operations. Few sub-compartments were profitable after considering reforestation expenses. Most profitable sub-compartments were those with mechanized operation systems and landing sales. These accounted for 17.19% of all sub-compartments, while only 5.75% of the sub-compartments were profitable based on their current operation systems and landing sales. Although the overall supply potentials of timber and forest biomass resources were 380,000 m3 and 210,000 Mg, respectively, and 15 times the planned harvest of coniferous tree volume of 25,000 m3year-1 and 50 times the annual demand for the woody gasification power generation of 4,000 Mg year-1 in Nasushiobara, available amounts of timber and forest biomass resources were only49,429 m3 and 33,333 Mg, which were 13.0% and 15.7% of supply potentials for landing sales with mechanized operation systems. 相似文献
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