World Journal of Forestry
ISSN / EISSN : 2169-2432 / 2169-2440
Published by: Hans Publishers (10.12677)
Total articles ≅ 145
Latest articles in this journal
World Journal of Forestry, Volume 11, pp 1-8; https://doi.org/10.12677/wjf.2022.111001
# 为了了解新选育出的4个杂交沙棘无性系果实油脂含量，于2016-2018年对黑龙江、辽宁、甘肃、青海、新疆5地的杂交沙棘果实取样后，采用索氏抽提法分析了干全果、干果肉和干籽3个油脂含量。杂交沙棘干全果油脂含量平均值为15.62%，其中以“杂雌优54号”的含量最小，仅13.16%，“杂雌优01号”最大，达21.24%。干全果中，干果肉油脂含量为17.59% ± 5.81%，较干籽的13.99% ± 6.63%大了3.60个百分点。在5个试验地，杂交沙棘干全果油脂含量以青海大通最高，达18.66% ± 3.86%，新疆额敏最低，只有13.35% ± 6.63%。从年度间来看，杂交沙棘干全果油脂含量，2016年为9.50% ± 2.41%，2017年为17.70% ± 4.64，2018年为11.36% ± 2.27%，显现出“小–大–小”的明显起伏现象。杂交沙棘的油脂含量虽然较引进沙棘低了1.49个百分点，但已属很高，加之适应性强，应在我国“三北”和西南等地建立以油用为主要目标的工业原料林来综合开发利用。In order to learn the oil content of the fruits of four newly selected hybrid seabuckthorn clones, after sampling the fruits of hybrid seabuckthorn in Heilongjiang, Liaoning, Gansu, Qinghai and Xin-jiang from 2016 to 2018, Soxhlet extraction method was used to analyze the oil content of dry whole fruit, dry pulp and dry seed. The average oil content of dry whole fruit of hybrid seabuckthorn was 15.62%, of which “zaciyou 54” was the smallest, only 13.16%, and “zaciyou 01” was the largest, up to 21.24%. In the dried whole fruit, the oil content of dried pulp was 17.59% ± 5.81%, which was 3.60 percentage points higher than 13.99% ± 6.63% of dry seeds. In the five experimental locali-ties, the oil content of dry whole fruit of hybrid seabuckthorn was the highest in Datong, Qinghai, up to 18.66% ± 3.86%, and the lowest in Emin, Xinjiang, only 13.35% ± 6.63%. For the test three years, the oil content of dried whole fruit of hybrid seabuckthorn was 9.50% ± 2.41% in 2016, 17.70% ± 4.64% in 2017 and 11.36% ± 2.27% in 2018, showing an obvious fluctuation of “small-large-small”. Although the oil content of hybrid seabuckthorn was 1.49% lower than that of introduced seabuckthorn, it was really high. In addition, as hybrid seabuckthorn had strong adaptability, industrial raw material forests with oil as the main goal should be established in the “Three North” and southwest of China for comprehensive development and utilization.
World Journal of Forestry, Volume 11, pp 21-26; https://doi.org/10.12677/wjf.2022.111003
# 2019年5月25日至2021年5月8日在甘肃黑河湿地拍摄到麦鸡清晰照片，经查证确认为鸻形目Charadriiformes鸻科Charadriidae麦鸡属的灰头麦鸡Vanellus cinereus，并确认为甘肃黑河湿地鸟类分布新记录种。对影响灰头麦鸡迁徙的环境因素进行分析，认为地形、气候、海拔和经纬度等因素不是灰头麦鸡迁徙的主要影响因素；选择迁徙至石羊河、黑河中下游湿地进行繁殖，证明了该区域气候变化和生态环境持续向好。 Clear picture of lapwings were taken at the Heihe wetland in Gansu Province on 25 May 2019 to 8 May 2021, and confirmed to be those of Vanellus cinereus, Grey-headed Lapwing of the Charadriiformes order, Charadriidae family, it is confirmed as a new bird record in Heihe wetland of Gansu Province. Based on the analysis of the environmental factors affecting the Grey-headed Lapwing migration, and it turns out that the topography, climate, elevation, longitude and latitude are not the main factors affecting the Grey-headed Lapwing migration. The bird migrates to the Lower and middle reaches of the Shiyang River and Heihe River to breed, which is evidence that the climate change and ecological environment in the region continue to improve.
World Journal of Forestry, Volume 11, pp 9-20; https://doi.org/10.12677/wjf.2022.111002
# 植物多样性是维持生态系统平衡的重要条件，也是人类生存的基础保障。黄檗是东北天然红松林中重要的伴生树种，因其经济价值较高，导致野外资源破坏严重。本文按照纬度梯度选取东北天然林中黄檗资源分布的9个地点：黑河、鹤岗、虎林、苇河、安图、大兴沟、露水河、凤城和新宾。对9个研究地点进行样地设置，对样地中的植物进行调查，记录每个样地各种植物名称和株数，计算Margalef物种丰富度指数(R)、Simpson指数(D)、Shannon-Wiener指数(H)及Pielou均匀度指数(E)。结果显示，9块样地黄檗群落共有植物312种，分别隶属于68科183属。物种丰富度最高的为露水河，最低的为黑河；Simpson指数和Shannon-Wiener指数最高的为苇河，最低的为虎林；Pielou指数最高的为苇河，最低的为新宾。不同生长型植物的物种丰富度指数(R)、Simpson指数(D)和Shannon-Wiener指数(H)为：草本层 > 灌木层 > 乔木层，Pielou均匀度指数(E)为：乔木层 > 灌木层 > 草本层。其中，苇河、安图、凤城和新宾样地内植物群落结构较相似。本研究结果对东北地区黄檗资源野外培育及物种配置具有参考价值。 Plant diversity is an important condition for maintaining the balance of the ecosystem and the basic guarantee for human survival. Phellodendron amurense is an important associated tree species in the natural Korean pine forest in Northeast China. Because of its high economic value, it has caused serious damage to the wild resources. According to the latitude gradient, this paper selects 9 locations where P. amurense resource is distributed in the natural forests of Northeast China: Heihe, Hegang, Hulin, Weihe, Antu, Daxinggou, Lushuihe, Fengcheng and Xinbin. The sample plots were set up in 9 research sites, investigate the plants in the sample plots, record the names and plant numbers of various plants in each plot, and calculate the Margalef species richness index (R), Simpson index (D), Shannon-Wiener Index (H) and Pielou evenness index (E). The results showed that there were 312 species of plants in the P. amurense community in 9 plots, belonging to 68 families and 183 genera. The highest species richness is Lushui River and the lowest is Heihe; the highest Simp-son index and Shannon-Wiener index is Weihe, and the lowest is Hulin; the highest Pielou index is Weihe, and the lowest is Xinbin. The species richness index (R), Simpson index (D) and Shan-non-Wiener index (H) of different growth types is: herb layer > shrub layer > arbor layer, Pielou evenness index (E) is: tree layer > shrub layer > herb layer. Among them, the structures of plant communities in Weihe, Antu, Fengcheng and Xinbin are similar. The results of this study have reference value for the field cultivation and species allocation of P. amurense resources in Northeast China.
World Journal of Forestry, Volume 10, pp 148-153; https://doi.org/10.12677/wjf.2021.104017
林地面积数量是对森林火灾案件、违法征占用林地案件、改变林地用途案件等涉林案件定性、定罪、处罚的重要依据，根据现场考察、模拟实验、实地检验、理论分析等实验方法，结合实际司法办案经验，分析几种软件在测量涉林案件林地面积计算中的准确度、用时长短、难易度。测得数据后比较不同软件测算面积时的差异性及测算效率。最终结合实际应用，确认几种软件在测量涉林案件林地面积计算中的优缺点。 The number of Woodland area is the case of forest fires, illegally occupying Woodland changing the use of Woodland and other cases concerning forestry foundation which are based on the field investigation, simulation experiment, field inspection, theoretical analysis and other experimental methods, combined with the actual judicial case experience, analysis of several kinds of software in cases concerning forestry forest land area computation accuracy of the measurement, time length, difficulty level. After the measured data, the difference and efficiency of different software in area measurement were compared. Finally, the advantages and disadvantages of several softwares in the calculation of forestland area in forest-related cases are confirmed.
World Journal of Forestry, Volume 10, pp 185-196; https://doi.org/10.12677/wjf.2021.104021
双中杂交沙棘是以中亚沙棘为母本、中国沙棘为父本获得的杂种优株F1代，为了评定其果实主要风味物质含量水平，应用气质联用仪GCMS-QP2010、气相色谱仪GC-2010等，对10个优株分别测定了鲜果的呈香和呈味物质含量，发现呈香物质共10类170个，主要为酯类物质，有103个，占60.6%，其含量占到总呈香物质含量的90%以上；呈味物质中的糖类主要为葡萄糖、果糖和蔗糖，酸类主要为奎宁酸和苹果酸，糖酸比值很大，最低也在12以上，酚类物质也有一定含量。综合各指标来看，10个双中杂雌沙棘优株中，风味较好的主要为“双中杂雌沙棘01号”、“双中杂雌沙棘08号”、“双中杂雌沙棘50号”，相信这些优株会为今后以鲜食为主要用途的沙棘育种工作提供很好的物质材料。In order to estimate the main flavor substances contents of the fruits from the so-called Hippophae turkestanica-sinensis hybrid F1 generation, H. rhamnoides ssp. turkestanica as the female parent, Hippophae r. ssp. sinensis as the male parent, the fruits from 10 superior plants were collected to analyze the contents of aromatic substance and taste substance, with the aid of the instruments like GCMS-QP2010 and GC-2010. It showed that there were 170 kinds of aromatic substances belong to 10 categories in the fruits, among them esters contained 103 kinds (60.6%) and had more than 90% amounts of the total esters. The taste substance contained three kinds of sugars-glucose, fructose and sucrose, two kinds of acids-Quinic acid and malic acid, and a few polyphenol. The sugar acid ratios of the fruits were big, and the least was above 12. According to comprehensive evaluations of above-mentioned various factors, the good F1 generations with best flavor were “Shuang-zhongzacishaji 01” “Shuangzhongzacishaji 08” “Shuangzhongzacishaji 50”, which would be good materials for seabuckthorn breeding of fresh food purpose.
World Journal of Forestry, Volume 10, pp 113-125; https://doi.org/10.12677/wjf.2021.103014
在2016年~2017年6月~10月期间对升金湖湿地昆虫多样性进行调查，在不同月份对该湿地的昆虫种类及数量进行了统计，对采集的物种进行编目，并采用Shannon-Wiener物种多样性指数、Pielou均匀度指数、Simpson优势度指数、Margalef丰富度指数对其群落多样性进行分析。结果表明：升金湖湿地共有昆虫种类367种，分别隶属于15目112科。其中优势类群为半翅目、直翅目和鞘翅目，其所占比例分别为34.77%、19.59%、19.09%。不同月份多样性指数高低顺序为6月 > 7月 > 8月 > 9月 > 10月。多样性、均匀度及丰富度的相关分析说明：升金湖湿地昆虫多样性指数与丰富度、均匀度指数呈正相关，表明该湿地昆虫群落较为稳定。通过Jaccard相似性系数分析，升金湖湿地昆虫群落与邻近的菜子湖呈现较显著的差异，推测因地形差异、植物类群差异和气候条件等因素影响所致。 The insect diversity of Shengjin Lake wetland was investigated from June to October 2016~2017. The species and quantity of insects in the wetland were counted in different months. The collected species were catalogued. The Shannon-Wiener species diversity index, Pielou evenness index, Simpson dominance index and Margalef abundance were used to analyze community diversity. The results showed that there were 367 species of insects belonging to 15 orders and 112 families in Jinhu wetland. The dominant groups were Hemiptera, Orthoptera and Coleoptera, accounting for 34.77%, 19.59% and 19.09% respectively. The order of diversity index in different months is June > July > August > September > October. Correlation analysis of diversity, evenness and richness showed that insect diversity index was positively correlated with richness and evenness index, indicating that insect community in Shengjin Lake wetland was relatively stable. Jaccard similarity coefficient analysis showed that the insect community in Shengjin Lake wetland was significantly different from that in the adjacent Caizi Lake. It was speculated that the insect community in Shengjin Lake wetland was influenced by topographic differences, plant species differences and climatic conditions.
World Journal of Forestry, Volume 10, pp 21-32; https://doi.org/10.12677/wjf.2021.101004
在实地考察的基础上，编制河南省嵩县低等短角亚目名录。报道了河南双翅目1新记录科，臭虻科(Coenomyiidae)；1新记录属，臭虻属(Coenomyia)；以及1新记录种，黄斑臭虻(Coenomyia maculata Yang & Nagatomi, 1994)。凭证标本存放于中国农业大学昆虫学系。截至目前，嵩县记载的低等短角亚目昆虫共有7科37属70种。On the basis of field survey, a checklist of lower Brachycera from Songxian County, Henan Province, is compiled. The dipterous family Coenomyiidae, the genus Coenomyia, and the species Coenomyia maculata Yang & Nagatomi, 1994, are newly reported from Henan. The voucher specimens are deposited in Department of Entomology, China Agricultural University, Beijing, China. Up to now, there are 7 families, 37 genera and 70 species of lower brachyceran insects recorded from Songxian County.
World Journal of Forestry, Volume 10, pp 71-81; https://doi.org/10.12677/wjf.2021.102010
该文应用无人机航拍摄影技术，采用美景度评判法(Scenic Beauty Estimation Method，简称SBE法)对苏州大学的秋季植物景观进行美学评价，并选取5个景观要素对秋季植物景观美景度值影响的显著性进行分析，以期为苏州大学秋季植物景观建设提出优化策略。结果表明，苏州大学秋季植物景观质量整体良好，对美景度值影响贡献大小的要素依次为与周边环境的协调性、校园文化、植物群落结构和空间层次感、植物资源丰富度、植物色彩丰富度及和谐度，以此对秋季植物景观提出了优化建议。 With the application of UAV aerial photography technology, the aesthetic evaluation of plant land-scape in autumn of Soochow University was carried out with scenic beauty estimation method, and five landscape elements were selected to analyze the significance of the influence on the beauty value of plant landscape in autumn, so as to propose the optimization strategy for the construction of plant landscape in autumn of Soochow University.
World Journal of Forestry, Volume 10, pp 43-47; https://doi.org/10.12677/wjf.2021.102006
该文以花桥板栗坚果为研究对象，开展常温贮藏、家用冰箱冷藏、家用冰箱冷冻贮藏试验。结果表明：低温冷藏是最好的贮藏方法，贮藏时间达到2个月以上，能保持花桥板栗坚果固有风味。 Huaqiao chestnut nut as the research object, carry out room temperature storage, low temperature storage and freezer storage experiment (domestic refrigerator). The results show that the low temperature storage is the best storage method, storage time can reach above 2 months, can keep the inherent flavor of Huaqiao chestnut nuts.
World Journal of Forestry, Volume 10, pp 48-59; https://doi.org/10.12677/wjf.2021.102007
本文介绍了我国审定的无刺红花椒2种、青花椒1种，引进日本驯化并审定的红花椒5种；全国各地培育和发掘的无刺红花椒品系8个，无刺青花椒品系6个。这些无刺花椒品种和品系，将是我国有刺花椒无刺化改造的基础，也是无刺花椒新品种培育的种质资源。 This article introduced two species of thornless red prickly ash and one type of green prickly ash that were accredited in China and five species of red prickly ash that were domesticated and ac-credited in Japan. Eight thornless red prickly ash strains and six thornless green prickly ash strains were excavated and cultivated throughout our country. These varieties and strains of thornless prickly ash will be the solid basis for the thornless transformation of prickly ash in China and the germplasm resources for the cultivation of new varieties of thornless prickly ash.