Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features
前
人都是採用樣方方法對格氏栲種群數量的空間格局進行測定,而格局分佈有可能受樣方大小的影響,且分析過程中沒有涉及聚塊間密度差的問題,因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法,測定不同生境的格氏栲種群空間格局,分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義,紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明,格氏栲種群格局強度從高到低排列次序為:木姜子
蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷;格局紋理從粗到細的順序是:木荷=木姜子茜草樹格氏栲=冬青米櫧
蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此,格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切
Our main products are as follows : fireworks & firecracker ; gum rosin, gum turpentine, cassia bark, cassia oil, essential oil, synthetic camphor powder, logs, sawn timber, veneer board, wooden products, furniture ; articles plaited with bamboo and rattan, straw, willow ; bamboo poles for farming and gardening ; jute, bags plaited with plastics ; feed stuffs, peas and beans, mushrooms, manioc ; hardware, household utensils, kitchenware, candles, mosquito coils, festival ornaments, paper products ; flowers and plants, miniature landscape, pet birds, artificial flowers, artificial animals and plants ; watches and clocks, christmas decorations ; household electric appliance, products for daily - use, computer fittings ; shoes, light industrial products, arts and crafts, gifts, textiles, various kinds of traditional commodities and series of new products, etc
主營商品有:煙花炮竹;松香、松節油、桂皮、桂油、香料油、合成樟腦;原木、鋸材、膠合板、木材製品、傢具;竹、藤、草、柳編織品;農、園藝用竹桿;麻、塑編袋;飼料雜豆、各類干菌、薯類;五金器皿、家庭用品及櫥具產品;蠟燭、
蚊香、節日用品、紙製品;花卉盆景、觀賞鳥、
人造花、
人造動植物;鐘表、聖誕飾物;家電產品、日用品、電腦配件;鞋類、輕工產品、工藝品、禮品、紡織品等各類傳統商品及新產品系列。
As dormitory is often occupied with students, correspondingly flammables such as books, quilts, clothes ; mosquito curtains account much, once fire accident happens, it sprawls easily and rapidly ; moreover inflammables, explosives and chemicals stuffed in laboratory, if not taken carefully, tend to cause fire or explosion
因為學生宿舍
人員密度大,書籍、棉被、衣物、
蚊帳等易燃物品多,一旦失火,火勢蔓延速度快;實驗室易燃易爆和化學物品集中,稍有不慎,就會引起火災或爆炸。
Loses the abandoned plastic product like sticks has the pollutant, can become the hotbed which the mosquito musca and the bacterium survival, numerous plants, harms human body key kang. 3
遺棄的塑料製品如粘有污染物,會成為
蚊蠅和細菌生存、繁植的溫床,危害
人體鍵康。
Japanese encephalitis is a notifiable disease in hong kong. it is transmitted by culicine mosquitoes and the transmission reaches its dead end in humans
日本腦炎在香港是需要呈報的疾病,主要病媒是三帶喙庫蚊,人類感染日本腦炎后,這疾病便不能再傳播予第三者。