生長(zhǎng)于海拔1300米的疏林下。
根狀莖細(xì)。
稈高20-60厘米,纖細(xì),三棱形,上部粗糙,基部具淡褐色無葉片的葉鞘。
葉短于稈,寬1.5-2毫米,平張,粗糙。苞片鱗片狀。
小穗6-10個(gè),卵形或長(zhǎng)橢圓狀卵形,長(zhǎng)5-7毫米,雄雌順序或混有雌雄順序,罕有為雌性。
穗狀花序長(zhǎng)橢圓形或長(zhǎng)橢圓狀卵形,長(zhǎng)1.8-2.7厘米。雌花鱗片長(zhǎng)橢圓狀卵形,頂端急尖,淡黃褐色,邊緣為白色膜質(zhì)。
果囊長(zhǎng)于鱗片,卵狀披針形,平凸?fàn)?,長(zhǎng) (5) 5.5-6.5毫米,薄革質(zhì),淡黃褐色,上部微帶綠色,邊緣上部1/3處有具齒的狹翅,背面具脈5-10條,上部有稀疏的粗毛,或具少數(shù)小疣,腹面具脈3-5條,上部有稀疏的小疣和稀疏的粗毛,基部近圓形,無柄,先端漸狹成圓錐狀長(zhǎng)喙,喙口具明顯2齒;柱頭2個(gè)。
果期6-7月。
(資料來源:中國(guó)植物物種信息)
主要產(chǎn)自吉林。
為喜光樹種。淺根系,抗風(fēng)力差。對(duì)氣候的適應(yīng)性強(qiáng),在年平均氣溫2.5℃~12℃,年降水量500~1400mm的氣候條件下都能生長(zhǎng)。有一定的耐寒性,但在冬季低溫條件下,有梢部?jī)隹莠F(xiàn)象發(fā)生。在氣候涼爽、空氣...
根據(jù)多年的紅松人工林科學(xué)試驗(yàn)結(jié)果,認(rèn)為紅松是一個(gè)長(zhǎng)伐期速生的造林樹種。 與落葉松相比,紅松在造林后10年前生長(zhǎng)較慢,林齡10年時(shí),樹高可達(dá)4.2米,胸徑2.7厘米左右,僅為落葉松的50%。到林齡2...
喜冷涼的氣候。
格式:pdf
大?。?span id="ig2gmfi" class="single-tag-height">76KB
頁數(shù): 2頁
評(píng)分: 4.7
通過實(shí)驗(yàn)使用幾種配方不同的復(fù)合保水劑,對(duì)比苗木生長(zhǎng)量的調(diào)查,發(fā)現(xiàn)羧甲基纖維素鈉+秸桿粉+氨基酸的復(fù)合保水劑可明顯提高苗木的生長(zhǎng)量。
急尖薹草組Sect. Acutae Fries
白鱗薹草組Sect. Albae Aschers. et Graebner.
異囊薹草組Sect. Anomalae Carey
黑穗薹草組Sect. Atratae Kunth
細(xì)稈薹草組Sect. Capillares Aschers. et Graebn.
頭穗薹草組Sect. Capituligerae Kukenth
薹草組Sect. Carex
密花薹草組Sect. Confertiflorae Franch.
隱穗薹草組Sect. Cryptostachyae Franch.
瘦果薹草組Sect. Debiles Carey
美穗薹草組Sect. Decorae (Kukenth.) Ohwi
指狀薹草組Sect. Digitatae Fries
異株薹草組Sect. Dioicae (Tuckerm.) Pax
溪水薹草組Sect. Forficulae Franch. ex Raymond
凍原薹草組Sect. Frigidae Fries ex Kukenth.
米柱薹草組Sect. Glaucaeformes Ohwi
細(xì)柄薹草組Sect. Gracilis Tuckerm.
短喙薹草組Sect. Grallatoriae Kukenth.
膜囊薹草組Sect. Hymenochlaenae Drejer
匏囊薹草組Sect. Lageniformes (Ohwi) Nelmes
黃囊薹草組Sect. Lamprochlaenae Drejer
疏花薹草組Sect. Laxiflorae Kunth
濕生薹草組Sect. Limosae Tuckerm.
灰帽薹草組Sect. Mitratae Kukenth.
柔果薹草組Sect. Molliculae Ohwi
玉簪薹草組Sect. Montanae Fries
硬毛果薹草組Sect. Occlusae C. B. Clarke
尖苞薹草組Sect. Orthocerates Koch
沼生薹草組Sect. Paludosae Fries
少花薹草組Sect. Paniceae Tuckerm.
脹囊薹草組Sect. Physocarpae Drejer
帚狀薹草組Sect. Praelongae (Kukenth.) Nelmes
似莎薹草組Sect. Pseudo-cypereae Tuckerm.
根穗薹草組Sect. Radicales (Kukenth.) Nelmes
單穗薹草組Sect. Rarae C. B. Clarke
根足薹草組Sect. Rhizopodae Ohwi
菱形果薹草組Sect. Rhomboidales Kukenth.
石薹草組Sect. Rupestres Tuckerm.
離穗薹草組Sect. Secalinae O. F. Lang
寬葉薹草組Sect. Siderostictae Franch.
隱果薹草組Sect. Temneris (Rafin.) V. Krecz.
糙果薹草組Sect. Trachychlaenae Drejer
圖們薹草組Sect. Tuminenses Y. L. Chang et Y. L. Yang
漿果薹草組Sect. Baccantes (T. Koyama) P. C. Li
菰葉薹草組Sect. Euprepes Nelmes et Airy-Shaw
花葶薹草組Sect. Hemiscaposae C. B. Clarke
寶興薹草組Sect. Hypolytroides Nelmes
印度薹草組Sect. Indicae Tuckerm.
日本薹草組Sect. Japonicae Kukenth.
秀麗薹草組Sect. Mundae Kukenth.
多穗薹草組Sect. Polystachyae Tuckerm.
粗糙薹草組Sect. Scabrellae Kukenth.
蘗枝薹草組Sect. Surculosae Raymond
漿果薹草組Sect. Baccantes (T. Koyama) P. C. Li
菰葉薹草組Sect. Euprepes Nelmes et Airy-Shaw
花葶薹草組Sect. Hemiscaposae C. B. Clarke
寶興薹草組Sect. Hypolytroides Nelmes
印度薹草組Sect. Indicae Tuckerm.
日本薹草組Sect. Japonicae Kukenth.
秀麗薹草組Sect. Mundae Kukenth.
多穗薹草組Sect. Polystachyae Tuckerm.
粗糙薹草組Sect. Scabrellae Kukenth.
蘗枝薹草組Sect. Surculosae Raymond