1)plantation[英][plɑ:n'te??n][美][pl?n'te??n]人工林
1.Wood physical-mechanical properties of Taiwania flousiana compared to Cunninghamia lanceolata for plantation development;不同樹齡禿杉與杉木人工林木材物理力學性質的比較
2.Shrinkage of smallwood of Cryptomeria japonica and Cunninghamia lanceolata plantation;人工林日本柳杉和杉木小徑材干縮性的研究
3.Mechanical properties of juvenile and mature wood of Pinus densiflora from plantations;人工林赤松幼齡材與成熟材力學性質的比較
英文短句/例句
1.Studying on Agro-forestry Modes of Young Eucalyptus Plantation;桉樹人工林中幼林林農間作模式研究
2.Carbon Storage and Allocation in 26-Year-Old Phobe bournei and Cunninghamia lanceolata Plantations26年生楠木人工林和杉木人工林C庫及分配
3.Study on the Forest 3D Visualization of Mongolian Scots Pine in Plantation;樟子松人工林林分三維可視化的研究
4.Model Basis for Study on Growth Process of Plantation Stands人工林林分生長過程研究的模型基礎
5.Succession Trend of Larch Plantation Communities in Forest Regions of Northeast China東北林區落葉松人工林群落演替趨勢
6.Comparative Study for Undergrowth Vegetation Biomass of Eucalyptus Plantations and Natural Forest;桉樹人工林與天然林林下植被生物量比較研究
7.Cost-effectiveness Analysis of Plantation and Natural Forests--A Case Study of Artificial Larch and Natural-fir in Jingouling Forest Farm人工林與天然林經濟效益分析——以金溝嶺林場人工落葉松林與天然云冷杉林為例
8.Evaluation of Forest Carbon-sink--A Case Study on Artificial Plantation of the Three-north Shelterbelt Forest System Program in China;森林碳匯價值評價——三北防護林體系工程人工林案例
9.STUDY ON THE WHOLE FOREST STAND OF ARTIFICIAL JAPANESE LARCH FOREST日本落葉松人工林生長預測的全林分模型研究
10.Study on Stand Structure of Larix Kaempferi Artificial Forest and Its Increment Prediction;日本落葉松人工林林分結構與生長量預測研究
11.The Soil Available Carbon in a Quercus Variabilis Forest and Pinus Taeda Plantation in Xiashu Forest Experimental Site, Southeastern China;次生櫟林與火炬松人工林土壤有效碳研究
12.The Growth Models of Slash Pine Plantation and Stand Visualization Simulation;濕地松人工林生長模型及林分可視化模擬
13.Soil Respiration of Temperate Secondary Forest and Larix Gmelinii Plantation in Northeastern China;東北溫帶次生林與落葉松人工林的土壤呼吸
14.China's artificial gardens are of supernatural workmanship.中國人工園林，巧奪天工。
15.Drinker apparatus德林克氏人工呼吸器
16.The gardener dug out the weeds園林工人鏟除了雜草。
17.Status of Artificial Timber Forest Constriction and Its Future Development;用材林人工造林的現狀及今后的發展
18.Study on Stand Structure and Growth Law of Near-mature Phoebe bourmei Plantation楠木人工近熟林林分結構與生長規律
相關短句/例句
Artificial forest人工林
1.The technology current situation, problem and tendency on the development of extensive process and high-effective utilization of the artificial forest;國內外人工林深加工技術現狀、問題及發展趨勢
2.Soil fertility quality of artificial forest in the Hilly-gully region of Loess Plateau;黃土丘陵區人工林地土壤肥力質量
3.Summer bird diversity in three different artificial forest in suburbs of Nanning;南寧市郊三種人工林型夏季鳥類多樣性初步分析
3)Plantations[英][pl?n'tei??n][美][pl?n'te??n]人工林
1.Fractal Analysis on Radial Variation of Earlywood from Larix gmelinii Plantations;人工林落葉松木材早材寬度徑向變異的分形分析
2.Site Classification and Quality Appraisal of Picea koraiensis Plantations;紅皮云杉人工林立地分類與質量評價
3.Model for forecasting the electric field intensity of UHF wireless frequency band in plantations.;人工林UHF頻段電波傳播場強預測模型
4)planted forest人工林
1.Infiltrability of muddy water and universal model for both muddy water and tap water in planted forest site;人工林地渾水入滲性能與通用入滲模型
2.Soil fertility evaluation of planted forest land on the hilly-gullied Loess Plateau;黃土丘陵區人工林地土壤肥力評價
3.Quantity characteristics of plant community under tree-layers of planted forests in semi-arid windy area of north Shaanxi Province;陜北半干旱風沙區人工林下植物群落數量特征研究
5)plantation forest人工林
1.Water and soil conservation function of typical plantation forest ecosystems in semi-arid region of Western Liaoning Province.;遼西半干旱區典型人工林生態系統的水土保持功能
2.A study on the radial variation patterns of wood characteristics of Alnus cremastogyne in plantation forest;榿木人工林木材性質的徑向變異模式研究
3.The short period effect of selective cutting(low intensity) on the physical and chemical properties of soil in plantation forest in rotation was analyzed quantitatively.定量分析輕度擇伐對人工林林地土壤理化性質的短期影響,結果表明:輕度擇伐后林地土壤理化性質受到一定程度的影響,但并不明顯。
6)artificial trees人工林木
延伸閱讀
人工林人工林man-made forest rengong}in人工林(~-made forest)以人工方式形成的森林。造林方式可分為直播(種籽)造林、植苗造林、分生造林、飛機播種造林和人工促進天然更新等。 根據考古資料，中國人工造林始于新石器時代，有文字記載的不晚子周代。世界林業發達國家大面積營造人工林已有2(X)年以上的歷史。據統計，20世紀80年代初全世界人工林面積己有1 .40億公頃。中國大面積人工林的營造是在中華人民共和國建立后開始的，到目前止，人工林保存面積達2 146余萬公頃，蓄積量達41670萬立方米(參見彩圖插頁第52頁)。 人工林的經營目的明確，造林地和樹種選擇，林分空間結構和造林技術，以及撫育措施都是由經營者按其經營目的決定的。人工林與天然林相比，有如下特點:①按經營目的選擇造林樹種，其森林更符合人們的需要。②一般為同齡林，林相整齊。③森林樹種組成較少，層次結構較單純。④個體的水平分布均勻，布局較合理。⑤森林個體分化程度相對較小，但個體與群體的矛盾比較突出。⑥生產周期較短，比較速生豐產。 由于天然林的過度采伐，致使木材供應緊張和生態環境惡化，人們不得不大量營造人工林來彌補森林的不足。但人工林的大量發展，已暴露出不少問題，如森林穩定性差、病蟲害嚴重、地力衰退等。它關系到人工林持續發展的大問題，因此，已引起世界各國林學家的極大關注。一般來說，人工林地力衰退 人工林毛白楊 (《中國國土 畫冊》)主要是樹種選用不當，對立地條件不適應，以及人為管理方法不善的結果。為此，需要采取一系列綜合措施，包括抗性育種、混交間作、施肥改土及必要的生物和化學防治措施等，關鍵還在于建立一個具有結構比較復雜、良性循環的穩定的人工林生態系統(參見彩圖插頁第52頁)。(賴世登)
