1)artificial afforestation人工造林
1.Preliminary report on community characteristics and artificial afforestation of Delavaya toxocarpa in karst area of Guangxi廣西巖溶地區茶條木群落特征與人工造林研究初報
2.Annual runoff amount of river basin is a significant basis for water resources evaluation and its allocation in reason,while the water reduction function of artificial afforestation is a foundation of estimating influences of soil and water conservation on annual runoff amount.流域年徑流量是水資源評價與合理配置利用的重要依據,而人工造林的減水作用又是估算水土保持對河川年徑流量影響的基礎。
英文短句/例句
1.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
2.The artificial afforestation area is 4.388 million hectares, and the afforestation area by the plane is 911000 hectares.其中人工造林438.8萬公頃，飛播造林91.1萬公頃。
3.China's Afforested Area Comes First in the World中國人工造林面積居世界首位
4.Effects of Reforestation on Species Diversity and Soil Fertility;人工造林對植物多樣性及土壤肥力的影響
5.Analysis on Current Situation of Artificial Forestation in Jinghong City and Existing Problems景洪市近年人工造林狀況及存在問題分析
6.Study on Soil Physic Characters Changes with Plantation in Datong大通縣人工造林對土壤物理性狀影響的研究
7.Survey on the Afforesting Effect of Pinus Armandi Plantation in Sichuan Huili County四川會理縣華山松人工造林成效初步研究
8.Study on Approach to Selection for Reforestation Sites by ArcGIS Software基于ArcGIS進行人工造林地塊的選擇方法研究
9.Effect of Adverse Climatic Conditions on Artificial Afforestation in Zhangwu Sandy Area彰武沙區不良氣候條件對人工造林的影響
10.Ecological Functions and Processes in Successive Replanting Stand and Natural Regrowth Following Fallow on Clear-cutting Forestland of Chinese Fir Plantations Ecosystem;杉木林采伐跡地人工造林與自然恢復的生態功能過程研究
11.The Characteristics and the Ways of Cultivated Pinus sylvestris Forest in Forest Zone of Daxingan Mountains of Inner Mongolian內蒙古大興安嶺林區樟子松人工造林的特點與方式
12.Study on Forest Hydrological Effects and Optimal Afforest Models of Artificial Water Conservation Forest人工水源涵養林水文效應與優化造林研究
13.Evaluation on Site Quality of Plantation in Mountainous Area in Southeast of Inner Mongolia內蒙古東南部山地人工林造林立地質量評價
14.A research on the Evaluation of Afforestation and Plantation Quality in East China華東監測區營造林與人工林質量狀況評價
15.Structural Characteristics of the Three Forest Plantation and the Strategies for Forest Rehabilitation三種人工林的結構特征及林分改造對策
16.Note:Total area of afforestation include 100000 hectares of planted protection forests.注：全國合計造林面積中包括軍事管理區100000公頃人工營造的防護林。
17.Effect of Seedling Age on Tree Growth in Yunnan Pine Juvenile Stand苗齡差異對云南松人工幼林林木造林當年生長影響的研究
18.Anatomical Structure, Chemical Characteristics and Utilization of Bark of Acacia Artificial Forest相思人工林樹皮解剖構造、化學特性與開發利用
相關短句/例句
artificial forestation人工造林
1.Research on artificial forestation and cultural techniques to Fraxinus manshurica;水曲柳人工造林與培育技術的研究
2.Proposals like closing hillside to facilitate afforestation, artificial forestation and species selection were made for regeneration of Bursaphelenchus xylophilus deseased pine forest.針對演替類型及更新樹種存在單調貧乏的現狀，結合海島具體實際，提出封山育林、人工造林和樹種選擇的方向性建議，將為松村線蟲病除治跡地的更新改造提供依據。
3.According to the data of forest resource inventory in 1993 and 2006 respectively,the paper analyzed the original land sort and structure,forest species structure and tree species of artificial forestation in Jinghong city in recent years.基于1993、2006年森林資源二類調查數據,對景洪市近年人工造林的原土地種類及結構,林種結構、樹種結構等情況進行分析,認為目前人工林發展存在著林農糾紛加劇,天然林不斷減少,毀林營造經濟林現象突出,經濟林種植比例過高,天然竹林的減少影響了動物食物來源,商品林比重過大導致林種、樹種及林齡結構失衡等問題。
3)afforestation[英][?,f?r?'ste??n][美][?'f?r?s'te??n]人工造林
1.Based on status space analysis and optim um theory and m ethod, this paper puts forw ard an optim um m odel for afforestation.應用狀態空間分析和最優化理論與方法建立了一個人工造林的最優控制模型，給出了一個用數學規劃求解的實
2.Species composition, structure and species diversity of communities were studied, which was formed after (afforestation in) Tieweizhai, Bishan County.從群落種類組成、結構特征和物種多樣性角度對重慶市璧山縣鐵圍寨馬尾松人工造林生態恢復過程中的群落進行了研究。
3.：9 year s afforestation of Schima superba showed that, in the belts with an elevation of more than 900 m, proper afforestation time was the middle ten days of March;in the belts with an elevation of 500～900m ,proper afforestation time was the first ten days of March;in the belts with an elevation of less than 500m, proper afforestation time was the last ten days of Febuary.經 9 年來對木荷人工造林的實踐：海拔 900m 以上地帶，宜在 3 月中旬造林；海拔 500～900m 地帶，宜在 3 月上旬造林；海拔 500m 以下地區，可在 2 月底造林。
4)Plantation[英][plɑ:n'te??n][美][pl?n'te??n]人工造林
1.Study on Soil Physic Characters Changes with Plantation in Datong大通縣人工造林對土壤物理性狀影響的研究
2.Approach on Plantation Status in Wulan烏蘭縣人工造林現狀探討
5)plantation reformation人工林改造
6)afforested land人工造林地
延伸閱讀
人工造林人工造林forest plantation 在技術上要求根據林木生態適應性和生長發育規律進行科學造林，只有把握住良種壯苗、適地適樹、及時撫育間伐、防蟲治病等生產環節，才能達到速生豐產的目的。 中華人民共和國建立以來，中國人工造林取得舉世矚目的巨大成績。目前，人工林保存面積達2 146余萬公頃，蓄積量41 670萬立方米。但是存在的問題也很突出:首先是人工林生產力普遍偏低，全國人工林平均每公頃蓄積量只有33.3立方米，僅相當于全國林分平均每公頃蓄積量的l乃強;其次是人工造林質量差，造得多，活得少，保存率不到30%。提高人工造林技術，加強人工林的管理，由粗放型向集約型過渡，建立高標準集約經營型的人工林生產基地則可大幅度提高林地生產力。癮 北京市城市路旁植樹(羅錫鵬攝) 一般來說，只要經營管理得當，人工林有較高的生產力。人工林的主要特點是:①所用的種子、苗木或其他繁殖材料經過人為選擇和培育，具有良好的遺傳品質和種質，有較強的適應性。②樹木個體密度適宜，在林地上分布均勻，避免了種內競爭的消耗。③可以用較少的樹木個體數量形成森林，群體結構合理。④生長整齊的樹木個體有利于林木提前郁閉，并且郁閉后個體分化程度相對較少。⑤人們可以通過多種措施調控人工林，以提高其生產力。(陳飛)rengong zoolin人工造林(forest plantation)在無林地上，采用人工的方法利用苗木種子或營養器官(如枝、莖稈、根等)進行造林。而在采伐跡地或火燒跡地上采用人工種植方法恢復森林時，則稱為人工更新。 人工造林是擴大森林資源、改善生態環境和緩解中國木材供需矛盾的主要途徑之一(參見彩圖插頁第52頁)。人工造林
