1)artificial[英][,ɑ:t?'f??l][美]['ɑrt?'f???l]人工落葉松
1.Larix artificial rearing of the impact and effectiveness of logging analysis淺談人工落葉松撫育采伐的影響和效果分析
2)Larch plantations落葉松人工林
1.The research was made that the change of component of soil humic substances in larch plantations and its effects on the soil acidity at the different development stages (young stand, half_mature stand, near mature stand, mature stand and young stand in the second rotation).對落葉松人工純林不同發育階段幼齡林、中齡林、近熟林、成熟林及二代幼齡林土壤腐殖物質組分變化及其對酸度的影響進行研究,以次生林和一代幼齡林為對照,比較不同發育階段落葉松人工林與天然次生林、一代幼齡林與二代幼齡林土壤有機質含量、腐殖物質組分特征的差異。
2.After 50 years forestation, the larch plantations have already became near-mature forest or mature forest and been the important commercial forest base now.落葉松是我國北方林區主要的造林速生樹種之一,經過50多年的森林營建,落葉松人工林大部分已進入近熟林、成熟林階段,已成為我國重要的用材林基地。
英文短句/例句
1.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
2.Study on Effects of Tending Thinning of Larix Principis-rupprechtii Mayr. Plantation;華北落葉松人工林撫育間伐效果研究
3.Study of Density Control Techniques of Larix kaempferi Plantation日本落葉松人工林密度調控技術研究
4.Compare Study on Nutrient Ecology of Pinus Koraiensis and Larix Olgensis Plantation Ecosystems;紅松和落葉松人工林養分生態學比較研究
5.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
6.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
7.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
8.Canopy Gap Characteristic and Its Effects of Larix Principis-rupprechtii Plantation in Yanshan Mountain;燕山山地華北落葉松人工林林隙特征及其影響
9.Study on Litterfall Dynamics of Pinus Koraiensis and Larix Gmelinii Plantations in Maoershan Area;帽兒山地區紅松和興安落葉松人工林凋落物動態研究
10.Fine Root Turnover and Carbon Allocation in Manchurian Ash and Davurian Larch Plantations水曲柳落葉松人工林細根周轉與碳分配
11.CLASSIFICATION OF ARTIFICIAL FOREST SITE OF LARIX OLGENSIS IN LIAONING PROVINCE遼寧省長白落葉松人工林立地分類研究
12.Study on the Natural Thinning of Population in Man-made Japanese Larch Forest.日本落葉松人工林種群自然稀疏規律的研究
13.Study on Mechanism of Photosynthesis and Respiration of Larix Gmelinii Plantations;興安落葉松人工林光合與呼吸作用機理的研究
14.Study on the CO_2 Flux of a Larch Plantation in NE China by the Micrometeorological Method;基于微氣象學方法的落葉松人工林CO_2通量研究
15.Study on Biomass Carbon Accounting Factors of Larix Principis-rupprechtii Plantation;華北落葉松人工林生物量碳計量參數研究
16.Study on Key Process of Carbon Cycle in Larix Gemelinii Plantation;興安落葉松人工林碳循環關鍵過程的研究
17.Studies on Soil Adaptability and Soil Management Techniques for the Larix Olgensis Plantation;長白落葉松人工林的土宜及土壤管理技術
18.Crown Architecture and Dynamics of Branch Growth in a Larch Olgensis Plantation;落葉松人工林樹冠構筑型及枝生長動態的研究
相關短句/例句
Larch plantations落葉松人工林
1.The research was made that the change of component of soil humic substances in larch plantations and its effects on the soil acidity at the different development stages (young stand, half_mature stand, near mature stand, mature stand and young stand in the second rotation).對落葉松人工純林不同發育階段幼齡林、中齡林、近熟林、成熟林及二代幼齡林土壤腐殖物質組分變化及其對酸度的影響進行研究,以次生林和一代幼齡林為對照,比較不同發育階段落葉松人工林與天然次生林、一代幼齡林與二代幼齡林土壤有機質含量、腐殖物質組分特征的差異。
2.After 50 years forestation, the larch plantations have already became near-mature forest or mature forest and been the important commercial forest base now.落葉松是我國北方林區主要的造林速生樹種之一,經過50多年的森林營建,落葉松人工林大部分已進入近熟林、成熟林階段,已成為我國重要的用材林基地。
3)larch plantation落葉松人工林
1.Effect of major environment of canopy openness produced by thinning in larch plantation;落葉松人工林開闊度的主要環境效應
2.The effect of Zeiraphera lariciana and Zeiraphera grisecana on growth of larch plantations;兩種線小卷蛾對落葉松人工林生長的影響
3.Soil acidity change of Larch plantations and relation between change and inorganic phosphorus types;落葉松人工林土壤酸度變化與無機磷形態的關系
4)Larix olgensis plantation落葉松人工林
1.The soil degradationin in Larix olgensis plantations, to a certain extent, has been found.落葉松人工林土壤質量存在著不同程度的下降問題。
2.Models for simulating locational distribution of total branches, both along and around the bole, and for estimating crown profile of primary branches within live crown were developed in a 26-year-old Larix olgensis plantation based on the circular branch analysis technique.本文以26年生長白落葉松人工林為研究對象,利用團狀枝解析的方法,研究了主要枝條在樹冠內的分布(包括垂直分布和水平分布),構建了樹冠構筑型模型,及主要枝條基徑和枝長的生長特征和生長動態。
3.This study was conducted based on the common characteristics of low mixture degree and uniform distribution of Larix olgensis plantation in a 15-year-old plantation.(2) 15%左右為15年生落葉松人工林最優的間伐強度,空間優化達到最佳,優化后林分競爭態勢減小,生長空間利用程度增大,林分空間結構得到改善,模擬20年、25年生林分空間結構優化經營,最優的間伐強度為15%、10%左右。
5)artifical Larix gmelinii forest人工落葉松林
1.Precipitation hydrochemical characteristic in virgin Pinus koraiensis forest and artifical Larix gmelinii forest in Liangshui National Nature Reserve;涼水國家級自然保護區原始紅松林和人工落葉松林降雨的水化學特征
6)Larix principis-rupprechtii Plantation華北落葉松人工林
1.Effects of thinning on edge effect of Larix principis-rupprechtii plantation間伐對華北落葉松人工林邊緣效應的影響
2.The problem are being brought out on cutting and regeneration of Larix principis-rupprechtii Plantation in a large scale in semi-arid region.我國半干旱地區華北落葉松人工林正面臨大面積采伐更新的問題,其采伐跡地更新樹種選擇的成敗事關生態建設和經濟發展的雙重主題。
3.The experiment is carried out in 32 year old Larix principis-rupprechtii plantation,combining the experimental results of soil water and nutrient.針對半干旱地區華北落葉松人工林傳統密度控制理論的弊端,以32年生華北落葉松人工林為研究對象,通過對土壤水分和養分的測定結果,結合華北落葉松人工林多年的生長表現,提出根據水分和養分環境容量來確定人工林合理密度的新方法,為半干旱地區華北落葉松人工林的可持續經營提供科學依據。
延伸閱讀
人工①人為;人做的。與“自然”、“天然”相對:人工降雨|人工取火|根須茁壯,枝葉繁茂,豈是人工做得出來的。②人力;用人力做的工。與“機械力”相對:人工開成的渠|拖拉機來不及運,還得用人工挑。③勞工;傭工:派人工進山砍伐|貧居乏人工,灌木荒余宅。④量詞。一個人工作一天的量:做一張書桌要用三個人工|算一下打口井要多少人工。
