1)Stand structure林分結構
1.Stand structure and yield of the mixed white poplar and black locust plantations on sandy ridges between the Danube and Tisza rivers in Hungary;匈牙利丹努波(Danube)河和梯沙(Tisza)河間沙丘洋槐--銀白楊混交林林分結構和產量研究(英文)
2.In this paper,the stand structure of Bambusa pervariabilis×Dendrocalamopsis Daii is analyzed on the basis of extending the stand in the areas of converting farmland to forest program.本文通過調查四川省退耕還林區撐綠雜交竹林分,分析了撐綠雜交竹林分結構變化規律,結果表明退耕還林區撐綠雜交竹林分在直徑變化、稈齡、生物量以及葉面積指數等方面具有一定的規律。
3.From the point of view of relationship between stand structure and silvan health,classifying forest by health was brought forward.闡述了森林健康的意義和概念,并從林分結構與森林健康關系的角度提出森林健康分類的意見;結合廣東林分結構與森林健康的分析,提出提高森林健康水平的建議。
英文短句/例句
1.The Examples of picea and Abies Forest Structure in Taohe County,Gansu Province甘肅省洮河林區云、冷杉林分結構實例
2.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
3.Study on Stand Structure of Protection Forest and Tree Composition of Economy Forest in Loess Platesu;黃土高原防護林林分結構和經濟林樹體結構的初步研究
4.Study on the Quantitative Analysis of the Oak Natural Secondary Forest in Baotianman Nature Reserve;寶天曼櫟類天然次生林林分結構量化分析
5.The analyses of major plantation trees stand structure in Helongjiang黑龍江省主要人工林樹種林分結構分析
6.Structure Patterns of Soil and Water Conservation Forests in Limestone Area Taihang Mt.太行山石灰巖區水保林林分結構模式研究
7.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
8.Study on the Relationship between Forest Combustibility and Stand Structure in Mountains Region of BeiJing;北京周邊山地森林燃燒性與林分結構關系研究
9.Study on Stand Structure Regulation of B.pervariabilis×D.Daii on Districts of Converting Farmland to Forest Engineering;退耕還林地撐綠雜交竹林分結構規律研究
10.Studies on the Shelter Forest Hydrology Effect of Mountain Region of Stone Quality and Forest Composition Structure Disposing;石質山地防護林水文效應及林分結構配置研究
11.Study on the Distribution Patterns of Forests and Natural Regeneration of Larix Gmelinii in Cool Temperate Zone;寒溫帶興安落葉松林林分結構與天然更新研究
12.Stand Growth Corresponding with Stand Structure in Plantation of Pinus Tabulaeformis;油松人工林生長特征及其與林分結構關系研究
13.Research on Structure and Growth of Pinus Tabulaeformis Stand Simulation in Beijing北京山區油松人工林林分結構與生長模擬研究
14.Spatial structure of mixed larch-spruce-fir stands長白落葉松-云杉-冷杉混交林林分空間結構分析
15.The Demonstration Analysis of the Relationship between the Foreign Trade and Industry Structures in Jilin Province;吉林省貿易結構和產業結構關系的實證分析
16.Analysis and Adjustment of Mining Industrial Structure in Jilin Province;吉林省礦業產業結構分析與產業結構調整
17.Analysis of the relationship between industry structure and fixed assets in Jilin province吉林省固定資產投資結構與產業結構關聯分析
18.A Preliminary Investigation on Forest Composition and Structure of Campus in Nanjing Forestry University in Nanjing;南京林業大學校園森林群落結構特征分析
相關短句/例句
forest structure林分結構
1., pure forest and mixed forest) and forest structure of bamboo forests such as density, age structu.竹林經營類型(純林、混交林)、立竹密度、立竹年齡結構、大小年等林分結構狀況與災害程度密切相關。
2.Aiming at high quality and benefit of Dendrocalamus latiflorus for bamboo shoot, based on the study of relations among main factors of forest structure and economical characters of bamboo shoot, a high-yielding forest structure was established by trend face measure.以麻竹筍用林優質高效為目標,在林分結構主導因子與竹筍經濟性狀關系研究基礎上,趨勢面法構建豐產林分結構模式。
3.How to manage the over_logged natural forest to keep its perfect forest structure and to bring good benefit is one of the keys to ensure the over_logged natural forest ecosystem succession ahead.為使過伐林保持好的林分結構 ,并使森林生態系統在經營情況下正向演替 ,從而產生較高的效益 ,該文作者以金溝嶺林場的云冷杉針闊混交林為研究對象 ,分析了該林場始于 1 987年的檢查法經營下連續 1 4年的森林資源調查數據 。
3)law of stand structure林分結構規律
1.Based on the analysis of the contents and technical characteristics of different scale forest visualization modeling,the design of individual tree modeling,law of stand structure,forest scenery rendering etc.在分析不同尺度的森林可視化建模內容和技術特點的基礎上,從單棵樹的建模、林分結構規律,森林場景的繪制技術等幾個方面展開論述。
4)Vertical structures林分垂直結構
5)forest stand spatial structure林分空間結構
6)Culm-age structure of the stands林分稈齡結構
延伸閱讀
Hodge結構的變分Hodge結構的變分variation of Hodge structure H以觸e結構的變分〔variati.l ofH以觸e str優tUre]【補注】復流形獷上權w的H(心羅結構的變分(va-dation of Hed羅structureof忱igllt、、)是一個二元組，=(筍z，.了)，這里了z是‘，上有限生成Abel群的局部常層，了是由全純子叢構成的v一筍z⑧，乙的有限下降濾過，滿足以下條件:i)由V(v因f)“v⑧df定義的V上平坦聯絡V，這里u，f分別是筍:和沼的局部截面，且此聯絡滿足v(.了“)C=.、夕一’⑧Q仁(Gr涌ths橫截性(Griffithstransversality));li)對每個、‘(/>，二元組(，乙，、，廠(s))是俘、‘的Hod羅結構(Hod羅structure of weightw)· Hodge結構的變分(了z，L、)的極化(po壇咖-tion)是一個平坦雙線性型聲z⑧護，一Z，，它對每個、‘、誘導了H閱羅結構筍乙.、的極化.當z被換成Q或R時，類似的概念仍然存在(IAll，IA21).如果f:x~S是C上代數簇的光滑真態射，則R川f.z、是少上Hod羅結構的可極化變分的底局部系.根據A .Borel的一個結果，對于形如S\D的復流形S上的Hodge結構的可極化變分，這里S是緊的且Dc了是具有正規交叉的除子，則圍繞D的每個局部分支的單值是擬么冪的“A3])(獸停牢粵(mono-dromy theo~)).5上H‘對羅結構的極化變分引起了從s到Hod羅結構的分類空間的一個全純周期映射(period TnaPPing). 如果.了=了\D，這里了是緊腸扮er流形，D是萬上具有正規交叉的除子，則對于s上Hodge結構的極化變分(筍z，、)，層夢z具有到了上反常層(perverse sheaf)IC(少，)的一個極小擴張，且IH’(了，IC(’/‘))帶有純Hodge結構(【A4]一IA6」).事實上IC(，z)是極化Hod羅模的一部分“A71).其推廣有混合Hed羅結構的變分(variationof獻edH瀏gestrucr毗)([AS}，[Ag})和混合Hod邵模(而xed Hod羅m閉ule)(【Alo」)的概念.
