In this paper, two major types, the natural vegetation and crop vegetation in luota are studied. we can gain the different distributive area by remote sensing technology, in accordance with conifer forest, broadleaf forest, thick shrub forest, shrub forest, herbs shrub forest, herbs naked rock and crop vegetation. the valuation of the output of standing trees, water conserbancy, soil conserbation to control erosion and purify the air is the main basis which is used to value the functions of the forest ecosystem of the conifer forest and broadleaf forest of luotathe result reveal that the total ecological function value of the forest which area is 1388. 8 hm2 is estimated up to 18. 36 million yuan per annum. the synthetic valuation system of luota vegetation is put forward by the valuation of per hm2 in evergreen - deciduous forest, conifer forest, conifer and broadleaf forest, broadleaf forest, scatteredtree - shrub forest, coppice - shrub forest, herbs shrub forest, econamic crop and cereal crops. the plant resources is valued according to the ornamental and green plant. lumber trees and medical plant. ornamental plant includes hosta plantaginea. lilium brownii van viridulum, spiraea cantomiensis and so on. lumber tuees includes zzzelkova schneideriana, emmenopterys henryi, catalpa fargesii and so on
本文把洛塔現存植被分為自然植被與栽培植被兩大類進行研究,通過遙感技術對現存植被按針葉林、闊葉林、密灌、灌叢、草灌、荒草裸巖、農作物植被等類型進行分佈面積的統計,在此基礎上,以林產品價值、涵養水源價值、保護土壤價值和凈化空氣價值作為估算的主要參考依據,對已成林的針葉林與闊葉林進行森林生態系統的價值估算,得出面積為1388 . 8hm ~ 2的針葉闊葉林的森林生態價值為1836 . 37萬
元,參照這一生態價值量,把洛塔植被按常綠落葉林、針葉林、針闊
混交林、闊葉林、疏林?灌叢、矮灌叢、荒草灌叢、經濟作物和糧食作物,以每hm ~ 2的價值量提出了洛塔植被的綜合價值體系。
As we presented in the paper, with the evolution procedure accomplished of neurons from the single - celled organisms and multicellular animals that lack nervous system, the evolution course of nervous system could be summarized briefly as : chaos phase, equally nerve net, centrilized network phase and bilateral symmetry, hierarchical organization and cephalization phase
研究表明,從原始的單細胞有機體類似神經動作電位的協調功能逐步進化成神經
元開始,神經系統大致經歷了
混沌階段、平權網路階段、中心化網路階段和雙側對稱的層次體系結構等進化階段。
The main contents are given in this paper as follows : firstly, the chaotic dynamic and the finite element method are introduced
全文主要內容包括:一、
混沌動力學與有限單
元法的介紹。
When reinforced concrete upper structure - piled raft - subsoil system is studied, every part of this system is looked upon homogeneous discrete space. accofding to static equivalent principle, equivalent node loads are calculated, and load embattle is integrated with element equivalent node force and directly bearing load
在分析時,本文將鋼筋
混凝土上部結構和地基、基礎的研究問題視為各向同性空間問題,且按靜力等效原則計算等效節點荷載,荷載列陣由單
元等效結點力和直接作用於單
元結點上結點荷載集成而得。
The study work includes three parts. in the first part, numerical methodology of three - dimensional discrete fracture network ( dnf ) model casing on hybrid bem - channel was presented, and the technique for improve the model ' s computing efficiency was also studied
首先,提出了一種基於
混合邊界
元?管流的改進的三維離散裂隙網路模型,並研究了提高模型計算能力的方法,使其可以具有更好的工程應用性。
It was a long, difficult business, for the coins were of all countries and sizes - doubloons, and louis - d ors, and guineas, and pieces of eight, and i know not what besides, all shaken together at random
這是個費時費力的活兒,因為這些硬幣來自各個國家,模樣各異西班牙金幣,還有法國金路易英國基尼以及八里亞爾的西班牙銀
元,還有其他我不認識的,都雜亂地
混在一起。
Regard - ing the surface runoff mechanism, liang and xie 1, 2 presented a new surface runoff parameterization which dynamically represents both the horton and dunne runoff generation mechanisms within within a model grid cell together with a consideration of the subgrid - scale het - erogeneity, which can be applied to not only humid regions but also droughty regions as well 3, 4. regard - ing the soil water movement, xie et al. 5 developed an unsaturated flow numerical model based on the finite element method, and xie et al. 6 presented another numerical model to compute soil moisture and water flow flux together by means of a mixed finite element method
在地表徑流方面,文獻1 3發展了一種同時考慮蓄滿超滲產流機制及次網格非均勻性的新的徑流機制模型,並用其改進了陸面模式vic variable infiltration capacity中的徑流計算,該模型既適用於濕潤地區也適用於乾旱地區4 .在土壤水模型方面,文獻5採用有限
元質量集中法發展了非飽和土壤水流的數值模型,文獻6則採用
混合有限
元法建立了非飽和土壤水分含量和通量計算的數值模型
To that end, i now teach hunyuan chen style taijiquan in the milwaukee area
最後,我現在美國密爾沃基地區教授陳式心意
混元太極拳。
Ryan runs to the bucket in agitation, ready for a violent kick. " take this ! thunderbolt kick !
雷恩興沖沖的跑到水桶面前,準備他驚世一踢!看我的,踢破穹蒼
混元霹靂腳!
This proof following enterprise already through the authentication, and has set up a file in the dongguan 114 nets industry and commerce enterprise database, inquires the more detailed enterprise material, please dial the dongguan enterprise information desk 96060 ( artificially ) 9686810114 billion ( to be automatic ), this enterprise numbers for 42392
茲證明東莞混元靈通已通過認證,並已在東莞114網工商企業數據庫中備案,查詢更詳細的企業資料,請撥東莞企業查詢臺96060 (人工) 9686810114 (自動) ,該企業編號為42392 。