They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本研究以重慶市的南川金佛山(自然保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林覆蓋率50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草坡,採用野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原
因,論文主要從土壤剖面物理退化指標(有效土層厚度、有機質層厚度、質地、團聚體、水分含量等) ,化學肥力退化指標(有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等) ,樣地土壤微生物指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子
庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
" when you use a laptop, you can make your head and neck comfortable, or you can make your hands and arms comfortable, but it ' s impossible to do both, " says tom albin of human factors and ergonomics society, a national think tank that has issued a standards report on ergonomics of computer workstations
當你使用膝上型電腦時,你可以使頭部和頸部感覺舒服,或者讓雙手和手臂維持舒適,但不可能兩者同時辦到,曾發布電腦工作站人體工學標準報告的全國性智
庫人性
因素與人體工學協會的艾爾本說。
The maximum entropy principle were used to follow population : ( 1 ) mutiallel population in all population that have the given gene distribution, the equilibrium population entropy reach it ' s maximum, the maximum entropy more than 0, and less than 2 nk ( k is the number of the allel ), and maximum entropy equal two times of the same locus gene entropy
( 1 )復等位基
因群體對具有同一基
因庫的復等位基
因位點,用最大熵證明了該位點所對應的所有群體中,平衡群體的基
因型熵最大,其數值大於等於0 ,小於等於21nk (這里k為該位點等位基
因數目) ,且等於該位點基
因庫熵的兩倍。
I have not yet posted the code for hc at the ananas. org repository because it is not ready for prime time
我還沒有將hc的代碼張貼在ananas . org資源
庫,
因為還沒到恰當的時候。
But as a matter of fact, athropoda has some more complex characteristics than annelida, such as the exoskeleton, departmental body - plan and segmented appendages, which, as one parameter, results in the abundance of arthropod fossils in the chengjiang fossil lagerstatte
但節肢動物還具有比環節動物更高級的特徵,如:身體分部、附肢分節;循環、生殖、排泄等系統均較環節動物復雜高級,這可能是澄江化石
庫中節肢動物種數豐富的一個很重要的原
因。
During the primary research work of chengjiang biota, the paleontologists had an idea that the bivalved arthropod kunmingella douvilleiyas the dominant species because they found that eighty percent of the fossils they excavated in chengjiang fossil lagerstatte were kunmingella douvillei. and they also found that naraoia longicaudata, naraoia spinosa and isoxys auritus which belong to arthropoda were the sub - dominant species
在澄江生物群研究初期,雙瓣殼節肢動物朵氏昆明蟲( kunmingelladouvillei )化石數量占澄江化石
庫中所有化石產量的百分之八十,
因而古生物學家曾認為kunmingelladouvillei是該
庫的優勢種。
To integrate bibliotheca databases with isomerization taxonomy or even different coding rules is a comprehensive project covering multiple factors, of which the selection of a reasonable data arithmetic is the most significant
摘要將不同館藏編碼尤其是連分類系統都不相同的書
庫合併在一起,是一個綜合性項目,涉及到很多
因素。
Mt. 27 : 6 and the chief priests took the pieces of silver and said, it is not lawful to put them into the temple treasury, since it is blood money
太二七6祭司長取了那些銀錠,說,不可把它們放在聖
庫里,
因為那是血價。
The promising thing for the mavericks is that they have an outstanding brain trust in avery johnson, donnie nelson, and mark cuban
對小牛來說,積極的
因素就是他們擁有小將軍、老尼爾森和馬克
庫班這樣的智者。
We speak not to your logical mind but to your memory banks, so that you can begin to remember participating in this story
我們不是說你的邏輯頭腦,而是你的記憶
庫,
因而你可以開始回憶起參與這個故事。
" after all, most wives believe their husbands have no secret assets and they have a grip on their family purse strings, " the life insurer said
保險公司人員指出: 「總之,大部分家庭主婦相信丈夫沒有私人小金
庫,
因為她們牢牢掌握了家裡的財政大權。 」
Medcon - ( x ) medcon - a medical image conversion utility and library ; hereby hoping to lower at least one barrier in medical research projects
一個醫學圖形有效轉換
庫;
因此希望在醫學研究中有最少障礙。
X ) medcon - ( x ) medcon - a medical image conversion utility and library ; hereby hoping to lower at least one barrier in medical research projects
一個醫學圖形有效轉換
庫;
因此希望在醫學研究中有最少障礙。
You can either select a group and use its properties to add users or select a user and use the properties to add groups. we ll click on the users
有一個好處是:可以通過python以外的很多語言訪問tk
庫,
因此您使用python的tkinter模塊學到的大多數知識可以應用到其它語言。
Stackless unwinds up to a dispatcher and starts an interpreter from there. this is nearly the same. real improvements are there for implementations of coroutines and threads
告訴您一個好消息,除了python以外,有許多語言可以訪問curses
庫,
因此您學到的使用python curses模塊的知識同樣適用於其它語言。
His special interests are object - oriented programming languages, relational databases, internet programming, and system programming
他特別喜歡面向對象編程語言、關系數據
庫、
因特網編程和系統編程。
In a production environment, using a remote database server is recommended, since it can improve performance and security, and can reduce the impact of server failure
在生產環境中,建議使用遠程數據
庫,
因為它可以提高性能和安全性,並可以減小服務器故障的影響。
036 because dbverify can be run against an offline database, integrity checks are significantly faster
由於dbverify工具可以檢測脫機的數據
庫,
因此用其進行完整性檢查的速度很快。
As the requirement for freshness is especially high, more attention should be played to the fluctuation of air temperature and loss on refrigeration, apart from air content. this thesis analyses the problems in practice and presents solutions
氣調庫因為對水果的保鮮要求很高,除了對氣體成分控制外,還需要注意溫度場的波動和水果的乾耗,這兩點對于氣調庫是至關重要的。