cover soil 中文意思是什麼
cover soil
解釋
苗床營養土-
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。 -
And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed
研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。 -
This voluntary code addresses issues such as reduced pesticide use, water and energy conservation, waste reduction and recycling, controlling of erosion, the use of “ good bugs ” in the vineyard to kill the “ bad bugs ”, creating and maintaining a habitat for raptors and other wildlife around the vineyards, planting cover crops such as mustard grass and clover to replenish the soil with nutrients, improved farm worker housing, and other measures for making high quality wines in a responsible manner
這個自主的規定公布了如減少殺蟲劑的使用，水和能量守恆，損耗的減少和再生，腐蝕的控制，利用葡萄園里有益蟲殺死有害蟲，創造和保護在葡萄園附近的鳥類和其他野生動物的生存環境，種植覆蓋地表的植被如芥菜和三葉草補充土壤的養份，改善農場工人的住房，和其他能提高葡萄酒質量的有效的方法。 -
Effects of former stubble winter cover crop on microbial characteristics in paddy soil
前茬冬季覆蓋作物對稻田土壤的生物特徵影響 -
The factory undertakes the composing of the following business mainly : white marbl carved stone crouches the lion, the sleeping white marbl carved stone lion leak from the lion, white marbl carved stone, white marbl kylin, white marbl mythical wild animal ( pixiu ), white marbl dragon and phenix lamp pole, white marbl ornamental column, the cattle opening up virgin soil, white marbl figure of the buddha, the top of a pillar stone, white marbl fairy maiden, white marbl personage, white marbl carved stone elephant ( figure in stone ), white marbl dolmen, white marbl shi ting, stone bridge, white marbl stele, white marbl check dragon post, white marbl balustrade, granite dysmorphism, stone strip, flat piece of stone, foundation stone, door block, jade article treating, emboss, ornamental column, dragon post, lettering, silica sand, white marbl woollen cloth, ancient times build gardens ( breast board, platform ming dynasty, artificial stone with textures cut with an axe, rockery design, flowerpot, eroded limestone, mechanism cobblestone, mushroom stone etc. ), rockery fountain, nursery stock flowers and plants etc. paper of, saying that the stone table, stone bench, stone light, board carve characters on a seal, the column, vase post, window cover with, the door pocket, geomantic omen ball wait, and managing
本廠主要承做以下業務:漢白玉石雕蹲獅、漢白玉石雕走獅、漢白玉石雕臥獅、漢白玉麒麟、漢白玉貔貅（皮休） 、漢白玉龍鳳燈柱、漢白玉華表、拓荒牛、漢白玉佛像、柱頂石、漢白玉仙女、漢白玉人物、漢白玉石雕大象（石像） 、漢白玉石牌坊、漢白玉石亭、石橋、漢白玉石碑、漢白玉盤龍柱、漢白玉欄桿、花崗巖異形、石條、石板、漢白玉奠基石、門墩、玉器加工、浮雕、華表、龍柱、刻字、硅砂、漢白玉毛料、古建園林（欄板、臺明、剁斧石、板道、石桌、石凳、石燈、牌匾刻字、圓柱、花瓶柱、窗套、門套、風水球等，並經營假山石、花盆、太湖石、機制鵝卵石、蘑菇石等） 、假山噴泉、苗木花卉等。 -
Effect of straw cover on wheat yield and soil environment in dry land field
稻草覆蓋對旱地小麥產量與土壤環境的影響 -
All the soil cover were stripped away.
全部土壤蓋層都被剝去了。 -
When planting in clay soil, cover seeds with vermiculite instead of clay
當種植在黏土土壤時，用蛭石覆蓋蓋種子而不是黏土。 -
The ash is now the soil, olive and fruit trees cover the landscape, and former atlantis ( crete, santorini, and perhaps other aegean islands ) is mostly buried
火山灰現在是土壤，橄欖樹和果樹覆蓋著土地，從前的亞特蘭蒂斯（克里特，聖多里尼，很可能還有其他愛琴海的島嶼）大部分都被埋藏了。 -
Meanwhile, the study also shows that the diversity of studied cave animals is inversely proportional to human population density and water quality ; and bio - diversity, to some extent, is proportional to soil fertility and amount of chemical fertilizer, but inversely when excessive ; the correlativity between bio - diversity and vegetation cover rate is not obvious, when ground vegetation is strongly interfered by human being ; the amount of diestrammena marmorata is proportional to the d iversity of plant, and inversely proportional to soil fertility, and in a way, to water quality ; and the correlativity between community and water quality and soil fertility, and between water quality and the amount of mosquito and fly, is not as good as expected. the author points out that diestrammena marmorata, bat, mosquito, fly, oreolalaxrhohostig metus ( or cudata ), and fish can be chosen as in
同時，研究還表明：調查洞穴的物種多樣性與人口密度、水質成負相關；在一定范圍內，物種多樣性與化肥施用量、土壤肥力成正相關，超過一定的值則成負相關;在人類對地表植被的高強度作用下，物種多樣性與植被覆蓋率的相關性不明顯;蚊蠅數量與土壤肥力基本上呈正相關;斑灶馬數量與植物種數呈正相關，斑灶馬數量與在一定水質范圍內與水質呈負相關，與土壤肥力呈負相關;群落數與水質和土壤肥力、蚊蠅數量與水質都不能表現較好的相關性;研究認為，可以選擇斑灶馬、蝙蝠、蚊蠅、紅點囊蟾（或有尾類） 、魚類等作為指示動物對洞穴環境進行監測。 -
The forest cover will rise from 10. l percent to 27 percent in 30 years in the other three major control regions, namely soil erosion areas in the middle reaches of the yellow river, wind eroded areas on the loess plateau and areas along river sources in qinghai province
用30年左右的時間，使黃河中游水土流失區、黃土高原風沙區、青海江河源頭三個重點治理區森林覆蓋率由目前的10 1提高到27以上。 -
Mongolica young stand, secondary natural forest, and the mixed forest of larix olgensis and fraxinus mandshurica rupr. countermeasures for controlling soil degradation were also recommended. the study got following results : ( 1 ) from young stand to mid - age of larix olgensis, with the closure of canopy and the decrease of undergrowth vegetation cover, soil acidity, enzyme activity, total inorganic phosphorus, available k, soil moisture and total porosity decreased significantly ; while soil organic matter content, humus component content, the amount of three main types of microbes, acid phosphatase activity, and bulk density in rhizosphere soil and non - rhizosphere soil increased with the increase of the amount of forest floor litter ; from mid - age stand to near mature stand, with the decrease of stand density and crown cover as well as the restoration of undergrowth vegetation after preliminary thinning, soil organic matter content, fulvic acid, exchangeable acidity, exchangeable aluminium, neutral phosphatase activity, total amount of inorganic phosphorus, the amount of actinomycetes, soil moisture, and total porosity in rhizosphere soil and non - rhizosphere soil apparently increased ; from near matu re stand to mature stand, soil activity acidity, organic matter content, humus component content, available phosphorus, total amount of amino acid, available k, soil enzyme activity, soil moisture, and total porosity in rhizosphere soil and non - rhizosphere soil decreased, but total phosphorus, soil acidity ( in particular, exchangeable aluminium ), and bulk density increased
結果表明： （ 1 ）從落葉松幼齡林到中齡林，隨著林冠的郁閉和林下植被蓋度的急劇下降，林地土壤酸度、土壤酶活性、無機磷總量、速效鉀、土壤水分含量、總孔隙度呈明顯下降趨勢，而根際和非根際土壤有機質含量、腐殖質各組分含量、三大類微生物數量、酸性磷酸酶活性和土壤容重隨著凋落物的增加呈明顯上升趨勢；從中齡林到近熟林，由於撫育間伐，林分密度及郁閉度下降，林下植被蓋度逐步得到恢復，根際與非根際土壤有機質含量、富里酸、交換性酸、交換性鋁、中性磷酸酶、無機磷總量、放線菌數量、土壤水分含量、總孔隙度呈明顯的上升趨勢；從近熟林到成熟林，隨著林齡的增大，根際與非根際土壤活性酸、有機質含量、腐殖質各組分含量、有效磷含量、氨基酸總量、速效鉀、土壤酶的活性、土壤水分含量和總孔隙度呈下降趨勢，而根際與非根際土壤全磷含量、土壤酸度（特別是交換性鋁）和容重呈增加趨勢。 -
Furthermore, on the basis of consultancies, inquiries and evaluations from multiple sources, the model for predicting soil and water loss in dandong - zhuanghe highway construction is developed. moreover, considering the characteristics of the highway, the covering area of the project is divided into three parts such as main body area, soil - fetching area and soil - spoiling area. for these three preventive areas, the perfect precaution measures for preventing and curing the soil and water loss during the road construction in which a number of vegetal cover measures are taken
論文中詳細調查並介紹了項目情況及沿線自然、社會經濟狀況；收集研究了公路建設項目水土流失預測的基本內容和方法，在多方查詢、請教專家及分析研究的基礎上，提出了丹莊高速公路水土流失預測模型，針對項目不同區域進行了水土流失預測和分析，為水土保持措施的設計提供了定量依據；論文根據高速公路項目的特點，將丹東至莊河高速公路項目區分成了主體工程、取土場、棄土場三個水土流失防治區，並在初步設計文件的基礎上，針對三個水土流失防治區進行了較為完善的水土保持防治措施設計；論文在丹東至莊河高速公路水土保持方案設計中大量採用了植被防護措施，為了更有力地指導植被措施的施工，論文中還就植被保持水土的有效性進行了研究探討。 -
Place the seed flat side down ( in pergamino if possible ) in the hole and sprinkle soil to cover the hole
沿著在那些洞放置那些種子（如果可能的話在涼棚里） 、撒土壤蓋住那些洞。 -
The middle and lower parts of woodland and grassland had higher soil water contents during rainy season, which resulted from smaller evapotranspiration and more infiltrated water with a lower gradient. however, upslope runoff infiltration was another reason for hillslope with a lower cover ratio, such as bare land
雨季林草地坡中下部土壤水分含量較高的原因，可能主要與其蒸散較小且坡度較緩導致入滲水量較多有關；但是對于植被覆蓋度較低的坡地（如裸地） ，坡中下部土壤水分含量較高還與上方來水有較大的關系。 -
According to the idiographic complexion of our country, the article elucidated the connotation of conservation tillage : it ' s a technology of tillage with minimum tillage or no - tillage so as to reduce the soil ' s disturbing, using stalk cover the field so as to decrease laboring and tillage ' s cost, preventing wind & water erosion, and improving the fertility of soil and the ability of fight a drought
摘要根據保護性耕作在我國的實施情況並結合國外已有研究結果，我們認為保護性耕作的內涵為：保護性耕作措施就是對農田實行少耕或免耕，盡可能減少對土壤的擾動，並以秸稈覆蓋地表，達到減少勞動強度和生產投入，防止農田風蝕和水蝕並提高土壤肥力和抗旱能力的一種農田耕作技術。 -
Investigation of soil and water loss in hunan and jiangxi provinces shows that there are still evident soil and water loss under forest even through the forest cover rate is as high as 51. 4 % and 53 % respectively
對湖南、江西兩省水土流失概況的調查結果表明，盡管森林覆被率高達51 . 4 %和53 % ，林地中的水土流失仍十分明顯。 -
Stability analysis of the cover soil on geosynthetic lined slope in waste landfill based on rainfall seepage
滲流作用下垃圾填埋場封蓋坡體穩定性分析 -
Study on stability of veneer cover soil of variational thickness on the slope of expansive soil subgrade
膨脹土路基邊坡變厚式封面層穩定性實驗研究 -
3. making the synthetic analysis with models and methods of rs and gis, this thesis achieves the data collection and information extraction of the ecological function regionalization indicators system, form the research achievements fixed region ecology environment system shape form. and analysis the land cover, vegetation cover, soil erosion etc. with rs, gis tools
3 .採用遙感技術和地理信息系統技術的多種模型與方法綜合分析，實現生態功能區劃指標體系各指標因子的數據收集和信息提取，形成定量反映區域生態環境系統安全形狀的研究成果:並對土地覆蓋、植被覆蓋、水土流失等主要因子進行了遙感分析和gis空間分析。
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