覆蓋壤土 的英文怎麼說
中文拼音 [fùgěrǎngtǔ]
覆蓋壤土
英文
cover loam-
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。Based on the actual situation in the upper reaches of minjiang river, the main assessment factors such as strata structure, landform, vegetation covering eco - environment, surface water, ground water, agrotype and geological hazard are selected in this paper
本文根據岷江上游的實際情況選取巖性構造、地形地貌、植被覆蓋生態區、地表水、地下水、土壤類型及地質災害等因素作為評價因子。During the 1950s, 1960s, 1970s and up to the early 80s, the key planting objectives were to restore vegetation to the badlands and to cover the eroded scars with trees as soon as possible - to prevent further erosion and to assist in the development of better soils
由1950年代至1980年代初,植林的重點目標是盡快使劣地重長植被,以樹木覆蓋侵蝕痕跡,從而防止水土繼續流失,幫助建立更佳的土壤。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Description : cover crops for conservation agriculture, diversification and biodiversity : radish ( iapar variety ), very effective for weed control, decompaction and good fodder ; lots of bees in the field
保護性農業中覆蓋作物的多樣化和生物多樣性。蘿卜作為覆蓋作物有效的控制雜草、疏鬆土壤;它還是好的動物飼料,吸引大量的蜜蜂。The primary representations of the vulnerabilities of water resource in hengyang basin where is a typical hilly region with red and purple soils in south china are analyzed : the precipitation re source varies greatly in spatial and temporal distribution ; the soils and rock property are not in favor of water and soil conserving ; the structure of crops needs a high water consumption ; and the farm irrigation works are timeworn and frangible
摘要以中國南方典型的紅壤和紫色土丘陵區衡陽盆地為例,分析論述了衡陽盆地地表水資源脆弱性主要表現在:降水資源時空分佈不均勻;不利於水土保持的地表物質組成和植被覆蓋;耗水量大的農業種植結構以及調蓄水功能弱的農田水利工程體系等方面。Effects of mulching on grapery soil in arid desert area
乾旱荒漠區不同覆蓋對釀酒葡萄園土壤的綜合效應研究To lily flower of high quality characteristic production in qingyang carry through plastic pellicle mantle and maize straw pole mantle in live through the winter, analysis soil water resume, ground temperature change character and different mantle material water, heat resource to the effect of upgrowth period, growth measure and output inscape of lily flower
摘要通過對慶陽優質特色產品黃花菜越冬期進行地膜覆蓋和玉米秸稈覆蓋,分析越冬期土壤水分損耗、早春地溫變化特徵,以及不同覆蓋材料水、熱資源對黃花菜發育期、生長量、產量構成要素的影響。A loose mulch acts on the surface as an insulator.
疏鬆的覆蓋物在土壤表面起了隔熱的作用。Through the study of three factors of a, s, c in lunan area, we have found that, under the modem natural conditions, the actual height of stone pillars is still increasing at the rate of 15. 77mm / ka, and their visible height 639. 6mm / ka, moreover, soil layer which is one of the most important driving forces for the heightening of stone forest is quickly becoming thiner and thiner at the speed of 623. 83mm / ka
同時,研究也表明,土壤co :的最大濃度主要出現在土下60一120cm ,土壤水的含量在土下60一80cm處也較大,由此決定了土下最大溶蝕強度主要分佈在土下150cm內,包氣帶強溶蝕循環帶的下限約在土下iom處。因此,在厚達數百米的路南群的覆蓋之下,是不可能發育石林的。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。4 ) soil nutrient of leguminosae also higher than non - vegetation soil ; while organic matter and available k increased, there was no significant change in total n ( it increased slightly ) ; available p and soil ph decreased
4 )豆科植物較無植被覆蓋地,土壤養分朝著良性循環轉變。土壤有機質、速效鉀含量提高,全氮含量稍有增加,速效磷含量降低, ph值有所下降;這些變化主要發生在土壤表層。( 3 ) compared with bare soil, income of net radiation declined, apparent heat weakened and latent heat exchange were almost disappeared on the soil surface with film
( 3 )薄膜覆蓋于土壤表面后,與未覆蓋的土壤相比,地表凈輻射r _ n收入下降,顯熱交換p減弱,潛熱交換le趨于零。Milly p c d. a simulation analysis of thermal effects on evaporation from soil [ j ]. water resour. res
沈榮開,任理,張瑜芳.夏玉米麥秸全覆蓋下土壤水熱動態的田間試驗和數值模擬[ j ] .水利學報, 1997 , 2 : 14 - 21This study has analyzed the soil nutrients under different vegetation types in the ziwuling area
摘要以黃土丘陵溝壑區的子午嶺次生林區為研究區域,研究了不同植被覆蓋對土壤養分狀況的影響。The study of influences of water - heat status in soil and crop transpiration changes under transparent polyethylene mulch
地膜覆蓋對土壤水熱狀況的影響及作物蒸騰量變化的研究The results showed that the vegetation types made a remarkable effect on the soil nutrient content
結果表明:不同植被類型覆蓋下,土壤有機質含量為喬木灌木草本農田棄耕地。Effects of cover and no - tillage on soil cellulose - decomposing bacterium population and cellulose decomposition intensity
免耕及覆蓋對土壤纖維素分解強度和纖維素分解菌的影響Determination of bhc and ddt in soil samples by ultrasonic extraction and gas chromatography
氣相色譜法測定覆蓋區土壤中的六六六和滴滴涕分享友人