現地土壤 的英文怎麼說
中文拼音 [xiàndetǔrǎng]
現地土壤
英文
in-situ soil-
After analyzing purple soil sampled from neijiang, leshan ofsichuan provinec and yuanmou of yunnan province, the contrast results of microbe quantity feature between surface and subsurface purple soil were obtained as follows. the content of soil organic matter, total and available nitrogen, phosphorous and potassium of surface was higher than subsurface, not relating to the type of purple soil and soil utilization way. the quantity of microbe _ bacteria, actinomyces and mould in surface purple soil was higher than subsurface, which indicated that the organic matter and airy condition in surface soil was more suitable for microbes growing. there was the same tendency in profile change of microbe quantity in purple soil located in temperate _ humid climate of sichuan basin in contrast with dry _ hot climate of yuanmou, yunnan. the nutrient situation of purple soil in sichuan basin shown that state of surface was better than subsurface, while in yuanmou of yunnan the state was on the contrary due to the degradation of surface soil
實驗室對四川內江、樂山和雲南元謀不同類型紫色土表層和亞表層微生物數量特性的比較分析表明:土壤有機質、氮磷鉀全量及其速效量均表現為表層高於亞表層,與紫色土類型和利用方式無關;三大類土壤微生物細菌、放線菌和黴菌數量均表現出表層高於亞表層,表明紫色土表層的有機質和通氣性優于亞表層,適宜於這三大類微生物生長;溫濕氣候條件下的四川盆地和乾熱氣候條件下的雲南元謀其紫色土微生物數量的剖面變化具有相同的趨勢,唯土壤營養狀況在四川盆地紫色土中表現為表層優于亞表層,而在雲南元謀紫色土中由於表層土壤的退化作用表現為亞表層優于表層的相反情況。The results showed in the paddy field the bacteria were predominated, in the dry land the proportion of fungi and actinomyces was distinctly higher than the other two kinds of soil, in the woodland abundant species of basidiomycetes were found ; the natural degradation speed was low, with the degradation the number and composition of microorganisms changed regularly ; when the c / n ratio was adjusted to 25 " ? 1, the degradation remnant ratio reduced 10. 67 % than the control
結果表明,水田以細菌為主,旱地中真菌和放線菌數量最多,林地中有大量的高等擔子菌;秸稈自然降解較慢,土壤微生物也隨著降解的進行而呈現一定的變化規律;當調節c / n比為25 : 1時,秸稈的腐解殘留率比對照組下降10 . 67 。 2But this additional food is only obtained by a great additional amount of labour ; so that not only an agricultural has much less leisure than a pastoral population, but, with the imperfect tools and unskillful processes which are for a long time employed ( and which over the greater part of the earth have not even yet been abandoned ), agriculturists do not, unless in unusually advantageous circumstances of climate and soil, produce so great a surplus of food, beyond their necessary consumption, as to support any large class of labourers engaged in other departments of industry
但是只有靠大量增加勞動,才能生產出更多的糧食,因此不僅農業人口比起遊牧人口來說空閑時間要少得多,而且由於長期使用不完善的工具和不熟練的技藝(在世界上很大一部分地區直到現在仍是這樣) ,除了在氣候和土壤特別有利的情況下,農民們生產不出超過自身消費量很多的余糧,因而供養不了大群從事其他產業的勞動者。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。Seven plots selected from wanglang reserve were distributed in different types of forest and at different altitude, and different plot has different microclimate. soil property, microbial population, soil nutrient content of forest soil were determined in wanglang natural reserve, from may to october 2002 to july 2003, the ecological distribution of three main groups, bacteria, actinomycete and fungi were determined in the forest soils by the cell enumeration methods. six kinds of physiological groups, including ammoniation bacteria, nitrification bacteria, nitrosification bacteria, aerobic autogenesis azotobacter, aerobic cellulose - decomposing bacteria and anaerobic cellulose - decomposing bacteria were enumerated by the most - probable number ( mpn )
2001年10月在王朗自然保護區內設立了3個定位研究樣地和4個臨時樣地,通過多次現場采樣與室內實驗分析,測定了白樺林、岷江冷杉林、紫果雲杉林、繡線菊-羊茅群落、羊茅群落及高山柳灌木叢等6種不同植物群落內土壤微生物三大類群數量、功能微生物數量、土壤養分,並在固定樣地內使用埋袋法進行了三個埋藏深度的凋落物分解袋試驗,初步研究了枝條、闊葉、針葉等凋落物組分在不同分解階段所含養分的動態變化。The elementary idea of the reference units method can be described as follows : firstly, by the setting of double series of reference units, we can control the highest and lowest land quality class of each village or town ; secondly, the class of the arable land will be get through the contrast between the arable land with the reference unit which has been selected in the same area, the difference in quality is the key factor to classify the land. the results show, 87. 6 % of the lands from i to iii distribute on alluvial and lacustrine plains, where the associated soils are mainly grey fulvo - aquic and calcareous concretions black ones. and 61. 4 % of them from iv to vi distribute on slightly rolling parts with mainly yellow - cinnamon soil developed from the diluvial and slope deposits
分等結果表明:臥龍區等的耕地中,有87 . 6分佈在沖積、湖積平原區,主要土壤類型是在河流沖積物上發育形成的灰潮土、在湖相沉積物上發育形成的砂姜黑土;等耕地中,有61 . 4分佈在壟崗區,主要土壤類型是洪坡積物上發育形成的黃褐土:而、等耕地集中分佈在丘陵區,主要土壤類型是殘坡積物上發育形成的粗骨性黃褐土,等別結果分佈總體上體現了不同地貌類型、土壤條件下耕地質量的差異。Utilization methods influenced aggregation degree of microaggregate of purple soil, the aggregation degree were in such order : grassland > forestland > garden plot > cropland, aggregation degree of microaggregate in soil developed from jas group was least, and that of j3s group was maximal
紫色土微團聚體團聚度受利用方式影響較大,團聚度次序表現為草地林地園地耕地,沙溪廟組發育土壤微團聚體的團聚度最低,遂寧組最高。The results are summarized below : 1 ) study on soil science indicates that soil granular structure is the focus adjuster for soil fertility and it affects the space, water - grasp, aeration and anti - erosion of soil. and the percentage of aggregate is one of the key index that decides the speed and extent of soil erosion, hardening and degeneration because the soil degeneration will first lead to the disappearance of crumb - structure. so it is very important that the physical course and character of soil in different land use pattern are realized
現將主要結果摘要如下: l 、士壤學研究表明,團粒結構是土壤肥力的中心調節器,影響著土壤的空隙性、持水性、通透性和抗蝕性;任何土壤的退化首先將表現出團粒結構的消失;團聚體百分比是決定土壤侵蝕、板結等物理過程速度和幅度的關鍵指標之一,了解不同土地利用和土壤管理方式的物理過程和性質相當重要。The main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north
實驗結果表明:粘粒粉沙比值能很好地指示粉塵堆積物的次生粘化作用;磁化率和全鐵很好地指示生物風化成壤作用; sr和rb sr比值能很好的指示生物風化成壤作用和淋溶作用;總有機碳( toc )含量的高低,在一定程度上反應了土壤發育過程中氣候和植被狀況的變化,指示著成壤過程中腐殖質化的程度; caco3含量的變化,可以反映了黃土古土壤形成時的風化成壤作用的強弱程度,指示成壤過程中的淋溶作用和次生碳酸鹽化作用;並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異,即渭河流域土壤的生物風化成壤作用、次生粘化作用和淋溶作用均表現出南部強于北部。6 diversity fragmentation and evenness of ecological landscape in fukang increase with more utilization and development. the change of landscape pattern about land utilization is mainly area variation of plantation and wasteland in pluvial fan and alluvial plain, the key influence factors are the dynamic of soil moisture and salinity under the development of water and land resource
6 、在阜康各景觀帶中,隨人為開發利用程度的增強,景觀多樣性、破碎度和均勻性增加;荒漠綠洲土地利用景觀生態格局的變化,集中體現在位於洪積扇與沖積平原的耕地和荒地面積變動上,關鍵影響因子是水土資源利用下的土壤水鹽動態變化。These measures include : rehabilitation of vegetation with preserving soil and water on the eroded infertile soils, the entrance to “ soil reservoir ” dredged by controlling with different eroded soil types, using “ soil reservoir ” of the upper reaches of the yangtze river bigger much more than the reservoir of the three gorges
充分調用「土壤水庫」實現長江流域防洪減災的措施應包括建立保土保水的地表植被系統,分類整治侵蝕劣地土壤,疏浚入滲「土壤水庫」的通道,以及重視調用一個比三峽水庫庫容大得多的「土壤水庫」 。The outcomes show that the sequence of soil erosion of types of land use in different regions is different and the sequence of soil erosion of types of land use in different periods of the same regions is uncertainty ; the occurred rate of soil erosion of new wasteland is higher than that of idle wasteland for years ; the occurred rate of soil erosion of grassland is higher ; the occurred rate of soil erosion of non - irrigated farmland is high and the soil erosion intensity of land used for construction is great during construction and becomes smaller after completion
結果表明:不同區域土地利用類型的土壤侵蝕序列各不相同,而同一區域不同時期土地利用類型的土壤侵蝕序列不確定;新出現的難利用地比長期閑置的難利用地土壤侵蝕發生率高;草地土壤侵蝕發生率偏高;耕地中旱地的土壤侵蝕發生率高;建設用地建設時土壤侵蝕強度大,而建成後土壤侵蝕強度小。Degeneration problems of karst soil fertility are mostly soil leanness, vegetation reduction, and natural environment erosion and rock desert
巖溶土壤肥力退化問題主要表現為土壤貧瘠、植被減少、水土流失和土地石漠化。In 0 - 200cm light dried layer was formed and can be recovered partly after rainfall, but beneath 200cm the serious perpetual dried layer has lower water content and larger thickness and is very difficult to be recovered in short period because of the special hydrological characteristics in the loess plateau where infiltration depth is about 200cm and could not percolate into deeper layer. ( 4 ) the landscape ecology in fuxian county shows that the two kinds of forest community have not declined
( 4 )富縣天然山楊林和天然遼東櫟林的景觀生態特徵表明,兩類森林群落沒有出現衰退的跡象,這說明森林群落合理的內部結構不會造成林地土壤水分的嚴重虧缺,其自然氣候條件可以滿足森林群落生存、發展的需要。In silking stage, the number of the 3 microorganisms were largest in loam and smallest in clay ; and the 5 enzyme activities were highest in loam and lowest in sandy loam
吐絲期, 3種質地土壤玉米根際微生物數量均表現為中壤最多,重壤最少; 5種酶活性均表現為中壤最大,砂壤最小。Evaluation of soil quality of arable land in cixi city, zhejiang, china
慈溪市耕地土壤環境質量現狀及其評價People have various views about whether it should exist or not and whether it is valid or not. this article emphasizes much on its necessity and significance of existence, analyzes its legal nature and validness, and tries to propose and promote some new laws and rules, with the aim to promote the development of international trade and sea transportation
本文從保函產生存在,發展的現實土壤入手,著眼于保函存廢的利弊權衡,重視保函在國際貿易與海事運輸中經濟價值,分析其法律性質和效力,試圖努力構想完善保函的立法及相應配套制度,以求揚長避短,促使海運保函更好地促進國際貿易和海運事業的發展。The aim of the research is to show a relationship between water quality in lake tai and local agricultural production according to the current soil phosphorus status, and to recommend a maximum accumulative application level of phosphorus fertilizers based on phosphorus adsorption experiments
根據現在土壤中磷的狀況所進行的研究目的是為了表明太湖水質與當地農業生產的關系,並且在土壤對磷吸收實驗中找到磷肥的用於土壤的最大使用水平。The results show that the majority of 7be is retained in the top one centimeter of soils, and the concentration of 7be decreases exponentially with soil depth. for the cultivated study field, the depth distribution of 7be is very similar to the undisturbed site when it is n ' t subjected to erosion or deposition. for the undisturbed, there is abroad peak in the 137cs profile close to the surface and the maximum concentration is found circa 2 cm below the surface
~ ( 137 ) cs在未擾動土壤剖面中主要分佈在0 5cm范圍內,同時在1 3cm的范圍出現一個~ ( 137 ) cs的相對富集層,在3cm以下隨土壤深度的增加呈指數遞減的趨勢; ~ ( 137 ) cs在農耕地土壤剖面中主要分佈在0 20cm范圍內,由於耕作活動的不斷擾動~ ( 137 ) cs的剖面分佈相對均勻。The results are as follows : the differences of microorganism quantity among different type of soil is the significant, so are the enzyme activity and soil nutrient
與健康林相比,出現生長衰退林地土壤樣品的養分指標、微生物和酶活性均有顯著程度的降低,表明土壤地力已出現嚴重衰退。分享友人