草地土壤 的英文怎麼說
中文拼音 [cǎodetǔrǎng]
草地土壤
英文
gra land soil-
The rhizosphere microflora dynamics of bacteria, actinomyces, fungi and four bacterial physiological groups of kentucky bluegrass under different quality of illumination were studied by adopting selective culture medium to explain scientifically response regular of this grass to different illumination condition
摘要研究了草地早熟禾在不同光照條件下其根際與非根際細菌、真菌、放線菌以及氨化細菌、硝化細菌、好氣性纖維素分解菌、固氮菌生理類群的區系動態變化,擬從根際土壤微生物數量變化方面來闡述草地早熟禾對不同光照條件的響應規律。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。Characteristic of moisture and salt dynamic in saline - alkalized grassland of songnen plain during thawing period
松嫩平原鹽堿化草地消融期土壤水鹽運移特徵Vegetation dynamics and soil characteristics of different period abandoned land was conducted in typical steppe at xilinguole league and meadow steppe at hulunbeier league, inner mongolia. the results showed : the function community of annual plants, perennial rhizornatous grasses and perennial rosette grasses were appeared at different succession stage of abandoned land in typical steppe and meadow steppe
本試驗分別在內蒙古錫林郭勒盟典型草原帶和呼倫貝爾盟草甸草原帶對不同撂荒年限的撂荒地植被動態及土壤特性進行了研究,目的是探討草原區撂荒地植被演替的規律,為撂荒地植被的重建提供理論依據。Through the analyses of characteristics of gully thalweg and soil erosion in upland and gully land, sediment sources in small watershed, sediment yield relationship between upland and gully and ecological functions of vegetation corridor, it is considered that vegetation corridor combined with land preparation measures may block runoff and sediment from upland and reduce the amount of soil erosion in a watershed by 54. 5 % ~ 77. 0 %
摘要在分析黃土高原地區的溝沿線、溝沿線上下溝間地和溝谷地土壤侵蝕特徵、小流域泥沙來源、坡溝侵蝕產沙關系的基礎上,結合廊道的生態功能和以往的研究結果,認為在溝沿線的上部建立草灌與整地工程措施相結合的植物廊道,來攔蓄阻截溝間地的來水來沙,可使流域的土壤侵蝕量減少54 . 5 % ~ 77 . 0 % 。Dynamic change and environmental effects of soil microorganism in marsh soils from carex meyeriana wetlands in changbai mountain
長白山溝谷濕地烏拉苔草沼澤濕地土壤微生物動態及環境效應研究Compared to stipa bungeana grassland and fallow ground, the volume weight was smaller, total porosity and capillary porosity were higher, but non - capillary porosity was lower. 2. achnatherum splendens height increased slow in the initial stages, fast from june to august and slow again after that
芨芨草草地土壤容重較本氏針茅草地和裸地小,各層的總孔隙度和毛管孔隙度明顯高於本氏針茅草地和裸地,但非毛管孔隙度較本氏針茅草地和裸地低。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。Impacts of high - parallel sand - barrier on soil organic matter contents and particle composition of serious desertified grassland
平行高立式沙障對嚴重沙化草地土壤有機質含量及顆粒組成的影響Meanwhile, their planting sites were also studied different herbages were found to differ in their soil water use intensities and depths and thus the proportions and site conditions for their mixed seeding were determined
同時對其立地條件進行了研究,結果表明不同牧草對立地土壤水分利用強度及空間分佈有很大的差異,提出了不同牧草混播比例及立地范圍。The comparison of the effect on the water propertles of alkaline - saline grassland between biological and chemical amel iorates
化學改良對重度鹽堿化草地土壤水分特性影響的比較研究The grass irrigation system means that, under the certain condition of climate, soil and planting technology, supplying water in time, watering times and hours for higher output were guaranteed
摘要牧草灌溉制度是指牧草在一定氣候、土壤和栽培技術條件下,為保證飼草料種植地土壤水分的適時供給並獲得穩產高產所確定的灌溉定額、灌水定額、灌水次數和灌水時間。The results were as follows : 1. the seasonal and vertical variation of soil water content was significant
研究結果如下: 1 、芨芨草草地土壤含水量季節變化和垂直變化較為顯著。Heat preservation and heating of soil lawn, greenbelt
足球場草坪公共綠地土壤保溫Based on the rainfall data in autumn, an analysis of synthesis profit, such as autumn rainfall utilized in spring, the change of soil moisture, water storage variation in qinghai lake and so on, of the artificial precipitation is made
摘要據2001年秋季人工增雨資料,結合歷年秋季降水資料,從秋雨春用、影響地下水位涵養、青海湖水量盈虧等方面分析了秋季人工增雨的綜合效益;並著重分析了秋季降水與環湖地區土壤水分貯量以及第二年春季環湖天然草場土壤墑情、牧草返青時間、生長狀況及產量的關系。Spatial pattern of soil chemical properties in degraded sandy grassland under post - grazing natural restoration in horqin sandy land
放牧干擾后自然恢復的退化沙質草地土壤性狀的空間分佈Soil features and control strategies for development of natural grassland in tongliao city
通遼市天然草地土壤性狀特徵及整治對策Effect of grazing intensity on soil organic matter and organic carbon in alpine - cold artificial grassland
放牧強度對高寒人工草地土壤有機質和有機碳的影響The fractal dimension of the mixed forests were lower than the pure forests and grassland, and the soil weight diameter of the mixed forests were higher than the pure forests and grassland, which indicated that the mixed forest had best soil structure property in stability infiltration and water - holding ; the soil total porosity and the soil noncapillary porosity were different greatly between forest types, but the soil capillary porosity had little differ
混交林分分形維數均低於單純林與荒草地,土壤重量平均直徑均高於單純林與荒草坡,說明混交林土壤結構穩定性最好,土壤通透性較好,具有較高的水土保持功能;不同林分類型之間,土壤總孔隙度與非毛管孔隙度差異較大,而毛管孔隙度的差別較小。During the study period, the soil nutrient of arable land and grassland reduced greatly and that of forestland changed slightly. the grassland has the highest soil nutrient, while the arable land has the lowest soil nutrient. as a consequence, the land use change in changling county in the past two decades leads to decrease in the net soil nutrient, as well as the deterioration of regional ecological environment.
20年來,耕地的養分水平下降很大,草地的養分水平退化明顯,林地土壤養分含量變化不顯著; 20年間林地和耕地的土壤退化程度有所緩和,但不明顯;各種土地利用類型的養分水平差異如下:草地林地耕地,說明了退耕還林還草的必要性。分享友人