soil quality index 中文意思是什麼
soil quality index
解釋
土壤質量指數-
At the same time the study analyse the structural system of the index and it ' s weight with the ahp, and choose soil quality, soil thickness, the content of organic matter, terrain, elevation and the ration of irrigated guarantee as gradation index and choose soil quality, soil thickness, the content of organic matter, terrain, elevation, the ration of irrigated guarantee, the condition of traffic, the distance from the central city, the scatter degree of field, the neat degree of field, loss of water and erosion of soil and land contamination as classification index. at the same time the study emphasize the effect of the condition of ecological condition and environmental contamination
採用層次分析法對該區域農用地分等定級的指標體系及其權重進行了研究，選擇表層質地、土層厚度、有機質含量、地形、海拔、灌溉保證率等6項指標參與分等評價，選取表層質地、土層厚度、有機質含量、地形、海拔、灌溉保證率、對外交通狀況、距市中心距離、田間道路狀況、田塊分散度、地面平整度、水土流失、土地污染等13個因子分指標區進行定級評價，強調了生態條件及其環境污染狀況在農用地分等定級中的作用。 -
The results indicated that as the intensity of sward cleavage increased, elymus nutans and other plants that had high requirements in soil aeration and resource space presented an increased competitive edge and the species that had low requirements in soil aeration and resource space presented an opposite picture ; low - intensity sward cleavage could help increase species diversity to a certain extent, but the diversity index appeared to decline as a whole as the cleavage intensity increased ; the effects of sward cleavage on functional groups of the vegetations showed in such manner as e. nutans - represented grasses increased in their composition with the intensity of sward cleavage raised, and sedges and forbs decreased in their compositions with the intensity of sward cleavage raised ; sward cleavage showed a significant improving effect on primary productivity of the meadows and was capable of increasing the proportion of quality - grass biomass to the total plant biomass ; sward cleavage could be independently employed as an effective measure to rehabilitate and improve alpine - meadow grasslands and thus played a basic and key role in the technical combination aiming at establishing hay fields characterized by e. nutans
結果表明：垂穗披堿草等對土壤通透性和資源空間要求較高的物種，競爭力隨劃破強度的增加而上升，而對土壤通透性和資源空間要求相對較低的物種則相反；輕度劃破干擾對提高物種豐富度具有一定的促進作用，但多樣性指數則總體上表現為隨劃破強度的增加而呈下降的趨勢；劃破干擾對植被功能群的影響表現為以垂穗披堿草為代表的禾草類組分隨干擾強度的增加而顯著上升，莎草類和雜類草組分隨干擾強度的增加而顯著下降；劃破干擾對草地初級生產力的提升具有顯著的促進作用，且可顯著增加植物總量中優質牧草的比重；劃破干擾可獨立作為高寒草甸類草地恢復與改良的有效措施，在定向培育垂穗披堿草型割草場的技術組合中具有核心和基礎性的地位。 -
2. the results showed that the contents of cach - extractable soil p, and soil test phosphorus ( olsen, bray, mehlich - 3 ) and algae - available p contents ( naoh - extractable soil p ) in the soils correlated significantly with the contents of ortho - p, particulate p and bioavailable p in runoff, respectively, which were feasible to be used as primary indices to evaluate of agriculture p impacting on surface water quality. the results also showed that the relationships between the phosphorus sorption of soil index ( psi ), and the degree of soil saturation with phosphorus ( dpss ) and the contents of ortho - p, particulate p and bioavailable p in runoff reached significant level, respectively
黃壤旱地土壤易解吸磷（ cacl _ 2 - p ） 、土壤有效磷（ olsen - p 、 bray - p 、 mehlich - 3 - p ）或藻類可以利用的土壤磷（ naoh - p ）與地表徑流中顆粒態磷、生物有效性磷和磷酸根態磷之間均存在顯著的相關性，在一定的程度上可用cacl _ 2 - p 、 olsen - p作為指示黃壤旱地地表徑流中磷潛在流失的預警指標，來判斷旱地存在磷素非點源污染的可能性。 -
Adopt the mean of analyzing the factors which influence the output of the crops to quantity and determine the factors, assess the correlation among the grading factors in the units and calculate the point value of these factors ; determine the weigh value of the factors. ten factors, which are content of organic matter, thickness of soil layer, quality of soil, pickled degree of land, condition of irrigation and state of shelter belt, the degree of land " s leveling, central focus region ( focus region location ), utilization method of soil, are chosen as grading index at last
本文採用因素法定量化評價各地塊定級單元的相關性和權重性，最終選定了有機質含量、土層厚度、土壤質地、鹽堿化程度、排水能力、灌溉保證率、防護林完整度、條田平整度、中心區位，土地利用方式等因子作為定級的指標，使用了加權加和因素法進行了的定級計算，逐步完成了農用地質量情況的評價，劃分出了級別。 -
In this paper, soil microbial ecological characteristics and their influence mechanism in red soils contaminated with heavy metals were studied using the incubation experiment, and field investigations. some sensitive microbial ecological indexes and kinetic parameters were brought forward under the single pollution of cadmium or lead, and cadmium - lead - copper - zinc compound pollution ways, respectively, which will be useful reference for bioremediation, environmental quality evaluation and building up alert index systems in red soils polluted by heavy metals
本項目選擇紅壤作為研究材料，採用室內培養、野外調查以及相關數學分析相結合的研究方法，探討了重金屬污染紅壤的微生物生態特徵及其影響機制，提出了鎘、鉛單一污染和鎘、鉛、銅、鋅復合污染下紅壤微生物學敏感性生態參數及其動力學變化特徵，為重金屬污染土壤的修復、環境質量評價以及建立有效的土壤重金屬污染預警指標體系提供有益的參考。 -
We hold the 40 advanced italian arrow - shaft looms and a 180 printing and dyeing producing line, and we successfully developed the special fabric as followed : flame retardant, flameproof and heat - insulation series, anti - static series, oil resistance and water repellency series, acid and basic resistance series, radiation protection series, dustproof and soil release series, anti - bacteria and odor proof series, without formaldehyde and permanent press series, etc. the features and technical index of our products have reached or exceeded national standard, and that these all have been tested, authenticated and certificated by the national supervising and inspecting center for labour protection articles and shaanxi supervising and inspecting center for textiles quality
在經營常規面料的基礎上，努力致力於新產品的研發推廣和應用，公司以控股形式擁有義大利劍桿織布機40臺， 180印染加工生產線一條，現已開發出：阻燃防火隔熱系列抗靜電系列抗油拒水系列防酸堿系列防電磁波輻射系列防塵易去污系列抗菌防臭系列無甲醛免燙系列等。產品的性能指標均已達到或優于國家標準，並由國家勞動保護用品監督檢驗中心和陜西省紡織品質量監督檢驗中心測試鑒定認可。 -
Spatial - temporal variation of integrated soil fertility quality index in the peri - urban suzhou
蘇州城市邊緣帶土壤綜合肥力質量時空特徵 -
Therefore, tension tests of geogrids, pull - out tests between geogrids and expansive soils or sands, the related geotechical tests of soil " s properties, and model tests of soft ground improvement, were carried out for obtaining the engineering properties, quality index of geogrids, interaction parameters of friction characteristics between reinforcement and soils, and the affecting degree of factors influencing the lateral displacement ( pile ) rate during the construction of embankment filling with ( residual ) settlement considered restrictively
本文以國內外大量研究成果為基礎，集中力量開展控制變形的特種土作填料的物理改良技術和加筋墊層在控制沉降軟基處理的作用研究，其核心是筋土界面相互作用關系。為此，進行了為確定土工格柵工程特性和尋找質量控制指標的拉伸試驗、筋土界面設計參數合理獲取的拉拔試驗及其配套土工試驗、軟基上路堤填築過程中坡腳的側向位移及其速率的影響因素的室內模擬試驗。
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