fertility evaluation 中文意思是什麼

fertility evaluation 解釋
土壤肥力評價
  • fertility : n. （opp. sterility）1. 肥沃，豐饒；肥力，肥（沃）度；（土地的）生產力。2. 【生物學】能育性，繁殖力。3. （思想等的）豐富。
  • evaluation : n. 1. 估價，評價。2. 【數學】賦值，值的計算。
  1. Based on the principle of significant effect of soil fertility factors on forest growth, soil physical factors ( natural water content, bulk density, total porosity, capillary porosity, aggregate degree, coarse silt and physical clay ), chemical factors ( om. total n, alkali - hytrolyzable n, total p, humus and ha / fa ) and biological factors ( urease, acidphosphotase, invertase and microbes ) were selected as evaluation index system of soil fertility. applying principal component analysis, soil ifi of subalpine coniferous forest was calculated

    從土壤物理、化學、生物學三方面出發，建立了川西亞高山針葉林不同演替階段土壤肥力評價指標體系，應用主成分分析，計算出不同演替階段土壤肥力綜合指標值（ ifi ） ，各演替階段大小順序為： 10年生雲杉林地跡地原始林地次生樺木林地30年生雲杉林地20年生雲杉林地50年生雲杉林地60年生雲杉林地40年生雲杉林地。
  2. Compositional proportion of soil characteristic microaggregates and soil fertility evaluation

    土壤特徵微團聚體的組成比例與肥力評價
  3. Comprehensive evaluation of soil fertility for cultivated land based on gis and soil basal niche - fitness model

    土壤基礎生態位適宜度模型在耕地土壤肥力綜合評價中的應用
  4. Research progress in the integrated evaluation of soil fertility

    土壤肥力綜合評價研究進展
  5. Takeing drought - resistant index and drought - resistant coefficient as evaluation indicators, also considering their fertility and stability of yield, germplasms that showed fine character were rongjiang cihong, luodian juhuang, wangmo huang, ziyun jianzuihong, wangmo mashan hong, ziyun huang and so on

    以抗旱系數和抗旱指數為主要評價指標，兼顧其穩產性和豐產性，表現優良的種質有：榕江刺紅苞谷，羅甸桔黃苞谷，望謨黃苞谷，紫雲尖嘴紅包穀，望謨麻山紅苞谷，紫雲黃苞谷等。
  6. All of theses database was integrated into a land information system, which can be used to land evaluation and land use analysis. the second part is the application of soter land information system in land evaluation, based on water balance model watsat, crop simulation model ps 123 and ales ( automated land evaluation system ). the handan land evaluation model was built in ales based on expert knowledge and farmer s " experiences, it includs three decision trees, namely soil erosion risk, soil water condition and soil fertility

    以邯鄲地區1 25萬soter土壤土地數據庫為基礎，探討了土壤參數區域化問題，並利用watsat區域水分平衡模型，研究了邯鄲地區區域水分平衡：大部分地區土壤水分滿足夏玉米生長需求， （ suff ）值為0 . 8 - 1 . 0 ，非常適宜；部分地區如大名地區、邯鄲和永年部分地區、涉縣溝谷坡梁地區土壤水分適宜夏玉米生長， suff值0 . 4 ? 0 . 8 ；不適宜地區， suff值0 . 2 ? 0 . 4 ，主要集中於丘陵山區以及平原古河谷地礫石和粗砂分佈區。
  7. Using endogenesis and exogenous geographical points of soil phosphorus equilibrium as the two turning points in the s - type membership function, based on fuzzy mathematics, to evaluate the renewing status and fertility of xiongxian country ' s soil phosphorus system. the results are that complete p treat is the best, ck and - p are in the lowest, 1 / 2p mediates. for the sustainable fertilization strategy, 1 / 2p is the best scheme, according to the evaluation of various treatments " exogenous renewing coefficient of soil phosphorus

    利用模糊數學隸屬函數s型模型，把雄縣土壤磷素外源、內源地理平衡點分別作為上下兩個閾值，對該土壤磷素系統更新狀況和磷素肥力進行評價，全p處理土壤磷素系統更新狀況最佳，磷素肥力水平最高， ck 、 - p處理磷素肥力水平最低，土壤磷素系統更新狀況最差， 1 2p處理居中。
  8. The distribution types of soil nutrient may impact on the evaluation of soil fertility

    土壤中養分分佈類型涉及到對土壤養分的正確評價。
  9. Meanwhile, the evaluation has changed from a single aspect su ch as vegetation and soil to a comprehensive evaluation including deterioration of environment and degradation of soil morphology and fertility. studies on a theoretical basis and basic principle for restoration and reconstructions. the study on benefits and functions of a restorated ecosystem

    恢復與重建的生態系統功能與效益的研究，其效益評價由生物多樣性、水土保持功能、土壤養分、小氣候等單一方面轉向利用灰色系統理論及系統工程方法進行綜合評價。
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