退化程度 meaning in English
degree of degeneration
Examples
- Considering the deterioration series of populations , deterioration degrees led to morphological variations . with the increasing of grassland deterioration , vegetative tiller length and reproductive tiller length became shorter . medium sized bunch , small sized bunch , reproductive tiller percentage , reproductive tiller number were reduced
退化系列种群的形态变异随退化程度而异，营养枝和生殖枝长度随着退化的加重枝条长度变短，中、小株丛减少，生殖分配减少，生殖枝数量减少。 - In original and jamming slightly vegetation , because dead roots , branch and leaves back to soil , soil organic matter higher , soil available phosphorus higher , too ; chemical and physical characters of soil were stabilization . the reason were original vegetation have more species and structure of community was stable . the degradation of fertility and structure of soil in secondary vegetation was influenced by change with structure and form of community
在人为干扰小的原生性森林，植物种类丰富，群落结构稳定，植物死根系和枯枝落叶全部回归土壤，土壤有机质含量高，养分呈有机态为多，故有效磷较高，土壤理化性质较稳定；次生植被群落土壤结构和肥力的退化是由于群落组成和结构的改变导致枯枝落叶成分和土壤发规白山地还小问沙消民俗一非定俗地征王卿乔忡旺w比收财育环境差异而引起，次生植被土壤的退化状态随植被退化程度不同而有差异。 - On this basis , adopt the plural linear regression method , regard peasant ' s per capita income as the dependent variable , per capita agricultural land area , unit agricultural land area chemical fertilizer use amount , agriculture total value account for gdp proportion and land degradation the index data ( land degradation fictitious variable , land degradation percentage and land degradation the array variable of the degree ) as the independent variable
在此基础上，采用多元线性回归方法，以农民人均收入为因变量，人均农业用地面积、单位农业用地面积化肥使用量、第一产业总值占gdp比例和土地退化指标(土地退化与否的虚拟变量、土地退化百分比和土地退化程度的序列变量)为自变量来分析。 - Abstract : the central southern shandong provence is a well - known region for its poverty , and the serious deterioration of its mountainous land is one of the key reasons . this paper , according to the research on the deterioration , inquires into the index system of evaluating the degree of deterioration , and proposes effective measures against further deterioration in this region
文摘:鲁中南山地是山东省山地丘陵区的重要组成部分，其地貌最大特征是山地集中、地势对比强烈.长期以来，因受不利的自然和人为因素影响，山区生态环境退化严重，社会经济发展缓慢，是全国有名的贫困地区.山区土地的严重退化是致其贫困的主要因素之一.通过分析研究鲁中南山地系统退化特点和退化机制，初步探讨了评价山地退化程度的指标问题，最后提出了防治鲁中南山地系统进一步退化的有效对策