1)impoverished environment贫瘠环境
1.This study explored the effect of the enriched and impoverished environment on spatial and emotional learning and memory of the aged female mice(Mus musculus Km)and its underlying mechanism.本研究探讨了丰富和贫瘠环境对老龄雌性昆明小鼠(Mus musculus Km)空间学习记忆和情绪学习。
英文短句/例句
1.Effects of Enriched and Impoverished Environment on Learning and Memory of Aged Female Mice丰富和贫瘠环境对老龄雌性小鼠学习记忆的影响
2.Effects of enriched environment and impoverished environment on brain function of premature rats after hypoxic-ischemic brain damage丰富与贫瘠环境对新生鼠脑损伤后脑功能的影响
3.Saharan desert ants of the genus Cataglyphis have to travel long distances to discover food in their impoverished, sandy environment.撒哈拉沙漠的箭蚁不得不在贫瘠的沙质环境中长途跋涉寻找食物。
4.a hostile climate; an uncongenial atmosphere; an uncongenial soil; the unfriendly environment at high altitudes.非常不宜人的气候；不利于生活的空气；贫瘠的土壤；高海拔地区的不利环境。
5.The barren land has been turned into fertile fields.贫瘠的土地已改成良田。
6.The land is barren on the coast.海边的这片土地很贫瘠。
7.The desert is barren land.沙漠是贫瘠的土地。
8.the barren upland of central Spain西班牙中部的贫瘠高地
9.The soil in that county is very poor.那个县的土壤十分贫瘠。
10.A tract of unproductive land, often with a scrubby growth of trees.Often used in the plural.贫瘠地，不毛之地一块贫瘠的土地，通常树木低矮。常用复数
11.poor food, light, soil劣质食品、 微弱的光线、 贫瘠的土壤
12.Eke a bare existence from farming in an arid area.在贫瘠的地区耕作以勉强度日
13.Impoverish the soil by overuse.过度耕作而使土壤变得贫瘠
14.Plants can't grow well in the infertile land.在贫瘠的土地上庄稼长不好。
15.The ground in this part of the country is poor and stony.这个地区的土地贫瘠多石。
16.thickets of indigenous trees...on uncultivable land- C.B.Palmer.贫瘠的土地上生长的灌木丛-C.B.帕默。
17.To exhaust the fertility of(land) by continuous cultivation of crops.因持续不断种植庄稼而使（土地）贫瘠
18.Sometimes the land is too poor to grow anything on.有时，土地太贫瘠了，无法生长作物。
相关短句/例句
impoverishment[英][im'p?v?ri?m?nt][美][?m'pɑv?r??m?nt]贫瘠化
1.Soil erosion is a main factor of soil degradation of purple soil sloping field in the Three Gorges reservoir area,and therefore it leads to impoverishment of soil nutrient.土壤侵蚀是三峡库区紫色土坡地土壤退化及土壤养分贫瘠化的主因。
2.At present,there are kinds of different impoverishment to farmland soil in Fujian whose organic matter is not high especially the orchard soil,nitrogen and potassium is most serious,phosphorus and available phosphorus is apparently impoverished in some low Fertilizer soil such as the new fruit soil,while available potassium sees no impoverishment.目前福建省山地丘陵地区农地土壤存在不同程度退化,有机质普遍不高,利用类型为果园的土壤有机质多呈贫瘠化;全氮和全钾贫瘠化最为严重;全磷、有效磷在熟化度较低的土壤如新果园土壤呈明显贫瘠化,有效钾在闽北闽东南都未呈贫瘠化。
3)sterile soil贫瘠土壤
1.Putting soil micro algae which were native to fertile soil into sterile soil, and then culturing them under dark and light conditions separately, the results showed: under dark condition, soil micro algae almost come into dormant state or dead in 30days; under light condition, micro algae increase at some degree in 30 days, and then breed rapidly.将自然条件下肥沃土壤中的微藻接种到贫瘠土壤中 ,分别在黑暗和光照条件下进行培养 ,结果显示 :黑暗条件下的微藻在 30d内进入休眠状态或死亡 ;在光照条件下 ,微藻的数量在第 30d以后迅速增殖 ,随着藻类的生长 ,土壤pH值也发生了一定变化 ,且藻类数量的变化与土壤有机质和土壤有效磷的变化呈极显著相关 ,说明土壤微藻能改善贫瘠土壤的微生态环境和提高土壤肥力 ,上述结果可为藻类用于农业生产和沙漠治理等提供理论依
2.The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro-algae , soil pH value , soil organic matter soil available phosphorus and soil nitrogen.本文首先对肥沃土壤与经高温焚烧后的贫瘠土壤中的微藻数量、土壤pH值、有机质含量、有效磷含量和全氮量进行比较研究，然后将包含微藻的绿化苗圃地肥土按不同比例接种进入贫瘠土样中，分别在光照条件和黑暗条件下进行培养，在0天、30天、60天和90天分别检测以上指标，比较有光条件和无光条件下，即有藻条件和无藻条件下贫瘠土样所发生的变化，并分别对微藻数量的变化与土壤pH值、有机质含量、有效磷含量和全氮量的变化之间做相关性分析，以评估肥沃土壤中的微藻接种进入贫瘠土壤后的生长情况以及对贫瘠土壤的改良作用。
4)Depletion[英][di'pli:??n][美][d?'pli??n]贫瘠化
1.Study of Soil Nutrient Depletion of Chongqing Based on GIS;基于GIS重庆市土壤养分贫瘠化研究
2.Soil nutrients depletion trend under 4 commercial forests (Cunninghamia lanceilata, Phyllostachy pubescens, Camellia sinensis and fruit forest) were measured by comparison with broad leaved forest.以常绿阔叶林为参比 ,分析了红壤上人工杉木林、毛竹林、茶园和果林 4类商品林地土壤养分贫瘠化状况。
5)coastal infertile hill land贫瘠山地
6)Barren resistance耐贫瘠性
延伸阅读
贫瘠土地不肥沃：开发贫瘠的山区。
