bottomland
英
美
网络 洼地; 泛滥地
COCA.25497
英英释义
noun
- low-lying alluvial land near a river
双语例句
- Higher water level leading to the lack of enough sunlight in spring is harmful for the germination of submerged macrophytes and the growth of spears. While, lower water levels could also cause the overgrowth or even the death of bottomland plants.
春季高水位导致水下光照不足，不利于沉水植物萌发和幼苗生长，夏季低水位导致水生植物露出水面，引起沉水植物的疯长或衰亡。 - Influences of bridge building on bottomland evolution in rivers
建桥对河流洲边滩的影响 - The ecological environment type can be classified into four types, hill grassland type, plain meadow type, seashore bottomland type and interstitial-meadow of farmland and woodland type.
生境类型可分为丘陵山地型、平原草甸型、滨海滩涂型和农林间隙地草地型四种类型； - The variability degree of soil moisture in three sands is in the order: sandy grassland>semi-mobile dune>inter-dune bottomland.
半流动沙地和丘间低地的表层与亚表层土壤水分空间结构差异较小，但土壤水分空间变异性都要高于沙质草场表层。 - The "dry drainage"& the method to discharge the surplus irrigation water and the groundwater with high salt content to the bottomland inside irrigation district, can decrease the discharged salt to the Tarim River and improve its water quality at the same time.
其中，“干排盐”&即将多余的灌溉水与高矿化度地下水排到灌区内部低洼地的自然排水积盐方式，是减少排入塔里木河盐量，提高塔河水体环境质量的有效途径之一。 - Reservoirs can be divided into several zones vertically in this region. The grain bottomland of upper T_1j~ 1 to T_1j~ 2_1 has better remaining intergranular hole and enlarged solution hole in contrast of the grain dolomite, and could be favorable reservoir.
纵向上区内储层具有明显的分带性，T1j~1～T1j~21的上部颗粒滩相对较发育的颗粒白云岩具有较好的残余粒间孔及扩溶孔，是良好的储层； - Through experiments on water mining in big caliber and level radial wells at the bottomland of Yellow River, the key technique and method for reasonable groundwater mining in fine grain aquifer at the downstream of Yellow River are discussed.
通过在黄河滩地利用大口径水平辐射井取水试验，探讨了解决在黄河下游细颗粒含水层合理开发地下水难题的关键技术和方法。 - One third of the import salt in the irrigation water drains to the Tarim River and others discharges to the lake or the bottomland inside or outside of the irrigation district.
随灌溉水进入灌区的盐分约有13排入塔里木河，其余排向灌区内、外的湖泊和低洼地。 - All the eco-system area in seasonal inundation area decreases except the area of gravel bottomland, which is significantly influenced by the variation of water level.
季节性淹水区内各生态系统除砾石滩地面积略有增加外，其他类型的面积均有所减少，受水位变动的影响较大； - Studying the evolving pattern of Dongting Lake and bottomland structure, dynamics and influence to Dongting Lake's function is very important to harness of Dongting Lake.
研究湖泊的演变规律、洲滩的结构、动态变化、以及洲滩对洞庭湖功能的影响，对洞庭湖的治理有着重要参考价值。