查询词典 meadow

In the alluvial fan edge parts, mainly meadow marsh soil and meadow saline soil; this to the desert between, places the desert soil salinization and alkalization the main agricultural use value is not high.

在冲积扇缘部位，主要是草甸沼泽土和草甸盐土；由此至沙漠之间，则以盐化和碱化的荒漠土为主，农业利用价值不高。

The root biomass improved the soil infiltration rate and reduced runoff,the runoff and erosion amount of meadow brome decreased by 98.2%and 99.9% respectively,and the ability of water retention and soil-reinforcement of meadow brome was 5.2 and 1.5 times than that of corn.

同时，草地雀麦010 cm土层根系发达，地下生物量是玉米的2.88倍，可以显著提高自然降水的土壤入渗率，减少地表径流，使坡地年径流量与土壤侵蚀模数减少98.2%和99.9%，保水、固土能力是玉米种植的5.2倍和1.5倍，水土流失防治效果显著。

Higher Ca distributed in bulliformcell than in mesophyll cell and bundle sheath cell of dune reed, higher Mg distributedin mesophyll cell and higher K, Na and Cl distributed in sheath cell HigherNa and Mg distributed in mesophyll than in bulliform cell and bundle sheathcell of light salt meadow reed, and higher K, Ca and Cl distributed in itsbundle sheath cell. Higher Na and Mg distributed in bulliform cell than in mesophyllcell and bundle sheath cell of heavy salt meadow reed, higher K, Ca and Cl distributedin its mesophyll cell. This paper discussed the distribution conditions of theabove five ions in leaf cell of the four reed ecotypes and the meaning ofphysiological adaptation to habitat in detail.

沙丘芦苇的泡状细胞内Ca分布较叶肉细胞和鞘细胞高，叶细胞内Mg分布较高，在鞘细胞内K，Na和Cl布较高；轻度盐化草甸芦苇叶肉细胞内分布了较多的Na和Mg，在鞘细胞内K，Ca和C1分布较叶肉细胞和泡状细胞高；而重度盐化草甸芦苇泡状细胞内分布了较多的Na和Mg，叶肉细胞分布了较多的K，Ca和Cl；详细讨论了以上五种离子在不同生态型芦苇叶片内不同细胞类型的分布状况与环境适应的意义。

From May to October 2004, the seasonal changes of K, Ca, and Mg contents and accumulation in Calamagrostis angustifolia, the dominant species in the typical meadow anti marsh meadow communities of Sanjiang Plain, were studied.

2004年5-10月，对三江平原典型小叶章草甸和小叶章－苔草沼泽化草甸群落优势植物小叶章的K、Ca、Mg含量与累积的季节变化进行了研究。

Coniferous forest was further reduced,whereas Cyperaceae meadow and/or swamp meadow expanded ,indicating a drop in temperature.

针叶林进一步退缩，且冷杉在针叶林中的含量大于云杉，莎草草甸或沼泽草甸的规模扩大，气温进一步下降

With the deflected succession of aquatic ecotype plant functional group,the dominance of mesophytes and xerophytes increased,while the dominance of aquatic and hygric plants decreased. However,there are only planting crops in the reclaimed wetland. In the composition of plant biotype functional group,the hydrophytes reduced quickly with the deflected succession and the dominance of perennial herbs is mostly marked,and there are only annual herbs in reclaimed wetland. Compared with primary swamp,the species diversity index of meadow is the highest,the swampy meadow follows,and the reclaimed wetland is the lowest.

植物的水分生态型功能群组成随湿地的逆行演替，水生、湿生类植物功能群的优势度不断减少，中生、旱生类植物功能群的优势度逐步增加，而在垦后湿地只有农作物；植物生活型功能群组成随湿地的逆行演替，水生草本迅速减少，陆生多年生草本增加占据优势，而在垦后湿地均为一年生草本；湿地植物物种丰富度、多样性指数由原生沼泽、沼泽化草甸到草甸依次增加，草甸为最大值，而垦后湿地则最低。

This results indicated that peashrub shrubland created a favorable N condition for its invading the meadow and being invaded by birch forest, and played a important role in altering the successional direction of meadow→peashrub shrub land →birch forest.

尽管箭叶锦鸡儿灌丛植物叶片与凋落物中全N、全P浓度在大多数取样点上都低于硕桦，但表层土中全N浓度高于硕桦和草甸，且其土壤有机质的供氮能力以及维持氮素能力都高于硕桦林和草甸，表明，锦鸡儿灌丛为侵入草甸和硕桦入侵提供了良好的养分条件，在该演替序列的发展过程中起了一定的推动作用。

The objectives of the study were to: 1 reveal the responses of vegetation and soil to degradation by investigating community characteristics and soil physic-chemical properties; 2 quantify the contributions of human factors and natural factors and the relationship among the factors by analyzing the variation of each factor in past decades; 3 understand the succession of fenced undegraded meadow, artificial pasture, semi-artificial pasture and degraded meadow, and to 4 provide suggestions for restoration and rehabilitation of the degraded rangeland in the region.

本项研究旨在通过对黄河源区退化高寒草甸的植物群落特征和土壤特征调查，揭示植物和土壤养分对土地退化的响应；对源区人口及牲畜数量和国内生产总值，气候变化特点等因子的分析，量化人为干扰因子和自然因子的贡献率以及各因子之间的数量关系；以及对草地退化驱动力分析以及原生草地植被封育、人工草地、半人工草地的自然演替变化规律的研究，为高寒草甸退化草地恢复与重建提供科学依据。

That was a gold meadow beside the valley of Xia Te river, we walked along the river, strong sunshine sprinkled like fleck at the small path through dense pine trees, there were some unknown wild flowers in the meadow, there were some moldered old trees falling down roadside, the bare roots seemed telling the waste of time and history.

沿夏特河谷边金黄色的草甸循溪而上，太阳透过密密的松林，将烈烈的光斑斑驳驳的撒在小径上，空地上零星的开着不知名的野花，时不时能见到早已腐朽的老树横倒在路边，裸露的根像在诉说着那万年的蹉跎与沧桑。

That was a gold meadow beside the valley of Xia Te river, we walked along the river, strong sunshine sprinkled like fleck at the small path through dense pine trees, there were some unknown wild flowers in the meadow, there were some moldered old trees falling down roadside, the bare roots

沿夏特河谷边金黄色的草甸循溪而上，太阳透过密密的松林，将烈烈的光斑斑驳驳的撒在小径上，空地上零星的开着不知名的野花，时不时能见到早已腐朽的老树横倒在路边，裸露的根像在诉说着那万年的蹉跎与沧桑。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。