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In the survey 7 populations including 74 individuals of wintering Black-faced Spoonbills were found.

本次黑脸琵鹭的越冬调查历时3个月,共7个省,基本上覆盖了江苏以南的东部沿海主要湿地和主要的岛屿沿岸湿地。

The changes of water state,starch and soluble sugar contents in the leaves of 3 evergreen broadleaf plants of Celastraceae in Baoding were investigated.

该文研究了卫矛科3种常绿阔叶植物在保定越冬期间叶组织水分及可溶性糖、淀粉的动态变化。

In view of the fact that the O. t. dybowskii are in imminent danger, first, must take importance to protection of wintering areas;Next, must try our best to protect the important breeding areas;Finally, establishes a population including existing genetic diversity for reintroduction, thus enable it to get rid gradually is in imminent danger, achieves the bustard species protection the goal.

鉴于东方亚种的濒危境地,首先,要重视越冬地的保护;其次,要保护好重要繁殖区:最后,建立一个拥有现有遗传多样性水平的迁地保护种群,既可避免其遗传多样性的进一步丧失,又可为扩大野外种群的规模奠定基础,从而使其逐渐摆脱濒危境地,达到大鸨物种保护的目的。

Secondly, coving ground and buring can effectively postpone the searing and death of broad-leaved evergreen plants overground parts, and make those recover fast in spring.

而地面覆盖和埋土越冬有效地推迟了常绿阔叶植物干枯和地上部分死亡的时间,并且在春天较早进入恢复生长。

Now the studies about broad-leaved evergreen plants mainly focus on some singular elements experimentized in laboratories. The paper studies the effect of cultivation methods such as plastic canopy, shade canopy, coving ground with pine bark on cultivation environment in two year.

目前对常绿阔叶植物的研究主要集中在单因子和实验室内的研究,而本文通过2年的观察和实验,研究塑料棚、荫棚、地面覆盖等保护地栽培措施对栽培环境的影响,而环境的变化进一步影响常绿阔叶植物在冬季的越冬表现。

In this study, cultivation methods and treatments such as plastic canopy, shade canopy, coving ground, anti-transpirant-pretreated, pachobutrazol-pretreated, burying for overwintering is used on the several broad-leaved evergreen plants in Beijing including glossy privet, Japanese privet, Japanese holly "Convexa", evergreen euonymus "Cu zhi", wintercreeper euonymus, English ivy, leatherleaf viburnum, littleleaf box "Wintergreen", and star Jasmine.

在研究中,采用塑料棚、荫棚、地面覆盖、喷施抗蒸腾剂、多效唑、埋土越冬等措施和处理对北京地区几种常绿阔叶植物——女贞、日本女贞Ligustrum japonicum、皱叶荚蓬、龟甲冬青(Ilex crenata'Convexa)、'粗枝'大叶黄杨(Euonymus japonicus 'Cu zhi'),'冬绿'小叶黄杨(Buxus microphylla'Winter-green'),络石、洋常春藤、扶芳藤进行了实验。

Irrigation during over-winter promoted significantly N absorption and accumulation, increased N content in the plants at early stage (before 10, April) and final single stem weight, and reduced stem flowering percentage and florets per cyme, leading to an improved quality of rush stem. With the increased level of N application, N content and accumulation in plants, stem flowering percentage and florets per cyme were significantly increased.

越冬期灌水能显著促进植株对氮的吸收和积累,增加前期(10/4前)植株含氮量和收获期单茎干重,显著减少草茎开花率和平均每花序小花数,从而改善草茎品质;随着施氮水平的提高,植株氮吸收和含氮量相应增加,开花率及平均每花序小花数显著提高。

The experiment showed that it was difficult for Cynodon dactyl on overwintering because of serious lipid peroxidation in cell membrane, the enzyme activity and resistance declined at low temperature.

说明在低温胁迫下,狗牙根叶片细胞膜脂质过氧化较严重,酶活性降低,抗性下降,这是狗牙根越冬困难的主要原因。

Based on the weather data of geographical points and the phenological data of CBW, the single sine model that forecast the occurrence date of cotton bollworm is developed. By using year's data of Shihezi area, parameter of CBW emergence of overwintering generation, first generation and second generation in the Xinjiang region is built under the different low temperature. Based on the above research, the concepts, functional development temperature threshold and functional developmental degree-day, are put forward. Using the data of different station in the Shihezi area, the model is validated

基于地理点的气象数据和棉铃虫物候数据,建立了棉铃虫发生期预测的single sine 模型,利用石河子地区多年的数据,建立了不同发育温度条件下的新疆地区越冬代、第一代和第二代棉铃虫羽化的参数库;在此基础上提出功能发育起点和功能发育日度的概念并修订了模型,利用石河子地区植保站的数据,验证了模型的可行性。

Research advances on the biological and ecological characteristics of P.japonica are summarized in this paper, which includes the variation in elytra color polymorphism, life history, fecundity, appetite, predation, over-wintering habits, artificial rearing technique, and population dynamics under natur...

本文从龟纹瓢虫的生物学和生态学特性,包括色斑变型、生活史、繁殖、食性、越冬、人工饲养、田间动态以及在生物防治上的应用等方面概述了龟纹瓢虫的研究进展,提出进一步深入开展龟纹瓢虫的人工饲养技术、贮藏技术和色斑变型遗传机制等的研究,不仅可以更好地为农业生产服务,而且可以充实昆虫生态位理论的研究内容。

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