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越冬

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Through indoors control feeding and on-the-spot field observation,it's confirmed that Ectropis excellens Butler occurs five generations in one year. It overwinters in the form of pupal right under the tea plant's growing soil.

通过室内编号控制饲养、田间定点、控制观察,明确大鸢尺蠖在湖南长沙一年发生五代,以蛹在茶丛树冠下土内越冬,次年3月上、中旬羽化,交配产卵。

Macalla sp. has four generations a year in Shantou of Guangdong Province and the generations overlap. It overwinters as mature larva in the soil at a depth of 1-3 cm under tree crown or in fallen leaves from October to December.

橄榄锄须丛螟在广东汕头1a4代,林间世代重叠现象严重。10月中旬至12月中旬,老熟幼虫陆续下树入土在表土层1~3cm处或枯枝落叶层结茧越冬

Shenzhen mangrove can say is great reputation far sow, the global tourist that comes to Shenzhen now, several the mangrove that should go to littoral zoology park seeing coastal bank meandering, water bird in this live through the winter circle in the air the grand occasion of collect.

深圳红树林可以说是盛名远播,现在来深圳的国内外游客,都要去海滨生态公园看看沿海岸逶迤的红树林。在此越冬的数万只水鸟翔集的壮观场面。

Over 4000 black-necked cranes breed and over 6000 winter in Tibet every year.

每年在西藏繁殖的黑颈鹤数量在4000只以上;越冬的数量达6000多只。

The sedgemeadow was the most preferable one of Black-necked Cranes While the farmland the lea...

本文也对改善黑颈鹤越冬栖息地的管理和保护提出了一些建议。

From October 2004 to May 2005, flock size and composition of wintering black-necked cranes were studied using spot scanning technique at Napahai Nature Reserve in Yunnan province.

2004年10月-2005年5月,在云南纳帕海自然保护区采用定点扫描法对越冬黑颈鹤的集群类型和集群大小进行了观察。

After a nature reserve for black-necked cranes was established on the middle reaches of the Yarlungzangbo River, the number of black-necked cranes wintering there has increased each year, accounting for about 80% of the earth's total number of black-necked cranes.

雅鲁藏布江中游河谷地区黑颈鹤自然保护区建立后,到此越冬的黑颈鹤数量逐年增加,约占全球黑颈鹤数量的80%左右。

Blood lily is fairly hardy in warmer areas and can be over-wintered with a layer of mulch in the garden.

血百合是在温暖地区相当生命力很强,可以用一个在花园的覆盖层越冬

Therefore selection breeding of new cultivars with great ornamentalvalue and cold-resistant cultivars are very important Sexual crossing breeding and bud mutation selection breeding are conventional breedingmethods in Floribunda roses.

但因为其品种较为单一,且基本都依靠进口,缺乏具有我国自主产权的优良丰花月季品种,而且我国北方由于气温低,还没有可以广泛栽培并能露地越冬的品种,因此培育观赏性高的新品种和抗寒品种成为当前园林植物育种的热点。

Research areas include biological nitrogen fixation in sustainable production, nutritional value of clover and grass, plant pathogens and overwintering problems, feeding hygiene etc.

研究领域包括可持续生????的生物固氮作用、苜蓿和草的营养价值、植物病原体和越冬问题以及饲养卫生学等。

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