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Photosynthetic characteristics in leaves of Castanopsis hystrix saplings in Longyandong Forestry, Guangzhou, were studied during early summer and autumn under natural conditions by leaf gas exchange and chlorophyll fluorescence techniques.

用LI-6400便携式光合测定系统和PAM-2100便携式植物荧光分析仪分别在初夏和秋季测定了广州龙眼洞林场刺栲幼树叶片的气体交换和叶绿素a荧光参数。

Photosynthetic characteristics in leaves of Castanopsis hystrix saplings in Longyandong Forestry, Guangzhou, were studied during early summer and autumn under natural conditions by leaf gas exchange and chlorophyll fluorescence techniques.

用LI-6400便携式光合测定系统和PAM-2100便携式植物荧光分析仪分别在初夏和秋季测定了广州龙眼洞林场刺拷幼树叶片的气体交换和叶绿素a荧光参数。

The light saturation point of sun leaves in canopy was 400 μ mol photons m-2s-1, and the maximum net photosynthetic rate was 4-6 μ mol m-2s-1. These data showed that C. hystrix saplings are sun plants.

刺栲冠层阳生叶的光饱和点为400 μ mol photons m-2s-1，最大光合速率在4-6 μ mol m-2s-1之间，说明刺栲幼树保持阳生植物的特征。

Hystrix canopy declined slightly at the midday, suggesting the occurrence of reversible photoinhibition. Owing to the lower maximum net photosynthetic rate in sun leaves and the ability to effectively and consistently utilize the scattered light and/or transmitted light, C. hystrix saplings could survive low light intensity, grow well at the edge of the forest and in the understorey, and eventually become one of the dominant species in upper layer of the community.

刺栲冠层阳生叶的最大光合能力比较低，整个冠层叶能高效而稳定地利用散射和透射光，这些特征使得常绿的刺栲幼树能在林边或林下良好生长，较好地适应不同的光环境并成功渡过幼苗期，最终成为群落中的上层优势种。

Wuhan Wanlv Yuan Lin works limited liability company in the development of flower seedlings in a wave of sound came into being, in 2002, in the mountains of the hinterland of the core 168 acres of land lease (20 years), 1.5 million yuan investment, and cultivate a large number of osmanthus, Kwong Yu-lan, Michelia, camphor, Liriodendron chinense, Koelreuteria paniculata, cedar, DU Ying, holly, weeping willow, Xianghua Huai, Bibo, Coral, Hongye privet, Turtle Cove holly, privet Golden LEAF, safflower Following the wood, cuckoo Nearly 40 varieties, such as the green color of seedlings and saplings, accepting the schools, businesses, residents and community greening projects, such as nursery stock sales by peers and the owners won.

武汉万绿园林工程有限责任公司在花卉苗木发展的一片浪潮声中应运而生，2002年，在株山核心腹地租赁土地168亩（年限20年），投资150万元，培育了大量的桂花、广玉兰、含笑、香樟、马褂木、栾树、雪松、杜英、冬青、垂柳、香花槐、碧柏、珊瑚、红叶女贞、龟背冬青、金叶女贞、红花继木、杜鹃等近40个品种的绿化工程大苗及色块苗木，在承接的学校、企业、居民小区等绿化工程和苗木销售中受到了同行和业主的好评。

The saplings of tree species Schima superba, Castanopsis fissa and understory shrub species Psychotria rubra, Ardisia quinquegona were grown for 8 months under 100%, 36% or 16% of full sunlight.

4种植物生长于 10 0 %、36 %和 16 %的自然光下 8个月，叶片的光化学速率和热能耗散速率随光强增大而提高，热能耗散占总的光能吸收的比例也因光强不同而改变，16 %光下的相对热耗散率约为 40 %～ 45 %，10 0 %自然光下增大至 5 0 %～ 75 %。

He is careful earthing up the saplings so that they can withstand the imminent storm .

他小心地给那些树苗培土，使它们能抗住即将来临的风暴。

He repeated it every day while putting in willow saplings beside his house and sowing rue, camel grass and other plants on the dunes to hold down the sand.

他天天这样唠唠叨叨，同时在住屋附近的沙洼地里插柳条、种沙打旺，坨坡上撤骆驼草籽、沙蒿粒，干起治沙封沙的勾当。

Formosana saplings in the cypress stand, the 45-yr-old natural regenerated cypress stand in chi lan-shan area northeastern Taiwan was selected as the research site. The study focuses on the variation of crown morphology and structure pattern of different crown class trees to explore the ability of growth adaptation.

本研究以栖兰山地区天然更新已届45年之扁柏林分，就其林分中不同冠级之台湾扁柏林木为研究对象，测量分析其树冠形态及结构，探讨林分内不同大小的林木生长调适能力。

When he finds a place that suits him, the beaver cuts saplings, usually willow or alders, by gnawing them down with his big teeth. Then, still using his teeth, he drags them to the place he has chosen for the dam

当它找到一个适合自己的地方时，河狸就用它很大的牙齿咬断一些小树，通常是柳树和桤木，然后仍用牙齿咬住树根，把它们拖至它所选定的筑坝地点。

The quality of both red and white wine depends very much on the wine maker talent and on the quality of the grapes.

他的红酒和白酒的品质，根据酿造者的能力和葡萄的质量，各有差异。

No, I don't want to get drunk before my next match.

" "不，我不想让我的下一场比赛前喝醉了。