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- In addition, S. guani could form field population in the poplar forest after it was released.Poplar longicorn was also sustained. 此外,肿腿蜂释放后可在杨树林间形成野外种群,并对杨树天牛具有很好的持续控制作用。
- Ejin Banner now has almost 30000 hectares Diversifolious poplar forest which is listed on state-level nature protection area. 额济纳旗现存的胡杨林约3万公顷,已被列为国家级自然保护区。
- It shows that the increasement of cultivated land and living space stem from reclaiming grassland and occupying desert diversiform-leaved poplar forest. 结果显示,耕地和城镇居住用地的增加完全来源于对草地的开垦和对荒漠胡杨林的占用。
- The difference between highest and lowest monthly mean values is about 72% in Broad-leaved Korean Pine forest,73% in Asian white birch forest,26% in David poplar forest,56% in Spruce-fir forest,and 144% in Ermans Birch forest. 不同群落细根现存量月动态变化也有较大差异,月均最高最低相差阔叶红松林约为72%25、白桦林近73%25、山杨林26%25、云冷杉林56%25、岳桦林144%25。
- An example for such conditions is the Tarim River and theEuphrates Poplar Forests at its banks and branches. 塔里木河和生长在其岸边和支流上的胡杨就是干旱地区生态环境的一个典型。
- Natural riparian poplar forests and their Conservation strategies in Etris river, Xinjiang. 新疆额尔齐斯河河谷天然杨树林及其保育对策研究。
- The bacterial swollen stem canker of poplars is prevalent on large scale in man-made poplar forest of Northeastern of China. 杨树细菌肿茎溃疡病在中国东北地区杨树人工林大面积发生,引起幼林和成林的树干和枝坏死、腐烂、溃疡、肿茎、木质变色,造成严重损失。
- The large stretches of dying poplar forests and woods on the lower reaches of the Tarim River have been brought back to life. 塔河下游大片的胡杨林和低矮灌木起死回生;
- fast growing and high yield poplar forest 杨树丰产林
- Studies on Biomass of Poplar Forest for Industrial Wood 杨树工业用材生物量的研究
- The forest will act as a defense against desert dust. 森林能起防御沙漠灰沙的作用。
- It is said that there are wolves in this forest. 据说这片森林里有狼。
- A large part of Africa is made up of thick forest. 非洲的大部分地区都是密林。
- There is a leafy forest in our hometown. 在我们的家乡有一片树叶茂密的森林。
- A poplar tree, especially a cottonwood. 三角叶杨一种杨树,尤指三角叶杨
- There is a pine forest near our house. 我们家附近有片松树林。
- Billows of flame swept through the forest. 熊熊烈火席卷森林。
- The forest was almost impassable. 森林几乎不可逾越。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries