您要查找的是不是:
- tree growth yield 树木生产量
- Influence of Resinosis on Growth Yield for Larix gmelinii Rupr. 落叶松流脂病对其生长量的影响。
- Competition is a vital factor to affect tree growth. 竞争是影响树木生长的重要因素。
- Analysis on Growth Yield of 9 Geographic Provenance of Pinus ussuriensis Kom. 大青杨9个地理种源生长量的对比分析。
- Wet heart wood,an abnormality occuring in tree growth,is a critical problem in poplar wood processing and utilization. 湿心材是树木生长中的一种反常现象 ,在杨树中表现甚为突出 ,是杨树加工利用中的一大难题。
- This article discussed the influences of microclimate, heat and water factors on the tree growth. 本文探讨了小气候条件:热量和水分因子,小气候效应和林木生长发育的关系。
- It is found that electrical tree growth in HDPE is easier than that in LDPE,even though ther... 据此,我们推测,材料的形态结构对于电树的发生和电树的发展有着不同的影响。
- There is still no universally agreed-on explanation for why there should be such a dramatic cessation of tree growth at the upper timberline. 仍然有没有普遍地同意-在解释上为为什么应该有如此的一个戏剧性的停止树生长在上面的树带界线。
- Dian Shi Ziyan East, on top of an ancient banyan tree growth, fibrous roots unique shapeEngraved on the wall that many celebrities. 殿东为狮子岩,顶上生长着一株古榕树,须根造型独特,岩壁上名人题刻众多。
- Biging G S,Dobbertin M.1995.Evalution of competition indices individual tree growth models.Forest Science[J],41(2):360-377. 林业部调查规划院主编.;1988
- The NNGA has been publishing articles, research papers, and monographs on nuts, nut tree growth, and nut tree culture since 1910. 同时该机构还出版有关坚果的文章、研究论文和专论等。
- The natural of modification function was discussed on the basesof tree growth characteristic and modification function of old-growth Larch growth was constructed. 根据树木生长特点,探讨了修改函数的性质。
- Some countries that are poorer than this but which have policies to promote tree growth also showed an overall increase in their capacity to sequester carbon dioxide. 有些国家没那么富裕但有政策提倡植树隔离二氧化碳的能力也呈现整体上涨的趋势。
- The relationship of scenic value and tree growth in Finns tabulaeformis stand is the higher DBH, the better vision effect;the higher growth potential, the better vision effect. 油松风景林的美景度与林木生长间的关系,一般胸径较大观赏价值较高,生长势较好林木的观赏效果也较好;
- The temperature at the upper timberline is probably more important in preventing tree growth than factors such as the amount of snowfall or the force of winds. 温度在上面的树带界线或许更重要在避免树生长方面超过因素如此的当做大量的降雪或那力量风。
- Index of leaves age,growth yields,cellulose,lignin,pentose and the ratio of cellulose's length of reed in 3 experimental field in Panjin 7th jail region,where la... 石油开发的各种地面工程造成了严重的景观破碎化现象,破坏了湿地的原有生境,是造成湿地生态系统退化和苇田减产的主要因素。
- A Method for Mensurating Plant Relative Growth Yield 一种测定植物相对生长量的方法
- As the car hit the tree he was snot out. 汽车扭在村上,他被猛地摔了出来。
- Keywords chloramphenicol;substrate;growth yield;energy spilling; 氯霉素;底物;产率;能量溅溢;
- Under different soil condition,planting condition,planting time and tree species,the forestation survival rate and the tree growth were investigated with and without application of WSCF. 试验采用不同土壤条件、不同栽培方案、不同时间、不同树种进行造林;调查使用蓄水渗膜和不使用蓄水渗膜对造林成活率和苗木生长量的影响.