1.
Studies on the Relation between Density and Undergrowth Diversity of Pinus Tabulaeformis and Populus Davidana Forests in DA WO PU;
大窝铺油松林山杨林林分密度与林下植物多样性研究
2.
Study on Intraspecific and Interspecific Competition of the Populus davidiana Secondary Forest in Mao'ershan Mountains Area
帽儿山地区山杨次生林林木竞争关系的研究
3.
The Seed Bank in Logging Gaps in Populus davidiana-Betula platyphylla Secondary Forests in Changbai Mountain
长白山杨桦次生林采伐林隙种子库特征
4.
A Study on Effects of Biological Mulching on Growth and Soil Properties of Poplar Plantation in Southern Upland Area;
南方山地杨树人工林生物覆盖效应的研究
5.
On the Historic Value and Flaw of the Epitaph for the Governer Mr.Yang Danshan in Yuhuan By Lin Zexu;
论林则徐《玉环同知杨君丹山墓表》的价值及不足
6.
Study on Interspecific Competition Among Dominant Tree Species in Alniphyllum fortunei Secondary Forest in the Meihuashan Nature Reserve
梅花山拟赤杨次生林优势树种种间竞争研究
7.
Growth Process and Succession Trend of Polar-Birch Secondary Forests in Changbai Mountain,Northeast China
长白山杨桦次生林生长过程与演替动向分析
8.
Study on Genetical Variabilities of the Afforestation with Populus bolleana Lauche in Shanxi Province
山西省新疆杨造林中其个体基因变异的研究
9.
Eco-physiological Effect of Populus Davidiana-Quercus Liaotungensis Mixed Forests in Ziwuling Forest Area;
子午岭林区山杨—辽东栎混交林生理生态效应研究
10.
Effects of Biological Mulching on Rhizospheric Nutrition and Growth of Poplar Plantation in Southern Upland Area;
生物覆盖对南方山地杨树人工林根际营养及生长的影响
11.
The Textual Research of Writing Time and Historical Value of LIN Ze-xu s Reply to Mr.Guohan;
林则徐《答奉化令杨丹山明府国翰书》成文时间与史学价值考释
12.
Tourism Resource Property & its Development of DaYang Mountain Forest Parkin Changping District of Beijing;
北京昌平区大杨山森林公园旅游资源的特点及其开发
13.
Effects of the Frozen Rain and Snow Disaster on the Dominant Species of Castanopsis Forests in Yangdongshan Shierdushui Provincial Nature Reserve of Guangdong
冰雪灾害对杨东山十二度水自然保护区栲类林建群种的影响
14.
Probe into the Tenure Reform of State-owned Forest Farm--a case study on Yunxi forest farm in Shanxi;
国营林场产权制度改革探讨——以山西省杨树丰产林实验局云西林场为例
15.
Native Auxiliary Species of Mixed Broadleaf-Korean Pine Stands--Populus ussuriensis Kom.
阔叶红松林的伴生乡土杨树——大青杨
16.
antipyrine salicylacetate
乙酰水杨酸安替比林
17.
Does Yang Lin want to study English now?
杨林现在想学英语吗？
18.
He was seated between Xiao Yang and Xiao Lin.
他坐在小杨和小林之间。