1.
Nutrient Dynamics and Fertilization Experiment of Triploid Populus Tomentosa
三倍体毛白杨林木营养动态及施肥试验研究
2.
The Soil Anti-erodibility and Growth of Fine Root and Grass Root in Different Herbages of the Triploid Populus Tomentosa Carr Woodland;
不同草本层三倍体毛白杨林地细根和草根生长及土壤抗蚀性研究
3.
Annual Change of Soil Nutrients in Triploid Populus tomentosa Plantations under Different Planting Densities
不同种植密度下三倍体毛白杨林地土壤的养分消耗
4.
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
5.
"Even now mourners are lamenting by groves of poplars, ghosts am wailing below green maples"
"则看那,白杨村里人呜咽,青枫林下鬼吟哦."
6.
Practice in constructing the pulp-making raw material forest base of triploid Chinese white poplar
建设三倍体毛白杨纸浆原料林基地的初步做法
7.
Determination of Wood Color Characteristics and Its Variation among Trees of Chinese White Poplar Plantation
人工林毛白杨木材材色测定及其株间变异
8.
Study on the Ore-controlling Structure of Yanglin ao Scheelite Deposit in East Hengyang, Hunan Province;
湖南衡南杨林坳白钨矿床控矿构造研究
9.
Estimation models of aspen shelter belt evapotrans piration in Tarim River Basin;
塔里木河流域白杨农田防护林蒸散量估算模型
10.
Development and Application of Graphics Information Triploid Populus Tomentosa
三倍体毛白杨叶片营养与林地养分动态研究
11.
Advances in the Study of Fertilization and Nutrient Diagnosis of Triploid Populus tomentosa Plantation
三倍体毛白杨人工林施肥与营养诊断研究进展
12.
The discovery and significance of Yangjingou scheelite deposit,Hunchun City,Jilin Province
吉林省珲春市杨金沟白钨矿床的发现及意义
13.
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
14.
Seedling Measurement of Hybrids of Populus alba and P.alba×P.glandulos,P.alba and P.tomentosa
银白杨与84K杨、毛白杨杂交及苗期测定
15.
Basic Theory and Technique Systems on Fast-growing and High-yield Poplar (P.tomentosa Carr.) Plantation Forest;
毛白杨人工林丰产栽培理论基础与技术体系研究
16.
Study on Root Growth with the Nutritional Characteristic in the Model of Ttiploid Populus Tomentosa--Lolium Multiflorum Lam.;
三倍体毛白杨幼林—黑麦草复合模式根系生长与养分特性研究
17.
Study on Leaf Nutrient Characteristic and Forest Land Nutrient Dynamic of Triploid Populus Tomentosa;
三倍体毛白杨叶片营养特性与林地养分动态研究
18.
Study on Key Techniques and Theory to Maintenance Site Productivity of Triploid Populus Tomentoza Pulp Plantation
三倍体毛白杨纸浆林地力维持理论及关键技术研究