STUDY ON THE STRUCTURE CHARACTERIS TICS AND REGENERATION DYNAMICS OF CHINESE SPRUCE FORESTS IN QINLING MOUNTAINS Characteristics of the generalized structure of pollutant removal models for constructed wetlands Study on the Structure Characteristics of Village Courtyard Forest in Fujian Province Structure Character istics of Plant Commun ity in Sma ll-sized Sandof Be ijingWestern a t D ifferent Successiona l Stages STRUCTURE CHARACTERISTICS AND BIOMASS OF POTENTILLA FRUTICOSA SHRUB IN QINGHAI-XIZANG PLATEAU Microstructure characteristics of seed from 11 plants of Artemisia L. in China The structure characteristics and dominant population regeneration types of Tsuga tchekiangensis communities in the Jiulongshan National Natural Reserve of Zhejiang Province THE CHEMICAL STRUCTURES AND CHARACTERISTICS OF THE MWLs OF CHINESE FIR (CUNNINGHAMIA LANCEOLATA) AND POPLAR “SANBEI” NO.1 (POPULUS NIGRA×P.SIMONII) WOOD Morphology and structure of gel-based water-absorbent slow release nitrogen fertilizers and the influence of salt Structure Characteristics of Different Types of Village Waterside Forests in Fujian Province Tree Species Diversity and Structure Characteristic of Secondary Forests of Quercus liaotungensis on Xiaolongshan Structure Characteristics of a Typical Community of the Rare and Endangered Plants of Houhe Nature Reserve in the Southwest Hubei Community structure characteristics of culturable cellulose-decomposing fungi in soils from different ecosystems in the Sanjiangyuan Regions Population Structure and Quantitative Characteristics of the Psychrophyte Rhodiola fastigiata