Changes of Spectral Reflectance of Pinus densiflora Forest and Relations to Some Factors in Spring at Au Ore Region in Zhaoyuan County,Shandong Province Preliminary study on the growth and adaptation of Pinus densiflora var.zhangwuensis STUDY ON COMMUNITY CHARACTERISTICS OF NATURAL PINUS DENSIFLORA FORESTS IN CHANGBAI MOUNTAIN AREA Imapct of Kunyushan Web-spinning Sawfly Feeding on Growth of Japanese Red Pine Physiological characteristics of Pinus densiflora var. zhangwuensis and Pinus sylvestris var. mongolica seedlings on sandy lands under salt-alkali stresses. Changes of the Biological and Spectral Characteristics of the Pine Caterpillar-Damaged Red Pine Forest in the Spring Age Structure and Regeneration Characteristics of Pinus densifolia Forest in the Su Cheng Reserve of the Yuntai Mountains in Jiangsu Province Individual biomass of natural Pinus densiflora A study on the structure and dynamics of the diameter of Pinus densiflora population in Shandong Province Value of ecosystem services of Kunyu Mountain Natural Reserve A Comparative Study on Physiological Characteristics of Drought Resistance of Pinus densiflora var. zhangwuensis and P. sylvestris var. mongolica in Sandy Soil A NEW VARIETY OF Pinus densiflora SIEB.ET ZUCC Characteristics of photosynthetic productivity and water-consumption for transpiration in Pinus densiflora var. zhangwuensis and Pinus sylvestris var. mongolica Photosynthetic characteristics and chlorophyll a fluorescence induction parameters of Pinus densiflora on sandy soil Impact of the stand characteristics of Pinus densiflora pure forests on the infestations of Cephalcia kunyushanica in Kunyushan region