Variations in root chemistry of three common forest species,southwestern China

来源 :林业研究:英文版 | 被引量 : 0次 | 上传用户:sjhung888
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Root chemistry varies with tree species and root diameter but little information is available about Tibetan forest species. The root chemistry of three root diameter classes (fine: 0–2 mm, medium: 2–5 mm, coarse: 5–10 mm) of three subalpine species (Abies
其他文献
Pinus patula is a species commonly used for reforestation in Mexico.However,efficient methods for the mass production seedlings are required.Micropropagation pa
甲状腺癌是临床上较为常见的一类头颈部肿瘤,病理类型多样,如乳头状癌、滤泡状癌、髓质癌或间变性甲状腺癌。好发年龄在25~65岁,女性多于男性。甲状腺癌远处转移不常见,但颈
采用气质联用技术对市场上某沉香精油的成分进行了分析,通过对比研究探索了一种分离效果较好的色谱柱程序升温方法。研究发现,市售沉香精油中可分离的成分达100余种,其中可通
Thinning of Korean pine (Pinus koraiensis Sieb. et Zucc.) is used to facilitate timber and cone production. The present study in Northeast China investigated th
This study quantifies biomass,aboveground and belowground net productivity,along with additional environmental factors over a 2–3 year period in Barnawapara Sa
The objective of the study was to investigate in vivo interspecific pollination success between Pinus radiata, P. maximinoi, P. oocarpa and P. tecunumanii. Pinu
Betula platyphylla Sukaczev tetraploids have significantly larger leaf, fruit and stoma (gigantic phenotype) than diploids of the same species;however, the mech
长期小剂量照射的电离辐射可引起放射性疾病,其发病情况与受照剂量有关.笔者通过对该区3所医院在被评为三甲医院前后10年间放射工作者放射性疾病发病情况的比较,分析影响因素
据报道,铝的摄入是老年痴呆症的危险因素[1].随着老年痴呆症的增多,一些研究部门与医疗机构都进行了其发病原因的研究.铝的摄入以肠道为主要途径,铝经肠道吸收后主要富集在脑
Changes in land cover have a direct impact on forest ecosystem goods and services.In this study,changes in land cover in Sierra de Juarez–Oaxaca ecosystems wer