Shifts in the spatio-temporal growth dynamics of shortleaf pine
Shifts in the spatio-temporal growth dynamics of shortleaf pine
复制标题
短叶松时空生长动态的变化
DOI：
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复制
发表时间：
2007
影响因子：
3.8
通讯作者：
C. Wikle
中科院分区：
文献类型：
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作者：
M. Hooten;C. Wikle
以前对地理范围边缘的棘皮松生长历史的研究表明，生长的变化与气候和非气候(如人为)因素相对应。我们采用了依赖于制度的状态空间模型，该模型允许我们在存在各种不确定性源的情况下，使用现成的树木年代学和气候数据来检测和表征树木生长动态在空间和时间上的变化。我们利用大气科学中常见但在生态学和林业中相对鲜为人知的方法，建立了树木生长的层次模型，并描述了生长动力学。随着更多的高维时空过程被考虑，数据集变得更容易获得，解决生态问题的这种方法的实用性将会增加。
Previous studies focusing on the growth history of Pinus echinata at the edge of its geographical range have suggested that changes in growth correspond to climatic and non-climatic (e.g., anthropogenic) factors. We employ a regime-dependent state-space model that allows us to detect and characterize the changes in tree growth dynamics over space and time using readily available dendrochronological and climatic data in the presence of various sources of uncertainty. We utilize methods common in atmospheric sciences but relatively unknown in ecology and forestry to develop a hierarchical model for tree growth and describe the growth dynamics. The utility of such methods for addressing ecological problems will grow as more high dimensional spatio-temporal processes are considered and datasets become more readily available.