维普期刊资源整合服务平台（V6.5）

维普中文期刊产品整合服务

1篇 您的检索式：作者名="Lisa J.Samuelson"

选中清除导出查看参考文献查看引证文献引用追踪共1页首页上一页第1页下一页末页 /1 跳转

		题名	作者	年代	出处	被引量
	1	Estimating Pinus palustris tree diameter and stem volume from tree height,crown area and stand-level parameters显示文摘Accurate and efficient estimation of forest growth and live biomass is a critical element in assessing potential responses to forest management and environmental change.The objective of this study was to develop models to predict longleaf pine tree diameter at breast height(dbh)and merchantable stem volume(V)using data obtained from field measurements.We used longleaf pine tree data from 3,376 planted trees on 127 permanent plots located in the U.S.Gulf Coastal Plain region to fit equations to predict dbh and V as functions of tree height(H)and crown area(CA).Prediction of dbh as a function of H improved when CA was added as an additional independent variable.Similarly,predictions of V based on H improved when CA was included.Incorporation of additional stand variables such as age,site index,dominant height,and stand density were also evaluated but resulted in only small improvements in model performance.For model testing we used data from planted and naturally-regenerated trees located inside and outside the geographic area used for model fitting.Our results suggest that the models are a robust alternative for dbh and V estimations when H and CA are known on planted stands with potential for naturally-regenerated stands,across a wide range of ages.We discuss the importance of these models for use with metrics derived from remote sensing data.	C.A.Gonzalez-Benecke Salvador A.Gezan Lisa J.Samuelson Wendell P.Cropper Daniel J.Leduc Timothy A.Martin	2014	Journal of Forestry Research2014，25，1：	12

返回顶部每页显示：

共1页首页上一页第1页下一页末页 /1 跳转

goolge学术搜索-维普

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费