摘要
森林生物量是评价森林生态系统结构、功能、质量和效益的重要参数,天山云杉作为新疆山地最重要的树种,建立天山云杉生物量空间数据能为区域森林碳汇评估提供数据支撑。本研究采集新疆天山西部区域的云杉野外林木调查数据、气象因子、地形因子和遥感影像四类异构数据。异构数据包含天山云杉生物因子和非生物因子,经过空间统计分析、提取等处理后建立天山云杉生物量空间分布数据集。基于回归克里格法建立模型,生成天山西部云杉生物量空间分布表面。本数据多源异构,空间建模有效结合了非生物因子,不仅可以用于研究云杉在生长过程中受非生物量因子的影响,而且可为新疆天山西部森林生物量相关的研究提供可靠的数据支持,为新疆山地森林生态系统的科学管理提供科学依据。
Aboveground biomass is an important parameter for the evaluation of the structure,function,quality and benefit of forest ecosystems.As Tianshan spruce is the most important tree species in the mountains of Xinjiang,the spatial data collection of Tianshan spruce biomass can provide data support for regional forest carbon sink evaluation.In this study,we collected four types of heterogeneous data,i.e.spruce field survey data,meteorological factors,terrain factors and remote sensing images in western Tianshan of Xinjiang.Heterogeneous data includes both biological and abiotic factors of Tianshan spruce.After spatial statistical analysis,extraction and other processing,we established a dataset of spatial distribution of spruce biomass.A model was established based on regression kriging to generate the spatial distribution surface of spruce biomass in Western Tianshan Mountains.The dataset is composed of different data from multiple sources.The spatial modeling in effective combination with abiotic factors can provide reliable data support for the research on forest biomass in Western Tianshan Mountains of Xinjiang.Moreover,it can serve as a scientific basis for the scientific management of the mountain forest ecosystem in Xinjiang.
作者
蔡潮勇
曹姗姗
孔繁涛
胡林
刘婷婷
孙伟
王蕾
CAI Chaoyong;CAO Shanshan;KONG Fantao;HU Lin;LIU Tingting;SUN Wei;WANG Lei(College of Computer and Information Engineering,Xinjiang Agricultural University,Urumqi 830052,P.R.China;Agricultural Information Institute of CAAS,Beijing 100081;National Agriculture Science Data Center,Beijing 100081,P.R.China;National Nanfan Research Institute(Sanya),Chinese Academy of Agricultural Sciences,Sanya 572024,P.R.China;Institute of Special Animal and Plant Sciences of CAAS,Changchun 130112,P.R.China;Institute of modern forestry,Xinjiang Academy of Forestry Sciences,Urumqi 830092,P.R.China)
基金
国家自然科学基金(31860180,41807005,32060321)。
关键词
天山云杉
地上生物量
异构数据
回归克里格
空间分布
Tianshan spruce
aboveground biomass
heterogeneous data
regression kriging
spatial distribution
