作物学报2017，Vol.43Issue(3)：378-388,11.DOI:10.3724/SP.J.1006.2017.00378
综合农业分区尺度下农作物种质资源的空间分布特征
Spatial Distribution Characteristics of National Crop Germplasm Resources Based on Spatial Statistics in Comprehensive Agricultural Regional Scale
摘要
Abstract
It is important to analyze and understand the spatial distribution features and models for the comprehensive collection, effective protection and efficient utilization of crop germplasm resources. The spatial distribution features of crop germplasm resources were analyzed in quantity, density and orientative features in comprehensive agricultural regional scale by using the spatial statistical principles and methods and ArcGIS software. In conclusion, the crop germplasm densities of The Yellow Huaihe-Haihe Rivers region and loess plateau region are the largest showing abundant crop germplasm resources in these two regions, which should be protected as a key point. The crop germplasm resources of the southern region of China and Gansu-Xinjiang region are the most widely distributed, and the distribution trend in these two areas is also the most obvious. The orientation angles of all districts except for the Gansu-Xinjiang region are within 90°. The distribution, distribution trend and the orientation angle not only can be used to analyze orientative distribution characteristics of regional resources, but also can help us to find the key factors affecting germplasm resource geographic distribution from spatial perspective. In concen-tration characteristics, the germplasm resources in Qinghai Tibet region, Inner Mongolia and the area along the Great Wall region and North-east region of China are the most centralized in distribution. We can take some measures to protect germ-plasm resources in these areas. This study reveals the difference in density and orientation characteristics of germplasm re-sources distribution and provides some theoretical bases in protection, utilization and collection of germplasm resources in different comprehensive agricultural regions.关键词
作物种质资源/空间统计学/空间分布特征/综合农业分区Key words
Crop germplasm resources/Spatial statistics/Spatial distribution characteristics/Comprehensive agricultural regions引用本文复制引用
陈彦清,曹永生,方沩,陈丽娜..综合农业分区尺度下农作物种质资源的空间分布特征[J].作物学报,2017,43(3):378-388,11.基金项目
本研究由国家科技基础性工作专项"贵州农业生物资源调查(2012FY110200)"和国家农作物种质资源平台项目(NICGR)资助.This study was supported by the National Science and Technology Basic Work Special Project "Agricultural Biological Resources Survey of Guizhou Province" (2012FY110200) and the National Infrastructure for Crop Germplasm Resources (NICGR). （2012FY110200）
