北京林业大学学报2018，Vol.40Issue(3)：66-74,9.DOI:10.13332/j.1000-1522.20170180
防风固沙优良树种欧李的潜在适生区及生态特征
Potential suitable distribution area and ecological characteristics of Cerasus humilis, an excellent tree species for windproof and sand fixation
摘要
Abstract
[ Objective ] Cerasus humilis, a unique ecological tree species in China, has significant ecological value and economic value in windproof and sand fixation, so it is important to predict the global potential habitat of C. humilis and analyze its niche, which is beneficial for its cultivation promotion and sand control. [ Method ] According to 379 distribution points of C. humilis and 19 ecological variables, four ecological niche models ( BIOCLIM, DOMAIN, GARP, MAXENT) were used to predict the potential suitable distribution area of C. humilis and analyze its ecological characteristics. The predicted results were evaluated by two statistical criteria, the area under the receiver operating characteristic curve ( AUC) and Kappa value. [ Result] The results showed that the potential distribution area of C. humilis was mainly located in the range of 30°-52° N and 102°-137° E, including China, South Korea, North Korea, and Russian Far East bordering northeast China. Besides, a small amount of area was located in Afghanistan and Tajikistan as well. Among them, the most suitable area was mainly distributed in China. The model evaluation results showed that the AUC values of the four models were above 0. 85 and the Kappa values were above 0. 7 , indicating their good prediction accuracy and consistency, so they can well predict the potential suitable area of C. humilis. The ecological characteristics of the distribution area for C. humilis were that the range of annual average temperature was 3. 2 -13. 9℃, the monthly mean value of diurnal temperature difference ( max. temperature-min. temperature) was 10. 1-13. 0℃, the range of isothermality was 24 -30, SD of temperature seasonality ranged from 9234 to 13581, precipitation of the wettest month ranged from 115 to 226 mm, precipitation of the driest month was 2 to 10 mm and the variation range of precipitation seasonality was 77 - 115 . [ Conclusion] Potential suitable distributing area of C. humilis was mainly in temperate zone monsoon climate and the most suitable area was mainly located in northeastern and northern China, where large-scale cultivation of C. humilis can be achieved for desertification management. In Korean, North Korea, Russian Far East and Afghanistan, the suitability was relatively low, so small-scale cultivation trials can be conducted before expanding production.关键词
欧李/生态位模型/潜在适生区/模型评价/生态特征Key words
Cerasus humilis/niche model/potential suitable distributing area/model evaluation/ecological characteristics分类
农业科技引用本文复制引用
张琴,宋经元,邵飞,傅生辰,孙成忠,袁丽钗,谢彩香..防风固沙优良树种欧李的潜在适生区及生态特征[J].北京林业大学学报,2018,40(3):66-74,9.基金项目
国家自然科学基金项目(81473304),"十二五"国家科技支撑计划课题(2015BAI05B01). （81473304）
