摘要
通过对试验区顶坛花椒的耗水特征进行研究,确定喀斯特区造林植苗穴规格。研究结果表明:喀斯特区顶坛花椒展叶期(3-4月)的耗水量为17.66mm、开花结果期(5-6月)为109.01mm、成熟期(7-8月)为44.03mm,其生长发育期总耗水量为170.70mm。土面、石槽、石沟三种小生境的最大日总需水量分别为0.011291m3/m3、0.014019m3/m3、0.013175m3/m3;而最小日总需水量为0.007337m3/m3、0.009124m3/m3、0.008571m3/m3。喀斯特区不同小生境植苗穴大小因小生境、土壤含水量、小气候环境不同而存在差异。其植苗穴大小为石槽最大,其次是石沟,最小是土面。
Water consumption features are studied in the experimental area, and then planting hole of certain size is made in karst area. The results show that the water consumption of Zanthoxylurn bungeanum vat. dintanensis in leafing phase（March to April）and fruiting period（May to June）as well as autumn time（July to August） are respectively 17.66 mm, 109.1 mm and 44.03 mm. Total water consumption in growing period is 170. 70 mm. The maximum daily total water consumption at different microhabitats（soil surface, stone gully, stone pit） are 0. 011 291 m^3/m^3, 0. 014 019 m^3/m^3and 0. 013 175 m^3/m^3 respectively, and the minimum daily total water consumption of different microhabitats （soil surface, stone gully, stone pit） are 0. 007 337 m^3/m^3, 0. 009 124 m^3/m^3 and 0. 008 571 m^3/m^3 respectively. Size of planting hole at different habitats is different due to the difference of microhabitats, soil moisture and microclimate, and the maximum size of planting hole should be in stone pit and the minimum size on soil surface.
出处
《中国岩溶》
CAS
CSCD
2009年第2期189-193,共5页
Carsologica Sinica
基金
国家重点基础研究发展规划项目(973)"西南喀斯特地区水土流失及调控机理研究"(2006CB403206)课题:"喀斯特生物适应对策及物种优化配置"(2006CB403206-6)
国家重点基础研究发展规划项目(973)"西南喀斯特地区水土流失及调控机理研究"(2006CB403206)课题:"典型小流域基于生态水文过程的生态需水的时空分异及其需水量计算"(2006CB403204)
国家"十五"科技重大攻关计划项目(2004BA606A-09)
2001-2005贵州省省长基金项目(黔科教办[2001]3号)
贵州省优秀青年科技人才项目
关键词
喀斯特区
顶坛花椒
耗水特征
造林整地技术
贵州省
karst area
Zanthoxylum bungeanum
water consumption characteristics
afforestation technique
Guizhou province
