覆草与清耕措施下枣树树干液流的对比分析  

Comparative Analysis on the Stem Sap Flow of Ziziphus jujubaMill. Under the Measures of Covering Straw and Cleaning Tillage

作　　者：张俊[1] 李建贵[2] 朱银飞[1] 王娜[1] 于婷[1] 曹玉江[1] 

机构地区：[1]新疆农业大学林业研究所,乌鲁木齐830052 [2]新疆农业大学科研处,乌鲁木齐830052

出　　处：《新疆农业大学学报》2013年第2期142-146,共5页Journal of Xinjiang Agricultural University

基　　金：新疆维吾尔自治区科技厅条件平台建设项目(PT1009);新疆维吾尔自治区科技厅支撑计划课题项目(201031103);新疆维吾尔自治区重点学科森林培育资助

摘　　要：从生态节水理念出发,以阿克苏市红旗坡农场棉花试验基地内枣园为研究对象,对枣园采取覆草措施与清耕措施,比较晴天、阴天和雨天两处理下枣树树干液流速率,从而达到两种处理的节水效果。结果表明,5～8月晴朗的白天,覆草措施下枣树树干液流速率明显高于清耕措施下枣树树干液流速率,两者的日变化趋势相同,均呈单峰曲线;阴天和雨天,覆草措施与清耕措施下枣树树干液流速率在1d内的各个时段差异不大,无明显的规律,无固定的液流启动和停止时间;在整个生长季,覆草措施与清耕措施的月液流速率和月累计耗水量相比,除了4月和10月外,覆草措施下的枣树明显高于清耕措施下的枣树;在整个生长季,覆草措施下的枣树能够充分利用水分,单株枣树耗水量为214.290L,清耕措施下的单株枣树耗水量为134.745L。The study was used to discuss comparing velocity of sap flow and Ziziphus jujuba Mill. on sunny days and cloudy or rainy days,finally to achieve results from the two water saving treatments in ju- jube orchard in cotton test base in Hongqipo Farm of Aksy city,under the measures of covering straw and cleaning tillage.The results showed that the velocity of Ziziphus jujuba Mill. under covering straw meas- ures was significantly higher than that of cleaning tillage on sunny days from May to August.The daily var- iations trend of the two were similar to each other,and both performed single-peak curve;There were no significant differences in the velocity of Ziziphus jujuba Mill., there were no significant laws, there were no regular starting time or stopping time under the measures of covering straw and cleaning tillage in dif- ferent time intervals of one day on sunny days and cloudy or rainy days. On the basis of comparison of monthly average sap sraw velocity of covering straw and cleaning tillage measures and accumulative water consumption during the whole growing season,the water consumption of Ziziphus jujuba Mill. under cov- ering straw measures was significantly higher than that of cleaning tillage, except April and October. The Ziziphus jujuba Mill. under covering straw measures can sufficiently absorb water during the whole sea- son.The water consumption of single plant of Ziziphus jujuba Mill. was 214.290 L,while the comsump- tion of single plant under cleaning tillage measures was 134.745 L.

关 键 词：清耕 覆草 枣树 树干液流 

分 类 号：S665.1[农业科学—果树学]