准格尔丘陵区暖温型草原主要优势植物蒸腾特征比较分析  

Comparison on Transpiration Rate of Dominant Plants in ZhunGer Hilly Region

作　　者：张鲁[1] 龚建周[2] 仝川[1] 杨劼[1] 苗百岭[1] 

机构地区：[1]内蒙古大学生态与环境科学系,内蒙古呼和浩特010021 [2]中山大学环境科学与工程学院,广州510275

出　　处：《干旱区资源与环境》2004年第6期146-151,共6页Journal of Arid Land Resources and Environment

基　　金：内蒙古自然基金 ( 2 0 0 10 90 5 -0 4);国家重点基础研究发展规划项目 ( G2 0 0 0 0 1860 4)资助

摘　　要：准格尔丘陵区位于鄂尔多斯高原最西端 ,是黄河中游水土流失治理、生态环境建设的重点区域。 2 0 0 2年 5～ 9月中下旬 ,在自然条件下 ,对准格尔丘陵区暖温型草原主要优势植物种本氏针茅、百里香、牛枝子、糙隐子草和主要生态建设种杨树、榆树、沙柳、中间锦鸡儿的蒸腾耗水特征应用 LI- 1 60 0稳态气孔计同时进行野外测定。结果表明 :八种植物的蒸腾速率在各个月份内并不相同 ,环境因子的综合作用可影响植物蒸腾速率的大小。The ZhunGer hilly region is located in the west part of the Ordos Plateau, Inner Mongolia, it is a key region for soil erosion control and eco-environment reclamation in the middle reach of Yellow River. From May to September, 2002, the transpiration characteristics of Popular simonii, Ulmus pumila, Salix psammophyla, Caragana davazamcii, Thymus serpyllum, Lespedeza davurica, Cleistogenes squarrosa andStipa bungeanawere measured under natural condition by a portable L1600 stable stomatal. The results indicated that the transpiration rate of eight plants were not identical in each month, and each plant's transpiration rate wasdifferenttoo.The result indicatedthat the transpiration rate of plants weredeeply related to the environmental factors.

关 键 词：丘陵区 蒸腾速率 草原 耗水特征 杨树 榆树 水土流失治理 准格尔 区位 重点区域 

分 类 号：X171[环境科学与工程—环境科学] S157[农业科学—土壤学]