摘要
用改进的离体连续快速称重法对刺儿菜(Cirsiumsegetum)、苦苣(Sonchusoleraceus)、猪毛蒿(Artemisiascoparia)、长芒草(Stipabungeana)和二裂委陵菜(Potentillabifurca)的蒸腾速率进行了测定,表明二裂委陵菜的蒸腾速率最高、刺儿菜最低,其它处于中间水平。3年退耕地的日蒸腾量远小于裸地的土面蒸发量,群落蒸散量达到0.13～0.64cm·m-2·d-1。
Transpiration of Cirsium segetum,Sonchus oleraceus,Artemisia scoparia,Stipa bungeana,Potentilla bifurca are measured using improved quick weighting after cut off method.The results show that transpiration rate of Potentilla bifurca is at the top of five plant,Cirsium segetum is the lowest.In threes years abandoned land,transpiration in day is far low than evaporation of bareland.The evapotranspiration amount of community reach to 0.13~0.64 cm·m-2·d-1.
出处
《西北植物学报》
CAS
CSCD
2003年第8期1411-1415,共5页
Acta Botanica Boreali-Occidentalia Sinica
基金
黄土高原土壤侵蚀与旱地农业国家重点实验室基金项目"黄土高原不同生态类型区植物适应性的比较研究"(C10501-94)
中国科学院知识创新项目"林牧型生态农业建设模式试验与示范"资助(KZCX01-6)
关键词
离体连续快速称重法
群落蒸散
quick and continuous weighting after being cut off method(QCWC)
community evapotranspiration
