%0 Journal Article
%T CHANGES IN PHOTOSYNTHESIS AND TRANSPIRATION OF MAIN CONSTRUCTIVE PLANTS IN WU US DESERT<br>不同时期毛乌素沙区主要植物种光合作用和蒸腾作用的变化
%A Zhou Hai-yan
%A Huang Zi-chen
%A <br>周海燕
%A 黄子琛
%J 植物生态学报
%D 1996
%I Editorial Office of Chinese Journal of Plant Ecology
%X Photosynthesis and transpiration of main constructive plants (Artemisia ordosica, Caragana intermedia and Salix matsudana) in Mu US Desert were measured with model LI 6000 photosynthesis system in different periods. In addition, the photosynthesis active radiation, relative humidity, leaf temperature, air tempeatue, intercellular CO2 concentration, stomatal resistance, leaf water potential, soil moisture and so on were also measured. The results showed that photosynthesis and transpiration for different species at different periods were different and closely related to environmental conditions and plant internal factors. Photosynthesis active radiation was the dominant factor,and leaf stomatal resistance also played an important role in plant photosynthesis and transpiration. Different plant species had different responses to natural conditions, among them, Caragana intermedia was more sensitive than the other two species. The effect of soil moisture condition on leaf water potential of Artemisia ordosica was most noticeable. Water use efficiency of Caragana intermedia was also higher as compared with the other two species.
%K Photosynthesis
%K Transpiration
%K Stomatal resistance
%K Water use efficiency<br>光合作用，蒸腾作用，气孔阻力，水分利用效率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=2F2173CCFF292BF447DC2681EA33BBAE&aid=72669B408F6419E231B044433B83DBFA&yid=8A15F8B0AA0E5323&vid=A04140E723CB732E&iid=0B39A22176CE99FB&sid=2B5DE8A23DCEED39&eid=6DE26652A1045643&journal_id=1005-264X&journal_name=植物生态学报&referenced_num=30&reference_num=8