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[1]ZHU Shun-bo,XU Wen-nian,LIU Gang,et al.Effect of Slope Gradient on Physiological Characteristic of Mediccago sativa and Cynodon dactylon[J].Research of Soil and Water Conservation,2012,19(02):218-221.

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Effect of Slope Gradient on Physiological Characteristic of Mediccago sativa and Cynodon dactylon

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 02 Page number: 218-221 Column: Public date: 2012-04-20

Title:: Effect of Slope Gradient on Physiological Characteristic of Mediccago sativa and Cynodon dactylon

Author(s):: ZHU Shun-bo¹, XU Wen-nian², LIU Gang², ZHAO Juan¹, CHEN Yi-ge¹; 1. College of Chemistry and Life Science, China Three Gorges University, Yichang, Hubei 443002, China;
2. Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, Hubei 443002, China

Keywords:: Medicago sativa L; Cynodon dactylon Linn. Pers; effect of slope gradient; photosynthesis rate; transpiration rate; photosynthetic pigment

CLC:: Q945.78;S541⁺.1

DOI:: -

Abstract:: To analyze the influence of slope gradient on photosynthetic physiological characteristics of vegetation,the change rate of photosynthetic and transpiration of Medicago sativa and Cynodon dactylon growing on slopes with different gradient were measured.The results showed that the photosynthetic rate and transpiration rate of Medicago sativa and Cynodon dactylon were increasing with slope gradient,and the maximum occurred on 15°slope.The photosynthetic physiological characteristics of these two plants were affected by slope gradient.The changes of Medicago sativa was significant,but Cynodon dactylon changed little when the gradient is less than 60°.Medicago sativa grows well on slope below 30°due to its good nitrogen-fixing ability.Nevertheless,Cynodon dactylon could grow on steep slope in greening engineering.This study provided not only scientific references for species selection,but also theoretical basis for ecological restoration on slope land.

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