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Ecological effects of lawn greens with pure and
mixed stands in an urban setting |
| LIU Jiaomei1, LI Shuhua2, ZHANG Zhiguo2 |
| 1.State Key Union Laboratory for Environmental Simulation and Contamination Control, Beijing Normal University; 2.Department of Horticulture and Landscape Architecture, China Agricultural University |
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Abstract We studied the ecological benefits of four types of urban green spaces (lawn, a Robinia pseudoacacia stand, a Pinus tabulaeformis stand and a mixed stand of both species) in Yuan Dynasty Wall Relics Park, Beijing. Each of the eight sampling sites was about 0.1 hm2. The experiment was carried out in June, 2006 over a period of eight consecutive days, during which we continuously measured air temperature, relative humidity (RH) and wind speed at the four green spaces in both horizontal and vertical directions. The results were as follows: in the horizontal direction, the all-day average temperature at the pine stand was the lowest and its RH was the highest under three different climate conditions. During the daytime high temperature period, the temperature of the lawn was the highest and its RH the lowest. The temperature was lowest for the mixed stand, and the RH was highest for the pine stand. The highest average daily temperature occurred in the locust stand. The temperature and RH of the four green spaces were statistically different at the 0.05 level of significance. In the vertical direction, the average daily temperature of the four green spaces increased with height. The average daily RH of the four green spaces decreased slightly with increased height. During the high temperature period of the day, the average temperature of the lawn and the P. tabulaeformis stand declined with the increased height, but the temperature at the R. pseudoacacia stand and the mixed P. tabulaeformis–R. pseudoacacia stand fluctuated greatly. With regard to the effect of lowering the wind speed, the mixed stand was better than the other green spaces. Based on these results, it can be concluded that the mixed Chinese pine and locust stand was the best choice for the establishment of urban green spaces.
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Issue Date: 05 December 2008
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| 1 |
Chen Z X, Su X H (1998a). Studyon ecology benefits of landscape green II. J Chin Landscape Architect, 2: 51–54 (in Chinese)
|
| 2 |
Chen Z X, Su X H (1998b). Studyon ecology benefits of landscape green III. J Chin Landscape Architect, 3: 53–56 (in Chinese)
|
| 3 |
Fu H N, Zhang L Q, Yan L Z, Gao J (2000). Study on ecological structure of the ornamental plants communityin Shanghai. J Chin Landscape Architect, 16(2): 22–25 (in Chinese)
|
| 4 |
Huang X L, Zhang G Q (1998). Studyon urban living environment green quantity group. J Chin Landscape Architect, 14(1): 61–63 (in Chinese)
|
| 5 |
Leng P S, Yang X H, Su F, Wu B (2004). Economic evaluation of urban greenspace ecological benefits in Beijingcity. J Beijing Agric Coll, 19(4): 25–28 (in Chinese)
|
| 6 |
Li G S, Hong Y, Li Y X (2004). The artificial mixed ecosystem performanceoverview. Protect For Sci Tech, 6: 45–46 (in Chinese)
|
| 7 |
Liu J P, Huang H (2000). Discussionof urban green space sight pattern and ecology construct countermeasure. Inner Mongolia Sci Tech Econ, 4: 9–11 (in Chinese)
|
| 8 |
Mao J B, Song G Z, Luo M C (1999). A comparison study on the ecologicaleffects between mixed and monocultured stands of Pinus armandii. J SouthwestFor Coll, 19(3): 156–160 (in Chinese)
|
| 9 |
Thompson G H, Steiner F R (1997). EcologicalDesign and Planning. New York: John Wiley & Sons, Inc
|
| 10 |
Wang Y X, Dong J W, Wang Y Z (2005). Relationship between city green landand urban heat island effect. Subtrop PlantSci, 34(4): 55–59 (in Chinese)
|
| 11 |
Yan M, Xiong Z H (2005). Eco-effectof the mixed woodland of P. armandii and P. adenopoda Maxim.J Anhui Agric Sci, 33(8): 1408–1409 (in Chinese)
|
| 12 |
Yang C (2003). Ecology Experimentation and Practice. Beijing: Higher Education Press (in Chinese)
|
| 13 |
Zhou L C, Shi W Y, Xue W J, Wang T H, Ge Z M, Zhou H, Zhong Y K (2005). Relationshipbetween vegetation structure and the temperature and moisture in urbangreen spaces of Shanghai. Chin J Ecol, 24(9): 1102–1105 (in Chinese)
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