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[1]GAO Yang,GAO Jia-rong,CHEN Zi-shan,et al.Analysis on the Environmental Effects of Near-natural Control Measurements in the Suburb River of Peking[J].Research of Soil and Water Conservation,2008,15(05):101-104,108.

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Analysis on the Environmental Effects of Near-natural Control Measurements in the Suburb River of Peking

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 15 Number of periods: 2008 05 Page number: 101-104,108 Column: Public date: 2008-10-20

Title:: Analysis on the Environmental Effects of Near-natural Control Measurements in the Suburb River of Peking

Author(s):: GAO Yang¹, GAO Jia-rong¹, CHEN Zi-shan¹, DUAN Hong-xiang², KOU Zhong-tai²; 1. The Key Laboratory of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China;
2. Soil and Water Conservation Monitoring Station of Huairou District, Beijing 101400, China

Keywords:: stream; near-natural; control; measurements; classical; engineering; control; measurements; natural; situation; environmental; effects

CLC:: X522;X171.1

DOI:: -

Abstract:: In order to comparably analyze the environmental effects of stream near-natural control measurements, this research chose three reaches whose ecosystem are in different degree on Huaijiuhe river in the suburb of Peking. From the upper reach to the lower reach, the first one is Tuanquan reach which is mostly in natural condition and nearly have not been managed. The second one is the key one, called Siduhe reach, which has been managed by near-natural control measurements for two years. The last one is Yiduhe reach, which have been managed by classical engineering control measurements. The monitoring content includes relative humidity, air temperature, soil temperature and plant diversity. The results of this research showed that ① Stream near-natural control measurements increase air relative humidity of stream environment, because the water surface relative humidity of Siduhe reach is five percent higher than the one of Yiduhe reach, at the same time, the land surface relative humidity is ten percent higher, and although the land surface relative humidity of Siduhe reach is lower than natural Tuanquan reach. Its water relative humidity is two percent higher than Tuanquan reach. ② Compared with the classical engineering measurements, stream near-natural control measurements can decrease the air temperature of surrounding environment, meanwhile, regulate the temperature different between riparian and water, the temperature difference of Siduhe reach is 0.5℃, which is only one third of Yiduhe reach. ③ Stream near-natural control measurements also can shorten the temperature difference among different soil layers through restoring the vegetation of riparian, and regulate the temperature of soil layer, keep the soil moisture of deep soil layers. ④ The plant diversity of Siduhe reach which has been managed by near-natural control measurements is three times higher than Yiduhe reach, therefore, we can say near-natural control measurements can keep and restore plant diversity of riparian.

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