Ecological Analysis of Disturbance and Disturbance Intensity Estimates for Rainwater Harvesting
Yubang Liu1, Chuan Liang2, Chengming Ye3, Jie Xiang4
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1College of Water Resource & Hydropower, Sichuan University, Chengdu Sichuan 610065, China
Technology Department, Chengdu University of Technology, Chengdu Sichuan 610051, China
2College of Water Resource & Hydropower, Sichuan University, Chengdu Sichuan 610065, China
3Key Laboratory of Earth Exploration and Information Technology of the Ministry of Education,
Chengdu University of Technology 610059, China
Institute of Mountain Hazards and Environment, CAS, Chengdu Sichuan 610041, China
4Chongqing Water Resources and Electrical Engineering College, Chongqing 402160, China
Submission date: 2014-01-22
Final revision date: 2014-09-12
Acceptance date: 2014-09-23
Publication date: 2015-05-20
Pol. J. Environ. Stud. 2015;24(3):1153-1158
From an ecological perspective, the nature of rainwater harvesting with the characteristics of artificial disturbance is a manual disturbance. So it is very important to confirm the degree of ecological disturbance that occurs due to rainwater harvesting. Drawing from ecological disturbance theory, we can utilize both the distance method and dynamic curve method to estimate the level of ecological disturbance and degree of rainwater harvesting with a historical reference point value of the environment as a frame of reference, and with the 20 indicators such as surface runoff and evaluation index. Our examples show that the distance method and dynamic curve method are feasible for evaluating the ecological disturbance degree of rainwater harvesting. There are also research-scale effects in the study of ecological disturbance of rainwater harvesting that embody the comparability of different spatial and temporal ecological disturbance degrees. The comparability of ecological disturbance degrees of rainwater harvesting in an area at different scales or in different areas at the same scales is not strong, but it also generates some useful reference values. The ecological disturbance measurement in the same study area and at the same research-scale at different historical periods can be compared.
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