Specifications

Document type: Journal article (JA)

Publisher: Tsinghua University Press, Beijing, 100084, China

Abstract: This paper considers the existing ecological problem and actual situation of

Ulansuhai Nur, and establishes its ecological protection targets, i. e. storage capacity of 240 - 943

million m3, water stage of 1018.35 - 1020 m, and water quality of class IV. With these targets and

the water balance method, we conclude that a water balance of this lake requires the draining

system to provide it a long-term water supply of 5.48 × 108 m3/a. The lake's water demand by its

ecological environments under class IV quality is a primary representation of its ecological water

demand. Using the environmental diluting method of water demand, we develops an ecological

water demand model for the lake, and its calculations of the lake's ecological demands in 1, 5 and

10 years in the existing conditions are 973, 462 and 438 million m3 respectively. These demands

could be reduced through pollution control, for instance, reduced to 678, 239 and 225 million m3

if the pollutant is cut down by 30%, and further to 607, 176 and 153 million m3 if cut down by

40%. The presented results are essential to the planning of ecological restoration in Ulansuhai

Nur. © copyright.

Number of references: 15

Main heading: Ecology

Controlled terms: Lakes - Restoration - Water quality - Water supply

Uncontrolled terms: Draining systems - Ecological environments - Ecological

problem - Ecological protection - Ecological restoration - Ecological water demand -

Existing conditions - Storage capacity - Water balance - Water balance method -

Water demand

Classification code: 402 Buildings and Towers - 407 Maritime and Port Structures; Rivers

and Other Waterways - 409 Civil Engineering, General - 446.1 Water Supply Systems -

453.2 Water Pollution Control - 454.3 Ecology and Ecosystems

Database: Compendex

Accession number: 20130315915205

Title: Analysis of cracking mechanism at the spandrel of large underground opening in

laminar rock strata

Authors: He, Min1, 2 ; Wang, Mingjiang2 ; Hao, Jungang2 ; Li, Ning1/何敏;王明疆;郝军刚;

李宁

Author affiliation:

1 Institution of Geotechnical Engineering, Xi-an University of Technology, Xi-an 710048, China

2 Northwest Institute of Exploration, Design and Research, CHECC, Xi-an 710048, China

Corresponding author: He, M. (hem@nwh.cn)

Source title: Shuili Fadian Xuebao/Journal of Hydroelectric Engineering

Abbreviated source title: Shuili Fadian Xuebao

Volume: 31

Issue: 6

Issue date: December 2012

Publication year: 2012

Pages: 237-241+185