Next Article in Journal
Determining Position Inside Non-industrial Buildings Using Ultrasound Transducers
Previous Article in Journal
Flexible Time-Triggered Sampling in Smart Sensor-Based Wireless Control Systems
Article Menu

Export Article

Open AccessArticle
Sensors 2007, 7(11), 2565-2578; doi:10.3390/s7112565

Mapping and Assessment of Degraded Land in the Heihe River Basin, Arid Northwestern China

College of Population, Resources and Environment, Shandong Normal University, No. 88 Wenhua East Road, Jinan 250014, Shandong Province, P. R. China
*
Author to whom correspondence should be addressed.
Received: 13 October 2007 / Accepted: 30 October 2007 / Published: 31 October 2007
View Full-Text   |   Download PDF [671 KB, uploaded 21 June 2014]   |  

Abstract

Land degradation is a great threat in the Heihe River Basin, located in the aridinland of northwestern China and land desertification is one of the main aspects ofenvironmental changes in this basin. Previous studies have focused on water resourceutilization and soil erosion, but the status of degraded land in the Heihe River Basin, suchas its distribution, extent and precise characteristics is often inadequately known. Based onfield observations and TM images from the year 2003, this study provides classificationand evaluation information concerning the degraded land in the basin of the Heihe River.There are five types of degraded land types in the Heihe River Basin: water eroded in thesouthern mountains, sandified and vegetation degraded near the oases, aridized in the lowreaches, and salinized in the lowlands. The total degraded area covers 29,355.5 km2,22.58% of the land in the study area. Finally, degraded land in the Heihe River Basin wasevaluated according to changes in the physical structure and chemical components of soils,land productivity, secondary soil salt, and water conditions. View Full-Text
Keywords: Degraded land; Heihe River Basin; classification; evaluation; arid northwestern China Degraded land; Heihe River Basin; classification; evaluation; arid northwestern China
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Qi, S.; Cai, Y. Mapping and Assessment of Degraded Land in the Heihe River Basin, Arid Northwestern China. Sensors 2007, 7, 2565-2578.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top