PMID- 31931189
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20200211
LR  - 20200211
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 712
DP  - 2020 Apr 10
TI  - Catchment-scale soil conservation: Using climate, vegetation, and 
      topo-hydrological parameters to support decision making and implementation.
PG  - 136124
LID - S0048-9697(19)36120-0 [pii]
LID - 10.1016/j.scitotenv.2019.136124 [doi]
AB  - The geomorphometric analysis of watersheds provides useful quantitative 
      information on stream hydrology and potential landscape change that can be used 
      by soil conservation decision makers to determine areas prone to land 
      degradation. In this study, we develop a methodology for the assessment of 
      catchment-scale sensitivity to sediment yield using various topo-hydrological, 
      vegetation, and climatic parameters using four multi-criteria decision making 
      (MCDM) techniques: the Technique for Order of Preference by Similarity to Ideal 
      Solution (TOPSIS), Vlse Kriterijumska Optimizacija Kompromisno Resenje (VIKOR), 
      weighted-sum analysis (WSA), and combined factor (CF). To identify the most 
      important factors affecting sediment yield and soil erosion, a model 
      incorporating principle component analysis with MCDM was devised, using 
      infiltration number (IF), drainage density (Dd), length of overland flow (Lo), 
      channel maintenance (C), stream frequency (Fs), and ruggedness number (Rn) as 
      indices of sediment and erosion risk. Data from a previous study that employed 
      the RUSLE3D model and sediment-yield field data were used to validate the 
      results. The TOPSIS model achieved the highest correlation with the RUSLE3D 
      results. The correlation of watershed activities to the experimental erosion and 
      sediment prioritization results is 0.32. The TOPSIS results indicate that all 23 
      sub-watersheds yielded moderate amounts of sediment. Based on the VIKOR method, 
      17.39% (78.96 km(2)) of the region was classified as having very high 
      erodibility, 26.08% (241.93 km(2)) high erodibility, 34.78% (225.95 km(2)) 
      moderate erodibility, and 21.73% (105.05 km(2)) low erodibility. Considering the 
      high sensitivity of Taleghan watershed to soil erosion, it is recommended that 
      conservation efforts be implemented to minimize land degradation in the area. 
      This methodology can be adapted to other regions that lack detailed 
      topo-hydrological, vegetation, or climatic data.
CI  - Copyright (c) 2018 Elsevier B.V. All rights reserved.
FAU - Borji, Moslem Hassangavyar
AU  - Borji M Hassangavyar
AD  - Faculty of Natural Resources, University of Tehran, Iran. Electronic address: 
      mborji68@ut.ac.ir.
FAU - Samani, Aliakbar Nazari
AU  - Samani AN
AD  - Department of Arid and Mountainous Regions Reclamation, Faculty of Natural 
      Resources, University of Tehran, Iran. Electronic address: aknazari@ut.ac.ir.
FAU - Rashidi, Sharareh
AU  - Rashidi S
AD  - Faculty of Natural Resources, University of Tehran, Iran. Electronic address: 
      rashidi.sh@ut.ac.ir.
FAU - Tiefenbacher, John P
AU  - Tiefenbacher JP
AD  - Department of Geography, Texas State University, San Marcos, TX 78666, United 
      States of America. Electronic address: tief@txstate.edu.
LA  - eng
PT  - Journal Article
DEP - 20191214
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
SB  - IM
OTO - NOTNLM
OT  - Land degradation
OT  - Morphometry
OT  - Multi-criteria decision making
OT  - Soil conservation
COIS- Declaration of competing interest I confirm the manuscript that no actual or 
      potential conflict of interest including any financial, personal or other 
      relationships with other people or organizations over the past three years of 
      beginning the submitted work that could inappropriately influence our work.
EDAT- 2020/01/14 06:00
MHDA- 2020/01/14 06:01
CRDT- 2020/01/14 06:00
PHST- 2019/07/24 00:00 [received]
PHST- 2019/12/12 00:00 [revised]
PHST- 2019/12/13 00:00 [accepted]
PHST- 2020/01/14 06:00 [pubmed]
PHST- 2020/01/14 06:01 [medline]
PHST- 2020/01/14 06:00 [entrez]
AID - S0048-9697(19)36120-0 [pii]
AID - 10.1016/j.scitotenv.2019.136124 [doi]
PST - ppublish
SO  - Sci Total Environ. 2020 Apr 10;712:136124. doi: 10.1016/j.scitotenv.2019.136124. 
      Epub 2019 Dec 14.