Land Systems Group Profile picture
Sep 15, 2022 7 tweets 6 min read Read on X
How did agricultural land use upstream of the Aral Sea change in the last three decades? Here is our new #openaccess paper in @IOPenvironment: “Post-Soviet changes in cropping practices in the irrigated drylands of the Aral Sea basin”: dx.doi.org/10.1088/1748-9… (1/n)
The study area covers 650 000 km2 of drylands in #CentralAsia, covering #Uzbekistan, #Turkmenistan, and #Tajikistan and including the entire #AmuDarya and parts of the #SyrDarya basins. (2/n) Figure 1. Study area with provincial boundaries in Uzbekista
We computed seasonal spectral temporal metrics from the entire #Landsat archive (1987 to 2019) to produce annual maps of cropping practices using #GoogleEarthEngine #GEE. (3/n) Figure 2. Workflow.
Wet season cropping increased until 2000, then stabilized. Dry season cropping is the most extensive category, but gradually declined, particularly during the 1990s. Double cropping expanded particularly rapid after 2000, raising demand for irrigation water. (4/n) Figure 3. Sample-based unbiased area estimates with standard
We use emblematic examples of local changes to highlight underlying change processes. An example is shown here: (5/n)
All resulting data are available at zenodo.org/record/6957723. We hope these data will provide useful input for analyzing crop-water demand and other salient developments in this understudied region (6/n)
The work emerged from a fantastic collaboration between @philrufin, @DanielMu11er @madapegue. Shoutout to @HumboldtEOLab @iamoLeibniz. Comments and critiques welcome! Enjoy reading! (7/7)

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with Land Systems Group

Land Systems Group Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Don't want to be a Premium member but still want to support us?

Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal

Or Donate anonymously using crypto!

Ethereum

0xfe58350B80634f60Fa6Dc149a72b4DFbc17D341E copy

Bitcoin

3ATGMxNzCUFzxpMCHL5sWSt4DVtS8UqXpi copy

Thank you for your support!

Follow Us!

:(