Navigation Links
Agroforestry systems can repair degraded watersheds
Date:3/27/2014

NAIROBI, Kenya. (27 March 2014) ----Agroforestry, combined with land and water management practices that increase agricultural productivity, can save watersheds from degradation.

A study conducted by the World Agroforestry Centre (ICRAF) in the Gabayan watershed in eastern Bohol, Philippines, has shown that agroforestry systems create a more sustainably managed watershed that allows people living there to benefit from the ecosystem. The benefits include higher crop yields, increased income and resilience to climate change.

Agroforestry is an integrated land-use management technique that incorporates trees and shrubs with crops and livestock on farms.

The study, called Modeling the effects of adopting agroforestry on basin scale surface runoff and sediment yield in the Philippines, uses a computer-based Soil and Water Assessment Tool (SWAT) to simulate the effects of different land uses on watershed hydrology and the ecosystem services provided by the Gabayan watershed. The tool predicts the environmental impact of land use, land management practices, and climate change.

Watersheds are areas of land with streams and rivers that all drain into a larger body of water, such as a bigger river, a lake or an ocean. Watersheds not only supply water for domestic use but also provide a multitude of ecological and cultural services, including water for irrigation and industry, shelter, habitats for biodiversity and, in very poor areas, sources of livelihoods.

Over the years, however, many watersheds throughout the world have suffered from intensive resource extraction and mismanagement. In countries like the Philippines, several watershed areas in the country are now degraded due to deforestation and soil erosion.

The Gabayan watershed incorporates a heavily degraded, multi-use landscape covering over 5000 hectares hosting about 60,000 people whose livelihoods depend on subsistence agriculture

Farmers here have reported environmental problems, such as floods, droughts, reductions in water quality and increases in soil erosion and downstream sedimentation of irrigation networks.

"The degraded watershed has been largely deforested and replaced with extensive agricultural and grasslands over the last half century", says David Wilson, the lead researcher. "It has disrupted the evenness of river flow, resulting in alternate flooding and drought episodes, an accelerated level of soil erosion as well as downstream sedimentation".

SWAT was used to simulate the impacts of current land-use practices and conservation agriculture with agroforestry in strategic locations. The study results showed a significant reduction in sediment yield (20%) and sediment concentration (35%)in the Gabayan watershed under agroforestry and conservation agriculture.

The study was therefore able to provide scientific evidence that agroforestry, combined with improved land management practices, are an effective land-use strategy for the watersheds.

"Specifically, the use of restored areas that have vegetation next to water resources and contour planting in grasslands appear to be the most effective techniques to reduce sediment transfer to the watershed river network", says Wilson.


'/>"/>

Contact: Daniel Kapsoot
D.Kapsoot@cgiar.org
254-725-733-895
World Agroforestry Centre (ICRAF)
Source:Eurekalert  

Related biology news :

1. Towards an agroforestry policy in Indonesia
2. Agroforestry is not rocket science but it might save DPR Korea
3. World Congress on Agroforestry 2014
4. Agroforestry can ensure food security and mitigate the effects of climate change in Africa
5. First International Agroforestry Congress in the Philippines
6. IU biologists offer clearer picture of how protein machine systems tweak gene expression
7. Unexpected crustacean diversity discovered in northern freshwater ecosystems
8. Glacier-fed river systems threatened by climate change
9. Extreme weather threatens rich ecosystems
10. Geographic information systems demonstrate links between health and location
11. Copernicus Award 2012 for German-Polish collaboration in business information systems
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Agroforestry systems can repair degraded watersheds
(Date:5/24/2016)... Ampronix facilitates superior patient care by providing unparalleled technology to leaders of ... the latest premium product recently added to the range of products distributed by Ampronix. ... ... ... Medical Display- Ampronix News ...
(Date:5/12/2016)... WearablesResearch.com , a brand of Troubadour Research & ... Q1 wave of its quarterly wearables survey. A particular ... a program where they would receive discounts for sharing ... "We were surprised to see that so many ... CEO of Troubadour Research, "primarily because there are segments ...
(Date:4/28/2016)... FRANCISCO and BANGALORE, India , ... of EdgeVerve Systems, a product subsidiary of Infosys (NYSE: ... provider, today announced a global partnership that will ... way to use mobile banking and payment services. ... is a key innovation area for financial services, but it ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... June 27, 2016  Liquid Biotech ... funding of a Sponsored Research Agreement with The ... cells (CTCs) from cancer patients.  The funding will ... levels correlate with clinical outcomes in cancer patients ... will then be employed to support the design ...
(Date:6/24/2016)... June 24, 2016 Epic Sciences unveiled ... cancers susceptible to PARP inhibitors by targeting homologous ... (CTCs). The new test has already been incorporated ... multiple cancer types. Over 230 clinical ... response pathways, including PARP, ATM, ATR, DNA-PK and ...
(Date:6/23/2016)... ... June 23, 2016 , ... Mosio, a ... eBook, “Clinical Trials Patient Recruitment and Retention Tips.” Partnering with experienced clinical research ... by providing practical tips, tools, and strategies for clinical researchers. , “The landscape ...
(Date:6/23/2016)... June 23, 2016 /PRNewswire/ - FACIT has announced ... biotechnology company, Propellon Therapeutics Inc. ("Propellon" ... commercialization of a portfolio of first-in-class WDR5 inhibitors ... such as WDR5 represent an exciting class of ... precision medicine for cancer patients. Substantial advances have ...
Breaking Biology Technology: