16th INTERNATIONAL SOIL CONSERVATION ORGANIZATION CONGRESS
16º  CONGRESO 
INTERNACIONAL DE LA ORGANIZACION EN CONSERVACION DE SUELO
 
CHAIRMAN:    Erick Zagal
VICE-CHAIRMAN:   Germán Ruiz
 
Organizing Committee 
 
Chilean Society of Soil Science 
Erick Zagal 
Claudio Pérez 
National Forest Corporation 
Samuel Francke 
Celso Carnieletto 
     
Agriculture Ministery of Chile
Agriculture and Livestock Service  
Germán Ruiz 
Mario Lagos 
Mario Ahumada 
Universidad Mayor 
Norma Sepúlveda 
Jorge Wicha
 
Universidad de Chile
Manuel Casanova 
SCIENTIFIC COMITEE 
 
 
Erick Zagal  
University of Concepcion 
ezagal@udec.cl 
 
Germán Ruiz 
Agriculture Ministry of Chile  
german.ruiz@sag.gob.cl E
nglandncia 
Cristian Prat 
Institut de recherche pour le developpment, christian.prat@ird.fr   
olanda paña 
Ildefonso Pla Sentis 
ISCO Board 
ipla@macs.udl.cat 
 
José Luis Rubio 
ISCO Board of Director, President of ESSC jose.l.rubio@uv.es  
Estados Unidos de América  
Samir A. El-Swaify,  
ISCO Board, University of Hawaii, USA, 
elswaify@hawaii.edu  
Verónica Acosta 
USDA, Agr. Research Service, veronica.acosta.martinez@ars.usda.gob 
México  
Jorge Etchevers 
Colegio Post Graduados Chapingo/Montecillo, jetchev@colpos.mx  
Italia 
Miodrag Zlatic 
World Association of Soil and Water Conservation 
miodrag.zla@sbb.rs 
  
Neal Stolpe,  
University of Concepcion 
nstolpe@udec.cl 
 
Cristina Muñoz 
University of Concepcion 
cristinamunoz@udec.cl 
Leandro Paulino 
University of Concepcion  
lpaulino@udec.cl 
 
 
 
Analí Rosas 
University of Concepcion
arosas@udec.cl  
Celerino Quezada 
University of Concepcion 
cequezad@udec.cl  
 
Marcos Sandoval 
University of Concepcion 
masandov@udec.cl 
 
Iván Vidal  
University of Concepcion 
ividal@udec.cl 
 
Juan A. Barrera  
University of Concepcion 
jbarrera@udec.cl 
 
Mario Ahumada  
Agriculture Ministry of Chile 
Universidad Mayor
mario.ahumada@sag.gob.cl 
 
Mario Lagos  
Agriculture Ministry of Chile mario.lagos@sag.gob.cl  
 
Manuel Casanova 
Universidad de Chile
mcasanov@uchile.cl  
 
Samuel Francke  
National Forest Corporation, 
Universidad Mayor
samuel.francke@conaf.cl
 
Celso Carnieletto  
National Forest Corporation,
celso.carnieletto@conaf.cl  
Carlos Ovalle  
Institute of Agriculture Research, Chile. covalle@inia.cl
 
 
 
16th International Soil Conservation Organization 
Congress
 
(The land we 
want for the future must be built today)
 
CONCLUSIONS
From 8 to 12 of November (2010) the 16th   ISCO Congress 
was developed with the presence of XXX scientifics, researchers, postgraduated 
students and professionals. Initially considered the following principal 
topics to be treated:
  - Multidisciplinary assessment 
  of land degradation and desertification at local, national, regional 
  and global scales. 
- 
Interaction between natural 
  ecosystem components (land, water, biodiversity) and socioeconomic indicators and their overall 
  impact on land degradation. 
- Impacts of human mismanagement 
  on natural resources and examples of best management practices in reducing 
  land degradation effects. 
- 
State and development of policy 
  options, management strategies, and guidelines for sustainable 
  natural resources use and management. 
In this context, the Local Steering Committee ISCO-2010 considered defines six Commissions, 
in order to organize many works submitted:
  - 
Erosive soil degradation. (President: Celio Chagas; Secretary: Neal Stolpe)
- 
Biological soil degradation and biological soil constraints (President: Verónica Acosta; Secretary: Cristina Muñoz)
- 
Chemical soil degradation and chemical soil constraints. (President: Samir A. El-Swaify; Secretary: Osvaldo Salazar)
- 
Physical soil degradation and physical soil constraints. (President: Reginaldo Barboza da Silva; Secretary: 
  Marco Sandoval).
- 
Desertification and drylands. (President: Ildefonso Pla Sentís; Secretary: Mario Ahumada).
- 
Institutional and socio-economic 
  issues. (President: José Luis Rubio; Secretary; Samuel Francke). 
The Congress was realized at Campus Huechuraba, Universidad Mayor (Santiago 
of Chile) and the program considered a time schedule divided in:
I. Invited Key Speakers at beginning of each morning 
or afternoon:
  - 
Mr. Rattan Lal.  Cellulosic ethanol and soil quality (Conference 
  in video)
- 
Mr. Carlos Crovetto. The soil. Conservation or improvement.
- 
Mr. José Luis Rubio. Soil conservation as an environmental, social and 
  food security issue.
- 
Mr. Germán Ruíz. Incentive system for the recovery of degraded soils. 
  Public-private joint for improving the soil productivity.
- 
Mr. Walter Luzio. Approach to the distribution of soils in Chile.
- 
Mr. Ildefonso Pla Sentís. Soil and water conservation under future global changes.
- 
Mr. Erick Zagal.  Greenhouse gas emissions in agricultural soils and 
  some of the strategies to mitigate them .
- 
Mr. Samir A. El-Swaify. Human dimensions of soil and water management and conservation.
 
 
 
 
 
 
II. Oral work presentations. Each commission 
worked in three rooms during three days:
| COMMISSION | SESSION | MONDAY 8 NOV | TUESDAY 9 NOV | Thuerday 
  11 nov | 
| ROOM | 
| Erosive soil degradation | Morning | Auditorium | Auditorium | Auditorium | 
| Afternoon | Alerce E-42
 |  | Auditorium | 
| Physical soil degradation and physical constraints | Morning |  |  |  | 
| Afternoon | Auditorium | Auditorium |  | 
| Desertification and drylands | Morning |  |  |  | 
| Afternoon | Araucaria  E-41
 | Araucaria  E-41
 |  | 
| Institutional  and socioeconomic issues | Morning | Araucaria  E-41
 | Araucaria  E-41
 | Araucaria  E-41
 | 
| Afternoon |  |  |  | 
| Chemical soil degradation and chemical constraints | Morning | Alerce E-42
 |  | Alerce E-42
 | 
| Afternoon |  | Alerce E-42
 |  | 
| Biological soil degradation and biological constraints | Morning |  | Alerce E-42
 |  | 
| Afternoon |  |  | Araucaria  E-41
 | 
 
 
 
According to each Commission a total of ?? works were presented and discussed:
| COMMISSION |  | 
| Erosive soil degradation | 19 | 
| Physical soil degradation and physical constraints | 8 | 
| Desertification and drylands | 8 | 
| Institutional  and socioeconomic issues | ? | 
| Chemical soil degradation and chemical constraints | ? | 
| Biological soil degradation and biological 
  constraints | ? | 
 
 
 
 
III. Poster work presentations. During the Congress 
a total of XX posters were presented, which two were prized as (national 
and international) best works:
 
  - 
Sierra 
  C., R. Olivares. CERO LABRANZA CON MANEJO DE RESIDUOS Y LABRANZA CONVENCIONAL, 
  EN VID DE MESA Crimson Seedless, EN LA COMUNA DE MONTE PATRIA.
 
  - 
Gaspar 
  L., A. Navas, D. Walling, J. 
  Machín. 2010. ASSESSING THE EFFECT OF LAND USE ON SOIL REDISTRIBUTION 
  ON MEDITERRANEAN MOUNTAIN SLOPES USING 210Pbex AND 137Cs.
 
IV. Field excursions.  Three travels to different ecological sites were realized to show 
diverse geomorphologic and productive situations in central Chile (Wednesday 
10 Nov.):
 
  - 
Full Day Andean Mountain: Maipo Valley - Winery Concha y Toro - National Forest Reserve (Clarillo River).
- 
Full Day Coastal Range: San Pedro Watershed Erosion Project - Coastal Beach 
  (Santo Domingo)- Leyda Winery.  
- 
Full Day Pacific Ocean: Casablanca Valley- Winery Emiliana- National Forest Reserve  (Peñuela´s Lake).
 
 
All works presented were printed in two documents and distributed:
 
  - 
ISCO-Chile. 2010a. 16th International Soil Conservation Organization Congress Proceeding. Conferences and Abstracts. Casanova 
  M., Ruíz G., Zagal E. (Eds). 17? p.
 
  - 
ISCO-Chile. 2010b. 16th International Soil Conservation Organization Congress Proceeding. Works in extenso. Casanova M., Ruíz G., Zagal E. (Eds). 400 p.
 
A general tour-guide was prepared to Field Excursions:
 
  - 
Casanova M., Salazar O., Ruíz G. 2010. General Overview of Physical Chile for Field workshops, 16th International Soil Conservation Organization Congress. 37 p.
 
Preliminary conclusions within each commission 
were prepared and discussed with assistants, then were presented in 
a plenary session during Friday 12 Nov.:
 
 
Erosive soil degradation Commission. Conclusions
Celio 
Chagas, Neal Stolpe and Christian Prat.
 
Temáticas abordadas en la Comisión de Degradación 
Erosiva de las Tierras:
 
  - 
Políticas para el control de la 
  degradación, transferencia de tecnología y adopción de prácticas incluyendo los problemas 
  institucionales al realizar proyectos de desarrollo sin tener en cuenta 
  la degradación de las tierras.
- 
Estudios integrales de degradación a escala de cuenca, de paisaje 
  y regionales. 
- 
Estudios específicos de interacción entre escurrimiento, erosión y manejo de los suelos.
- 
Pedogénesis y su relación con la degradación de suelos.
- 
Estudios metodológicos, de investigación básica y empleo de modelos predictivos de degradación.
 
Hubo 19 presentaciones orales y 15 pósters sobre 
esta temática. Asistieron a esta Comisión entre 30 y 40 personas, 
que representaron a 11 países: Chile, Venezuela, Colombia, Brasil, 
Argentina, España, Estados Unidos, Austria, Italia, Francia y China.
  
En general se ha reafirmado lo que ya se conocía 
acerca de:
 
  - 
Conocer los tipos y grado de limitaciones de 
  uso del suelo para realizar una planificar racional del mismo, empleando 
  sistemas como la clasificación por capacidad de uso de las tierras y adaptándola de acuerdo a la escala apropiada.  
- 
Se registran menores pérdidas de suelo con buena cobertura 
  de rastrojos, vegetación viva, rugosidad superficial, 
  labranzas conservacionistas  y con prácticas estructurales y complementarias.
- 
Los modelos y los sistemas de información geográfica pueden apoyar la planificación del uso del suelo tomando 
  en cuenta la elección de la escala adecuada. 
- 
Los planes de manejo integrado de cuencas permiten 
  hacer un uso racional de las mismas.
- 
Los planes gubernamentales de conservación de suelos deben basarse necesariamente 
  en conocimientos adecuados acerca de la degradación de las tierras.  
 
Se plantean los desafíos futuros siguientes:
 
  - 
Tener siempre presente que el suelo constituye un organismo vivo.
- Asociar desde un principio a los productores 
  rurales en los planes de manejo integrado de cuencas.
- 
Fomentar la educación en diferentes niveles académicos acerca de las temáticas planteadas respecto del 
  suelo y el agua
- 
Intensificar el conocimiento de la relación suelo/agua.
- 
Tener en cuenta los servicios 
  ecosistémicos del suelo y el agua en 
  los estudios de degradación.
- 
Tender a mejorar el suelo y no solo a conservarlo 
  en la medida que las circunstancias lo permitan, mejorando también la gestión de los recursos hídricos.
- 
Enfocarse más en actuar sobre las causas 
  de la degradación y no solamente en sus consecuencias.
- 
Incorporar la temática del cambio global, la 
  variabilidad climática y la ocurrencia de eventos 
  extremos, en los estudios acerca de la degradación de suelos y aguas. 
- 
Incentivar las políticas que apuntan a las producciones 
  sustentables a nivel de los distintos países.
- 
Considerar la problemática de la desaparición de tierras productivas por 
  efectos del avance de la urbanización y de las vías de comunicación.
- 
Conservar y/o ampliar el número y las superficies destinadas 
  a los campos experimentales donde se prueban prácticas de manejo para el control 
  de procesos degradativos.
- 
Promover la implementación de observatorios para monitorear la evolución a largo plazo del funcionamiento de los sistemas 
  agro-forestal-urbanos. Esto serviría además como referencia a nivel nacional y mundial, en particular 
  respecto de la gestión del carbono.
- 
Promover la investigación acerca de las prácticas de manejo del suelo y el agua que permitan 
  reducir el consumo de energía y hacer un uso eficiente de la misma
- 
Promover la agricultura orgánica y de manera más general sistemas agropecuarios-forestales 
  ecónomos en insumos basados en 
  recursos no renovables (temáticas de plaguicidas y agroquímicos).
- 
Promover la realización de trabajos experimentales 
  que tomen en cuenta los recursos naturales y los aspectos económico-sociales.
- 
Integrar en la legislación las temáticas sobre conservación de suelos y aguas.  
- 
Utilizar los fondos de crédito de carbono para financiar 
  las iniciativas antes mencionadas.   
 
 
Biological/Chemical soil degradation 
and biological/chemical soil constraints Commission. Conclusions.
Verónica 
Acosta, Samir A. El- Swaify, Cristina Muñoz, Osvaldo Salazar and Jorge 
Paolini 
 
  - 
We had very diverse talks 
  during Tuesday morning and Thursday afternoon session of soil biological properties 
  and biological constraints 
- 
Talks provided an overview 
  of soil management in South America, from Brazil and Chile, as affected by no-tillage, manure, biosolids 
  and the combination of no-tillage with crop rotations. 
- 
The talks highlighted the 
  sensitivity of the soil microbial component to management and how they 
  are early indicators of other soil properties, possibly providing indications of changes in soil quality 
  and functioning.
- 
One of the talks was about 
  soil mycorrhizal fungi as affected by no-tillage, as well as other soil 
  properties, on the site maintained by our colleague Mr. Carlos Crovetto 
  from Chequen Chile, who presented o Tuesday morning. 
- 
It was interesting the overview 
  given of the importance of mycorrhiza for plant nutrition and water 
  availability and for the soil nutrient cycling, and the fact that glomalin 
  a product of mycorrhiza can be a good cementing agent for soil aggregation process. 
- 
The speaker Gustavo Curaqueo 
  explained that in this site under pasture, these properties have been 
  increased up to about 6 yrs but there has been a decrease over time 
  up to an assessment of the 20 yrs, which is just a consideration of the compaction reached in 
  this system, and that they are recommending at least some minimum disturbance 
  to aerate the system again and to reduce further compaction. 
- 
Comments were raised on the 
  fact that it is still expected that aggregation, mychorrizal populations levels reached 
  here must be for sure much higher than a soil under intensive tillage. 
  They just do not have a site to compare with.
- 
Another speaker, Claudivan 
  Costa de Lima (pg 81), gave us a very nice overview of the use of several types of compost materials as soil amendments 
  in Brazil, a way to increase soil organic matter, as we know how important 
  SOM is to improve soil water holding capacity and other properties important 
  for plant growth/productivity. 
- 
It was very interesting to learn about the use of different sugarcane 
  products, like the “bagasse” combined with sugarcane ash and chicken manure (Bagazzo 
  de cana, cenizas de bagazo de cana, and estiercol de gallina) as well 
  as this component mixed with inorganic fertilizers (urease, phosphate rocks, etc). 
- 
De Lima emphasized there was 
  higher soil C loss with the use of the compost mixed with inorganic 
  fertilizers (rock powder= polvo de roca y fertilizantes solubles), but 
  the lowest C loss and more changes in the SOM were found with compost having more organic materials. 
- He also emphasized the importance 
  of the management of the compost chemical composition to avoid rapid 
  degradation and potential loss of labile compounds into the nearby ecosystem 
  boundaries.  
- 
This talk emphasizes that we need to expand our understanding 
  of the soil responses to so many options of organic materials we may 
  have depending on the region.    
 
3- talks :
  - 
We found very interesting 
  a talk from Brazil by Bolonhezi, where it is suggested to use sugarcane for biodiesel future increasing demands 
  as an alternative/replacement of the traditional burning practice, and 
  how this practice “Green Harvesting of Sugarcane” ….because it can significantly reduce CO2 emissions compared to burning, plus even more reductions in CO2 emissions are reached under no-tillage compared 
  to conventional tillage. 
 
  - 
Another talk from a region 
  in Chile by Carolina Inostroza, where biosolids from a local industry, 
  which involves no cost of transportation, may be an option for providing some organic matter back to soils that 
  were explained to be severely eroded over 100 yrs of mismanagement.  
 
  - 
I also wanted to add here 
  my talk from another session which is a research on the soil microbial 
  component, which changed in a pasture after 5 yrs only compared to our typical practice 
  of continuous monoculture of cotton, and a rotation of wheat-rye-cotton-fallow 
  periods took longer 7-8 years to differentiate from continuous cotton. 
  Both the pasture and the rotation are seen as an “integrated livestock-cotton system”.  This is a system as an alternative management 
  for monoculture and the intensive tillage applied due to social tradition 
  in the region evaluated in the US.  
- 
We want to emphasize that 
  these talks are examples on how sometimes the options are not easy, may seem to contradict 
  what we consider more conservative practices (biofuels and biosolids, 
  and the case of livestock production which can feed less people that 
  cropping), but perhaps they are option that can be explored with caution, and of course long term evaluation are needed 
  to address soil quality changes and functioning. 
- 
There was another talk by 
  a colleague that could not present in another session about a national 
  program in Chile by CONAF in which they were trying to plant > 1 million ha with Pinus radiata and some other 
  vegetation, and this revegetation after only 5 years successfully 
  increased biomass, surface cover and other parameters. Questions or 
  considerations significant soil conservation efforts is that it would be very good to address the changes in soil microbial 
  properties 
- We had a total of 8 posters 
  related to soil biology (evaluation of greenhouse gas emissions , microbial 
  activity and enzymology)
- 
Within the conclusion of sessions 
  we just had today, there was a suggestion to create a session on “new or unique management practices/technology approaches” that are perhaps not practiced in other regions, 
  for example the talk on “Green Sugarcane harvesting”.  
- 
Overall, it is a common consensus 
  that the soil microbial component is very key to soil nutrient cycling 
  and to accomplish soil detoxification. We want to add that the area 
  of soil biology needs to be explored further, and we hope to get the 
  attention of research presentations in the areas of soil microbial diversity and their link to soil functioning for 
  future talks. 
 
Soil chemistry and soil biology sessions were 
together, and I just wanted to give an overview of the fact that the 
group emphasized the integral link between these 2 soil properties (biological 
and chemical):
 
 
In terms of soil chemistry, this group emphasized the 
 
  - 
Soil salinity as a international 
  problem: add sodicity (alkalinity). Add HCO3 in water to increase soil pH in arid zones
- 
The microbiology aspects were 
  discussed in relation to mycorrhizas as indicators of progress and improvements 
  in soil functioning 
- Impacts of soil chemical properties
 
SOM incorporation was emphasized as the key 
target to increase soil quality (chemical, physical and microbiological 
properties), and a consensus was that soil biology and chemistry are linked by the SOM.  
Thus, composting processes and applications were emphasized as key practices 
to impact directly/first the soil biology and chemistry. The importance 
of incorporation of SOM to restore contaminated sites in the world, 
C sequestration and increase microbial activity and diversity were points 
discussed. 
       
 
 
 
Physical soil degradation and 
physical soil constraints Commission. Conclusions.
Reginaldo 
Barboza da Silva and Marco Sandoval.
 
Dentro de los trabajos se pueden identificar que las temáticas tratadas se 
relacionaron con problemas tanto productivos como ambientales.
 
La tendencia observada en los trabajos presentados muestran una visión 
de la física de suelo más amplia que la tradicional,  cuya preocupación 
anterior se centraba más en  los problemas  de mecánicos, 
hidráulicos e índices físicos de los suelos.
 
Hoy pareciera  que hasta (la física de suelo) asume una integración 
de otros problemas como son  los aspectos ambientales en la producción 
silvoagropecuria sostenible,  que se da respuesta mediante la integración 
de otras disciplinas de manera  de  resolver  de mejor 
manera  los problemas actuales,  además, existe una clara 
tendencia a trabajar con indicadores que son evaluados en campo (datos 
expeditos) y a la búsqueda  de metodologías en los laboratorios 
más rápidas y de menor costo.
 
Las investigaciones también apuntan a dar luces y facilitar la toma de decisiones 
a nivel de políticas públicas, de manera de generar nuevas  o 
cambiar otras, y de esta forma focalizarlas a los problemas reales y 
hacer más eficientes el  siempre escaso apoyo económico proveniente 
de los gobiernos.
 
En la 
Figura siguiente se discute la distribución de la participación 
de las distintas comisiones con relación al total de trabajos presentados 
en el 16º Congreso de la Organización Internacional de Conservación 
de Suelo, ISCO 2010. 
 
 
La participación del área de física correspondió a 14%, esto 
es considerado bajo, sin embargo, se debe entender que ésta es un 
área que habitualmente es relegada, en relación a los financiamientos 
existentes para la investigación.
 
 
Desertification and drylands 
Commision. Conclusions.
Ildefonso 
Pla Sentís and Mario Ahumada.
 
General conclusions
 
  - 
The papers 
  presented were very diverse according with the poor precision in the 
  definition of “desertification”, and represented experiences under very different conditions 
  in  Australia, Asia, Latin América, USA and Africa. The papers 
  varied from analysis of the causes, both climatic and human induced, 
  of desertification, and from the effects of desertification on the biology 
  and C content in the soil, to the test and recommendations of land use 
  and management to prevent and even revert such processes. In all cases, 
  desertification is considered as an advanced process of soil and soil 
  cover degradation. 
- 
The different 
  studies about desertification processes were generally based 
  on the consequences or potential effects of the present or previewed 
  climate changes, taking also into consideration the influence of human 
  activities derived of the population growth and associated social and 
  economical pressures.
- 
Many of 
  the reported causes of the desertification processes are derived of 
  negative changes in the hydrological processes. As a consequence, the 
  studies and practices looking for the prevention and reversion of the 
  desertification processes include the control and improvement 
  of such hydrological processes, specially the ones related with the 
  infiltration, runoff and retention of rainwater in the soil, with the 
  management of irrigation water and drainage, and with the extraction 
  and use of ground water.
- 
Generally 
  the presented papers agreed in that there is a great relation among 
  the processes of soil and land desertification and the decrease of organic 
  matter content and of microbiological activities in the soil. Therefore, 
  the land use and management practices promoting the conservation 
  or recovery of such aspects must contribute to the prevention and reversion 
  of the desertification processes.
- 
There was 
  agreed that frequently the processes of land desertification, at least 
  at short and medium range, are more a consequence of land use 
  and management changes, associated to specific situations of population, 
  social and economic pressures, than to the previewed climate changes. 
  Moreover, the desertification processes are not exclusive of arid and 
  semiarid zones, because with some combinations of soils, topography 
  and land use and management it is possible to reach desertification 
  in areas with more humid climates.
 
Recommendations
 
The 
studies and research about desertification processes have to include 
mainly the hydrological changes caused both by the climate changes and 
by the land use and management, as well as the factors leading to such 
use and management. The recommended solutions for the prevention, control 
and reversion of such processes of desertification must take into consideration 
those aspects. In any case, we have to consider the site specific situations, 
because there are not solutions with universal or permanent application, 
which also have to be adjusted to the changing technological, social, 
economical and political situations.
 
 
 
 
Institutional and socio-economic 
issues Commision. Conclusions.
José 
Luis Rubio and Samuel Francke.
 
Se ha contado con la presentación de trabajos 
de países como Chile, Brasil, México, Venezuela, República Checa y de FAO como 
institución.
 
Se presentan diversas experiencias de proyectos, programas y estudio:
  - 
Recuperación y  rehabilitación en comunidades
- 
Conservación y restauración de suelos degradados para 
  comunidades
 
Para garantizar la sostenibilidad se recomienda su inserción en las políticas públicas 
de conservación de suelos de los diversos países.
 
A partir de las experiencias, de países como  
Chile y México, se desarrollan y aplican sistemas de incentivos para 
la recuperación de suelos degradados, se recomienda evaluar y monitorear el impacto 
de las prácticas, obras y la percepción por parte de las comunidades.
 
En la aplicación de programas de conservación 
de suelos y aguas, se recomienda considerar los principios de adaptación, adopción, replicación, continuidad y motivación de las 
comunidades.
 
Para una gestión integrada y sostenible de conservación de suelos 
se recomienda armonizar las componentes político-institucionales, técnico ambientales y de participación 
social.
 
En el establecimiento, definiciones de directrices y marcos legales 
en materia de conservación de suelos resulta fundamental garantizar 
la multifuncionalidad del recurso suelo 
en los aspectos ambientales, económicos y socioculturales. 
En los ambientales, son de vital  relevancia las  funciones de regulación climática  
y del papel del suelo en el secuestro de carbono.
 
De acuerdo a las experiencias presentadas se constata, como tendencia 
general, que los países se encuentran en una fase de transición desde un modelo 
de desarrollo no conservacionista del suelo hacia un modelo de desarrollo 
de conservación de suelos.
 
Se mantiene en diferentes países un círculo vicioso entre  la 
degradación del suelo y los recursos naturales y la degradación sociocultural.
 
Se  han presentado correlaciones directas y multifactoriales 
entre erosión y marginación social, 
en función del análisis global de deterioro ambiental.
 
Entre las prácticas no sostenibles que afectan a la conservación 
de suelos se encuentra:
 
 
  
- 
El uso de suelo sin considerar su aptitud 
- Los incendios forestales
- 
La deforestación
- 
La quema de residuos orgánicos
- El arado a favor de la pendiente
- Cultivo inadecuado en laderas
- Los monocultivos reiterados
- 
La sobre utilización agrícola ganadera
- 
La expansión urbana sobre las zonas agrícolas.
 
 
Las consecuencias de la aplicación de un modelo 
no conservacionista de un suelo se expresan en:
  - 
Proceso de degradación de suelos y desertificación 
- 
Procesos de colmatación y sedimentación de cuencas hidrográficas
- 
Erosión social o pauperización rural
- 
Migración Campo-Ciudad.
 
Perspectivas de la Conservación de Suelos:
 
1. Modelo de desarrollo para la conservación y restauraciòn del 
suelo: El avance hacia un modelo de desarrollo para la conservación 
de suelo requiere de un cambio cultural “Verde” en los niveles 
políticos, institucionales, técnicos y comunidades, en post 
de un manejo y gestión integrada y sostenible 
del recurso suelo.
 
2. De acuerdo a las experiencias presentadas se recomienda considerar 
prácticas tales como:
  - 
Labranza adecuada (labranza mínima, …)
- 
Agricultura orgánica
- Biofertilizantes
- Compostaje y manejo de residuos.
- 
Técnicas de bioingenieria, mecánicas o hidrotecnias de conservación de suelos y aguas.
- 
Técnicas de control de erosión
- 
Forestación y Reforestación
- 
Revegetación de especies Nativas
- 
Zonas de amortiguación  o Biofiltros.
- Sistemas agrosilvopastorales
- 
Consolidación de tierras (Land Consolidation), 
- 
Entre otras.
 
3. De acuerdo a las presentaciones realizadas se recomienda a la microcuenca hidrográfica como unidad de planificación y gestión 
en base a un micro ordenamiento territorial, para la aplicación de 
técnicas y prácticas de conservación de suelos y aguas.
 
4. Se recomienda la aplicación de programas de capacitación (unidades de demostración 
y énfasis en acciones participativas) e incorporación de los 
programas de conservación de suelos en los sistemas educativos a nivel técnico, 
universitario, educación básica y secundaria que resalta la importancia 
y la multifuncionalidad del recurso suelo. 
Así como también programas de difusión y campañas de sensibilización.
 
 
 
SOME CONCLUSIONS
Jose Luis Rubio.
 President ESSC. Centro de Investigaciones sobre 
Desertificación-CIDE (CSIC, Universidad de Valencia, Generalitat Valenciana)
 
Main global problems
 
  - 
Increase food production to avoid food 
  security problems
- Global climate change
- Water scarcity and water quality
- Land use changes (urban expansion, soil consumption)
- Land degradation-desertification-migrations
- Environmental security
- 
Land contamination, residues and wastes
- 
Loss of biodiversity and landscape quality
- 
Alternative sources of energy: biofuels and 
  H2 cells
 
¡¡¡The answers 
are related to soil¡¡¡
 
Some questions-Challenges. 
 
Expanding the concept of Soil Conservation.
 
  - 
How incorporate the economic value of soil and soil services
- 
How to improve perception of soil as biosphere crucial system
- How to cope with heterogeneity,  methodologies 
  and new technologies-approaches
- 
How to cope with multifunctionallity and other scientific and societal new demands
- 
How influence decision makers
- 
…..
 
The issue today.
 
  - Soil as a crucial natural resource
- Land-soil scarcity
- New soil paradigms : Multifunctional medium
- 
Incorporating soil inputs to environmental 
  global problems: Climate change, Combating land degradation-desertification, 
  food security, water scarcity,…
 
  - 
MORE OPPORTUNITIES 
  THAN EVER BEFORE¡¡¡     Young researchers¡¡¡
 
Research aspects.
 
  - 
Multifunctional approaches-Soil quality
- Integrated approaches for monitoring assessment
- Increased attention to biotic processes and 
  biodiversity
- 
Carbon cycling and storage
- Soil-water relationships
- Sound soil productivity
- Incorporation new technologies and approaches
- 
INNOVATION¡¡¡
The societal and socio-economic 
problems.
 
  - Environmental security-conflicts. Human and 
  socioeconomic consequences
- 
In a economicistic society lets talk economic language: Incorporating economic activities: carbon trading, carbon storage, 
  payment for ecosystem services, certification schemes, economic value 
  to resist erosion,…
- How society benefits in economic terms
- 
Private Sector in Soil Conservation-Bioengineering.
 
The role of SOIL CONSERVATION
 
  - Knowledge and research gaps
- Societal perception
- Protect the sustainability of soil resources 
  trough innovation
- Fill de gap between biophysical processes and 
  socioeconomic context
- 
Improve soil structure and fertility
- Improve soil ecological functions
 
Three main issues for 
soil conservation
 
  - 
Increasing food production trough a more ecological agriculture
- 
Application to ecological regulating functions, biodiversity and landscape
- 
Reinforcing the soil regulation capacity of water resources.