Lisma G Safitri | Université Paul Sabatier de Toulouse (original) (raw)

Papers by Lisma G Safitri

Oil palm (OP) plantations account for 1.7 % of global CO2 emissions. Numerous studies have focuse... more Oil palm (OP) plantations account for 1.7 % of global CO2 emissions. Numerous studies have focused primarily on greenhouse gas (GHG) emissions from peatlands, constituting 20% of total OP area in the two largest OP producing countries, Indonesia and Malaysia. Few studies have investigated the potential for reducing GHG emissions in OP plantations. Strategies to reduce emissions and sequester carbon must consider how different practices affect production and the environment. Understanding the spatial distribution of GHG intensity and how the environment affects GHG intensity is therefore key to sustainable oil palm production.GHG intensity was used as a metric to map the potential for sustainable OP plantations. GHG intensity represents the GHG emissions / removals (ton C ha-1) per unit of oil palm yields (ton ha-1). The approach for analysing the change in GHG emissions/ removals, referred to as the IPCC tier 1 method, is based on changes in soil organic carbon due to C and N emissions in drained peatlands and the associated change in aboveground biomass due to land use change. Changes in GHG intensity were investigated spatially for a case study in an industrial OP plantation located in Riau Province, Indonesia, from 2015 to 2019. Linear regression was used to analyse the relationships between GHG intensity and agri-environmental variables including NDVI, NPP, GPP, evapotranspiration, soil moisture in the root zone, soil moisture in deeper layer, C and N emissions from organic soils, and soil organic carbon (SOC).The results show that around 90% of the new oil palm plantations in 2019 were converted from timber plantation, swamp scrubland, and bare land in 2015. Consequently, biomass growth from land use change acted as a carbon sink in this period. However, drained organic soils contributed significantly to GHG emissions. The change in GHG intensity in OP plantation in this study varied spatially from emitting (0.19 to 4.10 Ton C eq Ton-1 yields) to removing the GHG (0.23 to 2.40 Ton C eq Ton-1 yields). Among the environmental variables, NDVI and soil moisture showed the strongest relationship with GHG emissions/ removals (R2 = 0.23, p value = < 2.2e-16) and yields (R2 = 0.2 p value = < 2.2e-16) in OP plantations.These initial findings are advantageous for spatially identifying potential OP plantations that remove or emit GHG. Understanding the relationship between GHG emissions/removals and yields to environment variables provides insight into monitoring and enhancing OP sustainability, both from production and environmental perspectives. Future work will examine non-linear approaches to better model this relationship.

Jurnal Teknik Pertanian, Sep 30, 2020

IOP conference series, Feb 1, 2020

IOP conference series, Mar 1, 2018

Root arhitecture is affected by watertable level, characteristic of soil, organic matter and also... more Root arhitecture is affected by watertable level, characteristic of soil, organic matter and also the crop stages. Root architecture spread horizontally and vertically which each consist of primary, secondary, tertiary and quaternary downward root. The oil palm root observation with variation of crop stage and soil type showed that the root of oil palm plant year 2008 on spodosols soil spread along 650 cm horizontally from the trunk and penetrate downward in range of 9-28 cm vertically. Planted in the same type of soil, the root of oil palm plant year 2004 spread along 650 cm horizontally and reached to downward in a larger range from 3 to 57 cm vertically. As a comparison, the root architecture of oil palm on inceptisols soil established the range much greater vertically than the previous. The root of oil palm plant year 2008 spread along 640 cm horizontally and penetrate downward in range of 52-90 cm vertically. With the variation of crop age, the root of oil palm plant year 2003 spread along 650 cm horizontally and reached to downward in a larger range from 150 to 200 cm vertically. Based on this study, root architecture of oil palm was varied and need to be detailed. The precise root architecture of oil palm allows a better understanding on hydrological properties of oil palm root particularly which is cultivated on soil type vulnerable to drought. Referring to this root architecture, it was enable to develop the study on early drought detection of oil palm to optimise production and towards oil palm sustainability.

Jurnal Teknik Pertanian, Jun 30, 2019

SINERGI

Flood is a general issue that can lead to the life and safety of residents. One of the problems i... more Flood is a general issue that can lead to the life and safety of residents. One of the problems is the lack of capacity in the drainage system in a residential area. This paper will analyze the drainage system based on the capacity in one of the residential clusters. The method for the drainage system performance in hydrology analysis was carried out with Log Person, and the return period for rainfall duration is ten years (R10) for hydraulic analysis using drainage system modeling with EPA – SWMM 5.1. The result based on hydrological is the precipitation for flood forecasting is 159.79 mm. It is found that the drainage capacity is filled in downstream of the main drain with a maximum discharge of 2.726 m3/s and secondary drains with a maximum discharge of 0.624 m3/s. Improvements were made to resolve the insufficiency of the existing channels by running two different scenarios: (1) Re-design the dimensions of the main and secondary channels, (2) Implement a detention pond, as well ...

3RD INTERNATIONAL CONFERENCE OF BIO-BASED ECONOMY FOR APPLICATION AND UTILITY

IOP Conference Series: Earth and Environmental Science

Massive issues on significant water used by oil palm trees suggest further estimation of water ex... more Massive issues on significant water used by oil palm trees suggest further estimation of water exploited by oil palm trees. This research employed sap flow technique using thermal dissipation probes (TDP), compared to Penman-Monteith equation as the benchmark. Water utilization by plants was studied through evapotranspiration, to investigate their water footprint and water productivity. Field study was carried out in a 17 year old oil palm plantation in Siak, Riau, Indonesia. Sap flow measurement was carried out on the 17th frond over sapric peat soil during 7th January - 18th March 2019. Water used from 19th oil palm was 40.97±6.63 L day−1 equals to 0.51±0.083 mm day−1 (mean ±SD). While, estimation based on Penman-Monteith equation was 286.3 ± 64.078 L day−1 equals to 3.58±0.80 mm day−1 (mean ±SD). Total accumulated water from Penman-Monteith equation (286.3 L day−1) was considerably higher than the one from sap flow measurement (41 L day−1). The result showed that water footprint ...

Journal of Environmental and Agricultural Studies, 2022

The water economic value nowadays is relatively still low considering the limited understanding o... more The water economic value nowadays is relatively still low considering the limited understanding of water economic value due to the lack of interest from the people to the water resource system, particularly in a watershed. The increase of space demand in catchment areas which has the hydrological function to support water availability, has caused an impact on water availability. To improve the role of society in watershed protection and management, this research studied the water economic value from a society point of view. The relation among the variables to the water economic value could bring the ideas on how to improve the society understanding of water economic value. A better understanding of the water economic value of the society could enhance their role in watershed protection and management to support the watersheds carrying capacity as the supplier of water availability of current and future. The method used in this research was explanatory research which explains the cau...

Seminar Nasional Perteta, May 3, 2019

IOP Conference Series: Earth and Environmental Science, 2022

There are significant studies that have quantified oil palm water footprint as an indicator of en... more There are significant studies that have quantified oil palm water footprint as an indicator of environmental sustainability but an estimation of water footprint under varying soil types furthermore is still limited. The objectives of the study were to estimate whether annual variations of soil type and yields significantly effects for the oil palm water footprint. The data from three types of soil (spodosol, inceptisol, ultisol) were collected from an oil palm plantation in Pundu village, Central Kalimantan, Indonesia. To perform the water footprint analysis we utilize water balance accounting equations via application Cropwat 8.0. From that, we determine the crop irrigation scheduling to compute the blue, green, and grey water footprint of oil palm fresh fruit bunch in the area. Our analysis found that the actual evapotranspiration of spodosol and inceptisol have the same value: 1242 mm/year whilst ultisol is 1239 mm/year. The total water footprint of oil palm varied considerably w...

Jurnal Keteknikan Pertanian, 2021

The lack of water resource in these past decades encourages the implementation of the precision a... more The lack of water resource in these past decades encourages the implementation of the precision agriculture system towards the sustainability in palm oil plantation. Therefore, it requires a specific information about the palm oil performance regarding the water balance system that affect the water consumption through the plant root water uptake. However, the prediction of root water uptake distribution is still a challenge. Another method to investigate the soil water dynamics under the plant root system is through the numerical simulations that are widely use to assess the soil water flow of the plant. In alignment with the idea of promoting the sustainable palm oil plantation, the investigation of root water uptake and water content under oil palm tree is highly demanding. As an introduction, through this study, it is find of interest to simulate the root water uptake and water content pattern of oil palm tree using the 2D simulation soil-water flow. The study was performed by a...

The rapid expansion of oil palm plantation areas in Indonesia is taking place every year. The imp... more The rapid expansion of oil palm plantation areas in Indonesia is taking place every year. The impact is the emergence of various issues and opinions regarding the high environmental damage caused by excessive use of water by the crops. The water footprint scenario can be used to explain the usage of water for the oil palm. This is defined as the volume of water used to obtain one ton of fresh fruit bunches (FFB) in m3 yield-1 unit. The water footprint includes the green (water from precipitation), blue (water from surface and ground water resources) and grey water footprints (water used to dissolve fertilizers, pesticides and other chemical compounds). Based on these issues, this study was conducted to obtain the value of oil palm water footprint, in the case study area in Pundu, Central Borneo. Data used include climate, FFB production and the use of fertilizers and pesticides. The results show that the water footprint of oil palm is 1002.1 m3 ton-1 with the following plantation co...

International Journal of Engineering Technology and Sciences, 2018

The water content distribution in root zone of oil palm crop is substantial for predicted the cro... more The water content distribution in root zone of oil palm crop is substantial for predicted the crop water usage both for productivity and environmental issues. The varying condition of climate, soil properties, crop stage, ground water existing of oil palm cultivation require the specific water balance analysis model which can evidence the precision condition of water content in root zone. The oil palm water balance tool was developed by inputting the data base including climate, soil properties, crop stage, root density and root zone layer as well. The data was generated through the reference vapotranspiration process by Penman Monteith equation, set parameter of van – genuchten and water flow analysis by Richard equation to bring about the output data in hourly time step which consisted of ETo, soil moisture, cumulative drainage flux, cumulative capillary flux and cumulative water content - rainfall in three root zone. The first, second and third root zone were determined variously...

IOP Conference Series: Earth and Environmental Science, 2019

The varying condition of climate, soil properties, crop stage, ground water existing in oil palm ... more The varying condition of climate, soil properties, crop stage, ground water existing in oil palm cultivation require the specific water balance model to perform the precision crop water use. The purposes for this research were to develop oil palm water balance model for calculating the hydrological parameter of oil palm and analysing oil palm water footprint and root water uptake distribution in root zone. The model of oil palm water balance was developed through the following step: oil palm root architecture study, instrument installation and data observation, model development and calibration. The oil palm water balance tool was developed by inputting the data base including climate, soil properties, crop stage, root density and root zone layer as well. The results in the case for 11th year oil palm tree on soil type ultisol in Central Kalimantan during the simulation climate data pointed out that the average root water is 3.46 mm/day and distributed 63% on 2st root zone. From the...

Various environmental challenges, related to oil palm commodity has became a major environmental ... more Various environmental challenges, related to oil palm commodity has became a major environmental challenge to oil palm production. The aim and objective of this study is to analyze the actual water footprint of oil palm based on root water uptake under varying crop age and soil type. The research was conducted in Pundu Village, Central Kalimantan. The methodology adopted in carrying out this study consists of various stages which includes observing soil moisture, rainfall, and water table, ETo, root water uptake and oil palm water footprint. The highest rate of water consumption was the 13 years oil palm on spodosol soil type with an average daily rate of 3.73 mm/day. The lowest evapotranspiration was represented by the 7th year oil palm on spodosol with an average rate of 3.07 mm/day. The total water footprint value obtained was between 0.56 – 1.14 m3/kg for a variety of plants with various age and soil types. It can be deduced that the water footprint value of oil palm vary for di...

Oil palm (OP) plantations account for 1.7 % of global CO2 emissions. Numerous studies have focuse... more Oil palm (OP) plantations account for 1.7 % of global CO2 emissions. Numerous studies have focused primarily on greenhouse gas (GHG) emissions from peatlands, constituting 20% of total OP area in the two largest OP producing countries, Indonesia and Malaysia. Few studies have investigated the potential for reducing GHG emissions in OP plantations. Strategies to reduce emissions and sequester carbon must consider how different practices affect production and the environment. Understanding the spatial distribution of GHG intensity and how the environment affects GHG intensity is therefore key to sustainable oil palm production.GHG intensity was used as a metric to map the potential for sustainable OP plantations. GHG intensity represents the GHG emissions / removals (ton C ha-1) per unit of oil palm yields (ton ha-1). The approach for analysing the change in GHG emissions/ removals, referred to as the IPCC tier 1 method, is based on changes in soil organic carbon due to C and N emissions in drained peatlands and the associated change in aboveground biomass due to land use change. Changes in GHG intensity were investigated spatially for a case study in an industrial OP plantation located in Riau Province, Indonesia, from 2015 to 2019. Linear regression was used to analyse the relationships between GHG intensity and agri-environmental variables including NDVI, NPP, GPP, evapotranspiration, soil moisture in the root zone, soil moisture in deeper layer, C and N emissions from organic soils, and soil organic carbon (SOC).The results show that around 90% of the new oil palm plantations in 2019 were converted from timber plantation, swamp scrubland, and bare land in 2015. Consequently, biomass growth from land use change acted as a carbon sink in this period. However, drained organic soils contributed significantly to GHG emissions. The change in GHG intensity in OP plantation in this study varied spatially from emitting (0.19 to 4.10 Ton C eq Ton-1 yields) to removing the GHG (0.23 to 2.40 Ton C eq Ton-1 yields). Among the environmental variables, NDVI and soil moisture showed the strongest relationship with GHG emissions/ removals (R2 = 0.23, p value = < 2.2e-16) and yields (R2 = 0.2 p value = < 2.2e-16) in OP plantations.These initial findings are advantageous for spatially identifying potential OP plantations that remove or emit GHG. Understanding the relationship between GHG emissions/removals and yields to environment variables provides insight into monitoring and enhancing OP sustainability, both from production and environmental perspectives. Future work will examine non-linear approaches to better model this relationship.

Jurnal Teknik Pertanian, Sep 30, 2020

IOP conference series, Feb 1, 2020

IOP conference series, Mar 1, 2018

Root arhitecture is affected by watertable level, characteristic of soil, organic matter and also... more Root arhitecture is affected by watertable level, characteristic of soil, organic matter and also the crop stages. Root architecture spread horizontally and vertically which each consist of primary, secondary, tertiary and quaternary downward root. The oil palm root observation with variation of crop stage and soil type showed that the root of oil palm plant year 2008 on spodosols soil spread along 650 cm horizontally from the trunk and penetrate downward in range of 9-28 cm vertically. Planted in the same type of soil, the root of oil palm plant year 2004 spread along 650 cm horizontally and reached to downward in a larger range from 3 to 57 cm vertically. As a comparison, the root architecture of oil palm on inceptisols soil established the range much greater vertically than the previous. The root of oil palm plant year 2008 spread along 640 cm horizontally and penetrate downward in range of 52-90 cm vertically. With the variation of crop age, the root of oil palm plant year 2003 spread along 650 cm horizontally and reached to downward in a larger range from 150 to 200 cm vertically. Based on this study, root architecture of oil palm was varied and need to be detailed. The precise root architecture of oil palm allows a better understanding on hydrological properties of oil palm root particularly which is cultivated on soil type vulnerable to drought. Referring to this root architecture, it was enable to develop the study on early drought detection of oil palm to optimise production and towards oil palm sustainability.

Jurnal Teknik Pertanian, Jun 30, 2019

SINERGI

Flood is a general issue that can lead to the life and safety of residents. One of the problems i... more Flood is a general issue that can lead to the life and safety of residents. One of the problems is the lack of capacity in the drainage system in a residential area. This paper will analyze the drainage system based on the capacity in one of the residential clusters. The method for the drainage system performance in hydrology analysis was carried out with Log Person, and the return period for rainfall duration is ten years (R10) for hydraulic analysis using drainage system modeling with EPA – SWMM 5.1. The result based on hydrological is the precipitation for flood forecasting is 159.79 mm. It is found that the drainage capacity is filled in downstream of the main drain with a maximum discharge of 2.726 m3/s and secondary drains with a maximum discharge of 0.624 m3/s. Improvements were made to resolve the insufficiency of the existing channels by running two different scenarios: (1) Re-design the dimensions of the main and secondary channels, (2) Implement a detention pond, as well ...

3RD INTERNATIONAL CONFERENCE OF BIO-BASED ECONOMY FOR APPLICATION AND UTILITY

IOP Conference Series: Earth and Environmental Science

Massive issues on significant water used by oil palm trees suggest further estimation of water ex... more Massive issues on significant water used by oil palm trees suggest further estimation of water exploited by oil palm trees. This research employed sap flow technique using thermal dissipation probes (TDP), compared to Penman-Monteith equation as the benchmark. Water utilization by plants was studied through evapotranspiration, to investigate their water footprint and water productivity. Field study was carried out in a 17 year old oil palm plantation in Siak, Riau, Indonesia. Sap flow measurement was carried out on the 17th frond over sapric peat soil during 7th January - 18th March 2019. Water used from 19th oil palm was 40.97±6.63 L day−1 equals to 0.51±0.083 mm day−1 (mean ±SD). While, estimation based on Penman-Monteith equation was 286.3 ± 64.078 L day−1 equals to 3.58±0.80 mm day−1 (mean ±SD). Total accumulated water from Penman-Monteith equation (286.3 L day−1) was considerably higher than the one from sap flow measurement (41 L day−1). The result showed that water footprint ...

Journal of Environmental and Agricultural Studies, 2022

The water economic value nowadays is relatively still low considering the limited understanding o... more The water economic value nowadays is relatively still low considering the limited understanding of water economic value due to the lack of interest from the people to the water resource system, particularly in a watershed. The increase of space demand in catchment areas which has the hydrological function to support water availability, has caused an impact on water availability. To improve the role of society in watershed protection and management, this research studied the water economic value from a society point of view. The relation among the variables to the water economic value could bring the ideas on how to improve the society understanding of water economic value. A better understanding of the water economic value of the society could enhance their role in watershed protection and management to support the watersheds carrying capacity as the supplier of water availability of current and future. The method used in this research was explanatory research which explains the cau...

Seminar Nasional Perteta, May 3, 2019

IOP Conference Series: Earth and Environmental Science, 2022

There are significant studies that have quantified oil palm water footprint as an indicator of en... more There are significant studies that have quantified oil palm water footprint as an indicator of environmental sustainability but an estimation of water footprint under varying soil types furthermore is still limited. The objectives of the study were to estimate whether annual variations of soil type and yields significantly effects for the oil palm water footprint. The data from three types of soil (spodosol, inceptisol, ultisol) were collected from an oil palm plantation in Pundu village, Central Kalimantan, Indonesia. To perform the water footprint analysis we utilize water balance accounting equations via application Cropwat 8.0. From that, we determine the crop irrigation scheduling to compute the blue, green, and grey water footprint of oil palm fresh fruit bunch in the area. Our analysis found that the actual evapotranspiration of spodosol and inceptisol have the same value: 1242 mm/year whilst ultisol is 1239 mm/year. The total water footprint of oil palm varied considerably w...

Jurnal Keteknikan Pertanian, 2021

The lack of water resource in these past decades encourages the implementation of the precision a... more The lack of water resource in these past decades encourages the implementation of the precision agriculture system towards the sustainability in palm oil plantation. Therefore, it requires a specific information about the palm oil performance regarding the water balance system that affect the water consumption through the plant root water uptake. However, the prediction of root water uptake distribution is still a challenge. Another method to investigate the soil water dynamics under the plant root system is through the numerical simulations that are widely use to assess the soil water flow of the plant. In alignment with the idea of promoting the sustainable palm oil plantation, the investigation of root water uptake and water content under oil palm tree is highly demanding. As an introduction, through this study, it is find of interest to simulate the root water uptake and water content pattern of oil palm tree using the 2D simulation soil-water flow. The study was performed by a...

The rapid expansion of oil palm plantation areas in Indonesia is taking place every year. The imp... more The rapid expansion of oil palm plantation areas in Indonesia is taking place every year. The impact is the emergence of various issues and opinions regarding the high environmental damage caused by excessive use of water by the crops. The water footprint scenario can be used to explain the usage of water for the oil palm. This is defined as the volume of water used to obtain one ton of fresh fruit bunches (FFB) in m3 yield-1 unit. The water footprint includes the green (water from precipitation), blue (water from surface and ground water resources) and grey water footprints (water used to dissolve fertilizers, pesticides and other chemical compounds). Based on these issues, this study was conducted to obtain the value of oil palm water footprint, in the case study area in Pundu, Central Borneo. Data used include climate, FFB production and the use of fertilizers and pesticides. The results show that the water footprint of oil palm is 1002.1 m3 ton-1 with the following plantation co...

International Journal of Engineering Technology and Sciences, 2018

The water content distribution in root zone of oil palm crop is substantial for predicted the cro... more The water content distribution in root zone of oil palm crop is substantial for predicted the crop water usage both for productivity and environmental issues. The varying condition of climate, soil properties, crop stage, ground water existing of oil palm cultivation require the specific water balance analysis model which can evidence the precision condition of water content in root zone. The oil palm water balance tool was developed by inputting the data base including climate, soil properties, crop stage, root density and root zone layer as well. The data was generated through the reference vapotranspiration process by Penman Monteith equation, set parameter of van – genuchten and water flow analysis by Richard equation to bring about the output data in hourly time step which consisted of ETo, soil moisture, cumulative drainage flux, cumulative capillary flux and cumulative water content - rainfall in three root zone. The first, second and third root zone were determined variously...

IOP Conference Series: Earth and Environmental Science, 2019

The varying condition of climate, soil properties, crop stage, ground water existing in oil palm ... more The varying condition of climate, soil properties, crop stage, ground water existing in oil palm cultivation require the specific water balance model to perform the precision crop water use. The purposes for this research were to develop oil palm water balance model for calculating the hydrological parameter of oil palm and analysing oil palm water footprint and root water uptake distribution in root zone. The model of oil palm water balance was developed through the following step: oil palm root architecture study, instrument installation and data observation, model development and calibration. The oil palm water balance tool was developed by inputting the data base including climate, soil properties, crop stage, root density and root zone layer as well. The results in the case for 11th year oil palm tree on soil type ultisol in Central Kalimantan during the simulation climate data pointed out that the average root water is 3.46 mm/day and distributed 63% on 2st root zone. From the...

Various environmental challenges, related to oil palm commodity has became a major environmental ... more Various environmental challenges, related to oil palm commodity has became a major environmental challenge to oil palm production. The aim and objective of this study is to analyze the actual water footprint of oil palm based on root water uptake under varying crop age and soil type. The research was conducted in Pundu Village, Central Kalimantan. The methodology adopted in carrying out this study consists of various stages which includes observing soil moisture, rainfall, and water table, ETo, root water uptake and oil palm water footprint. The highest rate of water consumption was the 13 years oil palm on spodosol soil type with an average daily rate of 3.73 mm/day. The lowest evapotranspiration was represented by the 7th year oil palm on spodosol with an average rate of 3.07 mm/day. The total water footprint value obtained was between 0.56 – 1.14 m3/kg for a variety of plants with various age and soil types. It can be deduced that the water footprint value of oil palm vary for di...