Assessing the elevational relationship with soil physico-chemical properties under traditional large cardamom agroforestry system in the Indian Eastern Himalayas: a case study using machine learning algorithms DOI

Vineeta Vineeta,

Biplov Chandra Sarkar,

Madhav Theeng Tamang

et al.

Environment Development and Sustainability, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 28, 2024

Language: Английский

Securing Nature’s Contributions to People requires at least 20%–25% (semi-)natural habitat in human-modified landscapes DOI Creative Commons
Awaz Mohamed, Fabrice DeClerck, Peter H. Verburg

et al.

One Earth, Journal Year: 2024, Volume and Issue: 7(1), P. 59 - 71

Published: Jan. 1, 2024

The cascading effects of biodiversity decline on human well-being present a pressing challenge for sustainable development. Conservation efforts often prioritize safeguarding specific species, habitats, or intact ecosystems but overlook biodiversity's fundamental role in providing Nature's Contributions to People (NCP) human-modified landscapes. Here, we systematically review 154 peer-reviewed studies estimate the minimum levels (semi-)natural habitat quantity, quality, and spatial configuration needed landscapes secure functional integrity essential sustaining NCP provision. We find that provision multiple is threatened when landscape falls below an area 20%–25% each km2. Five almost completely disappear level 10% habitat. exact required depends local context NCP. Today, about two-thirds lands have insufficient habitat, requiring action regeneration. Our findings serve as generic guideline target conservation actions outside natural areas.

Language: Английский

Citations

22

Estimation of Aboveground Biomass for Different Forest Types Using Data from Sentinel-1, Sentinel-2, ALOS PALSAR-2, and GEDI DOI Open Access
Chu Wang,

Wangfei Zhang,

Yongjie Ji

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(1), P. 215 - 215

Published: Jan. 21, 2024

Forest aboveground biomass (AGB) is integral to the global carbon cycle and climate change study. Local regional AGB mapping crucial for understanding stock dynamics. NASA’s ecosystem dynamics investigation (GEDI) combination of multi-source optical synthetic aperture radar (SAR) datasets have great potential local estimation mapping. In this study, GEDI L4A data ground sample plots worked as true values explore their difference estimating forest using Sentinel-1 (S1), Sentinel-2 (S2), ALOS PALSAR-2 (PALSAR) data, individually in different combinations. The effects types validation were investigated well. S1 S2 performed best with R2 ranging from 0.79 0.84 RMSE 7.97 29.42 Mg/ha, used truth data. While product working reference, range 0.36 0.47 31.41 37.50 Mg/ha. between plot reference shows obvious dependence on types. summary, dataset its SAR better when average less than 150 predictions underperformed across study sites. However, can work source a certain level accuracy.

Language: Английский

Citations

22

Enhanced agricultural carbon sinks provide benefits for farmers and the climate DOI Creative Commons
Stefan Frank, Andrey Lessa Derci Augustynczik, Peter Havlík

et al.

Nature Food, Journal Year: 2024, Volume and Issue: 5(9), P. 742 - 753

Published: Sept. 23, 2024

Language: Английский

Citations

11

Estimation of Aboveground Biomass in Agroforestry Systems over Three Climatic Regions in West Africa Using Sentinel-1, Sentinel-2, ALOS, and GEDI Data DOI Creative Commons
Dan Kanmegne Tamga, Hooman Latifi, Tobias Ullmann

et al.

Sensors, Journal Year: 2022, Volume and Issue: 23(1), P. 349 - 349

Published: Dec. 29, 2022

Agroforestry systems (AFS) offer viable solutions for climate change because of the aboveground biomass (AGB) that is maintained by tree component. Therefore, spatially explicit estimation their AGB crucial reporting emission reduction efforts, which can be enabled using remote sensing (RS) data and methods. However, multiple factors including spatial distributions within AFS, structure, composition, variable extents hinder an accurate RS-assisted across AFS. The aim this study to (i) evaluate potential spaceborne optical, SAR LiDAR estimations in AFS (ii) estimate different various climatic regions. was carried out three regions covering Côte d’Ivoire Burkina Faso. Two reference sources were assessed: derived from field measurements allometric equations predictions GEDI level 4A (L4A) product. Vegetation indices texture parameters generated optical (Sentinel-2) (Sentinel-1 ALOS-2) respectively used as predictors. Machine learning regression models trained evaluated means coefficient determination (R2) RMSE. It found prediction error reduced 31.2% after stratification based on conditions. For prediction, combination random forest algorithm Sentinel-1 -2 returned best score. L4A product applicable only Guineo-Congolian region, but approx. nine times higher than ground truth. Moreover, varied cocoa (7.51 ± 0.6 Mg ha−1) rubber (7.33 0.33 cashew (13.78 0.98 mango (12.82 0.65 Guinean region. farms Sudanian region showed highest (6.59 82.11 ha−1). mainly determined diameter (R2 = 0.45), height 0.13) density 0.10). Nevertheless, RS-based remain challenging spectral similarities between assessment uncertainties should complement maps

Language: Английский

Citations

30

Optimising carbon fixation through agroforestry: Estimation of aboveground biomass using multi-sensor data synergy and machine learning DOI Creative Commons
Raj Kumar Singh, Çhandrashekhar Biradar, Mukunda Dev Behera

et al.

Ecological Informatics, Journal Year: 2023, Volume and Issue: 79, P. 102408 - 102408

Published: Dec. 3, 2023

As agricultural land expansion is the primary driver of deforestation, agroforestry could be an optimal use strategy for climate change mitigation and reducing pressure on forests. Agroforestry a promising method carbon sequestration. With recent advancements in geospatial data science technology, ability to predict aboveground biomass (AGB) assess ecosystem services rapidly expanding. This study was conducted Belpada Block Balangir, Odisha, forest-dominated region eastern India. We recorded species occurrence measured plant parameters, including Circumference at Breast Height (CBH), height, geolocation, 196 plots (0.09 ha) intervention sites noted tree species. used Sentinel-1 Sentinel-2 multi sensor achieve synergy AGB estimation. Three machine learning models were used: Random Forest (RF), Support Vector Machine (SVM), Artificial Neural Network (ANN). The RF model exhibited highest level prediction accuracy (R2 = 0.69 RMSE 17.07 Mg/ha), followed by ANN 0.63 19.35 SVM 0.54, 21.97 Mg/ha. spectral vegetation indices that are (Normalized Difference Vegetation Index (NDVI), Soil-Adjusted (SAVI), Enhanced (EVI), Modified Simple Ratio (MSR), (MSAVI), (DVI), SAR backscatter values, found important variables prediction. findings revealed interventions plantations resulted average stock increase 15 Mg/ha over five years area. Plant Value (PVI), which indicates importance local economy storage, showed Tectona grandis dominant with PVI value (88.35), Eucalyptus globulus (56.87), Mangifera indica (53.75), Azadirachta (15.45). approach enables monitoring efforts systems, thereby promoting effective management strategies.

Language: Английский

Citations

23

Agroforests as the intersection of instrumental and relational values of nature: gendered, culture-dependent perspectives? DOI Creative Commons
Elok Mulyoutami, Hesti Lestari Tata, Yosefin Ari Silvianingsih

et al.

Current Opinion in Environmental Sustainability, Journal Year: 2023, Volume and Issue: 62, P. 101293 - 101293

Published: May 20, 2023

Agroforests exist in many forms, for example, across Indonesia, but are largely absent from policy documents. Development planners have long seen them as backward, agroforests, or domesticated forests, with high (agro) biodiversity, reconcile instrumental (goal-oriented) and relational (harmony-oriented) values of nature various stakeholders. combine farmer-managed, remnant, tolerated spontaneously established trees; they blend market demands local needs labor-efficient, nature-based land use. Could explicit recognition interfacing these values, help achieve the Kunming-Montreal Global Biodiversity Framework? In cultural context, men women may express appreciation agroforest structure function differently. The scarcity remaining natural forests increases agroforests' role diverse reservoirs. under threat publicly subsidized conversion to monoculture tree crop plantations, exposing farmers economic ecological risk. Reimagining biodiversity conservation solutions where agroforests remain part landscape is an opportunity not be missed.

Language: Английский

Citations

21

Guidelines for improved quantification and reporting of carbon stocks and additional carbon storage in agroforestry systems DOI Creative Commons
Rémi Cardinael, Georg Cadisch, Christian Dupraz

et al.

Agroforestry Systems, Journal Year: 2025, Volume and Issue: 99(4)

Published: April 1, 2025

Language: Английский

Citations

1

Classification of agricultural land management systems for global modeling of biodiversity and ecosystem services DOI Creative Commons

Susana López Rodríguez,

L.G.J. van Bussel, Rob Alkemade

et al.

Agriculture Ecosystems & Environment, Journal Year: 2023, Volume and Issue: 360, P. 108795 - 108795

Published: Nov. 2, 2023

Global models of biodiversity and ecosystem services base their calculations on land use classifications, where agricultural is only divided into a few categories management intensity. These classifications were not developed to underpin models. This why crop diversity the presence non-crop plants or livestock in are considered these despite effect they have agrobiodiversity supply services. Therefore, results neglecting current diversified systems diversification practices In this paper, we present new global classification organized as matrix intensity ranges. The based literature review expert interviews illustrated by examples around world. first step build cover maps that consider systems, which could then be used structure makes it flexible adjustable for different purposes, such exploring potential preserving through land-use scenarios assessing trade-offs between diversity.

Language: Английский

Citations

14

Agroforestry as a Key Intervention to Achieve Nationally Determined Contribution (NDC) Targets DOI
Lalisa Duguma,

Peter A. Minang,

Cathy Watson

et al.

Sustainability Sciences in Asia and Africa, Journal Year: 2023, Volume and Issue: unknown, P. 641 - 664

Published: Jan. 1, 2023

Language: Английский

Citations

12

Agroforestry and biodiversity conservation DOI
Donald Mlambo, Allan Sebata, Angella Chichinye

et al.

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 63 - 78

Published: Jan. 1, 2024

Language: Английский

Citations

5