Community Land Research Articles

The Communal Roots of Mexico’s Maquila Industry: Urbanization, Land, and Inequality in Ciudad Juárez, 1960–2000

Abstract This article analyzes the urbanization and privatization of communal lands (ejidos) in Ciudad Juárez, Mexico, via a computer vision model that utilizes Google Street View (GSV) and Geographic Information System (GIS) imagery. Our innovative methodology reveals how processes of ejidal urbanization in Mexico’s northern borderlands contributed to the rise of multinational factories (maquiladoras) and geographies of inequality and violence. Past scholarship on the (d)evolution of ejidal land tenure details how periurban ejidal lands throughout Mexico were often sites of impoverishment and a lack of investment, featuring informal settlement and rapid or chaotic urbanization following the country’s 1960 urban turn. Through its use of novel sources and methods, this article demonstrates that the urbanization process in Juárez’s principal periurban ejidos diverged from this classic model in specific ways. By combining conventional historical sources with visual data like GSV and GIS imagery, Juárez’s former and current ejidal landscapes reveal high levels of investment, formal planning, and infrastructure. We argue that Juárez’s distinctive physical, political, and economic geographies shaped the overwhelmingly industrial, private, and invested character of the city’s (former and current) periurban ejidal lands. This process occurred via a globalized modernization regime that forged disparate landscapes of investment and inequality beginning in the 1950s.

The status of conservation and management of indigenous sheep breeds in South Africa - A review

Indigenous sheep breeds in South Africa play an important role in local food security and they are adapted to local conditions. Their genetic and cultural values have to be recognised for national importance. The conservation of these breeds is very critical as most of them are already classified as endangered. The South African government has the initiative to attempt the conservation of these animals; however, it comes with several challenges. In addition to funding, breed conservation demands farmers to understand and recognise the role of such breeds in society. This is especially crucial in the rural communal lands where breeds are kept. Farmers that raise indigenous breeds should be taught the necessity of maintaining the purity of these breeds. Indigenous sheep breeds in South Africa are not favored by the commercial farmers and thus they are more vulnerable. This review outlines the nature of sheep farming and the conservation status of four indigenous sheep breeds in South Africa. The effort and challenges that are met in current conservation arrangements are discussed. Moreover, we emphasise on the conservation techniques that are employed in South Africa.

Centering Afro-Colombian Lideresa Felicita Campos: Counter-narrative Comics against Land Grabs

Abstract: This article explores the representation of social leader Felicita Campos in a comic book created by members of her community and a team led by sociologist Orlando Fals Borda and painter Ulianov Chalarka in the early 1970s. The comic portrays Campos, a female Afro-Colombian peasant, fighting for recognition of her community's land ownership rights during the 1920s amidst intense repression and violence. Through critical analysis of visual narratives, historical research, and literary criticism, this article highlights the significance of "Felicita Campos: La mujer campesina en lucha por la tierra" as a mnemonic device for remembering and learning from past struggles against land theft and injustice. It also examines her representation as a female protagonist in relation to the natural and non-human world, comparing it to other female roles and representations in Colombian and Latin American comics. The article emphasizes the importance of amplifying the voices of marginalized communities and promoting social justice through visual media like comics. Overall, this article contributes to the scholarship on Afro-Latin American studies, comics studies, and oral and literary traditions, underscoring the importance of "Felicita Campos: La mujer campesina en lucha por la tierra" as a tool for etnoeducación and generating dialogue and participation among marginalized communities.

Perspectives on the Intersection of Gender, Customary Laws and Land Rights in India

Abstract For centuries, tribal communities in India have maintained distinct social and cultural identities, often with communal land ownership practices that were inclusive of women. The struggle of tribal women in India for land rights is a poignant manifestation of their fight against intersecting forms of oppression rooted in patriarchy, traditional power structures, and historical marginalisation. Given the existing background, this article discusses the intersection of property rights and gender relations in India, making a case for independent property rights for tribal women. It analyses the role of customary laws of inheritance in a legal pluralistic India and its conflict with positive law. The article also focuses on the role of the Indian judiciary in remedying the systemic discrimination against tribal women in India. It analyses the approach of the Indian courts in maintaining a balance between the autonomy granted to the tribes by the Indian Constitution and ensuring justice to women who are victims of such self-governance.

ANALISIS HUKUM PENDAFTARAN TANAH TERHADAP TANAH KOMUNAL

Customary land rights are the highest form of land ownership under customary law, encompassing all land within a specific customary legal jurisdiction, jointly held by members of the indigenous community. The purpose of this research is to find a model for registering communal land in the land registration system and to determine the legal status of communal land in the land registration system. The research methodology used in this study is normative legal research, employing various approaches such as statutory approach and conceptual approach. The legal sources used include primary legal materials, secondary legal materials, and tertiary legal materials. The research findings indicate that the registration of communal land in the land registration system, both de facto and de jure, has been recognized and protected through two regulations that acknowledge the existence of communal land, namely Ministerial Regulation No. 10 of 2016 and the Complete Systematic Land Registration (PTSL) program. Essentially, communal land controlled by indigenous communities will be acknowledged through a decree issued by the regent/mayor/governor for the registered communal land at the local National Land Agency (BPN) office. However, the legal status of communal land in the Land Registration System shows that communal land is not included in the rights to land as regulated in Government Regulation No. 24 of 1997 concerning land registration. Therefore, a revision of the land registration regulation is necessary to ensure the legal certainty of communal land controlled by indigenous communities

Regulatory islands: a case study in tactical community zoning

Despite the clear environmental and economic benefits of denser forms of housing, the ability to construct such housing remains elusive. Restrictive zoning policies and local coalitions of Not in My Backyard activists make the construction of dense housing within established neighbourhoods a near impossibility in jurisdictions throughout the United States. The purpose of this article is to illustrate how architects might leverage community coalition building and the critical interpretation or ‘hacking’ of local zoning ordinances to realise dense, infill housing projects even within otherwise highly conservative policy environments. Using Pier Vittorio Aureli’s history of settlement form and property rights as an initial contextual framework, the article outlines how infill housing might adopt an alternate view of housing development, subverting the primacy typically assigned to individual private property rights and financial speculation. Sited on an infill lot within one of Lincoln, Nebraska’s older neighbourhoods, the project relies on a non-normative, strategic implementation of a Community Unit Plan zoning mechanism to enlist neighbourhood support and establish higher levels of allowable density. This, in combination with the implementation of a Community Land Trust, allows the project to introduce a greater quantity and diversity of housing types that offer possibilities for home ownership, affordable rental opportunities and even temporary or supportive housing in areas historically dedicated solely to single-family housing models. Ultimately, the significance of the project rests not in its formal novelty but in its demonstration of an immediate and attainable means through which denser forms of housing might be realised.

Partisipasi Masyarakat Kampung Arar dalam Pengadaan Tanah untuk Pembangunan Bagi Kepentingan Umum di KEK Sorong Provinsi Papua Barat Daya

Land acquisition for the construction of the Sorong SEZ will be carried out in 2023. In the development plan, the land area required for the Sorong SEZ development plan reaches 523.7 ha, which is the property of the Kami clan. The object of land acquisition for this development consists of community land in Arar village with mixed garden land conditions. This community service activity aims to increase awareness and participation of the Arar Village community in the land acquisition process for public interest development in the Sorong Special Economic Zone (KEK), Southwest Papua. This community activity was held on February 1, 2024, at the Arar Village Meeting Hall and the Sorong KEK location. This community service activity is carried out with several activities, namely: (1) preparation for the activity location and preparation of presentation materials to be delivered; (2) licensing administration and outreach to the Arar Village Government, Babinsa, and the community; (3) carrying out outreach activities at the Arar Village Meeting Hall regarding the importance of community participation in land acquisition for public purposes in the Sorong SEZ; and (4) implementation of activities and inspection of affected locations, significantly growing plants and buildings at the Sorong KEK location. The implementation of land acquisition for the construction of the Sorong SEZ went smoothly, driven by the active participation of the people of Kampung Arar. Therefore, the recommendations for this activity are: (a) Land acquisition activities are very complex activities, requiring good synergy between the government and the community; and (b) In implementing land acquisition activities, the approach taken to the community is not only carried out formally but can also be carried out informally so that the community can fully participate in development in the community area.

Effects of Eight Years of Collecting on the Persistence of Liometopum apiculatum Ant Nests in Rangelands of Charcas, San Luis Potosí, Mexico

In Mexico, the pupae of the reproductive castes of the ant Liometopum apiculatum, escamoles, are highly valued in traditional and gourmet cuisine in the country’s central region. Escamoles are collected during the dry season of the year. The recommended collecting process is to open the ant nest by removing soil until the rearing chamber and the trabeculae with attached escamoles are found. A well-managed ant nest can be collected repeatedly for approximately 12 to 40 years. In Charcas municipality, San Luis Potosí, Mexico, 400 ant nests were located and checked under two land tenure conditions: the Laguna Seca private ranch and the Pocitos communal ejido. The exploitation of escamoles on both tenures was characterized by recording the number of dead and live ant nests. This work evaluated the condition of the ant nests registered in 2012 after eight years. The hypothesis was that ant nests’ survival would be greater in the private than in the communal land. The percentage of living ant nests on the ejido decreased by 35.67%. In contrast, on the ranch, it was 26.88%. The percentage of relocated ant nests was lower on the ejido, 37.43%, compared to the ranch, which was 48.1%. The number of dead ant nests on the ejido increased to 33.51% and on the ranch 15.0%. As predicted by the hypothesis, ant nest survival was higher on the private ranch than on the communal ejido lands because of stronger control of the extraction process.

Modeling the carbon dynamics of ecosystem in a typical permafrost area

Climate change poses mounting threats to fragile alpine ecosystem worldwide. Quantifying changes in carbon stocks in response to the shifting climate was important for developing climate change mitigation and adaptation strategies. This study utilized a process-based land model (Community Land Model 5.0) to analyze spatiotemporal variations in vegetation carbon stock (VCS) and soil organic carbon stock (SOCS) across a typical permafrost area - Qinghai Province, China, from 2000 to 2018. Multiple potential factors influencing carbon stocks dynamics were analyzed, including climate, vegetation, soil hydrothermal status, and soil properties. The results indicated that provincial vegetation carbon storage was 0.22 PgC (0.32 kg/m2) and soil organic carbon pool was 9.12 PgC (13.03 kg/m2). VCS showed a mild increase while SOCS exhibited fluctuating uptrends during this period. Higher carbon stocks were observed in forest (21.74 kg/m2) and alpine meadow (18.08 kg/m2) compared to alpine steppes (9.63 kg/m2). Over 90 % of the carbon was stored in the 0-30 cm topsoil layer. The contribution rates of soil carbon in the 30-60 cm and 60-100 cm soil layers were significantly small, despite increasing stocks across all depths. Solar radiation, temperature, and NDVI emerged as primary influential factors for overall carbon stocks, exhibiting noticeable spatial variability. For SOCS at different depths, the normalized differential vegetation index (NDVI) was the foremost predictor of landscape-level carbon distributions, which explained 52.8 % of SOCS variability in shallow layers (0-30 cm) but dropped to just 12.97 % at the depth of 30-60 cm. However, the dominance of NDVI diminished along the soil depth gradients, superseded by radiation and precipitation. Additionally, with an increase in soil depth, the influence of inherent soil properties also increased. This simulation provided crucial insights for landscape-scale carbon responses to climate change, and offered valuable reference for other climate change-sensitive areas in terms of ecosystem carbon management.

Modeling microbial carbon fluxes and stocks in global soils from 1901 to 2016

Abstract. Soil microbes play a crucial role in the carbon (C) cycle; however, they have been overlooked in predicting the terrestrial C cycle. We applied a microbial-explicit Earth system model – the Community Land Model-Microbe (CLM-Microbe) – to investigate the dynamics of soil microbes during 1901 to 2016. The CLM-Microbe model was able to reproduce the variations of gross (GPP) and net (NPP) primary productivity, heterotrophic (HR) and soil (SR) respiration, microbial (MBC) biomass C in fungi (FBC) and bacteria (BBC) in the top 30 cm and 1 m, and dissolved (DOC) and soil organic C (SOC) in the top 30 cm and 1 m during 1901–2016. During the study period, simulated C variables increased by approximately 12 PgC yr−1 for HR, 25 PgC yr−1 for SR, 1.0 PgC for FBC and 0.4 PgC for BBC in 0–30 cm, and 1.2 PgC for FBC and 0.7 PgC for BBC in 0–1 m. Increases in microbial C fluxes and pools were widely found, particularly at high latitudes and in equatorial regions, but we also observed their decreases in some grids. Overall, the area-weighted averages of HR, SR, FBC, and BBC in the top 1 m were significantly correlated with those of soil moisture and soil temperature in the top 1 m. These results suggested that microbial C fluxes and pools were jointly governed by vegetation C input and soil temperature and moisture. Our simulations revealed the spatial and temporal patterns of microbial C fluxes and pools in response to environmental change, laying the foundation for an improved understanding of soil microbial roles in the global terrestrial C cycle.

Predictions & perceptions: A social-ecological analysis of human-carnivore conflict in Botswana

Human-carnivore conflict in agrarian landscapes poses a significant threat to both large carnivore populations and human livelihoods. Conservation strategies aimed at mitigating conflict often rely primarily on ecological, landscape-scale factors. However, assessing the influence of microhabitat, as well as local variation in human perceptions, can offer valuable insights into the spatial patterns of human-carnivore conflict. The objectives of this study were to identify landscape predictors of livestock depredation risk, characterize microhabitat vegetation patterns at kill sites, and assess the spatial alignment between ecologically-predicted and human-perceived depredation risk. Through use of predation risk modeling, microhabitat pattern analysis, and participatory mapping exercises, we provide insight into the spatial patterns of livestock depredation risk from a multi-carnivore guild in an agrarian landscape located in the Makgadikgadi region of Botswana. We identified 170 depredation events and conducted 63 participatory mapping exercises across community lands situated between two wildlife protected areas. Results indicated anthropogenic landscape variables as the primary drivers of general depredation risk. Notably, distinct spatial patterns emerged between African lion (Panthera leo) and African wild dog (Lycaon pictus) depredation, underscoring the need for species-specific conservation strategies. Microhabitat analysis indicated a preference for lower vegetation cover within the multi-predator guild, suggesting livestock microhabitat risk-mitigation behaviors outweigh predator hunting strategies. While human perceptions generally aligned with ecologically predicted risk, identified divergences emphasize the importance of tailored conflict mitigation strategies to accommodate varying influences. Overall, the findings advocate for species-specific depredation risk analyses and the inclusion of human perceptions for a comprehensive spatial understanding of livestock depredation risk.

Gandhian Intervention and the AFSPA in Northeast India: The Case of Irom Chanu Sharmila

Political violence and conflicts have been predominant features in Northeast India which comprises the states of Assam, Arunachal Pradesh, Nagaland, Meghalaya, Mizoram, Manipur, Tripura, and Sikkim. Resistances in many states arose to counter the perceived loss of land, demographic change, and political, cultural, and economic marginalization of indigenous communities. Some of the resistances had arisen due to the harboring of national visions by groups in Northeast India which were inimical to the visions held by those in the centers of power in the country. There have also been interventions, either official or unofficial or both to resolve these conflicts and violence. Some of these interventions are inspired by Gandhian principles of conflict resolution. This paper intends to provide an insight into one of the Gandhian interventions in Northeast India and discusses Irom Chanu Sharmila’s sixteen years long fast to have AFSPA repealed.

Spatio-Temporal Changes of Vegetation Net Primary Productivity and Its Driving Factors on the Tibetan Plateau from 1979 to 2018

The Net Primary Productivity (NPP) of the Tibetan Plateau (TP) has undergone significant changes since the 1980s. The investigation of the spatiotemporal changes of NPP and its driving factors is of significant importance. Here, we analyze the spatial and temporal trends of Net Primary Production (NPP) and the effects of meteorological factors on the NPP change on the Tibetan Plateau (TP) using version 5.0 of the Community Land Model. The results showed that the average NPP was 256 (g C·m2·yr−1) over the past 40 years, with a continuously increasing trend of 2.38 (g C·m2·yr−1). Precipitation was the main factor affecting NPP changes, temperature had no significant effect on NPP changes, while radiation showed a negative trend. Changes in precipitation, temperature and radiation account for approximately 91%, 5.3%, and 3.8% of NPP variation, respectively. Based on grass coverage, we categorized alpine grasslands into three types: high, medium, and low coverage. Our findings indicate the NPP change of the high-coverage grasslands was mainly affected by precipitation, and then the temperature and radiation. Comparatively, the precipitation change is the driving factor of the increased NPP of low-coverage grasslands, but the temperature increase is the negative factor. Our studies have implications for assessing and predicting vegetation responses to future climate change.

Community’s perception of buren site conservation in Upper Barito, Kalimantan, Indonesia

PurposeThis paper aims to describe and analyse the community’s perceptions of buren sites and how they maintain their value. Buren is a term used by locals to refer to the location of former iron ore smelting in the past. Archaeological findings at smelting sites are slags, ore fragments, tuyeres and smelting furnaces. These sites urgently need to be conserved because the expansion of oil palm plantations and coal mines is ongoing. Buren sites are on community and customary land, so site conservation and development must consider community perception.Design/methodology/approachThe primary data were gathered through interviews, group discussions and observation. A literature review of previous research results obtained secondary data. Interviews and group discussions were digitally recorded and transcribed verbatim as qualitative coding. Thematic content analysis was performed using the concepts of the community’s perception and heritage values.FindingsThe community initially did not care about the buren. Today, they believe the buren as ancestral heritage has historical and educational value. The community hopes the buren can be preserved and developed to reinforce identity and pride as Dayak people and may improve community welfare.Research limitations/implicationsPreserving and developing buren sites necessitate serious planning involving multiple stakeholders, as well as incorporating buren sites into development plans and regional socioeconomic growth. Future research should focus on strategies for preserving and developing buren sites.Practical implicationsResearch results are used to teach students about the history and technology of metal making, instilling a sense of patriotism, strength and pride in Dayak’s identity.Social implicationsThe research has an impact on attitudes and behaviour of the locals. Previously, locals did not care about the buren tend to be afraid to enter it because they believed that buren was a guarded spirit. Now, the community has become concerned, participating in preserving the buren site as providing temporary roofs and making signboards and roads to the site. The community with support from regional officials expects to conserve and utilise the buren site as a tourist destination, combining river tours and forest tourism to create economic opportunities for local tour guides, parking services and boat providers.Originality/valueThe authenticity of this research is the sites are archaeologically valuable and are threatened by the expansion of oil palm plantations and coal mining. This is also the first study of an iron industrial site in Indonesia that addresses this problem and uses this method.

Biophysical Drivers of Seasonal Hysteresis of Urban Heat Islands Across Climates and Urban Landscapes

AbstractThe phenomenon of seasonal hysteresis between urban heat islands (UHIs) and background surface temperature was reported in many studies, but a unifying explanation for the causes of its magnitude, shape and looping direction remained less clear, and the impacts of urban landscapes and background climate on such hysteresis were also the subject of enquiry. Here we performed a systematic study based on a long‐term offline simulation for surface energy budgets, surface air and skin temperature of the urban‐biosphere system in East China. It was carried out with an up‐to‐date land surface model — the CLM5‐LCZs (the Community Land Model version 5 (CLM5) coupled with a newly developed urban canopy model representing diverse urban landscapes with the local climate zones classification scheme). To isolate the causes of UHIs hysteresis, a simplified framework was constructed by combining a mathematical representation of grid/subgrid model outputs, the two‐resistance mechanism method and the time‐lagged cross correlation analysis. The results exhibited distinct hysteresis patterns of UHIs such as twisted, concave‐down, concave‐up and convex‐up curve across diverse background climates and urban landscapes. The basic shapes of hysteresis depict a gradual transition from concave/convex‐up to concave/convex‐down by characterized by a larger winter UHIs from a wetter and warmer climate to a drier and colder climate. Magnitude and seasonality of surface UHIs are separately dominated by the urban‐rural contrast of evapotranspiration and heat storage at daytime and nighttime, whereas across‐climate variations of daytime and nighttime surface UHIs hysteresis are regulated by the phase shift of convection efficiency and anthropogenic heat. Urban landscapes affect the hysteresis mainly by altering the amplitude rather than the shape of looping curves. Our work could provide a fuller picture of how to mitigate urban warming considering inter‐seasonal tradeoffs over a broader region.

The mine, the community, and the chief–mining governance and community representation in conditions of legal pluralism

The corporate oxymoron “mine-hosting communities” implies a mutually beneficial relationship between mining companies and surrounding communities. This belies that many communities resist mining activities and downplays the salience of representation and decision-making power in mine-affected communities. Much mining occurs on lands of traditional communities, where mining companies often treat chiefs as uncontested representatives with decision-making power regarding communal lands, ignoring customary law’s nested and layered nature. Anthropological studies show that positions of traditional authority are currently highly contested due to chiefs capturing the spoils of land commodification and extractive resources. Concentrating on South Africa, this article explores how increasing contestation of the representative power of traditional authorities – in communities, the legislature, and the courts – impacts mining governance and studies the emergence, functioning and downfall of an alternative form of representation of traditional communities. It demonstrates how the hybridity of representative structures and the interaction of statutory and customary laws and institutions result in a configuration of legal pluralism that enables actors to skirt obligations of both legal registers. With its analysis of mining governance in South Africa, this article underscores the importance of a critical understanding of the complex and constantly renegotiated configurations of legal and institutional pluralism.

Profitability of coffee-based agroforestry system to support farmers’ income in Toba Regency, North Sumatra Province, Indonesia

Indonesia is a country with the application of agroforestry systems on community land. People who live in Toba Regency, North Sumatra have long applied coffee-based agroforestry systems and have become a hereditary tradition. The purpose of this study is to determine the profitability of coffee-based agroforestry land and economic value for farmers so that it can be developed further. Coordinate points of land distribution, taken with GPS, conducted interviews, profitability analysis and income analysis to obtain farmer land data. Mapping the distribution of farmers’ coffee-based agroforestry land was mapped with ArcGIS 10.8. Four respondent farmers implemented coffee-based agroforestry (Coffea arabica) with a planting distance of 2 m x 2.5 m combined with Gmelina arborea (white teak), Eucalyptus sp. (eucalyptus), Cinnamomum verum (cinnamon), Pinus merkusii (pine), Psidium guajava (guava), Durio zibethinus (durian), Persea americana (avocado), and others. Based on the profitability analysis, all four farmers’ lands are feasible for further development. The economic value of land depends on the area of land managed by the farmer, where farmers with a land area of 2 Ha have the largest income during 10 years of land management, namely Mr. Bisken with an income of IDR 162,719,500. Utilization of Multi-Purpose Trees Species (MPTS) or plantation and industrial crops can increase the economic value and profitability of farmers’ land.

On the Sensitivity of the Potential Evapotranspiration of Egypt to Different Initial Conditions of the Soil Moisture Using a High-resolution Regional Climate Model

The present study investigated the sensitivity of the Potential Evapotranspiration (PET) of Egypt to different initial conditions of soil moisture using a high-resolution Regional Climate Model (RegCM4). To address this issue, two 32-year simulations were conducted from 1979 to 2010. The first two years were considered as spin-up. In the first simulation, the RegCM4 was initialized with the satellite product ESACCI (ESA) and the RegCM4 was initialized with version 3 of the Century Reanalysis Product (CEN) in the second simulation. The PET was computed using a calibrated version of the Hargreaves–Samani (HS) equation. In the two simulations, the RegCM4 was configured with the Community Land Model version 4.5 (CLM45). Era-Interim Reanalysis of 1.5 degrees (EIN15) was used to downscale the RegCM4 with 25 km grid spacing. The ERA5-based product (ERA5) was used as the observational dataset. The results showed that switching between ESA and CEN didn’t induce a notable influence on the daily maximum air temperature. Regarding the daily minimum air temperature, the CEN outperforms the ESA concerning the Climate Research Unit (CRU). In comparison with the ERA5 product, the CEN was able to reduce the PET negative bias (0.8 to 1.8 mm day-1) better than the one noted in the ESA (0.8 to 3 mm day-1). On a point scale, the performance of the ESA/CEN varies with the location and month. Such a point was confirmed using different statistical metrics such as mean bias, Pearson correlation coefficient and standard deviation ratio. In conclusion, the CEN can be recommended to initialize the RegCM4 to ensure a reliable estimation of the PET of Egypt either in the present climate or under different future scenarios.

Responses of vegetation photosynthetic processes to aerosol-induced direct radiative effect in China

Aerosols play an essential role in the energy cycle of land-atmosphere systems through interactions with radiation and clouds. Aerosol-induced direct radiative effect (ADRE) has a large effect on the photosynthetic processes of vegetation in terrestrial ecosystems. We used the Fu-Liou radiation transfer model integrated with the Community Land Model (CLM) to quantify ADRE and the responses of vegetation photosynthetic processes to ADRE in China from 2001 to 2014. The aerosols exhibited a positive effect on the diffuse fraction and it increased at first and decreased later. Positive impacts of ADRE on the leaf area index (LAI) of both sun (LAISUN) and shaded leaves (LAISHA) were captured in most areas of China, with increases of 0.01 and 0.09, respectively. The changes in LAI caused by ADRE were consistent with aerosol loading in northern and eastern China. In addition, due to the large decrease in total radiation caused by aerosols, ADRE reduced the photosynthetic rate of sun leaves. However, when the aerosol optical depth (AOD) ranged from 0.50 to 0.57, ADRE had positive effects on the photosynthetic rate of shaded leaves, and the AOD interval for positive impacts on the photosynthetic rate was different in each subregion of China. Mechanistic analysis found that ADRE could reduce the ribulose 1,5-bisphosphate (RuBP) carboxylase-limited rate of carboxylation and enhance the light-limited rate. When the AOD was around 0.47, the positive impacts of ADRE on the light-limited rate peaked throughout China (∼0.149 μmol m−2 s−1).

Settlement of Customary Law Community Land Disputes in Byosi Village Keerom Regency Perspective of Regulation of the Minister of State for Agrarian Affairs/KBPN Number 5 of 1999

Customary land disputes occur in customary law communities in Byosi village, Keerom Regency, where customary land ownership often overlaps in the same location or place and can be owned by two or more people. This is what causes problems and there are disputes over customary land between customary law communities. The aim of this research is to determine the resolution of disputes over overlapping customary land ownership among customary law communities in Byosi Village, Keerom Regency. This research method is normative juridical and empirical, a research method that refers to legal norms contained in statutory regulations, library materials, written regulations or other legal materials that are secondary in nature and also realities that occur in the midst of Byosi traditional law community, Keerom Regency. The results of this research reveal that the resolution of disputes over overlapping customary land ownership in Byosi Village was carried out using deliberation which was chosen because it suited the character and way of life of the traditional law community in Byosi Village which was familial in nature, compared to resolving disputes through court institutions which tended to be confrontational in nature. , takes more into account winning and losing, takes into account more realistic aspects and ignores the social elements in traditional communities which are familial in nature.