scholarly journals WATER CARRYING CAPACITY BASED ON ECOSYSTEM SERVICES IN URBAN AGRICULTURE OF PALU

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Nursalam Nursalam ◽  
Nur Edy

Urban agriculture grows increasingly in tropical countries. It develops not only to feed the growth of the population but also to provide green space, biodiversity, and recreational landscaping. However, developing urban agriculture is facing the problem of water provision.  This study examines the existence of agricultural land in Palu, investigates the distribution of agricultural land use in each district, and analyzes the status of environmental carrying capacity for provisioning water. The environmental carrying capacity for provisioning water was assessed based on ecosystem services analysis. The total area of agricultural land in Palu is 5,892.06 ha or about 16.52% of the total area, which spreads in all districts. Three districts recorded have the more extensive agricultural lands, Mantikulore, Tawaeli, and North Palu, of each, has 2188.12 ha (14%), 1090.89 ha (18.51%), and 723.88 ha (12.29%) respectively. The status of water carrying capacity ranged from moderate to high levels, covering an area of ​​5,189.95 ha or 88.08% of the total area of ​​agricultural land. The low carrying capacity of water provision covers ​​689.31 ha or about 11.84% of the total agricultural land. The district of West and South Palu calculated to have the highest carrying capacity. However, both districts experienced a decrease in agricultural land space due to urban development. This study's finding contributes to essential data for relevant authorities in decisions making for sustainable development of urban agriculture in Palu.

Author(s):  
Adi Sutrisno ◽  
◽  
Etty Wahyuni ◽  
Deny Titing ◽  
◽  
...  

The purpose of this research was to understand the carrying capacity of Kayan and Sembakung watershed in North Borneo Province, the carrying capacity in providing clean water and how was the trend of the carrying capacity of the water supply in the Kayan and Sembakung watersheds, which were the basis for food supply. The study area was the Kayan and Sembakung watersheds in the administrative area of North Kalimantan Province using an “ecosystem services” approach. The results of the research were as follows: (1) the Kayan and Sembakung watersheds in North Kalimantan Province were dominated by areas that have “high” carrying capacity in providing food; (2) The Kayan Watershed in North Kalimantan Province was dominated by areas that have a “moderate” environmental carrying capacity in water supply, while for the Sembakung watershed it was dominated by areas that have a “high” environmental carrying capacity in water supply; and (3) The carrying capacity of the downstream areas of the Kayan and Sembakung watersheds in the provision of clean water tended to be “Very Low” when the carrying capacity of the downstream ecosystems in the Kayan and Sembakung watersheds as food providers was “High”.


Author(s):  
Xiaotong Xie ◽  
Xiaoshun Li ◽  
Weikang He

As a key element in China’s spatial planning, the development zoning of land space has become a focus of China’s current activity. During its rapid social and economic development, China has faced severe and diverse challenges regarding sustainable development, such as farmland occupation, environmental degradation, urban land disorder expansion, etc. Against this backdrop, research on the linkage between resource–environmental carrying capacity (RECC) and the development zoning of land space in the process of sustainable development has received increased attention, and an accurate evaluation of the RECC would provide useful guidance for Chinese policy makers to carry out the development zoning of land space. This paper uses Henan Province as an example to construct a comprehensive evaluation model of “resource carrying capacity (RCC)–eco–environmental carrying capacity (EECC)–socio–economic carrying capacity (SECC)”, which calculates the level of RECC in a provincial area. In addition, this paper designs a correlation model between the RECC and the development zoning of land space, which uses a three-dimensional magic cube evaluation model to analyze the development zoning layout of land space. The results showed that a geographical pattern exists, where in the southwestern areas of Henan Province have a higher RECC than the central and northeastern areas. The results also indicated that the land space patterns of Henan Province can be divided into seven types of areas through a three-dimensional magic cube evaluation model, which can better reflect the spatial differentiation characteristics of the comprehensive index of RECC. The results of this study offer an important reference for policy-makers to make decisions and also provide a scientific and pragmatic basis for the formulation of sustainable development strategies.


2012 ◽  
Vol 516-517 ◽  
pp. 1555-1559 ◽  
Author(s):  
Ji Wu Liu ◽  
Yan Hong Xiong ◽  
Yang Ji

The construction of UHV (ultra-high voltage) transmission lines has become an important part of the planning of “smart grid" and “solid grid” in China. This article elaborated in recent years the UHV transmission lines construction status and possible problems, has made a comparative analysis on the angle of environmental carrying capacity, and put forward three effective suggestions, in order to improve the construction efficiency of UHV transmission lines engineering.


Forests ◽  
2018 ◽  
Vol 9 (9) ◽  
pp. 554 ◽  
Author(s):  
Shankar Adhikari ◽  
Himlal Baral ◽  
Craig Nitschke

Ecosystem services (ES) are critical to human well-being, especially in developing countries. Improved understanding of the status of ES is required to help people improve their quality of life. The status of ES is largely unknown in many regions of Nepal. This study was carried out in one of Nepal’s biodiversity hotspots, the Panchase Mountain Ecological region (PMER), to identify, prioritize and map the major ES in the region. Primary data for the study were collected through key informant interviews, focus group discussions, a transect walk, and field observations. Similarly, secondary data were obtained from published and unpublished reports and satellite images of the study area. The data were analyzed both qualitatively and quantitatively. Thirty-seven ES were identified from the study landscape. Among them, nine were provisioning services, thirteen regulating services, nine cultural services, and six supporting services. Interestingly, the prioritization of ES among stakeholders differed on the basis of their background, particular features of their landscape, professional engagement, and individual interests. For instance, forest users prioritized provisioning services for their daily needs whereas forest managers prioritized regulating and cultural services for overall ecosystem management and aesthetic values. Mapping of the ES from the landscape for 1995 and 2015 identified that forest area and associated ES have likely increased, especially in the upland regions, while agricultural land and their associated ES have decreased. The study can be used as a reference by planners and policy makers in managing ES in the PMER to increase synergies and reduce trade-off among various services.


Author(s):  
Tambaten Yuliana Br Purba

The purpose of the study to predict the environmental sustainability of Jakarta terms of aspects of land conversion and environmental carrying capacity. Using methods dinamyc system. The results showed that the area of open land shrinkage while the land area covered increases, as demand increases while supply remains. Demand for water increases while supply remains, resulting in the exploitable groundwater. Status of environmental carrying capacity of Jakarta in 2016 from the aspect of water is exceeded. Intervention on land and water resources in 2017 is predicted to increase the carrying capacity of land and water, so that the status of the environmental carrying capacity of Jakarta is still ongoing until 2025.


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