There are few examples of primary succession from tropical conditions, especially on land degraded by human activity, for example, mine wastes. Such studies would assist in informing ecological restoration of these degraded sites. Here, a chronosequence approach was used to investigate early-stage primary succession on overburden spoil wastes derived from coal mining in a tropical climate over a 64-month period. Plant species composition and several microclimatic and spoil physicochemical and microbial properties were measured, and responses analysed using regression and multivariate (nonmetric multidimensional scaling) analyses. A clear primary successional process was described showing that vegetation cover and species richness generally increased through time with a successional pathway from graminoids and herbs as the early dominants, shrubs in midsuccession, and trees in the later-successional stages. Two important differences were noted between our results and primary successions elsewhere; a lower abundance of nitrogen-fixing species and the colonization by some late-successional shrubs and trees at the start. During the succession, aggregate stability and organic matter (total C) increased-whereas electrical conductivity and some potentially toxic elements (Al, B) decreased. The constant high spoil moisture content appears to be an important determinant of vegetation development during primary succession and may be a factor in the rapid pace of succession detected here. The lessons for ecological restoration for coal overburden spoil under tropical conditions are that succession can proceed relatively rapidly.
Coal mine overburden (OB) materials were nutrient-poor, loosely adhered particles of shale, stones, boulders, and cobbles, also contained elevated concentration of trace metals. This condition cause OB substrate did not support plants growth. However, there were certain species that able to grow on overburden dumping site. This investigation sought to identify plants species that presence on coal mine overburden. The research was conducted on opencast coal mine OB dumping site in Satui, South Kalimantan. Vegetation sampling was carried out on six different ages of coal mine OB dumps (7, 10, 11, 42, 59 and 64 month) using line transect. Species identification used information from local people, AMDAL report of PT Arutmin Indonesia-Satui mine project, and website. There were 123 plant species, consisted of 79 herbs (Cyperaceae, Poaceae and Asteraceae), 10 lianes, bryophyte, 9 ferns, 10 shrubs, and 14 trees. A number of Poaceae, i.e., Paspalum conjugatum, Paspalum dilatatum, and Echinochloa colona generally present among the stones, boulders, and cobbles. While Cyperaceae such as Fimbristylis miliaceae, Cyperus javanicus, Rhyncospora corymbosa and Scleria sumatrensis most often found in and around the basin/pond with its smooth and humid substrate characteristics. Certain species of shrubs and trees have been present on the 7 month OB dumping site. They were Chromolaena odorata, Clibadium surinamense, Melastoma malabathricum, Trema micrantha, and Solanum torvum (Shrubs), Ochroma pyramidale and Homalanthus populifolius (trees). This plant species could be used for accelerating primary succession purpose on coal mine overburden dumping site. Nevertheless, species selection was needed to avoid planting invasive species.
Abstrak : Perumahan Bukit Cemara Tujuh (BCT) memiliki empat RT yang terdiri RT 01, RT 02, RT 03 (di wilayah pemerintahan Kabupaten Malang) dan RT 07 di bawah Pemerintahan Kota Malang. RT 01, RT 02, RT 03 sama-sama berada di bawah lingkungan RW 12. Wilayah ini memiliki potensi yang sangat luar biasa diantaranya: warga selalu guyub dalam kegiatan-kegiatan masjid dan sosial kemasyarakatan lainnya, pemuda memiliki wadah dalam forum pemuda yang membantu menjaga keamanan kampung. Potensi ini perlu diberdayakan dalam rangka siaga covid-19, sebab pandemi covid-19 mengharuskan kita semua untuk melakukan tindakan preventif agar selalu sehat. Untuk mengefektifkan siaga pandemic covid-19 ini di Perum BCT perlu dibentuk satgas agar lebih berdaya. Setelah terbentuk dilatih untuk menjalankan tugas pokok dan fungsi (TUPOKSI) satgas ini. Tujuan kegiatan ini adalah: 1) pembentukan satgas siaga covid-19 di RW 12 Perum Bukit Cemara Tujuh Dukuh Jatis Desa Mulyoagung Kabupaten Malang; 2) Pelatihan serta pendampingan tupoksi satgas siaga covid-19 di perum BCT; dan d) Pelaksanaan Tupoksi satgas siaga covid19 di Perum BCT. Manfaat kegiatan ini adalah mengedukasi warga RW 12 Perum BCT untuk selalu waspada dan senantiasa melaksanakan protokol kesehatan. Hasil kegiatan ini adalah: 1) Pembentukan Satgas Covid-19; 2) Penyemprotan Desinfektan di lingkungan RW 15 Perumahan BCT; dan 3) Edukasi masyarakat tentang Pola Hidup Sehat. Kegiatan ini perlu terus dilaksanakan secara terus menerus agar masyarakat selalu waspada dan senantiasa melaksanakan protocol kesehatan di situasi pandemic covid-19.Abstract : The results of this activity are: 1) Establishment of the Covid-19 Task Force; 2) Spraying disinfectant in the neighborhood of RW 15 BCT Housing; and 3) public education about a healthy lifestyle. This activity needs to be carried out continuously so that the community is always alert and always implements health protocols in the covid-19 pandemic situation. The results of this activity are: 1) Establishment of the Covid-19 Task Force; 2) Spraying disinfectant in the neighborhood of RW 15 BCT Housing; and 3) public education about a healthy lifestyle. This activity needs to be carried out continuously so that the public is always vigilant and always implements health protocols in the covid-19 pandemic situation. The results of this activity are: 1) Establishment of the Covid-19 Task Force; 2) Spraying disinfectant in the neighborhood of RW 15 BCT Housing; and 3) public education about a healthy lifestyle. This activity needs to be carried out continuously so that the community is always alert and always implements health protocols in the covid-19 pandemic situation.
A healthy and green learning environment in schools will greatly support the achievement of a smart, healthy, and quality generation. Therefore, it is necessary to make an effort to create a school that has a good learning environment. It's just that a healthy and green learning environment is not only physical but comprehensive in every system in the school. So it is necessary to develop a comprehensive green school-based learning environment model to support the achievement of a quality generation. This study aims to analyze the need for a green school-based learning environment model. Needs analysis includes policies, curriculum, activities, and infrastructure. According to the results of the needs analysis, the authors recommend the development of an integrated green school-based learning environment model in integrated thematic learning.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.