Does Nest Predation Influence Colony Movements of Saunders's Gulls (Saundersilarus saundersi) in a Reclaimed Land Area?

Underground coal mining will inevitably cause land ponding in high groundwater table, which will affect the land sustainable development. However, the traditional reclamation (TR) is poor in land rate. Thus, finding a suitable reclamation approach is crucial to alleviate the conflicts between coal exploitation and land protection. In this paper, taking Guqiao Coal Mine of China was seriously affected by mining-induced ponding as an example. Firstly, dynamic distribution of surface subsidence and land damage from 2007 to 2017 was revealed base on concurrent mining and reclamation (CMR). Second, the land-water layout of five reclamation schemes (no reclamation, TR, CMR I, CMR II and CMR III) were simulated. Then, and the dynamic filling elevation model and filling thickness model were constructed. Finally, the sequence of earthwork allocation was optimized. The results revealed that: 1) reclaimed land area: CMR III > CMR II > CMR I > TR > no reclamation; 2) The digging depth is directly proportional to earthwork volume and land area, and inversely proportional to water area, but with increase of digging depth, the increase in the reclaimed land area relatively slowed down; 3) CMRs had reclaimed 426.31~637.82 ha and 259.62~471.13 ha more than the no reclamation and TR respectively. Compared with the no reclamation and TR, CMRs can increase the proportion of reclaimed land by 33.77~50.52% and 20.57~37.32% respectively. The research results provide a reference to increase the reclamation rate of mining areas in the high phreatic table.

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Soil Labile Organic Carbon With Different Land Uses in Reclaimed Land Area From Taihu Lake

Soil Science ◽

10.1097/ss.0b013e3181fe2ee4 ◽

2010 ◽

Vol 175 (12) ◽

pp. 624-630 ◽

Cited By ~ 3

Author(s):

Ying Wang ◽

Honghua Ruan ◽

Liangliang Huang ◽

Yuqing Feng ◽

Yan Qi ◽

...

Keyword(s):

Organic Carbon ◽

Taihu Lake ◽

Land Uses ◽

Land Area ◽

Reclaimed Land ◽

Labile Organic Carbon ◽

Soil Labile Organic Carbon

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Mercury speciation in preserved sludge which is estimated to be remaining under the reclaimed land area of Minamata Bay Japan

Toxicology Letters ◽

10.1016/j.toxlet.2017.07.556 ◽

2017 ◽

Vol 280 ◽

pp. S203 ◽

Cited By ~ 1

Author(s):

Mineshi Sakamoto ◽

Takaaki Itai ◽

Koji Marumoto ◽

Keisuke Mori ◽

Milena Horvat ◽

...

Keyword(s):

Mercury Speciation ◽

Land Area ◽

Reclaimed Land ◽

Minamata Bay

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Annual Distribution of Atmospheric Ammonia Concentration in Saemangum Reclaimed Land Area

Korean Journal of Environmental Agriculture ◽

10.5338/kjea.2021.40.4.37 ◽

2021 ◽

Vol 40 (4) ◽

pp. 330-334

Author(s):

Sung-Chang Hong ◽

Min-Wook Kim ◽

Jin-Ho Kim

Keyword(s):

Ammonia Concentration ◽

Land Area ◽

Reclaimed Land ◽

Atmospheric Ammonia ◽

Annual Distribution

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A CASE STUDY ON PERFORMANCE OF RESHAPING BERM BREAKWATERS: ORDU GIRESUN INTERNATIONAL AIRPORT, TURKEY

Coastal Engineering Proceedings ◽

10.9753/icce.v36.structures.40 ◽

2018 ◽

pp. 40

Author(s):

Gulizar Ozyurt Tarakcioglu ◽

Cuneyt Baykal ◽

Semih Bezazoglu ◽

Dogukan Atak ◽

Aysen Ergin ◽

...

Keyword(s):

Cross Sections ◽

Return Period ◽

High Water ◽

Land Area ◽

Reclaimed Land ◽

International Airport ◽

Wave Characteristics ◽

Black Sea Coast ◽

The Stability

In this study, the stability and serviceability (wave overtopping) of hardly-reshaping berm breakwater of Ordu-Giresun International Airport and four alternative cross-sections of fully- and partly-reshaping berm breakwaters are assessed by physical model experiments. Ordu-Giresun International Airport is a public airport constructed on an approximately 1.77 km-square reclaimed land at the eastern Black Sea coast of Turkey. The reclaimed land area is protected with a 7345 m long hardly reshaping rubble mound berm breakwater at a depth of 11 m (MSL). The design high water level (HWL) corresponding to 100-yr return period is calculated as +1.12 m. The bottom slope from deep water up to 20 m water depth is around 1:50 and becomes steeper (1:20) towards the shore. The design wave characteristics at the toe of the structure (100-yr return period) is determined as Hs = 6.68m, Tm= 10.80 sec.

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Development of spontaneous vegetation on reclaimed land in Singapore measured by NDVI

PLoS ONE ◽

10.1371/journal.pone.0245220 ◽

2021 ◽

Vol 16 (1) ◽

pp. e0245220

Author(s):

Leon Yan-Feng Gaw ◽

Daniel Rex Richards

Keyword(s):

Vegetation Index ◽

Normalized Difference Vegetation Index ◽

Temporal Trends ◽

Google Earth ◽

Land Area ◽

Landsat Images ◽

Reclaimed Land ◽

Vegetation Development ◽

Urban Greenery ◽

Spontaneous Vegetation

Population and economic growth in Asia has led to increased urbanisation. Urbanisation has many detrimental impacts on ecosystems, especially when expansion is unplanned. Singapore is a city-state that has grown rapidly since independence, both in population and land area. However, Singapore aims to develop as a ‘City in Nature’, and urban greenery is integral to the landscape. While clearing some areas of forest for urban sprawl, Singapore has also reclaimed land from the sea to expand its coastline. Reclaimed land is usually designated for future urban development, but must first be left for many years to stabilise. During the period of stabilisation, pioneer plant species establish, growing into novel forest communities. The rate of this spontaneous vegetation development has not been quantified. This study tracks the temporal trends of normalized difference vegetation index (NDVI), as a proxy of vegetation maturity, on reclaimed land sensed using LANDSAT images. Google Earth Engine was used to mosaic cloud-free annual LANDSAT images of Singapore from 1988 to 2015. Singapore’s median NDVI increased by 0.15 from 0.47 to 0.62 over the study period, while its land area grew by 71 km2. Five reclaimed sites with spontaneous vegetation development showed variable vegetation covers, ranging from 6% to 43% vegetated cover in 2015. On average, spontaneous vegetation takes 16.9 years to develop to a maturity of 0.7 NDVI, but this development is not linear and follows a quadratic trajectory. Patches of spontaneous vegetation on isolated reclaimed lands are unlikely to remain forever since they are in areas slated for future development. In the years that these patches exist, they have potential to increase urban greenery, support biodiversity, and provide a host of ecosystem services. With this knowledge on spontaneous vegetation development trajectories, urban planners can harness the resource when planning future developments.

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Reconstruction of the Lacustrine Delta and Lake Level Change Analyzing Subsurface Geology and Geomorphology: Changes That Occurred during the Holocene in the Oguraike Reclaimed Land Area, Southern Kyoto, Japan

Open Journal of Geology ◽

10.4236/ojg.2012.23021 ◽

2012 ◽

Vol 02 (03) ◽

pp. 203-211 ◽

Cited By ~ 1

Author(s):

Yuka Ito ◽

Fujio Masuda

Keyword(s):

Lake Level ◽

Land Area ◽

Reclaimed Land ◽

The Holocene ◽

Lake Level Change ◽

Subsurface Geology ◽

Level Change ◽

Lacustrine Delta

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Effects of Different Organic Fertilizers on Improving Soil from Newly Reclaimed Land to Crop Soil

Agriculture ◽

10.3390/agriculture11060560 ◽

2021 ◽

Vol 11 (6) ◽

pp. 560

Author(s):

Xuqing Li ◽

Yao Su ◽

Temoor Ahmed ◽

Haiying Ren ◽

Muhammad Rizwan Javed ◽

...

Keyword(s):

Microbial Biomass ◽

Microbial Biomass Carbon ◽

Organic Fertilizer ◽

Fold Increase ◽

Organic Fertilizers ◽

Biomass Carbon ◽

Maize Seedlings ◽

Land Area ◽

Reclaimed Land ◽

Commercial Organic Fertilizers

The rapid development of cities in the recent 10 years caused a reduction in the cultivated land area, which only accounts for 14% of the total land area in China. Land development and reclamation have been regarded as an effective way to compensate farmland occupation. However, most of the newly reclaimed land has poor soil fertility and suitability; in some cases, the production capacity is only 10–30% of the occupied farmland. In order to ameliorate the soil quality of the newly reclaimed land, this study evaluated the effects of commercial organic fertilizer (0.75, 1.50, and 2.25 kg/m2), mushroom residue (1.50, 2.25, and 3.00 kg/m2), biogas slurry (150, 225, and 300 kg/m2), vegetable cake (0.30 and 0.60 kg/m2), and chemical compound fertilizer (37.50 g/m2) on the pH, moisture content and organic matter content (OMC), available phosphate, total nitrogen, alkaline hydrolysis nitrogen, microbial biomass carbon and nitrogen, and number of total bacteria and phosphate-solubilizing bacteria, as well as the growth of maize seedlings. The results from this study indicate that the soil quality (OMC is an indicator) was ameliorated by chemical and organic fertilizers, in particular commercial organic fertilizers, which caused a 9.35–16.35% increase in moisture content, a 11.56–18.72% increase in pH, a 1.73–2.15 fold increase in OMC, a 338.44–491.41% increase in available P, a 36.80–48.14% increase in total N, a 95.32–128.34% increase in alkaline hydrolysis N, a 92.57–178.38% increase in total bacterial numbers, and a 7.57–20.87 fold increase in microbial biomass carbon compared with the control. The pot experiment further indicated that soil amended with commercial organic fertilizers caused a 20.35–30.55% increase in the height and a 12.50–16.67% increase in the total dry weight of maize seedlings. In addition, representative strains with the ability to dissolve phosphorus and fix nitrogen were successfully isolated using the culture method, and were then identified based on colony morphological observation and 16S rDNA sequence analysis, which help us to not only understand why organic fertilizer has great effect on soil improvement, but also provides beneficial microbial resources for further study.

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