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| 1 | A Synthesizing Land-cover Classification Method Based on Google Earth Engine: A Case Study in Nzhelele and Levhuvu Catchments, South Africa显示文摘This study designed an approach to derive land-cover in the South Africa with insufficient ground samples, and made a case demonstration in Nzhelele and Levhuvu catchments, South Africa. The method was developed based on an integration of Landsat 8, Sentinel-1, and Shuttle Radar Topography Mission(SRTM) Digital Elevation Model(DEM), and the Google Earth Engine(GEE) platform. Random forest classifier with 300 trees is employed as land-cover classification model. In order to overcome the defect of insufficient ground data, the stratified sampling method was used to generate the training and validation samples from the existing land-cover product. Likewise, in order to recognize different land-cover categories, the percentile and monthly median composites were employed to expand input metrics of random forest classifier. Results showed that the overall accuracy of the land-cover of Nzhelele and Levhuvu catchments, South Africa in 2017–2018 reached to 76.43%. Three important results can be drawn from our research. 1) The participation of Sentinel-1 data can slightly improve overall accuracy of land-cover while its contribution on land-cover classification varied with land types. 2) Under-fitting problem was observed in the training of non-dominant land-cover categories using the random sampling, the stratified sampling method is recommended to make sure the classification accuracy of non-dominant classes. 3) When related reflectance bands participated in the training process, individual Normalized Difference Vegetation index(NDVI), Enhanced Vegetation Index(EVI), Soil Adjusted Vegetation Index(SAVI), Normalized Difference Built-up Index(NDBI) have little effect on final land-cover classification result. | ZENG Hongwei WU Bingfang WANG Shuai MUSAKWA Walter TIAN Fuyou MASHIMBYE Zama Eric POONA Nitesh SYNDEY Mavengahama | 2020 | Chinese Geographical Science2020，30，3： | 4 |
| 2 | Gamma knife radiosurgery for acousticschwannoma:Effects of low radiation dose and functional prognosis显示文摘 | Hirato M Lnoue H Zama A | 1996 | Stereotact FunctNeurosurg1996，，： | 1 |
| 3 | Successful treatment of a basilar aneurysm presenting as a brainstem hemorrhage显示文摘 | Ono N Imai S Zama A | 1984 | Surg Neurol1984，22，4： | 1 |
| 4 | The role of plague rapture and thrombosis in coronary disease显示文摘 | Helft G | 2000 | Atherosderosis2000，149，2： | 1 |
| 5 | A 192-Arg variant of the human paraoxonase(HUMPONA)gene polymorphism is associated with an increased risk for coronary artery disease in the Japanese显示文摘 | Zama T Murata M Matsubara Y | 1997 | Arterioscler Thromb Vasc Biol1997，17，12： | 1 |
| 6 | New compressed tab-let rapidly disintegrating in Saliva in the mouth using crystalline cellulose and a disintegrant显示文摘 | WATANABE Y KOIZUMI K ZAMA Y | 1995 | Biol Pharm Bull1995，18，9： | 1 |
| 7 | Radiobiological effects of gamma knife radiosurgery on brain tumors studied in autopsy and surgical specimences 显示文摘 | Hirato J Zama A | 1996 | Stereotact Funct Neurosurg1996，66，1： | 1 |
| 8 | New compressed tablet disintegrating in saliva in the mouth using crystalline cellulose and a disintegrant显示文摘 | Watanabe Y Koizumi K Zama Y | 1995 | Biol Pharm B ull1995，18，9： | 1 |
| 9 | New Compressed tablet disintegrating in salive in saliva in the mouth using crystalline cellulose and a disintegrant显示文摘 | Watanabe Y Koizumi K Zama Y | 1995 | Biol Pharm Bull1995，18，9： | 1 |
| 10 | CGA-92194 on the chemical reactivity of metolachlor with glutathione and metabolism of metolachlor in grain sorghum (Sorghum bicolor)显示文摘 | Zama P Hatzios K K | 1986 | Weed Sci1986，34，8： | 1 |
| 11 | New compressed tablet rapidly disintegrating in saliva in the mouth using crystalline cellulose and a disintegrant 显示文摘 | WATANABE Y KOIZUMI K ZAMA Y | 1995 | Biol Pharm Bull1995，18，9： | 1 |
| 12 | All-trans retinoic acid in the treatment of pediatric acute promyelocytic leukemia 显示文摘 | Masetti R Vendemini F Zama D | 2012 | Expert Rev Anticancer Ther2012，12，9： | 1 |
| 13 | Early life exposure to endocrine-disrupting chemicals causes lifelong molecular reprogramming of the hypothalamus and premature reproductive aging 显示文摘 | GORE A C WALKER D M ZAMA A M | 2011 | Molecular Endo- crinology2011，25，12： | 1 |
| 14 | Factors effecting function prognosis in surrivors of primary central nervous germcell tumors显示文摘 | Ono N Kakegawa T Zama A | 1994 | Surg Neurol1994，41，1： | 1 |
| 15 | Polymorphisms in the UGT1A1 gene predict adverse effects of irinotecan in the treatment of gynecologic cancer in Japanese patients 显示文摘 | Hirasawa A Zama T Akahane T | 2013 | J Hum Genet2013，58，12： | 1 |
| 16 | Sunitinib rechallenge in metastatic renal cell carcinoma patients显示文摘 | Zama IN Hutson TE Elson P | 2010 | Cancer2010，116，23： | 1 |
| 17 | CGA-92194 on the chemical reactivity of metolachlor with glutathione and metabolism of metolachlor in grain sorghum (Sorghum bicolor)显示文摘 | Zama P Hatzios K K | 1986 | Weed Sci1986，34，8： | 1 |
| 18 | Tnree-dimensional observations on microvascular growth in rat glioma using a vascular casting method显示文摘 | Zama A Tamura M Inoue H | 1991 | Cancer Res Clin Oncol1991，117，： | 1 |
| 19 | Analysis of hypomorphic KitlSl mutants suggests different requirements for KITL in proliferation and migration of mouse primordial germ cells 显示文摘 | Mahakali Zama A Hudson F P Bedell M A | 2005 | Biol Reprod2005，73，4： | 1 |
| 20 | New compressed tablet rapidly disintegrating in saliva in the mouth using crystalline cel- lulose and a disintegrant 显示文摘 | Watanabe Y Koizumi K Zama Y | 1995 | Biol Pharm Bull1995，18，9： | 1 |
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