bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of Dietary and Metabolic Risk Factors on Cardiovascular and Diabetes Mortality in South Asia: Analysis From the 2010 Global Burden of Disease Study
Authors: Yakoob Mohammad Y. , Micha Renata , Khatibzadeh Shahab , Singh Gitanjali M. , Shi Peilin , Ahsan Habibul , Balakrishna Nagalla , Brahmam Ginnela N. V. , Chen Yu , Afshin Ashkan , Fahimi Saman , Danaei Goodarz , Powles John W. , Ezzati Majid , Mozaffarian Dariush ,   on behalf of Global Burden of Diseases, Injuries, and Risk Factors: Nutrition and Chronic Diseases Expert Group, and Metabolic Risk Factors of Chronic Diseases Collaborating Group
Published: October 2016

Objectives. To quantify cardiovascular disease and diabetes deaths attributable to dietary and metabolic risks by country, age, sex, and time in South Asian countries. Methods. We used the 2010 Global Burden of Disease national surveys to characterize risk factor levels by age and sex. We derived etiological effects of risk factors–disease endpoints, by age, from meta-analyses. We defined optimal levels. We combined these inputs with cause-specific mortality rates to compute population-attributable fractions as a percentage of total cardiometabolic deaths. Results. Suboptimal diet was the leading cause of cardiometabolic mortality in 4 of 5 countries, with population-attributable fractions from 40.7% (95% uncertainty interval = 37.4, 44.1) in Bangladesh to 56.9% (95% uncertainty interval = 52.4, 61.5) in Pakistan. High systolic blood pressure was the second leading cause, except in Bangladesh, where it superseded suboptimal diet. This was followed in all nations by high fasting plasma glucose, low fruit intake, and low whole grain intake. Other prominent burdens were more variable, such as low intake of vegetables, low omega-3 fats, and high sodium intake in India, Nepal, and Pakistan. Conclusions. Important similarities and differences are evident in cardiometabolic mortality burdens of modifiable dietary and metabolic risks across these countries, informing health policy and program priorities.
Race and Skin Color in Latino Health: An Analytic Review
Authors: Cuevas Adolfo G. , Dawson Beverly Araujo , Williams David R. 
Published: October 2016

We examined 22 articles to compare Black Latinos/as’ with White Latinos/as’ health and highlight findings and limitations in the literature. We searched 1153 abstracts, from the earliest on record to those available in 2016. We organized the articles into domains grounded on a framework that incorporates the effects of race on Latinos/as’ health and well-being: health and well-being, immigration, psychosocial factors, and contextual factors. Most studies in this area are limited by self-reported measures of health status, inconsistent use of race and skin color measures, and omission of a wider range of immigration-related and contextual factors. We give recommendations for future research to explain the complexity in the Latino/a population regarding race, and we provide insight into Black Latinos/as experiences.
Perubahan Mutu Minyak Kelapa dan Minyak Sawit Selama Penggorengan
Authors: KAROUW STEIVIE , INDRAWANTO CHANDRA 
Published: October 2016

<p>Abstrak</p><p>Proses penggorengan akan menyebabkan perubahan mutu minyak akibat reaksi hidrolisis, oksidasi dan proses termal. Penelitian ini bertujuan untuk mengetahui perubahan mutu minyak kelapa dan minyak sawit selama penggorengan. Minyak kelapa dan minyak sawit masing-masing digunakan untuk menggoreng kentang pada suhu 170°C selama 15 menit. Minyak tersebut digunakan untuk 3 kali penggorengan. Pada akhir penggorengan dilakukan pengambilan sampel minyak untuk dievaluasi kadar air, kadar asam lemak bebas, bilangan peroksida dan bilangan TBA (Tiobarbituric acid). Hasil penelitian menunjukkan bahwa sebelum penggorengan minyak kelapa dan minyak sawit memiliki kadar air yang hampir sama, tetapi kadar asam lemak bebas, angka peroksida dan TBA minyak kelapa lebih rendah dibanding minyak sawit. Selama penggorengan minyak kelapa dan minyak sawit menunjukkan pola perubahan kadar air yang hampir sama. Pada 1 kali dan 2 kali penggorengan kadar asam lemak bebas, angka peroksida dan angka TBA minyak kelapa dan minyak sawit cenderung berfluktuasi. Pada 3 kali penggorengan minyak kelapa memiliki kadar asam lemak bebas, angka peroksida dan angka TBA yang lebih rendah dibandingkan minyak sawit. Hasil yang diperoleh menunjukkan bahwa minyak kelapa lebih stabil terhadap reaksi oksidasi dibanding minyak sawit selama penggorengan.</p><p> </p><p>Pattern of Coconut Oil and Palm Oil Quality During Frying</p><p>ABSTRACT</p><p> </p><p>Frying was a process which affected the quality of oil due to hydrolysis, oxidation and thermal reactions. The aim of the research was to study the quality pattern of coconut oil and palm oil quality during frying. The oils were utilized to fry french fries at 170°C for 15 minutes and then used in frying process for 3 times. Samples of oil were taken at the end of each frying period and analyzed for its moisture, free fatty acid, peroxide and TBA (tiobarbituric acid) values. The results showed that, coconut oil and palm oil having similary moisture content before and during frying. Otherwise free fatty acid, peroxide and TBA values at coconut oil lower then palm oil. During 1 and 2 times of frying period these two oils showed fluctuation in free fatty acid, peroxide and TBA values. During 3 times of frying, coconut oil contained free fatty acid, peroxide and TBA value lower than palm oi. Thus, we consider that coconut oil was more stable to oxidation compared to palm oil during frying</p>
Korelasi Konsentrasi Hara Nitrogen Daun dengan Sifat Kimia Tanah dan Produksi Manggis
Authors: Liferdi Lukman , Poerwanto Roedhy 
Published: October 2016

Analisis daun dapat digunakan sebagai pedoman dalam mendiagnosis status hara dan rekomendasi pupuk pada tanaman manggis. Namun demikian, standar teknik pengambilan contoh daun harus ditentukan secara akurat. Umur daun merupakan faktor utama dalam menentukan status hara tanaman buah. Daun yang tepat dijadikan contoh yaitu pada saat konsentrasi hara mempunyai korelasi terbaik dengan pertumbuhan dan hasil. Daun yang mempunyai korelasi terbaik tersebut digunakan dalam uji kalibrasi. Konsentrasi hara mineral pada daun diamati pada tiga sentra perkebunan manggis, yaitu Kabupaten Bogor, Tasikmalaya, dan Purwakarta. Dua puluh pohon manggis dewasa yang relatif seragam dari masing-masing kebun diambil daunnya setiap bulan dan dianalisis untuk mengetahui konsentrasi hara N-nya. Contoh daun diambil mulai daun berumur 2 bulan setelah trubus dan seterusnya secara periodik hingga umur 10 bulan. Pengamatan produksi meliputi jumlah bunga yang mekar, jumlah bunga yang rontok, serta jumlah dan bobot buah per pohon. Kualitas buah dilihat dari konsentrasi N, P, dan K dari masing-masing bagian buah dan padatan terlarut total. Hasil penelitian menunjukkan bahwa konsentrasi hara nitrogen pada daun berkurang dengan bertambahnya umur. Konsentrasi N daun manggis asal Purwakarta lebih tinggi daripada Tasikmalaya dan Bogor serta berkorelasi positif dengan hara N tanah dan hasil. Korelasi konsentrasi N dari beberapa umur daun dengan hasil yang paling baik yaitu daun umur 5 bulan dengan koefisien korelasi di atas 0,7. Oleh karena itu, umur daun yang tepat sebagai alat diagnosis hara N untuk tanaman manggis yaitu 5 bulan. Hasil penelitian ini dapat digunakan sebagai pedoman dalam menyusun rekomendasi pemupukan untuk tanaman manggis.<br /><br />Leaf analysis can be used as a guide to diagnose nutritional status and as a fertilizer recommendation tool for mangosteen tree. Therefore, the sampling technique of standard leaf has to be established. Leave age was the main important factor to estimate fruits plant nutrient status. The best leaf sampling was the one which has the best correlation between leaf nutrients concentration with growth and yield as well. This leaf will be used in the calibration test. Leaf nutrient concentration was investigated in three mangosteen production areas i.e. Bogor, Tasikmalaya, and Purwakarta. To analyze N concentration of twenty uniform and representative mangosteen trees, leaves were taken monthly. The results showed that concentration of N on the leaves decreased following the increase of leaf age. Mangosteen leaves from Purwakarta contained more N than those from Tasikmalaya and Bogor. Fifth months leaf age was the best one to be used as a leaf sample to diagnose N nutritional status which coefficient correlation more than 0.7, because it had the best correlation among concentration of N in leaf with soil nitrogen nutrient and production. This research results were used as a guide to estimate fertilizer recommendations for mangosteen.<br /><br /><br />
UJI ADAPTASI VARIETAS UNGGUL TEBU PADA KONDISI AGROEKOLOGI LAHAN KERING / Adaptation Test of Superior Varieties Sugarcane in Dryland Agroecological Conditions
Authors: SANTOSO BUDI , MASTUR MASTUR , DJUMALI DJUMALI , NUGRAHENI SUMINAR DIYAH 
Published: October 2016

<p>ABSTRAK</p><p>Pemilihan varietas unggul baru yang beradaptasi pada kondisi <br /> agroekologi kering merupakan langkah yang bijak dalam mendukung <br /> program pengembangan tebu. Karena kebutuhan air tanaman tebu di lahan kering hanya dipenuhi dari hujan, diperlukan strategi untuk tetap mengoptimalkan produksi dengan mengeliminasi cekaman kekeringan. Penelitian ini dilakukan dari bulan Februari sampai dengan November 2012 untuk melakukan pengujian terhadap adaptasi enam varietas unggul tebu yang toleran terhadap lahan kering. Penelitian dilaksanakan di Kebun Percobaan Ngemplak, Pati. Penelitian disusun dalam rancangan petak terbagi yang diulang sebanyak lima kali. Juringan (sistem tanam tebu dalam baris) yang digunakan berukuran panjang 8 m dan lebar 10 m, serta jarak pusat ke pusat (pkp) 1 m. Parameter yang diamati meliputi persentase tumbuh, tinggi tanaman, panjang batang, jumlah dan panjang ruas, diameter batang, bobot batang per meter, persen brix nira, dan rendemen. Hasil penelitian menunjukkan bahwa varietas Kentung dan BL menghasilkan bobot tebu (721,75 g/m dan 749,25 g/m) dengan rendemen masing-masing sebesar 8,54% dan 8,25%. Kedua varietas ini cocok untuk dikembangkan pada kondisi agroekologi lahan kering.</p><p>Kata kunci: <em>Saccharum officinarum</em>, uji adaptasi, lahan kering, varietas unggul</p><p> </p><p> </p><p>ABSTRACT</p><p>Selection of new superior varieties adapted to dry agroecology was <br /> a wise move to support the development of sugarcane. In general, the land thus fulfilled its water from the rain. Therefore we need a strategy for <br /> optimizing the production of sugarcane by eliminating barriers. In fiscal <br /> year 2012 research activities was carried out to test six varieties of <br /> sugarcane for sugar cane clones tolerant of dry land. Research activities <br /> were located at Ngemplak, Pati. The design used is split plot design <br /> repeated 5 times. Plot size, are 8 m long, 10 m wide and center to center <br /> distance 1 m. Data were analyzed using analysis of variance (ANOVA) <br /> followed by LSD 5%. The parameters observed were growth percentage, <br /> plant height, stem lenght, number of segments, segment length, stem <br /> diameter, weight stem per meter, percent brix of sap, and yield of <br /> sugarcane per meter. The results are superior sugarcane varieties, BL and <br /> Kentung varieties produce cane weight 721.75 g / m and 749.25 g / m <br /> showed that respectively; and yield 8.54% and 8.25% the highest respectively. Both varieties are s uitable to be developed in dry land agroecological condition.</p><p>Keywords:<em> Saccharum officinarum</em>, adaptation test, dry land, superior varieties</p>
SPEECH ACTS EMPLOYED BY THE MAIN CHARACTERS OF PEARL HARBOR MOVIE
Authors: Khasanah Nurul 
Published: October 2016

Abstrak: Tindak tutur sangat penting dalam sebuah percakapan. Penelitian ini mengkaji tindak tutur dari ketiga pemeran utama sebuah film yang berjudul Pearl Harbor. Teori yang digunakan adalah teorinya Austin (1962) yang membagi tindak tutur menjadi tiga jenis, yaitu: tindak locutionary, tindak illocutionary, dan tindak perlocutionary. Data dibagi atas dialog-dialog berdasarkan scene yang ada dalam film, kemudian diidentifikasi tindak tutur yang terkandung dalam ujaran para pemeran utama dalam film tersebut. Selanjutnya diklasifikasikan berdasarkan jenisnya. Hasil analisis, ditemukan bahwa ketiga pemeran utama tersebut menggunggunakan ketiga jenis tindak tutur. Hasil tindak locutionary menunjukkan bahwa sebagian besar yang digunakan oleh ketiga pemeran utama adalah kalimat deklaratif yaitu sebamyak 60.19%. hasil dari tindak illocutionary menunjukkan bahwa sebagian besar yang digunakan adalah assertive yaitu sebanyak 40.79%. dan hasil yang terakhir adalah tindak perlocutionary, menunjukkan bahwa pengaruh yang peling besar adalah “meminta pendengar untuk melakukan sesuatu” yaitu sebanyak 32 ujaran dari 55 dialog yang ada.
PENDIDIKAN KARAKTER (Sebuah Usaha Penanaman Kebaikan)
Authors: Harjali Harjalai 
Published: October 2016

Abstract: Character education plays an important role to build an individual's character. In this notion, since about 2500 years ago Socrates had argued that the fundamental purpose of education is to make someone good and smart. In Islamic history, about 1500 years ago Muhammad, the last Prophet of Islam, also confirmed that the primary mission of educating people is to facilitate the formation of good character in which the ultimate teaching objective is about honesty (al-amien) and how can build such good character is to learn (iqra) from written texts and the passages that are not written. Thousands of years afterwards, the formulation of the main goals of education remain similar, that is to build good personality of learners. Undeniably, school or campus have great influence and impact on the character of students, whether intentionally or not. This fact became the entry point to state that the school or college has a duty and responsibility to make moral education and character building. Furthermore, some experts on educational value, moral or character argue that it is not only a duty or responsibility, but also an effort that should be a priority.
PEMBELAJARAN MATEMATIKA DENGAN PENDEKATAN PENDIDIKAN MATEMATIKA REALISTIK INDONESIA (PMRI) DI SD/MI
Authors: Hidayati Kurnia 
Published: October 2016

Abstract: PMRI is a realistic mathematics education which employs real life problems that are considered appropriate to the students’ minds. PMRI is developed with reference to constructivist philosophy. PMRI is in line with the new paradigm of education in Indonesia, which is to improve the quality of mathematics education that is solely dominated by the issue on how to improve students’ understanding of mathematicsand develop reasoning skill. In this regard, the real world is mainly used as a starting point for the development of ideas and concepts of Mathematics. The role of teacher is only as a guide and facilitator for students in the process of reconstructing their ideas and concepts of Mathematics. Additionally, through the learning activities assisted by the teacher, it is expected that students can find the characteristics, definitions, theorems, or rules themselves. Students are encouraged to understand mathematics through real-world contexts frequently faced or the things that can be possibly imagined by them. Mathematics learning cannot be separated from its nature when someoneattempts to search a problem, solve the problem and organize the subject matter. Hence, Mathematics learning should be directed to the use of situations and opportunities thatallow students to reinvent mathematics by their own efforts.
EMPLOYING EFFECTIVE TEACHERS’ LANGUAGE TO CREATE COMMUNICATIVE INTERACTION IN EFL CONTEXT
Authors: Susilo Andi 
Published: October 2016

Abstract: Di samping penerapan metode/teknik pembelajaran, aplikasi bahasa yang digunakan pendidik atau dikenal dengan istilah teacher talk (TT) merupakan faktor utama penunjang kualitas proses dan hasil pembelajaran. TT tidak hanya sebagai sumber utama belajar bahasa, tetapi juga sebagai alat untuk mengajarkan target bahasa. TT berperan vital sebagai piranti pendidik dalam melaksanakan proses pembelajaran, mengelola, dan mengevaluasi proses serta hasil belajar peserta didik. Pendidik diharapkan mampu mengeksplorasi bahasa yang digunakan secara tepat sesuai dengan tujuan pembelajaran, tingkat penguasaan bahasa dan kebutuhan belajar peserta didik. Untuk menciptakan interaksi komunikatif, pendidik diharapkan mampu menerapkan ragam strategi bertanya yang efektif khususnya jenis pertanyaan referential untuk menggali ide peserta didik, merespon dan memberikan umpan balik fokus pada ide yang disampaikan, menggunakan modifikasi bahasa yang komunikatif ketika berbicara, menjelaskan materi, bertanya, atau dalam memberikan instruksi agar input yang diberikan mudah dipahami dan melakukan negosiasi makna dengan peserta didik. Dapat dikatakan bahwa ada atau tidak adanya aspek-aspek tersebut dalam proses pembelajaran akan mempengaruhi tingkat kualitas interaksi komunikatif di kelas. ثيدح ملعم وأ برم وهو فورعم وه امك ةمدختسلما ةغللا قيبطتو ،ملعتلا تاينقت / بيلاسأ قيبطت بناج لىإ ملعتل ايسيئر اردصم طقف سيل TT .جئاتنلاو ةيميلعتلا ةيلمعلا ةدوج معدت تيلا ةيسيئرلا لماوعلا يه )TT( ،ةرادإو ،ملعتلا ةيلمع ذيفنت في برم ةادأك TT ايويح ارود .فدلها ةغللا ميلعتل ةادأك اضيأ نكلو ،ةغللا اقفو بسانم لكشب ةمدختسلما ةغللا فاشكتسلا ينبرلما عقوتلما نمو .بلاطلا ىدل ملعتلا جئاتنو ةيلمع مييقتو عقوتلما نمو ،يلصاوتلا لعافتلا قللخ .ينملعتلما ىدل ملعتلا تاجايتحاو ةغللا ناقتإ ىوتسمو ،ملعتلا فادهلأ فاشكتسلا ةلئسلأا نم ةيعجرم عاونأ اديدتح لئس ةلاعفلا تايجيتاترسلاا نم ةعونتم ةعوممج ذيفنتل ينبرلما ليدعت مادختساب كلذو ،ةحورطلما راكفلأا ىلع زيكترلل ةدترلما ةيذغتلا يرفوتو ةباجتسلااو ،ينملعتلما نم ةركف تلاخدم مهفن نأ لهسلا نم تيلا تاميلعتلا ءاطعإ في وأ ،لأسن ،داولما حرشو ،ثيدلحا دنع ةيلصاوتلا ةغللا رثؤيو ملعتلا ةيلمع في بناولجا هذه دوجو مدع وأ دوجو نأ لوقلا نكيمو .ينملعتلما عم نيعي ضوافتلاو ةنيعم.ةيساردلا لوصفلا في يلصاوتلا لعافتلا ةيعون ىوتسم ىلع
HUBUNGAN ANTARA TINGKAT PENDIDIKAN IBU DAN KECERDASAN LOGIKA-MATEMATIKA SISWA R.A. MUSLIMAT N.U. PONOROGO
Authors: Hidayati Kurnia 
Published: October 2016

Abstract: This study describes the relationship between mother’s education level and students’ logic-mathematical intelligence at the RA NU 074 Ronowijayan Ponorogo. This study was conducted with a quantitative approach through the study of documentation and questionnaires. The data is processed by the formula percentages and standard deviations and analyzed by correlation of contingency coefficients. The results showed that (1) The level of maternal education were high for as many as 10 people or 50%, the categories are as many as 7 people or 35% and the low category as many as 3 people or 15%; (2) Logical-mathematical intelligence which include high category with a score of> 62.103 as many as three people, the medium category with a score of 44.697 to 62.103 as many as 13 people and low category with a score of <44.697 of 4 people and (3) There is a positive and significant relationship between mother’s education level and logic-mathematical intelligence RA NU’s 074 students Ronowijayan Ponorogo at a significance level of 5% with Φ0> table or 0.6000606> 0.444 then H0 is rejected and Ha accepted.لافطلأا ةضور بلاطل ىضايرلا ىقطنلما ءاكذلاب تاهملأا ىدل يوبترلا ىوتسلما ينب ةقلاعلا ةساردلا هذه تنّ يب ةسارد قيرط نع يّ مكلا لخدلماب ةساردلا هذه تيرجأ .وغورونوف نايايجوونور 074 ءاملعلا ةضهن " تاملسلما " نع لّ لتحو فيارنحلاا رايعلماو ةيوئلما ةبسنلا ةغيص قيرط نع تانايبلا لماعتو .تانايبتسلااو ةبوتكلما قئاثولا تاهملأا ىدل يوبترلا ىوتسلما )1( : ىلع ثحبلا جئاتن تّ لد. Korelasi Koefisien Kontingensi قيرط ( ةلفاسلا ةقبطلا فيو ،) 35 وأ تاهمأ 7 ( ةطسوتلما ةقبطلا فيو ، ) 50% وأ تاهمأ 10 ( ةيلاعلا ةقبطلا في نمو ،بلاط 3<62،103 ةجيتنلاب ةيلاعلا ةقبطلا نم ىضايرلا ىقطنلما ءاكذلاو )2( . ) 15% وأ تاهمأ 3 يوبترلا ىوتسلما ينب ىنعم وذ ةقلاعلا دجوت )3( . بلاط 4 ددعلا > 44،697 ةجيتنلاب ةطسوتلما ةقبطلا 074 ءاملعلا ةضهن « تاملسلما « لافطلأا ةضور في بلاطلا ىدل يضايرلا يقطنلما ءاكذلا ينبو تاهملأا ىدل . ىنعم يذ ىوتسلما في وغورونوف نايايجوونور.لاوبقم ( Ha ) يرايتخلاا ضرفلاو ادودرم ( H0) يغلالا ضرفلا ناك اذهب
EFEKTIFITAS PEMBENTUKAN DAERAH DALAM UPAYA MENDUKUNG OTONOMI DAERAH DI INDONESIA
Authors: Safudin Endrik 
Published: October 2016

Otonomi Daerah dikonsepkan sebagai pemberian hak dan wewenang serta kewajiban daerah otonom untuk mengatur dan mengurus sendiri urusan pemerintahan dan kepentingan masyarakat setempat dalam sistem Negara Kesatuan Republik Indonesia. Dalam melaksanakan otonomi daerah harus memperhatikan asas otonomi daerah yaitu desentralisasi, dekonsentrasi dan tugas pembantuan. Otonomi daerah diberlakukan untuk mempercepat pembangunan, meningkatkan daya saing, mempercepat kesejahteraan, mengembangkan nilai-nilai kedaerahan dan lain sebagainya. Pada konteks inilah pembentukan daerah jangan sampai menjadi penghambat tujuan mulia dari otonomi daerah. Apalagi jika pembentukan daerah hanya untuk melayani peluang terjadinya bureaucratic and political rent-seeking, yakni kesempatan untuk memperoleh keuntungan dana, baik dari pemerintah pusat maupun dari penerimaan daerah sendiri sehingga melupakan kesejahteraan rakyat. Pada tulisan ini difokuskan pada pembahasan efektifitas pembentukan daerah dalam upaya mendukung otonomi daerah di Indonesia. Pendekatan efektifitas dimaksudkan untuk melahirkan kehati-hatian dalam memberikan persetujuan daerah otonomi baru. Dengan penelusuran ini maka akan bisa dilihat sejauh mana faktor-faktor yang mempengaruhi efektifitas daerah yang sudah terbentuk untuk dijadikan evaluasi kedepannya.
Sampling and Data Analysis Optimization for Estimating Soil Organic Carbon Stocks in Agroecosystems
Authors: Sherpa Sonam R. , Wolfe David W. , van Es Harold M. 
Published: October 2016

Core Ideas
SOC stocks are highly variable at the agroecosystem scale.
Optimized sampling and estimation approaches are crucial for low cost SOC assessment.
Systematic sampling provided thorough geographic and attribute space coverage.
Ordinary kriging outperformed regression kriging, simple mean, and SSURGO approaches.
Low‐cost approaches for measuring soil organic C (SOC) stocks are essential for verifying farm management effects on C sequestration in agroecosystems. This study compared sampling and data analysis optimization approaches for estimating SOC stocks of a complex agroecosystem. Soil samples were collected from a 232‐ha area of a working dairy farm with multiple land uses, crop rotations, topographic features, and manure application rates. The SOC stocks were estimated by (i) simple mean, (ii) ordinary kriging, (iii) regression kriging, and (iv) using the USDA Soil Survey Geographic (SSURGO) database. Relationships among sampling schemes, estimation approaches, auxiliary information, and SOC stocks were explored. Slope, elevation, soil type, and land use types displayed a high degree of variation at the study site, yet relationships with SOC stocks were weak or nonsignificant. Systematic sampling provided the best coverage of both geographic and attribute space, allowing reliable variogram estimates and RMSEs that increased little with reduced sample number. Random and stratified random sampling approaches resulted in reduced accuracy. Ordinary kriging had lower RMSEs than either regression kriging or the simple mean, and total SOC stocks estimates fluctuated less when sample sizes were reduced. Using SSURGO overestimated total SOC stocks by up to 5.1% compared with the other approaches, suggesting that this approach may be worthy of evaluation for circumstances with a low budget and low confidence level requirements. Systematic sampling and ordinary kriging can provide an optimal strategy for estimating SOC stocks in agroecosystems with complex topography and land uses.