Vegetational Survey Of Management Pastures In New Zealand,
2025
DSIR
Vegetational Survey Of Management Pastures In New Zealand, T.R O. Field
IGC Proceedings (1977-2023)
Much of New Zealand's improved grassland was first sown between 1880 and 1920 during a period of extensive forest clearance and bush burning. Economic signals encouraged further periods of expansion until the early 1980's. Although good statistics exist covering the expansion of improved grasslands, Hilgendorf (1935) and Madden (1940) provided the only extensive information about the floristic make-up of established pastures. They mapped the grasslands of the South and North Islands respectively, with Madden estimating the area of his various pasture types. In the 50 years since this work agriculture has intensified with the advent of aerial topdressing and the …
Typologie Des Prairies Permanentes Du Plateau Lorrain,
2025
INRA
Typologie Des Prairies Permanentes Du Plateau Lorrain, S Plantureux, R Bonischot, A Guckert
IGC Proceedings (1977-2023)
Au cours des dix dernieres annees, des etudes successives nous ont amene a effectuer plus de 700 releves floristiques sur Jes prairies permanentes du plateau lorrain. Une synthese de ces travaux a ete realisee afin de confirmer une premiere typologie proposee en 1979 (Zangiacomi et al., 1980), et surtout de poser Jes principes d'une methode de diagnostic de !'etat de la prairie permanente et de pronostic de son evolution potentielle.
Classification, Improvement And Use Of Low Mountain And Hill Grassland In Changbai Mountain System,
2025
Jilin Agricultural University
Classification, Improvement And Use Of Low Mountain And Hill Grassland In Changbai Mountain System, Gao Zhongqi
IGC Proceedings (1977-2023)
Climate, soil and distribution of animal and plants display clear « Vertical zone» nature in the area of Changbai Mountains. Various types of grassland are distributed under the elevation of 500 metres in the area. The grasslands should be improved and their productivity needs to increase.
Etude Phyto Et Agro-Ecologique Des Formations Herbacees De Corse,
2025
INRA
Etude Phyto Et Agro-Ecologique Des Formations Herbacees De Corse, Florence Volaire
IGC Proceedings (1977-2023)
Les formations herbacees spontanees, qui representent en Corse de faibles superficies, constituent la base de l'alimentation des troupeaux en libre parcours (Volaire, 1984). Notre premier objectif a ete de typer et de caracteriser cette ressource vegetate au niveau regional, premiere etape avant de pouvoir etudier les potentiels et les modalites d'amelioration pastorale de ces milieux.
Productivite Et Valeur Bromatologique Des Paturages Des Plateaux Bateke (Zaire),
2025
Universite Libre de Bruxelles
Productivite Et Valeur Bromatologique Des Paturages Des Plateaux Bateke (Zaire), N Basaula, J Lejoly
IGC Proceedings (1977-2023)
La region des plateaux Bateke a deja fait l'objet de nombreuses etudes botaniques (Duvigneaud, 1953). La plupart de ces travaux ant surtout privilegie !es aspects phytosociologiques et fioristiques de ces savanes. Par ailleurs, quelques recherches zootechniques ont ete realisees par l'INEAC sur le Plateau du Kwango (Druet, 1958). Tout compte fait, ii subsiste une carence sur la connaissance de ces savanes, precisement au point de vue de !'exploitation pastorale. L'etude de la productivite et de la valeur bromatologique des paturages naturels et du paturage artificiel a Brachiaria ruziziensis a ete l'une de nos preoccupations. Ces donnees devront permettre de mieux …
The Marsh Grassland And Herbage On Ruoergai Plateau In China,
2025
Northeast Normal University
The Marsh Grassland And Herbage On Ruoergai Plateau In China, Lang Hui-Qing, Chen Shu-Yun
IGC Proceedings (1977-2023)
Ruoergai plateau is located at an altitude from 3,600 to 4,000 metres above sea level in the northeast part of the Tibet plateau. In mountains and hills on the plateau are distributed subalpine meadows and the community of Kobresia tibetica and weeds. In the river valley, wide valley and the depression around lake rim among hills is distributed continuous marsh grassland with the area of 300 thousands ha., which is the main pasture on the plateau and the largest marsh grassland of plateau-type in China.
Compilation And Study Of Grassland Resource Map Of China (Scale- 1: 1,000,000),
2025
Chinese Academy of Sciences
Compilation And Study Of Grassland Resource Map Of China (Scale- 1: 1,000,000), Su Daxue
IGC Proceedings (1977-2023)
For compilation of Grassland Ressource Map of China (GRMC), it was necessary first of all to collect reliable data which is accurate and fairly up-to-date. A national standard of grassland classification and legend system must be worked out. Content, method and level of representation must be made standard. Criteria must be set for integration, inclusions or omissions in the map units. China's vast grasslands stretch over areas totalling 1,5 billion hectares. No standard survey had been carried out before. Basic data and maps needed for compilation of GRMC on scale 1 : 1,000,000 was lacking. Thus beginning in 1979, largescale …
Soil Cover, Land Evaluation And Protection In Inner Mongolia,
2025
Beijing Normal University
Soil Cover, Land Evaluation And Protection In Inner Mongolia, Li Tianjie, Zhao Ye
IGC Proceedings (1977-2023)
The compilation of 1:1, 500,000 soil map oflnner Mongolia by using visual interpretation of Landsat images (MSS, TM, RBV) is one of the important parts of the application project of remote sensing to the investigation of the grassland resources in Inner Mongolia Autonomous Region of China. Only by using visual intepretation of Landsat images could the soil map covering the area of more than one million square kilometers be compiled completely in three years. Landsat images comprehensively reveal soil types or soil association and their ecological environmental characteristics. Therefore, by using colours, texture and patterns of the remote sensing images, …
A Study Of Surface Water Resources And Grassland Environment In The Inner Mongolia With Remotely Sensed Method,
2025
Nanjing University
A Study Of Surface Water Resources And Grassland Environment In The Inner Mongolia With Remotely Sensed Method, Chen Qinluan, Xiang Jiangbo, Wang Huihui, Pan Tao
IGC Proceedings (1977-2023)
The characteristics of runoff yield in the soil surface of a drainage basin and the distribution of surface water resources in the Inner Mongolia Autonomous Region have been studied in detail with remote sensing in recent years. This study aims at offering some scientific evidences to adjust the structure ofland use in the cross-area of agriculture and animal husbandry and more reasonably to locate the bases for agriculture and husbandry.
Monitoring Of Weed Infestation Of Grasslands Using Landsat Data,
2025
Remote sensing lab, Tsukuba
Monitoring Of Weed Infestation Of Grasslands Using Landsat Data, T Akiyama, Y Yamagata, M Saibayama, H Hayashi, H Fujita
IGC Proceedings (1977-2023)
Pennisetum alopecuroides Spreng is one of the most aggressive weeds of tame pastures in the Aso district, which often causes the deterioration of the grasslands. It is thus important to develop methods of analysis of the weed dynamics in real time and techniques for effective weed control. Hayashi et al. (1986) observed that cutting carried out in September was the most effective method to prevent the growth of the weed. However, the vegetation survey methods currently used cannot monitor sudden changes of grassland vegetation over wide areas. Remote sensing is one of the promising techniques for monitoring grasslands where the …
Using Landsat Images For Grassland Mapping In The Inner-Mongolia Of China,
2025
Peking University
Using Landsat Images For Grassland Mapping In The Inner-Mongolia Of China, Mao Zan-You
IGC Proceedings (1977-2023)
There are about 900 000 km2 grassland in Inner-Mongolia including meadow steppe, typical steppe and desert steppe. It is the major basis of herbivorous animal products - beef, mutton, milk and leather (Fig. 1). Grassland research had been made many times in InnerMongolia region. Because the area is so vast that it needs ten more years to accomplish a general survey of grassland only applying satellite data can supply the macroscopic thematic maps for basic construction of grassland in shorter time. Besides supplying feed to the animals, the grassland has the important action for the improvement of regional environment, water …
Utilisation De La Teledetection Pour Reconnaitre Et Cartographier Les Types De Prariries Permanentes,
2025
INRA-SAD
Utilisation De La Teledetection Pour Reconnaitre Et Cartographier Les Types De Prariries Permanentes, M Benoit, Colette Girard, E Vaubernier
IGC Proceedings (1977-2023)
Les statistiques concernant les prairies sont souvent decevantes pour repondre aux questions posees par les agronomes. Ainsi les seules distinctions actuelles sont : prairies artificielles, prairies temporaires de 5 ans et moins et superficies toujours en herbe. En particulier, aucun element decrivant les pratiques mises en ceuvres ou les niveaux de production n'est accessible par ces sources. Nous avons etabli les liaisons entre les etats de vegetation et leurs determinants d'une part, et entre ces etats de vegetation et des reponses spectrales d'autre part. Les 39 parcelles de prairies choisies pour leur diversite ont ete regroupees en 9 classes, selon …
The Application Of Remote Sensing To Grassland Resource Survey Of The Counties In China,
2025
Beijing Agricultural University
The Application Of Remote Sensing To Grassland Resource Survey Of The Counties In China, Chang Xiao-Guo, Xia Jing-Xin, Chia Shen-Siu
IGC Proceedings (1977-2023)
The application of remote sensing techniques to grassland resource surveys of the counties is a key task and will play a significant role in the rational use of grassland resources. Since 1980, we have mainly studied the application of visual interpretation techniques to the surveys on 18 countries, Inner Mongolia and Hebei Provinces, in the north of China. Comprehensively utilizing several remote sensing materials, quantitatively analysing the samples with mathematical stat i��tics, a method of remote sensing survey, which is comparatively faster, more economical, easier for extension and suitable for the county-level surveys, has been found. An example of the …
Special Enhancements Using Noaa Satellite Data To Evaluate Grasslands Of Western Canada,
2025
Agriculture Canada
Special Enhancements Using Noaa Satellite Data To Evaluate Grasslands Of Western Canada, H Mccartney, J Whiting, J Polson
IGC Proceedings (1977-2023)
The grazing and hay lands of Saskatchewan, a Province in western Canada, extend from the wide open short grass prairie of the south to the northern roughland bush pastures of the Aspen Parkland (Populus tremuloides). These areas total 7,853,000 ha. This study is part of a continuing effort directed towards the development of operational remote sensing analysis techniques for the estimation of grazing conditions in both native and seeded pastures in Saskatchewan. Multi-spectral remotely sensed data from satellites has proven useful in assessing crop vigour. In most cases, where drought assessment or monitoring was required, large land areas were involved …
Land Use And Land Degredation In Inner Mongolia Autonomous Region, China, By Means Of Remote Sensing,
2025
Beijing Normal University
Land Use And Land Degredation In Inner Mongolia Autonomous Region, China, By Means Of Remote Sensing, Zhao Ji, Fan Weihong
IGC Proceedings (1977-2023)
The Inner Mongolia Autonomous Region is located in northern Chi:t).a and characterized by a semi-arid climate. Most of the area is used as pasture land, although a small part in the south is used as agricultural land to meet the need of food for the r��sidents. In recent years, the land is becoming degradated and its _environment becoming more sensitive to the climatic changes and the influence of human activity than it was before. This is, in part, due to the original productive pattern and irrational utilization of land. In this stu��y, remote sensing technique which is a very effec. …
A Preliminary Study On The Relationships Between Biomass And Environmental Factors In Natural Grassland In Hulunbeir,
2025
Grassland Institute of Hulunbeir League,
A Preliminary Study On The Relationships Between Biomass And Environmental Factors In Natural Grassland In Hulunbeir, Pan Xueqing, Li Zhangchum, Lu Xinlong
IGC Proceedings (1977-2023)
The seasonal dynamic state of the above ground biomass (or herbage mass) of four main types of natural grassland were studied in Hulunbeir grassland. The four types were meadow steppe, Aneurolepidium chinense + Stipa grandis steppe, Aneurolepidium chinense steppe and tussock - small semi - shrubs steppe. The results of the research show that the herbage mass of all four types have strong positive correlations with the monthly accumulated temperature, mean temperature, and precipitation of the preceding month. Water is a major limiting factor to primary production in Hulunbeir grassland. This paper reports on the relationship between seasonal state of …
The Grassland Vegetation Structure, Productivity And Its Dynamics Of Ningxia,
2025
Ningxia Agricultural College Yungning
The Grassland Vegetation Structure, Productivity And Its Dynamics Of Ningxia, Guo Sijia, Xing Zhongzhi, Chen Yizhong, Li Kechang, Zhang Dongsheng, Ma Doucai
IGC Proceedings (1977-2023)
The Ningxia Hui Autonomous Region is situated in the semi-arid areas of northwest China, with an elevation of 1 100 m-2 200 m. The annual mean temperature is 7-9°C, the annual mean precipitation and evaporation are 118-660 mm and 1 400-2 400 mm respectively and the total hours of sunshine is 2 200-3 100 in a year (Guo Sijia et al., 1985). As Ningxia is located in the transitional section from semi-humid to semi-arid areas, there are multivarious types of native grassland in the region, but the zonal grasslands types are the steppe, desert-steppe and desert. During 1982-1986, observation stations …
Sociabilities, Morphologie Et Valeurs Nutritives Des Vegetations Prairiales,
2025
INRA
Sociabilities, Morphologie Et Valeurs Nutritives Des Vegetations Prairiales, J M. Dorioz, Ph Fleury, B Jeannin
IGC Proceedings (1977-2023)
Les especes dominantes des prairies presentent souvent une grande plasticite phenotypique dont les manifestations les plus spectaculaires au plan fourrager sont les changements du port, du volume relatif des organes et de la phenologie (Hedin, 1945; Hayne, 1983). L'amplitude de ces variations dans une meme region est mal connue. On peut done se demander dans quelle mesure elles remettent en cause la valeur indicatrice habituellement attribuee a ce type d'especes, en outre, s'il n'est pas utile de chercher a codifier la morphologie des dominantes, pour ameliorer les diagnostics agronomiques. Ce texte contient des reflexions autour de ces themes. 11 s'appuie …
Croissance Printainiere De La Prairire Permanente En Lorraine Dans Deux Petites Region Naturelles (Plateau Lorrain - Chatenois/ Bassigny),
2025
University of Kentucky
Croissance Printainiere De La Prairire Permanente En Lorraine Dans Deux Petites Region Naturelles (Plateau Lorrain - Chatenois/ Bassigny), A Benoit-Kung
IGC Proceedings (1977-2023)
Inspires des travaux de Lemaire, Salette et Laissus (Lemaire et al., 1982), Jes essais presentes ici ont pour objectif l'elaboration d'un modele de croissance de la prairie permanente, applique aux conditions semi-continentales des plaines de l'Est de la France. Afin de tester la variabilite inter regionale d'un tel modele, Jes essais ont ete implantes dans deux types de sols contrastes, les conditions climatiques etant identiques sur Jes deux secteurs. Cette demarche vise a l'etablissement de conseils aux agriculteurs en matiere de gestion de la fumure azotee en sortie d'hiver, sur prairies permanentes intensifiees.
Mapping Herbage Accumulation For The Hunter Region Of Australia Using Climatic Analysis, Growth Indices And Field Experiments, M J. Hill, M F. Hutchinson, A C. Kirby
IGC Proceedings (1977-2023)
Date on monthly and annual pasture production for use in farm budgeting, in farm management models and at the core of expert systems are rare for large areas of the Australian pastoral zone, and for large areas of the world. We have sought here to demonstrate a method of .overcoming this problem by the development of maps of annual and seasonal herbage accumulation for several types of improved pasture in the Hunter Region using comprehensive climatic data, a simple growth model (Fitzpatrick and Nix, 1975) and a small plot pasture trial at Scone (32°S).
